Bank Statement

A bank statement is the record a bank issues, typically monthly, showing all the activity that occurred in a company's checking account during that period: deposits received, checks the bank has paid, electronic transfers, service charges, and the resulting balance at the start and end of the statement period. It is the bank's own version of the account's history, independent of whatever the company's own accounting records show.

A company's general ledger Cash account and the bank's statement rarely show exactly the same balance on any given day, not because either is wrong, but because of normal timing differences. Checks the company has written and recorded may not yet have been presented to the bank for payment; deposits the company has recorded may not yet have been processed and posted by the bank. Bank fees and interest earned are often deducted or added by the bank before the company even learns about them.

Reconciling these two records is the purpose of a bank reconciliation, which starts from the bank statement's ending balance, adjusts for items the company already knows about but the bank has not yet processed, such as outstanding checks and deposits in transit, and arrives at an adjusted balance that should match the company's own books after accounting for items the company did not yet know about, such as bank fees or an unexpected NSF check from a customer.

Beyond the basic deposit and withdrawal activity, a bank statement usually itemizes any service charges, interest earned on the account if applicable, images or references for checks the bank has paid, and any returned or bounced items. Larger companies with significant transaction volume often receive statements in a structured electronic format that can be imported directly into accounting software, automating much of the matching process that would otherwise require a bookkeeper to compare line by line.

Because a bank statement comes from an independent source outside the company's own accounting system, regularly comparing it against the company's own records is one of the most basic and effective internal controls a business can maintain, helping catch recording errors, bank errors, and in some cases outright theft or fraud involving the company's cash, long before those problems would otherwise surface through any other part of the accounting process.

A company's books might show a $25,000 ending cash balance while its bank statement shows $24,400. The $600 gap could reflect $50 in bank fees the company had not yet recorded, combined with a $650 check the company wrote that had not yet cleared the bank — exactly the kind of timing differences a bank reconciliation is built to identify and explain.

A standard bank statement lists the beginning balance for the period, every deposit and credit received, every check, withdrawal, transfer, and bank-initiated debit such as a service charge, and the ending balance as of the statement date. Many statements also include images or descriptions of individual cleared checks and a running daily balance, which businesses with tight cash positions monitor closely to catch an unexpected shortfall before it causes a check to bounce. Most companies today receive and reconcile bank statements electronically on a continuous basis rather than waiting for a single monthly paper statement, though the underlying reconciliation logic is unchanged either way.