What is expense reconciliation?
Expense reconciliation is checking that every charge has proof and the right code before the books close. This cheat sheet covers how to think about it, a daily reconciliation pass and the exceptions to log. The detail is further down.
How to think about it
- Match, code, clear. Confirm every charge, code it to the right project and clear any mismatch before the month ends.
- Timing gaps are normal. Cards sometimes post a day late, and a hotel can bill on the 1st for a stay that ended on the 31st.
- Small and often beats month-end. Some companies review, code and match every charge within one business day. It isn't a universal standard, but it keeps month-end small.
- Codes go on at booking. When the project code is a required field at booking, the charge arrives already coded.
A daily reconciliation pass
- Pull yesterday's spendStart each morning with fresh data from the day before.
- Match by project codePair each charge with its receipt, invoice or folio, starting with the project code.
- Check timingAllow for charges that post a day or more late, and assign them to the right month.
- Flag what doesn't line upLog each exception and ask travelers for missing receipts while the trip is fresh.
Exceptions to log
- Date mismatch. Note the timing difference and assign the charge to the correct month.
- Missing receipt. Send a follow-up request to the traveler.
- Duplicate charge. Flag it for investigation and resolution.
- Out-of-policy expense. Route it to a manager for approval or adjustment.
How it works on Engine
With Engine Direct Bill, Engine pays eligible hotels and bills the company in arrears on one consolidated invoice, and booking data and company cost fields carry through to that invoice for reconciliation. Engine's accounting integrations sync invoices, refunds and vendor bills to QuickBooks Online, NetSuite and Sage Intacct, and each synced transaction can be traced back to its source in Engine.
Questions
What is credit card reconciliation?
Taking each line on the card statement and matching it to proof, such as receipts, invoices or job records, so the numbers in the general ledger stay accurate.
What documents count as proof when reconciling expenses?
The IRS lists canceled checks or other proof of payment, cash register tape receipts, account statements, credit card receipts and statements, and invoices. A combination may be needed to support every element of an expense.
How often should you reconcile expenses?
Some companies review and match every charge within one business day. Engine's reconciliation guide recommends a short daily pass, because waiting for month-end lets mismatched dates and lost receipts pile up.
What if a receipt is missing during reconciliation?
Ask the traveler for a card statement or bank record showing the charge, with a short note explaining the missing receipt.
Sources
- Engine, Credit Card Reconciliation: 7 Steps to End Receipt Chaos, accessed November 2, 2026.
- Engine, Travel Expense Reconciliation: A Step-by-Step Guide, accessed November 2, 2026.
- Engine, Travel Expense Reporting: A Complete Guide, accessed November 2, 2026.
- Internal Revenue Service, What kind of records should I keep, accessed November 2, 2026.
- Engine, Direct Bill for Company Hotel Travel, accessed November 2, 2026.
- Engine, Accounting Integrations, accessed November 2, 2026.