# A customer paid part of an invoice, or sent one payment covering several invoices, or paid too much — how do I record it against their account?

- **[United States (US-oriented professional accounting reference; the article itself names no jurisdiction) · sellers of services on credit using accounting software · accrual basis]** For services sold on credit, the seller normally raises an invoice that credits the sales account and debits accounts receivable; when the customer later pays that invoice, the seller would debit cash and credit accounts receivable — so the customer receipt is recorded against the receivable, not against sales a second time. → [CG-MCE-030#S01](#s-CG-MCE-030-S01)
- **[United States (US publisher; the article states no other jurisdiction) · businesses with accounts receivable and accounting software]** Cash should be applied against the customer's open unpaid invoices in the accounting software according to the invoices identified on the remittance advice accompanying the customer's payment - the remittance advice is the instruction that determines which invoices a receipt settles. → [CG-MCE-030#S09](#s-CG-MCE-030-S09)
- **[Not stated in the document; general bookkeeping description from a US-based publisher (AccountingTools, Inc., a US CPE provider) and not tied to any stated national regime · A business maintaining an accounts receivable subledger]** The ending balance of the accounts receivable ledger equals the aggregate amount of unpaid accounts receivable, so amounts already paid are not part of that ending balance. → [CG-MCE-030#S08](#s-CG-MCE-030-S08)
- **[United States (US publisher; the article states no other jurisdiction) · businesses with accounts receivable and accounting software]** Where a receipt arrives with no indication of which invoice it is meant to credit, the article's recommended handling is to record it either in a separate suspense account or as unapplied within the paying customer's own account, rather than allocating it to invoices by guess. → [CG-MCE-030#S14](#s-CG-MCE-030-S14)

## What this page establishes

- The bookkeeping rule behind applying a receipt to open invoices — Partly established (Required authority: authoritative professional or accounting standard. Highest achieved: high quality professional secondary reference, official platform documentation.)
- Remittance advice, allocation conventions, and keeping a record of why — Partly established
- How money you are holding for a customer sits on the books — Not established (Required authority: authoritative professional or accounting standard. Highest achieved: high quality professional secondary reference, official platform documentation.)
- How the main accounting systems show receipts, splits and customer credits — Not established
- Record the money against what the customer owes — not as fresh income — Partly established (Required authority: authoritative professional or accounting standard. Highest achieved: high quality professional secondary reference.)
- When they pay less than the invoice: the invoice stays open for the rest — Not established (Required authority: authoritative professional or accounting standard. Highest achieved: high quality professional secondary reference, official platform documentation.)
- One payment covering several invoices — and what to do when nothing says which — Established (Required authority: authoritative professional or accounting standard, high quality professional secondary reference. Highest achieved: high quality professional secondary reference, official platform documentation.)
- When they pay too much: what the extra is until you deal with it — Not established (Required authority: authoritative professional or accounting standard. Highest achieved: official platform documentation.)
- Checking it worked: the invoice's remaining balance and the customer's total — Not established
- Receipts and credits left unapplied — where they surface and how to clear them — Not established (Required authority: authoritative professional or accounting standard, official platform documentation. Highest achieved: high quality professional secondary reference, official platform documentation.)

## Record the money against what the customer owes — not as fresh income
<a id="need-CG-MCE-030-P1"></a>

- <a id="s-CG-MCE-030-S01"></a>For services sold on credit, the seller normally raises an invoice that credits the sales account and debits accounts receivable; when the customer later pays that invoice, the seller would debit cash and credit accounts receivable — so the customer receipt is recorded against the receivable, not against sales a second time. _(jurisdiction: United States (US-oriented professional accounting reference; the article itself names no jurisdiction), entity_scope: sellers of services on credit using accounting software, accounting_basis: accrual basis, conditions: stated as what the seller normally does; the payment entry is stated as what the seller 'would' do; illustrated for a single invoice; the article does not address part-payment of one invoice or one receipt settling several invoices)_ `CG-MCE-030#S01`
  > “When services are sold to a customer, the seller normally creates an invoice in its accounting software, which automatically creates an entry to credit the sales account and debit the accounts receivable account. When the customer later pays the invoice, the seller would debit the cash account and credit the accounts receivable account.” — [AccountingTools, Inc. (Steven Bragg) — Accounts receivable accounting](https://www.accountingtools.com/articles/accounts-receivable-accounting), 2025-12-17; Section 'Recording Sales of Services on Credit', first paragraph (TEXT.txt line 91). Verified 2026-09-09.

- <a id="s-CG-MCE-030-S02"></a>In the article's example, the invoicing entry itself both increases the accounts receivable asset shown in the balance sheet and increases sales shown in the income statement — the revenue is already in the income statement at invoicing. _(jurisdiction: United States (US-oriented professional accounting reference; the article itself names no jurisdiction), entity_scope: example entity 'ABC International' billing a customer $10,000 for services on credit, accounting_basis: accrual basis, conditions: stated as an illustrative example, not as a requirement)_ `CG-MCE-030#S02`
  > “This journal entry increases the accounts receivable asset for ABC, which appears as a short-term asset in its balance sheet . In addition, it increases sales, which appear in ABC's income statement .” — [AccountingTools, Inc. (Steven Bragg) — Accounts receivable accounting](https://www.accountingtools.com/articles/accounts-receivable-accounting), 2025-12-17; Section 'Recording Sales of Services on Credit', paragraph following the $10,000 billing example (TEXT.txt line 92). Verified 2026-09-09.

- <a id="s-CG-MCE-030-S03"></a>An account receivable is documented through an invoice that the seller is responsible for issuing to the customer, and that invoice describes what was sold, the amount owed (including sales taxes and freight charges) and when payment is due — so the invoice is the document identifying the individual open receivable. _(jurisdiction: United States (US-oriented professional accounting reference; the article itself names no jurisdiction), entity_scope: sellers with trade accounts receivable)_ `CG-MCE-030#S03`
  > “An account receivable is documented through an invoice , which the seller is responsible for issuing to the customer through a billing procedure . The invoice describes the goods or services that have been sold to the customer, the amount it owes the seller (including sales taxes and freight charges), and when it is supposed to pay.” — [AccountingTools, Inc. (Steven Bragg) — Accounts receivable accounting](https://www.accountingtools.com/articles/accounts-receivable-accounting), 2025-12-17; Section 'Overview of Accounts Receivable', second paragraph (TEXT.txt line 85). Verified 2026-09-09.

