Bank Reconciliation (Accounting Guide)
A bank reconciliation compares a bank statement with a company’s cash records for the same date. It explains differences, such as checks that have not cleared or fees not yet recorded. After valid differences are accounted for, both sides should show the same cash balance. The process also helps find errors and unusual transactions, and guides any needed journal entries.
A bank balance and a cash ledger balance often differ, even when both are accurate. That can feel like a mistake, especially when you are learning debits and credits. The key is to sort each difference into the right group: a timing difference, an item missing from the books, or a possible error that needs more research.
I teach students to treat reconciliation as an explanation, not a math trick. You should be able to point to evidence for every adjustment. Never add an unsupported number just to make the balances agree.
Bank Reconciliation Overview: Purpose, Records, and Preparation
A bank reconciliation is a dated comparison between the balance on a bank statement and the cash balance in an organization’s records. It accounts for valid differences until both adjusted balances agree. The process supports accurate cash reporting and serves as an internal control, but it is not a standalone U.S. GAAP standard.
The bank statement reports transactions processed by the bank. The company’s cash ledger, sometimes called the cash book, records cash activity from the company’s point of view. The two records can differ because a payment or deposit may be recorded on different dates.
For example, a company may record a check when it sends it. The bank does not reduce the account until the recipient deposits the check and the bank processes it. That is a timing difference, not automatically an error.
What you need before you begin
Gather records for the same bank account and reconciliation date:
- The current bank statement, including any pages or online transaction details
- The cash ledger for the matching period
- The prior reconciliation
- Deposit records, check details, and electronic payment records
- Relevant notices for fees, interest, returned payments, or other bank activity
Start by confirming the account number and statement ending date. Then compare the opening balance with the prior reconciliation. Review old outstanding items and check whether they cleared during this period.
The basic accounting equation is assets = liabilities + equity. Cash is an asset. A debit increases cash, while a credit decreases it. Those rules matter when you record an item that appears on the bank statement but is missing from the books.
Step-by-step reconciliation process
- Match transactions. Compare deposits, checks, and electronic transactions in the ledger with the bank statement. Mark items found in both records.
- List timing differences. Identify recorded deposits and payments that have not yet cleared the bank.
- Find unrecorded items. Look for statement activity absent from the ledger, such as fees or interest.
- Check unusual differences. Compare amounts, dates, payees, and supporting records. A mismatch may point to a data-entry error or an unfamiliar transaction.
- Calculate both adjusted balances. Apply supported adjustments to the bank side and book side.
- Record needed entries. Journalize items that the company has not yet recorded, and correct confirmed book errors.
- Review and retain. Have someone other than the preparer review the work and evidence, according to the organization’s procedures.
The next step is to classify each difference correctly. That determines whether it changes the reconciliation only or also needs a journal entry.
Reconciliation Components, Book Adjustments, and Worked Example
A reconciling item is a supported difference between the bank statement and the company’s cash records. Bank-side items are often timing differences. Book-side items often arise because the bank processed a transaction before the company recorded it. Each item must be assigned to the correct side and supported by evidence.
Common reconciling items
| Item | Where it usually appears | Treatment |
|---|---|---|
| Deposit in transit | Bank side | Add to the statement balance if already recorded in the books |
| Outstanding check | Bank side | Subtract from the statement balance if already recorded in the books |
| Bank fee | Book side | Subtract from book cash and record an expense |
| Interest earned | Book side | Add to book cash and record interest income |
| Returned customer payment | Book side | Reduce book cash and restore the customer’s receivable, as appropriate |
| Company recording error | Book side | Correct the ledger based on the original transaction and evidence |
| Bank processing error | Bank side, pending investigation | Contact the bank; do not change company records for an error the company did not make |
“Deposit in transit” means the company has recorded a deposit, but the bank has not yet processed it by the statement date. An “outstanding check” is a check recorded by the company that has not yet cleared the bank. Neither normally needs a new journal entry because the company has already recorded the cash transaction.
Worked example: Adjust both sides
Suppose a company’s bank statement shows $12,480. Its cash ledger shows $12,260. The records and statement support these items:
- A $1,750 deposit was recorded by the company but had not reached the statement.
- Checks totaling $2,130 were recorded but had not cleared.
- The bank charged a $35 fee not yet recorded in the ledger.
- The bank credited $25 of interest not yet recorded in the ledger.
- A customer payment of $150 was returned unpaid and is not yet recorded in the ledger.
The adjusted bank balance is:
$12,480 + $1,750 – $2,130 = $12,100
The adjusted book balance is:
$12,260 – $35 + $25 – $150 = $12,100
Both sides now show $12,100. This example is illustrative; in actual work, use the dates, amounts, and supporting records for the account being reconciled.
Journal entries for items missing from the books
The timing differences do not need entries. The book-side items do, because they have not yet been recorded in the company’s ledger.
| Item | Example entry |
|---|---|
| Bank fee of $35 | Debit bank-fee expense $35; credit cash $35 |
| Interest of $25 | Debit cash $25; credit interest income $25 |
| Returned payment of $150 | Debit accounts receivable $150; credit cash $150 |
The returned-payment entry shown assumes the customer still owes the amount. Follow the organization’s accounting policy and chart of accounts when selecting accounts.
