Bank Reconciliation: Definition, Steps, and Example

Bank reconciliation is the process of comparing the cash activity and ending balance in a business's accounting records with the activity and ending balance on its bank statement for the same period. Every difference should be matched, explained as a valid timing item, or corrected in the books.

The goal is not merely to make a software screen show zero. The goal is to establish that recorded cash activity is complete, accurate, and connected to the correct bank account and period.

Why the balances can differ

The bank and the books record activity from different perspectives and sometimes at different times. Common valid timing differences include:

• Outstanding checks recorded in the books but not yet cleared by the bank
• Deposits in transit recorded in the books but posted by the bank after statement end
• Electronic payments initiated near month-end but processed later

Other differences require the books to be updated or corrected:

• Bank fees or interest not yet recorded
• Returned customer payments
• Merchant-processing withdrawals
• Incorrect transaction amounts
• Duplicate or missing entries
• Transfers posted to only one account
• Unauthorized transactions

A reconciling item should have a specific explanation. "Difference" is not an account category.

Bank reconciliation steps

1. Obtain the complete bank statement and identify the statement ending date and ending balance.
2. Confirm that the accounting account represents the same bank account.
3. Match deposits, checks, electronic withdrawals, transfers, fees, interest, and other statement items to the books.
4. Record legitimate bank activity missing from the books.
5. Correct duplicates, wrong amounts, or wrong-account entries with an audit trail.
6. Identify outstanding checks and deposits in transit.
7. Investigate stale or unusual outstanding items.
8. Confirm that the adjusted bank balance equals the adjusted book balance.
9. Save the reconciliation report, statement, and supporting notes.
10. Have an appropriate reviewer examine unusual items when staffing permits.

High-volume businesses may review activity daily, but a full reconciliation is commonly completed for every statement period.

Bank reconciliation example

The consulting business's June bank statement ends at $19,225. Its books initially show $18,700.

The review finds:

• A $600 outstanding check already recorded in the books
• A $75 bank charge on the statement but missing from the books
• A $2,000 customer deposit already recorded from an invoice, then duplicated when the bank-feed item was added — the duplicate is identified and removed before the $18,700 starting book balance used here

After recording the $75 fee, the adjusted book balance is:

$18,700 − $75 = $18,625

The adjusted bank balance is:

$19,225 − $600 outstanding check = $18,625

The balances now agree. Reconciliation arithmetic must follow documented corrections and actual statement activity, not a desired result.

Bank reconciliation vs. bank-feed matching

A bank feed imports or displays institution activity. Matching links an imported item to an existing book transaction. Categorizing assigns an imported item to an account. Reconciliation compares the complete period and ending balance to a statement.

A feed can save time, but it can also create duplicates. A customer payment may already be recorded through accounts receivable. A transfer appears in two financial accounts. A credit card payment is not a new expense. Each imported item needs context.

What reconciliation proves — and does not prove

A completed reconciliation provides evidence that the recorded cash balance agrees with the bank after identified timing items. It can expose missing, duplicate, altered, or unauthorized activity.

It does not prove that every expense has a valid business purpose, receipt, or tax deduction. It also does not prove that a payment was posted to the correct expense, asset, liability, or owner account. Those questions require documents and ledger review.

Federal and California tax connection

Bank reconciliations are generally not attached to federal or California income tax returns. They help establish reliable books that support the income, deductions, credits, assets, and liabilities reported.

The IRS says businesses may choose a recordkeeping system suited to their operations if it clearly shows income and expenses. Bank statements are supporting records, but transaction descriptions alone may not establish business purpose. California FTB guidance similarly emphasizes records that identify revenue, categorize expenses, prepare financial statements, and document transactions during an audit.

Reconciliation can also help identify gross receipts that were omitted, owner deposits that should not be revenue, loan proceeds, deductible fees, fixed-asset purchases, and payments requiring information-return review.

Common mistakes

• Reconciling to an online current balance instead of the statement ending balance
• Entering an unexplained adjustment to reach zero
• Deleting or changing previously reconciled transactions without review
• Treating transfers and credit card payments as expenses
• Adding bank-feed transactions that already exist
• Ignoring old outstanding checks or deposits
• Reconciling multiple bank accounts in one ledger account
• Assuming the bank description supplies adequate tax documentation
• Failing to save the completed report and statement

Frequently asked questions

Related terms

• Bank Feed
• Reconciliation Discrepancy
• Credit Card Reconciliation
• General Ledger
• Trial Balance

Official sources

• IRS — Recordkeeping
• IRS — What kind of records should I keep?
• IRS — Publication 583, Starting a Business and Keeping Records
• California FTB — Keeping your tax records
• Washington State Auditor — Bank reconciliations and internal control

The definitions and examples on this page are for informational purposes only and do not constitute tax advice. Tax laws change frequently and individual circumstances vary. Consult a qualified tax professional before making decisions based on this content.