- <a id="s-CG-MCE-030-S04"></a>In a typical accounts receivable ledger transaction sequence, an account receivable is recorded first and a later payment transaction from the customer eliminates that account receivable; the article presents this as the typical case rather than as the only possible sequence. _(jurisdiction: Not stated in the document; general bookkeeping description from a US-based publisher (AccountingTools, Inc., a US CPE provider) and not tied to any stated national regime, entity_scope: A business maintaining an accounts receivable subledger, conditions: described as a 'typical' transaction, not an exhaustive or mandatory pattern)_ `CG-MCE-030#S04`
  > “A typical transaction entered into the accounts receivable ledger will record an account receivable, followed at a later date by a payment transaction from a customer that eliminates the account receivable.” — [AccountingTools, Inc. (Steven Bragg) — Accounts receivable ledger definition](https://www.accountingtools.com/articles/what-is-the-accounts-receivable-ledger.html), 2025-12-07; Section 'What is the Accounts Receivable Ledger?', second paragraph, first sentence. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S05"></a>Entering a customer name with the Customer ID field left blank signals to Sage 50 that payment was received from a non-customer and that the information entered will affect only the general ledger and not any customer records. _(jurisdiction: United States (Sage 50 U.S. product help), entity_scope: Users of Sage 50 recording a receipt from a non-customer, platform: Sage 50, platform_edition: Sage 50 version 2026, U.S. help edition, effective_from: 2026-06-17, conditions: the Customer ID field is left blank and a name is typed instead)_ `CG-MCE-030#S05`
  > “If you left this field blank, you can enter a customer name. This is the 
signal to Sage 50 that you received payment from a non-customer 
and that the information entered here will only affect the general ledger 
and not affect any customer records.” — [The Sage Group plc (Sage 50 U.S. product help) — Receive Money Fields](https://help-sage50.na.sage.com/en-us/2026/Content/Transactions/Accounts_Receivable/Payments_Receipts_Refunds/Receipts_Fields.htm), 2026-06-17; Receive Money Fields > Customer ID. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S06"></a>In QuickBooks Online, a Profit and Loss report run on the cash method might show an account called Unapplied cash payment income; QuickBooks itself creates that account, which the article says is for proper tax reporting. _(jurisdiction: United States (QuickBooks Online US / en-US help edition), entity_scope: QuickBooks Online users on the products listed by the article, platform: QuickBooks Online, platform_edition: US edition; article updated 8/4/2026, accounting_basis: cash, conditions: Profit and Loss report run using the cash method)_ `CG-MCE-030#S06`
  > “When running a Profit and Loss report using the cash method, you might see an account called Unapplied cash payment income . This account is created by QuickBooks for proper tax reporting.” — [Intuit Inc. — Unapplied cash payment income on your profit and loss](https://quickbooks.intuit.com/learn-support/en-us/help-article/financial-reports/unapplied-cash-payment-income-profit-loss/L35Y3Uvka_US_en_US), 2026-08-04; Body, opening paragraph under title 'Unapplied cash payment income on your profit and loss'. Verified 2026-09-09.

_Partly established. Established: the governing rule that money received from a customer is recorded against the receivable (S01); the governing rule that money received from a customer is applied to identified open invoices (S09). Missing: what breaks in the ledger when money received from a customer is instead posted straight to an income account; what breaks in the ledger when money received from a customer is left on the account without application._

_Required authority: authoritative professional or accounting standard. Highest achieved: high quality professional secondary reference._

## When they pay less than the invoice: the invoice stays open for the rest
<a id="need-CG-MCE-030-P2"></a>

- <a id="s-CG-MCE-030-S08"></a>The ending balance of the accounts receivable ledger equals the aggregate amount of unpaid accounts receivable, so amounts already paid are not part of that ending balance. _(jurisdiction: Not stated in the document; general bookkeeping description from a US-based publisher (AccountingTools, Inc., a US CPE provider) and not tied to any stated national regime, entity_scope: A business maintaining an accounts receivable subledger)_ `CG-MCE-030#S08`
  > “The ending balance of the accounts receivable ledger equals the aggregate amount of unpaid accounts receivable .” — [AccountingTools, Inc. (Steven Bragg) — Accounts receivable ledger definition](https://www.accountingtools.com/articles/what-is-the-accounts-receivable-ledger.html), 2025-12-07; Section 'What is the Accounts Receivable Ledger?', first paragraph, last sentence. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S10"></a>Where a customer does not pay an invoice in full, a credit memo may (not must) be recorded to eliminate the residual balance left on that invoice; the article names this as one available treatment of a short payment and does not state it is the only one. _(jurisdiction: Not stated in the document; general bookkeeping description from a US-based publisher (AccountingTools, Inc., a US CPE provider) and not tied to any stated national regime, entity_scope: A business maintaining an accounts receivable subledger, where a customer pays less than the full invoice amount, conditions: applies only where the customer does not pay the full invoice amount; permissive: 'may be recorded')_ `CG-MCE-030#S10`
  > “If a customer does not pay the full amount of an invoice, a credit memo may be recorded to eliminate the residual balance.” — [AccountingTools, Inc. (Steven Bragg) — Accounts receivable ledger definition](https://www.accountingtools.com/articles/what-is-the-accounts-receivable-ledger.html), 2025-12-07; Section 'What is the Accounts Receivable Ledger?', second paragraph, second sentence. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S11"></a>In the page's illustrative scenario, a $500 receipt split as $300 (full) against a $300 invoice and $200 (partial) against a $450 invoice leaves the second invoice with a $250 balance still to be paid; this is an example of split application, not a stated rule. _(jurisdiction: United States, entity_scope: Zoho Books organizations using the Payments Received module, platform: Zoho Books, platform_edition: US (US-EN help edition), conditions: worked example with specific figures; no tax, credit or rounding conditions stated)_ `CG-MCE-030#S11`
  > “Scenario: Patricia receives a payment of $500 from her customer Brandon, who has 2 outstanding invoices whose values are $300 and $450, respectively. Patricia can split the payment of $500 into $300 for the first invoice (full amount) and $200 for the second invoice (partial amount). So, the second invoice will still have a balance of $250 to be paid.” — [Zoho Corporation — Basic Functions in Payments Received | Help | Zoho Books](https://www.zoho.com/us/books/help/payments-received/basic-functions.html), Zoho Books US help edition (page header shows US-EN; other country editions are listed as separate editions); Section 'Record Payments Received' > sub-heading 'Record and Split Payment' — worked scenario. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S12"></a>The Pay check box pays the invoice in full; for a partial settlement the user enters the amount in Amount Paid, after which the Pay check box is automatically selected. _(jurisdiction: United States (Sage 50 U.S. product help), entity_scope: Users of Sage 50 applying a receipt to invoices in the Receive Money task window, platform: Sage 50, platform_edition: Sage 50 version 2026, U.S. help edition, effective_from: 2026-06-17, conditions: paying an invoice in full or partially)_ `CG-MCE-030#S12`
  > “Check this box to pay the invoice in full. To pay partially, enter the 
amount in Amount Paid ; the Pay check box is then automatically 
selected.” — [The Sage Group plc (Sage 50 U.S. product help) — Receive Money Fields](https://help-sage50.na.sage.com/en-us/2026/Content/Transactions/Accounts_Receivable/Payments_Receipts_Refunds/Receipts_Fields.htm), 2026-06-17; Receive Money Fields > Pay. Verified 2026-09-09.

