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How to investigate an uncategorized bank transaction without guessing
Use a short evidence checklist to resolve unclear bank transactions without forcing them into a convenient expense category.
Applies to: General bookkeeping workflow for U.S. and Canadian businesses; software-neutral. Examples are hypothetical and do not determine tax deductibility.
An unfamiliar description on a bank statement is a question to investigate. It is not enough information to decide whether the item is an expense, transfer, customer receipt or owner transaction. A useful review preserves that uncertainty until someone supplies evidence.
Start with the evidence
The IRS describes records as support for business income, expenses and financial statements. The checklist below is an original operating process for connecting a bank entry to that evidence; it is not an IRS-prescribed categorization method. IRS recordkeeping guidance.
A practical review checklist
- Capture the bank date, amount, currency and transaction reference in a restricted review log. Avoid copying full account numbers into a shared task list.
- Search existing bills, receipts, reimbursements and transfers before creating another entry. A merchant trading name may differ from the supplier name.
- Ask the responsible person one precise question: what was purchased or moved, for which business purpose, and where is the supporting record?
- Record who will resolve the item and a review date. Follow the accountant-approved treatment for unresolved items at close.
- When evidence arrives, link it to the original transaction and have the classification reviewed. Check that a later import has not created a duplicate.
A worked review example
Imagine a $286 bank debit labeled only with a payment-service reference. A teammate remembers buying supplies, but the receipt shows that $250 was a refundable deposit and $36 was a delivery charge. The reviewer records both facts and asks the accountant how each component should be treated. Posting the entire debit to office supplies would have hidden the question. This example illustrates investigation, not a required journal entry.
For help organizing the underlying records, see our bookkeeping and accounting services. Keep confidential documents in your agreed secure document channel.
Questions about this workflow
Can I classify an entry from its amount alone?
No. Use the amount to find possible matches, then compare references, dates and underlying documents.
Should I delete an unexplained bank entry?
Preserve the transaction and document the unresolved question. Follow the approved reconciliation process rather than removing real cash activity.
What makes an exception ready to close?
A clear business explanation, linked supporting evidence, an approved classification and a reviewer recorded against the item.
Prepared by The Solution Bridge. Sources checked 2026-10-03. Educational guidance; verify current product instructions and applicable requirements.
Useful answers
Bookkeeping FAQs
What should I prepare before a bookkeeping review?
Start with the period, bank and card statements, sales and purchase records, and a list of unresolved transactions. Agree a secure document-sharing method before sending files.
Should I guess a category for an unclear transaction?
Keep it on an exception list with its date, amount and question. Ask the responsible person for supporting evidence before approving the final treatment.
Can bookkeeping support include catch-up work?
Catch-up work can be discussed separately. The period, missing documents, software access and review responsibilities determine the scope.
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