What it means
A customer sends a bank transfer, but it remains in an unapplied cash account and a collector still sees the invoice as overdue. Customer billing unapplied cash investigation coverage asks whether every material unmatched receipt receives a documented, timely attempt to identify its proper destination.
Used well, it ensures received money is investigated fairly and does not quietly sit while the customer is chased, with the unresolved amount kept clearly visible to billing. Define unapplied cash as funds received but not posted to a specific customer obligation or other authorised account state.
Stripe describes automatic and manual cash-balance reconciliation, including matching by invoice reference or amount, and when those routes fail review is needed rather than a random posting. Start with the bank or processor receipt record, amount, currency and date, and distinguish settled cash from a pending transfer.
Assign an investigator and due date once the receipt is identified as unapplied, and check remittance advice, payer name, bank reference, invoice number and recent customer communications. If the payer is a group treasury unit, verify which subsidiary's obligation the transfer covers, and for multiple invoices paid together recover a breakdown and record each allocation separately.
If two invoices have equal amounts do not choose one solely because it is older, and if an invoice was voided do not apply money to it merely because its number appears in a reference. If the customer overpaid, distinguish excess cash from a misapplied receipt, since a credit balance or refund may be appropriate under the terms; if the funds appear fraudulent or from an unknown source, follow the finance and compliance route before refunding or applying them.
For foreign-currency transfers check the actual received amount and exchange details rather than comparing nominal figures. If a plausible payment covers an overdue invoice, flag collection staff so they do not send an inaccurate demand during the investigation, keeping the flag scoped to the disputed invoice.
Keep a record of what was checked and what remains unknown, because a status changed to in review without work does not count, and assign the next check. Define an adequate investigation as documented checks of available matching evidence and a next step or final disposition, using a materiality threshold and time window matched to risk without ignoring small receipts that belong to customers.
For the rate, count unapplied receipts identified during the period whose investigation deadline has arrived, including still-open cases, and show the amount and age of unresolved cash beside coverage because a high review rate can coexist with a large stranded balance. Segment causes (missing reference, wrong entity, timing difference, duplicate transfer, cancelled invoice or system integration failure) and audit the source bank event, investigation notes, customer contact if authorised and final posting or return.
If the same customer repeatedly omits references, improve payment instructions rather than blaming them after every transfer, and if automation matches to the wrong invoice treat that as a separate allocation accuracy issue and correct the ledger. Where a customer asks whether a transfer was received, distinguish bank receipt from allocation and give a truthful status; if an investigator hands the case to another team keep the original receipt date and next owner so the clock does not restart; for a large unmatched amount consider whether it masks several invoices or an account-wide setup error; and preserve the payment reference in a controlled ledger so later statements can explain how the balance changed.
In practice
Real-world examples.
Example
A transfer of $6,200 arrives with no reference. Billing checks the payer name, bank reference and recent remittance emails, finds two candidate invoices, and asks the customer for a breakdown before posting anything. The investigation is logged with the date, evidence checked and next step.
Example
A group treasury payment of $45,000 covers invoices belonging to three subsidiaries. The investigation confirms each subsidiary's allocation from the remittance file instead of crediting the largest account. Each allocation is recorded separately so later statements reconcile.
Example
A customer's transfer is still pending at the bank. It is not counted as unapplied cash, and so is not in the denominator, until the defined receipt state occurs. Billing keeps a watch on the item so it enters the queue the day the funds settle.
Formula
Calculation
Illustrative coverage = identified unapplied receipts with documented matching investigation by deadline / all identified unapplied receipts due for investigation x 100.
Worked example. In a month, billing identifies 60 unapplied receipts, but only 50 have reached their investigation deadline. Of those 50, 45 have documented matching checks and a next step or disposition by the deadline, and 5 do not.
- Coverage = 45 / 50 x 100 = 90%.
- The 10 receipts not yet due are left out of the denominator but stay visible in the queue.
- The 5 uncovered receipts total $18,000, so they should be reported beside the rate; a 90% score hides the fact that $18,000 of customer money has had no documented checks.Case study
Seen in the real world.
This fictional case follows Westbrook Billing, an invented company. Several customer transfers arrived without invoice numbers, leaving those customers marked overdue while their money sat in an unapplied account. The team checked bank references, asked customers for narrow remittance detail and posted the amounts correctly, while pausing inaccurate collection messages on the affected invoices.
Each investigation was logged with an owner and a deadline so cases could not drift. Coverage rose from a patchy record to a steady figure, and the team added the unresolved amount to its weekly report. The case is invented and illustrates a process only.
Watch out
Common mistakes.
- 1. Calling an in-review status a completed investigation without checks.
- 2. Applying money to an equal-value invoice without confirming the payer.
- 3. Ignoring the customer impact of a long-open unapplied receipt.
Questions
People also ask.
Is investigation the same as allocation?
No. Track final posting or return separately.
What if the payer cannot be identified?
Keep the receipt controlled and follow the approved finance process.
Should tiny receipts be ignored?
Use proportionate review, but keep all customer funds accounted for.
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