_Not established from an authoritative source._

_Required authority: authoritative professional or accounting standard. Highest achieved: high quality professional secondary reference, official platform documentation._

## One payment covering several invoices — and what to do when nothing says which
<a id="need-CG-MCE-030-P3"></a>

- <a id="s-CG-MCE-030-S09"></a>Cash should be applied against the customer's open unpaid invoices in the accounting software according to the invoices identified on the remittance advice accompanying the customer's payment - the remittance advice is the instruction that determines which invoices a receipt settles. _(jurisdiction: United States (US publisher; the article states no other jurisdiction), entity_scope: businesses with accounts receivable and accounting software, conditions: applies where a remittance advice accompanies the payment)_ `CG-MCE-030#S09`
  > “Access the accounting software, call up the unpaid invoices for the relevant customer , and apply the cash to the invoices indicated on the remittance advice that accompanies each payment from the customer.” — [AccountingTools, Inc. (Steven Bragg) — Cash receipts procedure](https://www.accountingtools.com/articles/cash-receipts-procedure), 2025-12-04; Step 3. Apply Cash to Invoices. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S14"></a>Where a receipt arrives with no indication of which invoice it is meant to credit, the article's recommended handling is to record it either in a separate suspense account or as unapplied within the paying customer's own account, rather than allocating it to invoices by guess. _(jurisdiction: United States (US publisher; the article states no other jurisdiction), entity_scope: businesses with accounts receivable and accounting software, conditions: applies only when the payment carries no indication of the invoice to be credited; two alternatives are offered; the article does not rank them)_ `CG-MCE-030#S14`
  > “If there is no indication of which invoice is to be credited, record the payment either in a separate suspense account , or as unapplied but within the account of the customer from whom it came.” — [AccountingTools, Inc. (Steven Bragg) — Cash receipts procedure](https://www.accountingtools.com/articles/cash-receipts-procedure), 2025-12-04; Step 3. Apply Cash to Invoices. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S17"></a>Automatic cash application uses computer systems to remove the need to manually match customers' check payments to the invoices issued to them; the article states that manual matching is a major issue where a company receives a large number of customer payments daily, and especially where customers pay for several invoices with each payment. _(jurisdiction: US, entity_scope: companies receiving customer check payments against open accounts receivable, conditions: check payments; high daily payment volume; payments covering several invoices)_ `CG-MCE-030#S17`
  > “Automatic cash application involves the use of computer systems to eliminate the need for the manual matching of check payments from customers with the invoices issued to them. This is a major issue when a company receives a large number of customer payments every day, and especially when customers are paying for several invoices with each payment made.” — [AccountingTools, Inc. (Steven Bragg) — Automatic cash application](https://www.accountingtools.com/articles/automatic-cash-application), 2026-07-09; Section: "What is Automatic Cash Application?". Verified 2026-09-09.

- <a id="s-CG-MCE-030-S18"></a>Payments that remain unmatched after the automated matching steps are kicked out of the automated process for manual review. _(jurisdiction: US, entity_scope: companies operating automatic cash application over open accounts receivable, conditions: payment not matched by the preceding automated steps; step of a process the article says is generally followed)_ `CG-MCE-030#S18`
  > “Kick out all remaining payments for manual review.” — [AccountingTools, Inc. (Steven Bragg) — Automatic cash application](https://www.accountingtools.com/articles/automatic-cash-application), 2026-07-09; Section: "How Automatic Cash Application Works", fourth listed decision step. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S19"></a>In the Outstanding Transactions section the user ticks a checkbox for each invoice the payment is being recorded against, so one receipt can be directed at more than one invoice. _(jurisdiction: United States (en-US QuickBooks help edition), entity_scope: QuickBooks Online users recording an invoice payment, platform: QuickBooks Online, platform_edition: US edition, article updated 8/3/2026, effective_from: 2026-08-03)_ `CG-MCE-030#S19`
  > “Select the checkbox for each invoice you are recording a payment for.” — [Intuit Inc. — Record invoice payments](https://quickbooks.intuit.com/learn-support/en-us/help-article/invoicing/record-invoice-payments-quickbooks-online/L4ZadDW7F_US_en_US), 2026-08-03; Record invoice payments in QuickBooks Online (numbered steps, 'Outstanding Transactions' section). Verified 2026-09-09.

- <a id="s-CG-MCE-030-S20"></a>In Wave, a lump sum payment transaction must be split in order to record a payment against each remaining outstanding invoice. _(jurisdiction: Not stated in the document; Wave Help Center (en-us) article for the Wave web application, no country or region limitation given, entity_scope: Wave account holders recording a lump sum customer payment, platform: Wave (waveapps.com), platform_edition: not stated in the document, conditions: one payment covers more than one outstanding invoice)_ `CG-MCE-030#S20`
  > “The lump sum payment transaction must be split to record a payment on each remaining outstanding invoice.” — [Wave Financial Inc. (Wave Help Center) — Account for a lump sum invoice payment](https://support.waveapps.com/hc/en-us/articles/208621536-Account-for-a-lump-sum-invoice-payment), current Wave help centre article; no version or revision date stated in the pinned text (edition unverifiable - host returns 403 to the harness); Intro paragraph, under title "Account for a lump sum invoice payment". Verified 2026-09-09.