For a book error, trace the error to the original entry. For example, if a $480 check was mistakenly recorded as $840, cash was reduced by $360 too much. The correction increases cash by $360 and adjusts the account affected by the original error. Do not guess which account to use; inspect the original transaction.
Once both adjusted balances agree, keep the calculation and evidence together. Agreement is a useful check, but it does not by itself prove that every transaction is valid.
Common Errors, Internal Controls, and Academic Practice
A strong reconciliation identifies and explains differences; it does not hide them. Common problems include missed transactions, reversed digits, duplicate entries, and items carried forward without review. Clear documentation and a second-person review help catch mistakes and unusual activity before the records are used for reporting.
Errors to watch for
- Adding a plug: An unexplained adjustment inserted only to make the totals match is not a valid reconciliation.
- Posting timing differences twice: Do not journalize deposits in transit or outstanding checks if they are already recorded in the company’s books.
- Mixing dates or accounts: A statement and ledger for different periods or bank accounts cannot be reconciled meaningfully.
- Ignoring old items: A check or deposit that stays outstanding should be investigated under the organization’s policy. Do not assume it is still valid.
- Overlooking bank errors: If the bank appears to have processed an item incorrectly, document the issue and contact the bank. Do not change the company’s books to copy a suspected bank error.
A bank reconciliation is part of internal control: a procedure that helps protect assets and improve the reliability of records. It is also a close procedure, meaning it supports the work done to prepare financial reports for a period. U.S. cash reporting is addressed in relevant accounting guidance, including FASB Accounting Standards Codification (ASC) 305. The reconciliation itself is a control and work process, not a standalone GAAP standard.
Review, evidence, and recordkeeping
The preparer should attach or reference evidence such as the bank statement, ledger detail, deposit support, and explanations for unusual items. A reviewer should check the math, confirm that entries have support, and follow up on old or unexplained differences.
When possible, the reviewer should be independent of the preparation and posting work. Having the same person prepare and approve a reconciliation weakens the control, because errors or unauthorized transactions may be less likely to receive a separate check. Retain the completed reconciliation under the organization’s records policy.
In introductory accounting practice, show the bank-side calculation and book-side calculation separately. Then label each item, explain why it belongs on that side, and state whether it needs a journal entry. This method makes your reasoning easier to review and helps you avoid treating reconciliation as guesswork.
Accounting Career Applications and Workplace Reconciliation Skills
Preparing a reconciliation builds skills used in bookkeeping, accounting, and financial operations. The work involves matching records, applying debit-and-credit rules, investigating exceptions, and documenting conclusions. These tasks also help students explain how reported cash relates to bank activity and company records.
In practice, the person preparing a reconciliation may need to ask for missing support, trace an amount to an invoice or payment record, or flag an unfamiliar transaction for review. The exact duties and approval steps vary by organization. Follow the organization’s accounting policies and assigned roles rather than assuming one process fits every workplace.
I often see students focus first on getting the final number to match. A better habit is to explain each difference before doing the final calculation. If you can say what happened, where it belongs, and whether it needs an entry, you are doing more than balancing numbers: you are building a record another person can check.
Key takeaway: Reconcile the same account for the same date, support each difference, record only items missing from the books, and ask for review. If the balances do not agree, keep investigating rather than forcing them to match.
Frequently Asked Questions
These answers cover the main choices students face when preparing a reconciliation: what to compare, how to handle common differences, and when to record an entry. The central rule is to use evidence and the correct date. If a difference remains unexplained, document it and investigate rather than adding an unsupported adjustment.
What is a bank reconciliation?
A bank reconciliation compares a bank statement with the company’s cash ledger for the same date. It explains valid differences and shows the adjusted cash balance.
Why might the bank balance differ from the cash ledger?
The bank may not yet have processed a recorded deposit or check. The statement may also include fees, interest, or returned payments that the company has not recorded.
What is a deposit in transit?
A deposit in transit is a deposit the company recorded by the statement date that the bank had not yet processed. It is usually added to the statement balance.
What is an outstanding check?
An outstanding check is a check the company recorded that has not cleared the bank by the statement date. It is usually subtracted from the statement balance.
Do deposits in transit and outstanding checks need journal entries?
Usually not. If the company has already recorded the deposit or check, the item is a timing difference, not a missing book transaction.
Which bank statement items usually need journal entries?
Items not yet recorded in the company’s books usually need entries. Examples include bank fees, interest earned, and returned customer payments.
What if the two adjusted balances do not agree?
Recheck the dates, account, arithmetic, and matched transactions. Then inspect amounts and supporting records for omissions or errors. Do not add an unsupported amount just to force agreement.
How should a company handle a bank error?
Document the suspected error and contact the bank to investigate it. Do not change the company’s records to reflect an error that the company did not make.
How often should a bank reconciliation be prepared?
Organizations set their own schedules. Many reconcile accounts as part of a regular period close, often monthly, but the required timing depends on the organization’s policy and needs.
Who should review the reconciliation?
Ideally, a person other than the preparer reviews the reconciliation and its support. A separate review can help identify errors, unsupported entries, or unusual transactions.
(This article was written by one of our staff writers, Alan Westbrook. Visit our Meet the Team page.)
