# Bank Reconciliation Methods Compared, With One Example

- Author: PreciseBankFlow (https://www.precisebankflow.com)
- Published: 2026-08-23
- Updated: 2026-08-23
- Category: Bank reconciliation
- Canonical: https://www.precisebankflow.com/blog/bank-reconciliation-methods

> The bank reconciliation methods compared: adjusted balance, book to bank and bank to book, what each proves, and which one auditors and examiners expect.
There are three common bank reconciliation methods. The adjusted balance method corrects the bank figure and the book figure separately until both reach true cash. The book to bank method starts from the ledger and works toward the statement, and bank to book does the reverse. All three use the same items; only the adjusted balance method shows corrected cash.

## What does each bank reconciliation method prove?

Each bank reconciliation method proves that the gap between the statement and the ledger is fully explained. The difference is what else it produces. The adjusted balance method also gives you the true cash figure for the balance sheet. The two one-sided methods prove the gap but leave you to work out corrected cash yourself.

| Method | Starts from | Ends at | Produces corrected cash? | Typical use |
| --- | --- | --- | --- | --- |
| Adjusted balance | Both balances, separately | Two equal adjusted balances | Yes, stated on both sides | Monthly close, review files |
| Book to bank | Balance per books | Balance per bank statement | No | Teaching, quick checks |
| Bank to book | Balance per bank statement | Balance per books | No | Teaching, quick checks |

The items are identical in every method: deposits in transit, outstanding checks, fees, interest, returned checks and errors. What changes is the sign each item takes, because in the one-sided methods every item is applied to a single running figure.

A separate audit technique, the proof of cash, extends the adjusted balance layout to receipts and disbursements for the period, not just the closing balance. [The proof of cash four-column reconciliation](/blog/proof-of-cash) covers when it is worth the extra work.

## One month under the adjusted balance reconciliation method

The adjusted balance method lays the bank side and the book side next to each other. Timing items correct the bank figure. Items the ledger has not recorded correct the book figure. The reconciliation is finished when both corrected figures are equal. The figures below are an invented example month.

| Bank side | Amount | Book side | Amount |
| --- | ---: | --- | ---: |
| Balance per statement | 9,870.00 | Balance per books | 9,222.00 |
| Add: deposit in transit | 1,450.00 | Add: interest credited | 3.00 |
| Less: outstanding checks | (2,115.00) | Less: service fee | (20.00) |
| Adjusted bank balance | 9,205.00 | Adjusted book balance | 9,205.00 |

Bank side: 9,870.00 plus 1,450.00 is 11,320.00, less 2,115.00 is 9,205.00. Book side: 9,222.00 plus 3.00 is 9,225.00, less 20.00 is 9,205.00. Both reach 9,205.00, and that is the cash figure that should appear on the balance sheet once the two book-side entries are posted.

A reader can see at a glance which items need a journal entry: everything on the book side. Nothing on the bank side does.

## The same month as book to bank and bank to book reconciliations

The book to bank method starts at 9,222.00 and reverses each item's effect until it reaches the statement's 9,870.00. Bank to book starts at 9,870.00 and reaches 9,222.00. Every item from the example appears in both, with opposite signs from one method to the other.

| Book to bank | Amount | Bank to book | Amount |
| --- | ---: | --- | ---: |
| Balance per books | 9,222.00 | Balance per statement | 9,870.00 |
| Add: outstanding checks | 2,115.00 | Add: deposit in transit | 1,450.00 |
| Less: deposit in transit | (1,450.00) | Less: outstanding checks | (2,115.00) |
| Add: interest credited | 3.00 | Less: interest credited | (3.00) |
| Less: service fee | (20.00) | Add: service fee | 20.00 |
| Balance per bank statement | 9,870.00 | Balance per books | 9,222.00 |

The arithmetic for book to bank: 9,222.00 plus 2,115.00 is 11,337.00, less 1,450.00 is 9,887.00, plus 3.00 is 9,890.00, less 20.00 is 9,870.00. Bank to book runs the same steps in reverse and lands on 9,222.00.

Both prove the gap of 648.00 is explained. Neither prints 9,205.00, the corrected cash balance, anywhere. The signs also trip people up: an outstanding check is added in one direction and subtracted in the other, which is where most errors in these layouts come from.

The method does not depend on the statement ending at month-end. When the bank cycle closes on the 15th, the same items apply, but the timing items change; [reconciling a bank statement that ends mid-month](/blog/reconcile-a-bank-statement-that-ends-mid-month) shows how to bridge the cycle date and the ledger date.

## Which bank reconciliation method do auditors and examiners expect?

Reviewers generally look for the adjusted balance method, because it states the corrected cash balance and separates items needing entries from items that only need time. An auditor testing cash wants a figure to agree to the balance sheet and a clear list of what the ledger still lacks. The one-sided methods give neither directly.

The adjusted balance layout also makes old items easier to spot. When the outstanding checks list sits in its own block on the bank side, a check from eight months ago stands out, and that is the point at which [uncashed checks may become unclaimed property](/blog/uncashed-checks-unclaimed-property) the business must report.

No method is wrong if it is arithmetically correct and documented. A small business owner checking a personal-style account can use book to bank and lose nothing. For a client file, a review or an audit, two equal adjusted balances with preparer and reviewer sign-off are the safer default. If you build reconciliations in a spreadsheet, [how to do bank reconciliation in Excel with formulas](/blog/how-to-do-bank-reconciliation-in-excel) shows the matching that feeds either layout.

## When a one-sided reconciliation method hides an error

A one-sided method can agree while the ledger is still wrong. The book to bank layout ends at the statement balance, so a reconciliation that ties feels finished even if nobody posted the book-side entries. Next month the same fee and interest reappear as unexplained items, now a month old.

Offsetting errors are the deeper risk, and no balance-only method catches them. If a 400.00 customer receipt is never recorded and a 400.00 payment is also never recorded, the closing balances still agree under any of the three methods. A test of the period's receipts and payments, such as the proof of cash, or a line-by-line match of the statement to the ledger, shows the two missing entries, because both lines sit on the statement with nothing in the ledger to pair with. That is why receipts controls matter beyond the reconciliation; [cash receipts internal controls](/blog/cash-receipts-internal-controls) covers the checks that catch money that never reaches the ledger.

Whichever method you use, matching statement lines one by one is what finds these errors. [PreciseBankFlow](/) does that matching and lists every unmatched line, so the reconciliation starts from what did not clear rather than from two totals.