- <a id="s-CG-MCE-030-S21"></a>A single receipt can be split across several invoices by highlighting each applicable transaction and checking its Pay box until the Check Amount box equals the total of the receipt. _(jurisdiction: United States (Sage 50 U.S. product help), entity_scope: Users of Sage 50 applying a receipt to invoices in the Receive Money task window, platform: Sage 50, platform_edition: Sage 50 version 2026, U.S. help edition, effective_from: 2026-06-17, conditions: the receipt covers multiple invoices)_ `CG-MCE-030#S21`
  > “If the receipt covers multiple invoices, continue 
to highlight the applicable transactions and check the Pay box (at the 
far right of each invoice line), until the Check Amount box equals the 
total of the receipt.” — [The Sage Group plc (Sage 50 U.S. product help) — Receive Money Fields](https://help-sage50.na.sage.com/en-us/2026/Content/Transactions/Accounts_Receivable/Payments_Receipts_Refunds/Receipts_Fields.htm), 2026-06-17; Receive Money Fields > Amount Paid (If you are applying the amount to invoices). Verified 2026-09-09.

- <a id="s-CG-MCE-030-S22"></a>Zoho Books allows a manually recorded customer payment to be applied to that customer's outstanding invoices, and the payment amount can be split among those invoices either in full or in part. _(jurisdiction: United States, entity_scope: Zoho Books organizations using the Payments Received module, platform: Zoho Books, platform_edition: US (US-EN help edition), conditions: manual recording of payments)_ `CG-MCE-030#S22`
  > “You can manually record payments from customers, and choose to apply it on their outstanding invoices. The payment amount can be split among a customer’s outstanding invoices either in full or in part.” — [Zoho Corporation — Basic Functions in Payments Received | Help | Zoho Books](https://www.zoho.com/us/books/help/payments-received/basic-functions.html), Zoho Books US help edition (page header shows US-EN; other country editions are listed as separate editions); Section 'Record Payments Received' > sub-heading 'Record and Split Payment'. Verified 2026-09-09.

_Required authority: authoritative professional or accounting standard, high quality professional secondary reference. Highest achieved: high quality professional secondary reference, official platform documentation._

## When they pay too much: what the extra is until you deal with it
<a id="need-CG-MCE-030-P4"></a>

- <a id="s-CG-MCE-030-S24"></a>While a customer deposit is held, the company has an obligation either to provide the indicated goods or services or to return the funds — the two routes by which the held amount is resolved. _(jurisdiction: United States (US-oriented professional accounting publisher; the article states no other jurisdiction), entity_scope: a company holding cash received from a customer before performance, conditions: applies to a customer deposit as defined in the article)_ `CG-MCE-030#S24`
  > “The company has an obligation to provide the indicated goods or services, or to return the funds.” — [AccountingTools, Inc. (Steven Bragg) — Customer deposit definition](https://www.accountingtools.com/articles/what-is-a-customer-deposit.html), 2026-02-17; Section "What is a Customer Deposit?", second sentence. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S27"></a>Once the company performs under its contract, it clears the deposit liability by debiting the liability account and crediting revenue to record the sale; the article adds that this may occur in stages where deliverables go out over a period of time. _(jurisdiction: United States (US-oriented professional accounting publisher; the article states no other jurisdiction), entity_scope: the company holding a customer deposit, accounting_basis: accrual accounting as described by the article; no standard cited, conditions: on performance under the contract with the customer; staged clearing only where deliverables are sent out over a period of time)_ `CG-MCE-030#S27`
  > “Once the company performs under its contract with the customer, it debits the liability account to eliminate the liability, and credits a revenue account to record the sale. This may occur in stages, if deliverables are sent out over a period of time.” — [AccountingTools, Inc. (Steven Bragg) — Customer deposit definition](https://www.accountingtools.com/articles/what-is-a-customer-deposit.html), 2026-02-17; Section "Accounting for a Customer Deposit", sentences 2-3. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S29"></a>Intuit's QuickBooks Online US help article states that when a customer overpays, the user can apply the credit to an invoice, give a refund, or enter the extra payment as a tip; the article does not present these as the only possible handling routes. _(jurisdiction: United States (QuickBooks Online US edition support site, en-us), entity_scope: QuickBooks Online users recording a customer overpayment, platform: QuickBooks Online, platform_edition: US edition, article updated 8/5/2026, effective_from: 2026-08-05, conditions: customer overpays)_ `CG-MCE-030#S29`
  > “If a customer overpays, you can apply the credit to an invoice, give a refund, or enter the extra payment as a tip.” — [Intuit Inc. — Handle a customer credit or overpayment in QuickBooks Online](https://quickbooks.intuit.com/learn-support/en-us/help-article/customer-refunds-credits/handle-customer-credit-overpayment-quickbooks/L1Z4OZkKB_US_en_US), 2026-08-05; Introductory summary, under the title 'Handle a customer credit or overpayment in QuickBooks Online' (before the heading 'Apply the credit or refund the customer'). Verified 2026-09-09.

- <a id="s-CG-MCE-030-S30"></a>An advance recorded from a customer in Zoho Books can be refunded in full or in part. _(jurisdiction: United States, entity_scope: Zoho Books organizations using the Payments Received module, platform: Zoho Books, platform_edition: US (US-EN help edition), conditions: applies where an advance has been recorded from the customer)_ `CG-MCE-030#S30`
  > “If you have recorded an advance from a customer, you can choose to refund that amount in full or in part.” — [Zoho Corporation — Basic Functions in Payments Received | Help | Zoho Books](https://www.zoho.com/us/books/help/payments-received/basic-functions.html), Zoho Books US help edition (page header shows US-EN; other country editions are listed as separate editions); Section 'Refund Payments'. Verified 2026-09-09.

_Not established from an authoritative source._

_Required authority: authoritative professional or accounting standard. Highest achieved: official platform documentation._

## Checking it worked: the invoice's remaining balance and the customer's total
<a id="need-CG-MCE-030-P5"></a>

- See above: In the page's illustrative scenario, a $500 receipt split as $300 (full) against a $300 invoice and $200 (partial) against a $450 invoice leaves the second invoice with a $250 balance still to be paid; this is an example of split application, not a stated rule. ([CG-MCE-030#S11](#s-CG-MCE-030-S11))

- <a id="s-CG-MCE-030-S26"></a>After the overpayment is transferred to the customer credit account, the invoice's balance due reads zero and the remainder of the funds received sits as a credit in the created account. _(jurisdiction: Not stated in the document; Wave Help Center (en-us) article for the Wave web application, no country or region limitation given, entity_scope: Wave account holders who transferred an overpayment to a customer credit account, platform: Wave (waveapps.com), platform_edition: not stated in the document, conditions: overpayment transferred to the customer credit account via Manage overpayment)_ `CG-MCE-030#S26`
  > “This makes the balance due on the invoice zero and credits the created lump sum account for the remainder of the funds received.” — [Wave Financial Inc. (Wave Help Center) — Account for a lump sum invoice payment](https://support.waveapps.com/hc/en-us/articles/208621536-Account-for-a-lump-sum-invoice-payment), current Wave help centre article; no version or revision date stated in the pinned text (edition unverifiable - host returns 403 to the harness); Section "Account for a lump sum invoice payment received with Wave’s online payments", sentence after the Manage overpayment steps. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S31"></a>After the payment transaction is saved, the invoice status updates and the customer's outstanding balance decreases correspondingly. _(jurisdiction: United States (en-US QuickBooks help edition), entity_scope: QuickBooks Online and QuickBooks Solopreneur users who have saved a recorded invoice payment, platform: QuickBooks Online / QuickBooks Solopreneur, platform_edition: US edition, article updated 8/3/2026, effective_from: 2026-08-03, conditions: after the payment transaction is saved)_ `CG-MCE-030#S31`
  > “Once you save the transaction, the invoice status updates, and the customer's outstanding balance decreases accordingly.” — [Intuit Inc. — Record invoice payments](https://quickbooks.intuit.com/learn-support/en-us/help-article/invoicing/record-invoice-payments-quickbooks-online/L4ZadDW7F_US_en_US), 2026-08-03; Results. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S32"></a>Any surplus of the amount received over the amount to apply is shown as an amount to credit. _(jurisdiction: United States (en-US QuickBooks help edition), entity_scope: QuickBooks Online users recording an invoice payment where the receipt exceeds the amount applied, platform: QuickBooks Online, platform_edition: US edition, article updated 8/3/2026, effective_from: 2026-08-03, conditions: only where the amount received exceeds the amount to apply)_ `CG-MCE-030#S32`
  > “Any surplus between the amount to apply and amount received shows as an amount to credit.” — [Intuit Inc. — Record invoice payments](https://quickbooks.intuit.com/learn-support/en-us/help-article/invoicing/record-invoice-payments-quickbooks-online/L4ZadDW7F_US_en_US), 2026-08-03; Record invoice payments in QuickBooks Online — sub-bullet under the PAYMENT column adjustment step. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S33"></a>Where several invoices are selected, the open balance of each selected invoice appears in the PAYMENT column. _(jurisdiction: United States (en-US QuickBooks help edition), entity_scope: QuickBooks Online users recording one payment against multiple selected invoices, platform: QuickBooks Online, platform_edition: US edition, article updated 8/3/2026, effective_from: 2026-08-03, conditions: multiple invoices selected)_ `CG-MCE-030#S33`
  > “If you select multiple invoices, the open balance for each appears in the PAYMENT column.” — [Intuit Inc. — Record invoice payments](https://quickbooks.intuit.com/learn-support/en-us/help-article/invoicing/record-invoice-payments-quickbooks-online/L4ZadDW7F_US_en_US), 2026-08-03; Record invoice payments in QuickBooks Online — sub-bullet under the Outstanding Transactions checkbox step. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S34"></a>The Amount to Pay field shows the total of the amounts entered in the PAYMENT column. _(jurisdiction: United States (en-US QuickBooks help edition), entity_scope: QuickBooks Online users recording an invoice payment, platform: QuickBooks Online, platform_edition: US edition, article updated 8/3/2026, effective_from: 2026-08-03)_ `CG-MCE-030#S34`
  > “The Amount to Pay field displays the total from the PAYMENT column.” — [Intuit Inc. — Record invoice payments](https://quickbooks.intuit.com/learn-support/en-us/help-article/invoicing/record-invoice-payments-quickbooks-online/L4ZadDW7F_US_en_US), 2026-08-03; Record invoice payments in QuickBooks Online — sub-bullet under the PAYMENT column adjustment step. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S35"></a>The Amount Due field identifies the invoice's current unpaid balance, and Sage 50 displays it only when the receipt is being applied to invoices. _(jurisdiction: United States (Sage 50 U.S. product help), entity_scope: Users of Sage 50 applying a receipt to invoices in the Receive Money task window, platform: Sage 50, platform_edition: Sage 50 version 2026, U.S. help edition, effective_from: 2026-06-17, conditions: the receipt is being applied to invoices)_ `CG-MCE-030#S35`
  > “This identifies the current unpaid balance 
for the invoice. Sage 50 displays this only if you are applying 
the receipt to invoices.” — [The Sage Group plc (Sage 50 U.S. product help) — Receive Money Fields](https://help-sage50.na.sage.com/en-us/2026/Content/Transactions/Accounts_Receivable/Payments_Receipts_Refunds/Receipts_Fields.htm), 2026-06-17; Receive Money Fields > Amount Due. Verified 2026-09-09.

_Not established from an authoritative source._

## Receipts and credits left unapplied — where they surface and how to clear them
<a id="need-CG-MCE-030-P6"></a>

- See above: In QuickBooks Online, a Profit and Loss report run on the cash method might show an account called Unapplied cash payment income; QuickBooks itself creates that account, which the article says is for proper tax reporting. ([CG-MCE-030#S06](#s-CG-MCE-030-S06))

- See above: Where a receipt arrives with no indication of which invoice it is meant to credit, the article's recommended handling is to record it either in a separate suspense account or as unapplied within the paying customer's own account, rather than allocating it to invoices by guess. ([CG-MCE-030#S14](#s-CG-MCE-030-S14))

- <a id="s-CG-MCE-030-S36"></a>On the Open Invoices report, an unapplied customer payment surfaces as a row whose Transaction Type column reads 'Payment'. _(jurisdiction: United States (QuickBooks Online US / en-US help edition), entity_scope: QuickBooks Online users on the products listed by the article, platform: QuickBooks Online, platform_edition: US edition; article updated 8/4/2026, conditions: within the Open Invoices report for the chosen report period)_ `CG-MCE-030#S36`
  > “In the Transaction Type column, locate any transaction listed as a Payment .” — [Intuit Inc. — Unapplied cash payment income on your profit and loss](https://quickbooks.intuit.com/learn-support/en-us/help-article/financial-reports/unapplied-cash-payment-income-profit-loss/L35Y3Uvka_US_en_US), 2026-08-04; Step 1: Find unapplied cash payments on the Open Invoices report, fourth sub-step. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S37"></a>The article frames the resolution of Unapplied cash payment income as finding outstanding customer payments and applying them to the correct sales forms. _(jurisdiction: United States (QuickBooks Online US / en-US help edition), entity_scope: QuickBooks Online users on the products listed by the article, platform: QuickBooks Online, platform_edition: US edition; article updated 8/4/2026, accounting_basis: cash)_ `CG-MCE-030#S37`
  > “Follow these steps to find and apply outstanding customer payments to the correct sales forms.” — [Intuit Inc. — Unapplied cash payment income on your profit and loss](https://quickbooks.intuit.com/learn-support/en-us/help-article/financial-reports/unapplied-cash-payment-income-profit-loss/L35Y3Uvka_US_en_US), 2026-08-04; Heading 'How to resolve Unapplied Cash Payment Income', introductory line. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S38"></a>Once all unapplied payments have been applied, a re-run Profit and Loss report should no longer carry the Unapplied cash payment income account — the article's stated confirmation that the payments are now applied. _(jurisdiction: United States (QuickBooks Online US / en-US help edition), entity_scope: QuickBooks Online users on the products listed by the article, platform: QuickBooks Online, platform_edition: US edition; article updated 8/4/2026, accounting_basis: cash, conditions: all unapplied payments have been applied)_ `CG-MCE-030#S38`
  > “After applying all unapplied payments, run your Profit and Loss report again. The Unapplied cash payment income account should no longer be on the report.” — [Intuit Inc. — Unapplied cash payment income on your profit and loss](https://quickbooks.intuit.com/learn-support/en-us/help-article/financial-reports/unapplied-cash-payment-income-profit-loss/L35Y3Uvka_US_en_US), 2026-08-04; Step 4: Check your Profit and Loss report. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S39"></a>On the Zoho Books Payments Received page, a payment carrying an over/excess amount shows different values in the Amount and the Unused Amount columns, which is how such payments can be spotted there. _(jurisdiction: United States, entity_scope: Zoho Books organizations using the Payments Received module, platform: Zoho Books, platform_edition: US (US-EN help edition), conditions: applies to payments that have over/excess amounts)_ `CG-MCE-030#S39`
  > “Pro Tip: Payments which have over/excess payments will have different values for the Amount and the Unused Amount in the Payments Received page.” — [Zoho Corporation — Basic Functions in Payments Received | Help | Zoho Books](https://www.zoho.com/us/books/help/payments-received/basic-functions.html), Zoho Books US help edition (page header shows US-EN; other country editions are listed as separate editions); Section 'Record Payments Received' > sub-heading 'Over Payments' — 'Pro Tip' callout. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S40"></a>If credit is still left in the customer's credit account once payments have been applied to the invoices, that remaining overpayment still has to be accounted for. _(jurisdiction: Not stated in the document; Wave Help Center (en-us) article for the Wave web application, no country or region limitation given, entity_scope: Wave account holders with residual customer credit, platform: Wave (waveapps.com), platform_edition: not stated in the document, conditions: funds remain in the customer's credit account after applying payments)_ `CG-MCE-030#S40`
  > “If funds remain in the customer's credit account after applying payments to the invoices, you will need to account for the overpayment .” — [Wave Financial Inc. (Wave Help Center) — Account for a lump sum invoice payment](https://support.waveapps.com/hc/en-us/articles/208621536-Account-for-a-lump-sum-invoice-payment), current Wave help centre article; no version or revision date stated in the pinned text (edition unverifiable - host returns 403 to the harness); Section "Account for a lump sum invoice payment received with Wave’s online payments", closing sentence of the article. Verified 2026-09-09.

_Not established from an authoritative source._

_Required authority: authoritative professional or accounting standard, official platform documentation. Highest achieved: high quality professional secondary reference, official platform documentation._

## The bookkeeping rule behind applying a receipt to open invoices
<a id="need-CG-MCE-030-C1"></a>

- See above: For services sold on credit, the seller normally raises an invoice that credits the sales account and debits accounts receivable; when the customer later pays that invoice, the seller would debit cash and credit accounts receivable — so the customer receipt is recorded against the receivable, not against sales a second time. ([CG-MCE-030#S01](#s-CG-MCE-030-S01))

- <a id="s-CG-MCE-030-S07"></a>The article states that the accounts receivable ledger is useful for holding in one location a record of amounts invoiced to customers, together with credit memos and (more rarely) debit memos issued to them and all payments made by them against invoices. _(jurisdiction: Not stated in the document; general bookkeeping description from a US-based publisher (AccountingTools, Inc., a US CPE provider) and not tied to any stated national regime, entity_scope: A business that makes credit sales and maintains an accounts receivable subledger, conditions: stated as a usefulness of the ledger ('is useful for'), not as a requirement; debit memos described as appearing 'more rarely')_ `CG-MCE-030#S07`
  > “It is useful for segregating into one location a record of all amounts invoiced to customers , as well as all credit memos and (more rarely) debit memos issued to them, and all payments made against invoices by them.” — [AccountingTools, Inc. (Steven Bragg) — Accounts receivable ledger definition](https://www.accountingtools.com/articles/what-is-the-accounts-receivable-ledger.html), 2025-12-07; Section 'What is the Accounts Receivable Ledger?', first paragraph. Verified 2026-09-09.

- See above: The ending balance of the accounts receivable ledger equals the aggregate amount of unpaid accounts receivable, so amounts already paid are not part of that ending balance. ([CG-MCE-030#S08](#s-CG-MCE-030-S08))

- See above: Cash should be applied against the customer's open unpaid invoices in the accounting software according to the invoices identified on the remittance advice accompanying the customer's payment - the remittance advice is the instruction that determines which invoices a receipt settles. ([CG-MCE-030#S09](#s-CG-MCE-030-S09))

_Partly established. Established: how a customer receipt is recorded against accounts receivable (S01); how a customer receipt is applied to identified open invoices (S09); the case where the receipt settles several invoices (S09). Missing: the case where the receipt settles only part of an invoice._

_Required authority: authoritative professional or accounting standard. Highest achieved: high quality professional secondary reference, official platform documentation._

## Remittance advice, allocation conventions, and keeping a record of why
<a id="need-CG-MCE-030-C2"></a>

- See above: Cash should be applied against the customer's open unpaid invoices in the accounting software according to the invoices identified on the remittance advice accompanying the customer's payment - the remittance advice is the instruction that determines which invoices a receipt settles. ([CG-MCE-030#S09](#s-CG-MCE-030-S09))

- See above: Where a receipt arrives with no indication of which invoice it is meant to credit, the article's recommended handling is to record it either in a separate suspense account or as unapplied within the paying customer's own account, rather than allocating it to invoices by guess. ([CG-MCE-030#S14](#s-CG-MCE-030-S14))

- <a id="s-CG-MCE-030-S15"></a>Where an unidentified receipt is held as unapplied within the customer's account, a photocopy of the check should be made and retained for applying the payment at a later date, so that the check itself can still be deposited the same day. _(jurisdiction: United States (US publisher; check photocopy and same-day deposit practice; the article states no other jurisdiction), entity_scope: businesses with accounts receivable receiving checks, conditions: applies to the 'unapplied within the customer's account' alternative, not the suspense-account alternative)_ `CG-MCE-030#S15`
  > “In the latter situation, make a photocopy of the check and retain it for application purposes at a later date, so that the check can still be deposited on the current date.” — [AccountingTools, Inc. (Steven Bragg) — Cash receipts procedure](https://www.accountingtools.com/articles/cash-receipts-procedure), 2025-12-04; Step 3. Apply Cash to Invoices. Verified 2026-09-09.

- <a id="s-CG-MCE-030-S16"></a>For payments not matched by the exact single-invoice test, the process generally applies cash across several invoices only where the cash amount equals the exact combined amount of several invoices that have just come due for payment. _(jurisdiction: US, entity_scope: companies applying a single customer receipt across several open invoices, conditions: payment not matched by the prior single-invoice exact-match step; invoices have just come due for payment; step of a process the article says is generally followed)_ `CG-MCE-030#S16`
  > “Of the remaining payments, only match cash to invoices where the cash amount matches the exact amount of several invoices that have just come due for payment.” — [AccountingTools, Inc. (Steven Bragg) — Automatic cash application](https://www.accountingtools.com/articles/automatic-cash-application), 2026-07-09; Section: "How Automatic Cash Application Works", third listed decision step. Verified 2026-09-09.

_Partly established. Established: what remittance information or customer instruction determines the intended application of a receipt (S09). Missing: the recognised conventions for allocating an unidentified receipt across several open invoices; the expectation that the basis on which a receipt was allocated - the instruction relied on or the default convention applied - is recorded with the receipt; the expectation that the recorded basis on which a receipt was allocated is kept._

## How money you are holding for a customer sits on the books
<a id="need-CG-MCE-030-C3"></a>

- See above: Where a receipt arrives with no indication of which invoice it is meant to credit, the article's recommended handling is to record it either in a separate suspense account or as unapplied within the paying customer's own account, rather than allocating it to invoices by guess. ([CG-MCE-030#S14](#s-CG-MCE-030-S14))

- See above: While a customer deposit is held, the company has an obligation either to provide the indicated goods or services or to return the funds — the two routes by which the held amount is resolved. ([CG-MCE-030#S24](#s-CG-MCE-030-S24))

- <a id="s-CG-MCE-030-S25"></a>Refundable deposits are recorded as liabilities when received and stay on the balance sheet until they are either refunded to the customer or applied to a completed sale. _(jurisdiction: United States (US-oriented professional accounting publisher; the article states no other jurisdiction), entity_scope: entities holding refundable customer deposits, accounting_basis: accrual accounting as described by the article; no standard cited, conditions: refundable deposits)_ `CG-MCE-030#S25`
  > “Refundable deposits are recorded as liabilities when received and remain on the balance sheet until either refunded to the customer or applied to a completed sale.” — [AccountingTools, Inc. (Steven Bragg) — Customer deposit definition](https://www.accountingtools.com/articles/what-is-a-customer-deposit.html), 2026-02-17; Section "FAQs", answer to "How are refundable versus nonrefundable deposits treated?". Verified 2026-09-09.

- See above: After the overpayment is transferred to the customer credit account, the invoice's balance due reads zero and the remainder of the funds received sits as a credit in the created account. ([CG-MCE-030#S26](#s-CG-MCE-030-S26))

_Not established from an authoritative source._

_Required authority: authoritative professional or accounting standard. Highest achieved: high quality professional secondary reference, official platform documentation._

## How the main accounting systems show receipts, splits and customer credits
<a id="need-CG-MCE-030-C4"></a>

- See above: The Pay check box pays the invoice in full; for a partial settlement the user enters the amount in Amount Paid, after which the Pay check box is automatically selected. ([CG-MCE-030#S12](#s-CG-MCE-030-S12))

- See above: In the Outstanding Transactions section the user ticks a checkbox for each invoice the payment is being recorded against, so one receipt can be directed at more than one invoice. ([CG-MCE-030#S19](#s-CG-MCE-030-S19))

- See above: In Wave, a lump sum payment transaction must be split in order to record a payment against each remaining outstanding invoice. ([CG-MCE-030#S20](#s-CG-MCE-030-S20))

- See above: Zoho Books allows a manually recorded customer payment to be applied to that customer's outstanding invoices, and the payment amount can be split among those invoices either in full or in part. ([CG-MCE-030#S22](#s-CG-MCE-030-S22))

- See above: After the payment transaction is saved, the invoice status updates and the customer's outstanding balance decreases correspondingly. ([CG-MCE-030#S31](#s-CG-MCE-030-S31))

- See above: Any surplus of the amount received over the amount to apply is shown as an amount to credit. ([CG-MCE-030#S32](#s-CG-MCE-030-S32))

- <a id="s-CG-MCE-030-S41"></a>In the Solopreneur bank-linked flow, the user enters the payment amount in an 'Amount to apply' field, so the amount applied to the invoice is entered explicitly. _(jurisdiction: United States (en-US QuickBooks help edition), entity_scope: QuickBooks Solopreneur users recording a payment a customer linked from a bank, platform: QuickBooks Solopreneur, platform_edition: US edition, article updated 8/3/2026, effective_from: 2026-08-03, conditions: bank-linked payment flow in Solopreneur)_ `CG-MCE-030#S41`
  > “Enter the payment amount in the Amount to apply field.” — [Intuit Inc. — Record invoice payments](https://quickbooks.intuit.com/learn-support/en-us/help-article/invoicing/record-invoice-payments-quickbooks-online/L4ZadDW7F_US_en_US), 2026-08-03; Record invoice payments in QuickBooks Solopreneur > 'For payments that customers link from a bank' (numbered steps, after 'Select Next'). Verified 2026-09-09.

- <a id="s-CG-MCE-030-S42"></a>QuickBooks Online can leave a credit balance remaining from an overpayment after it is applied to one invoice, and that remaining balance can be applied toward another open invoice by selecting it — so one overpayment credit can be split across more than one invoice. _(jurisdiction: United States (QuickBooks Online US edition support site, en-us), entity_scope: QuickBooks Online users applying an overpayment credit, platform: QuickBooks Online, platform_edition: US edition, article updated 8/5/2026, effective_from: 2026-08-05, conditions: a credit balance remains from the overpayment; another open invoice exists)_ `CG-MCE-030#S42`
  > “If a credit balance remains from the overpayment, you can apply it toward another open invoice by selecting it.” — [Intuit Inc. — Handle a customer credit or overpayment in QuickBooks Online](https://quickbooks.intuit.com/learn-support/en-us/help-article/customer-refunds-credits/handle-customer-credit-overpayment-quickbooks/L1Z4OZkKB_US_en_US), 2026-08-05; Heading 'Apply the credit or refund the customer' > 'Option 1: Apply the credit' > 'Apply the credit to an existing invoice', step 4. Verified 2026-09-09.

_Not established from an authoritative source._

## Not yet fully established from an authoritative source

- Establish how a customer receipt is recorded against accounts receivable and applied to identified open invoices, including the case where the receipt settles only part of an invoice and the case where it settles several. _(partly established; below the required authority class)_
- Establish what remittance information or customer instruction determines the intended application of a receipt, and the recognised conventions for allocating an unidentified receipt across several open invoices, together with the expectation that the basis on which a receipt was allocated - the instruction relied on or the default convention applied - is recorded with the receipt and kept, so the allocation can be explained and revisited later. _(partly established)_
- Establish how an amount received from a customer in excess of what is owed, and an unapplied receipt generally, are carried on the books until they are applied or returned, and what each represents while held. _(not established; below the required authority class)_
- Establish how mainstream small-business accounting systems represent receipt application, partial settlement, application split across several invoices, and an unapplied customer credit, and what the invoice and customer balances read in each state. _(not established)_
- Establish the governing rule that money received from a customer is recorded against the receivable and applied to identified open invoices, and explain what breaks in the ledger when it is instead posted straight to an income account or left on the account without application. _(partly established; below the required authority class)_
- Explain the short-payment case: how a receipt smaller than the invoice is recorded, how the invoice stays open for exactly its residual, and how that residual is presented on the customer's account. _(not established; below the required authority class)_
- Explain the multi-invoice case: how a single receipt is split across the specific invoices it settles, how the intended split is read from the customer's remittance information, and what a business should do — and record — when the money arrives with no instruction at all. _(established; below the required authority class)_
- Explain the overpayment case: establish that the excess is not revenue of the business, identify what it represents on the books while it is held, and set out the routes by which it is resolved. _(not established; below the required authority class)_
- Show, for each of the three shapes, what the invoice-level remaining balance and the customer's total account balance should read afterwards, so the user can verify the recording rather than assume it worked. _(not established)_
- Identify unapplied receipts and unapplied customer credits as a state the ledger can be left in, explain where they surface, and establish that they must be applied or resolved rather than allowed to accumulate against the customer. _(not established; below the required authority class)_

## Related

- [What has to be on a customer invoice for it to work as a business record, and how should I number and issue invoices?](https://uppago.com/resources/what-has-to-be-on-a-customer-invoice-for-it-to-work-as-a-business-record-and-how)
- [What is an accounts receivable aging report, and how do I read and use it?](https://uppago.com/resources/what-is-an-accounts-receivable-aging-report-and-how-do-i-read-and-use-it)
- [My accounts receivable shows invoices as unpaid that customers already paid — how do I find and fix the wrong balances?](https://uppago.com/resources/my-accounts-receivable-shows-invoices-as-unpaid-that-customers-already-paid-how)
- [How do I write off a customer invoice I'm never going to collect, and what do I need on file to support the write-off?](https://uppago.com/resources/how-do-i-write-off-a-customer-invoice-i-m-never-going-to-collect-and-what-do-i)
- [A customer paid a deposit or retainer before the work was done — how do I record it, and how do I apply it to the invoice later?](https://uppago.com/resources/a-customer-paid-a-deposit-or-retainer-before-the-work-was-done-how-do-i-record)
- [I need to refund a customer or cancel an invoice I already recorded — how do I do it without just deleting the invoice?](https://uppago.com/resources/i-need-to-refund-a-customer-or-cancel-an-invoice-i-already-recorded-how-do-i-do)

_Reference date 2026-09-07. Statements are quoted verbatim from their sources; scope and verification dates are shown on each._