The last step is finding and fixing whatever amount does not match between your records and the bank's

After you have compared your check register or transaction list against your bank statement and added up all the deposits and withdrawals on both sides, you will have two totals. Most of the time they will not be the same number. The final step is to figure out why they differ and correct the problem — either by finding a transaction you missed, adjusting for a pending check or deposit that has not cleared yet, or discovering an actual error on your side or the bank's side.

This step separates people who reconcile their accounts from people who give up halfway through. The difference is usually small and explainable. Finding it takes patience, not math skill.

Key Takeaways

  • The final step is comparing your adjusted balance to the bank's adjusted balance and investigating any difference that remains.
  • Most differences come from checks you wrote that have not cleared yet, deposits you recorded but the bank has not processed, or fees and interest the bank charged that you did not record.
  • If the difference is exactly the amount of one transaction, search your records for that transaction — you likely recorded it twice or missed it entirely.
  • If the difference stays after you account for all pending items, contact the bank with the specific transaction in question and ask them to investigate.

How to calculate your adjusted balance

Before you can find the difference, you need two adjusted balances — one from your records and one from the bank's statement. Start with the ending balance on your bank statement (the number the bank says you have). Add any deposits you made that do not appear on the statement yet. Subtract any checks you wrote that have not cleared. The result is your bank's adjusted balance.

Now start with the balance in your check register or app (the number you think you have). Add any interest or credits the bank paid you that you did not record. Subtract any fees or charges the bank took out that you did not record. The result is your adjusted balance. These two numbers should match. If they do not, the difference is what you are looking for.

Finding the source when balances do not match

Start by checking whether the difference is exactly equal to any single transaction on either statement. If your records are $50 higher than the bank's adjusted balance, search your register for a $50 deposit or withdrawal. You may have recorded it twice, or the bank may not have processed it yet. If you find it in your records but not on the statement, it is still pending — add it to your list of items to account for.

If the difference is not a single transaction, work through your register line by line against the statement. Put a checkmark next to each transaction that appears on both. Anything in your register without a checkmark either has not cleared yet or was never processed. Anything on the statement without a match in your register is either a fee, interest, or a transaction you forgot to record.

Common sources of mismatch: automatic bill payments you set up but forgot to write down, ATM withdrawals that do not appear in your register, bank fees for overdrafts or low balances, interest deposits on savings accounts, and checks that took longer than expected to clear.

When the difference is a rounding or math error

Add up your deposits and withdrawals a second time using a calculator, not by hand. A single digit wrong — writing $125 instead of $152, or $89 instead of $98 — will throw off your entire reconciliation. If you find an error in your arithmetic, correct it in your register and recalculate your adjusted balance.

Check the bank's math too, though errors on their side are rare. Look at each fee or interest charge to make sure the amount matches what the bank says it should be. If a fee seems wrong, note it — you may need to contact them about it.

Correcting errors in your register

If you find a transaction you recorded wrong — the amount was different, or you recorded it on the wrong date — draw a line through the incorrect entry and write the correct one next to it. Do not erase. Your register should show the history of what you thought you had, not just the final answer. If you recorded a transaction twice, cross out the duplicate and note why.

Once you have corrected all the errors you can find in your own records, recalculate your adjusted balance. It should now match the bank's adjusted balance. If it does, reconciliation is complete.

What to do if the difference remains

If your adjusted balance still does not match the bank's adjusted balance after you have accounted for all pending items and corrected your own errors, contact the bank. Have the specific transaction or transactions in question ready — the date, the amount, and whether it is a deposit or withdrawal. The bank can tell you whether the transaction cleared, when it cleared, or whether there was a problem processing it.

Banks can take several business days to investigate a discrepancy. They will usually call or email you with an explanation. If they find an error on their end, they will correct your account. If they find an error on your end, you will need to update your register and recalculate.

Some banks offer a reconciliation tool in their online banking portal that walks you through this process automatically. If you use that tool and it shows a difference, the bank's system has already done the math — the difference is real and needs investigation.

Keeping reconciliation current going forward

The easiest way to avoid large discrepancies is to reconcile every month when your statement arrives, not once a year. A small difference is easier to track down than a large one. If you use online banking or a budgeting app that syncs with your bank, many of these tools flag transactions that do not match your register automatically, which cuts the work in half.

Record every transaction as soon as it happens — not from memory a week later. The closer your record is to the actual event, the easier it is to spot what went wrong if something does not match.

Frequently Asked Questions

What if I find a transaction the bank charged me for that I did not authorize?

Contact the bank immediately with the transaction details. Unauthorized charges and fraudulent transactions have different timelines and protections depending on whether it was a debit card, check, or ACH transfer. The bank will investigate and may reverse the charge while they look into it. Do not wait until next month's statement to report it.

Can I reconcile my account if I do not have all my receipts?

Yes. Your bank statement is the official record. Compare what the bank shows against what you recorded in your register. If a transaction appears on the statement but you have no receipt, you can still verify it happened by checking your memory or asking the merchant. Receipts are useful for your own records but not required to reconcile.

How long should I wait before I assume a check will not clear?

Most checks clear within three to five business days. If a check has been outstanding for more than two weeks, contact the recipient to confirm they received it. If they did not, you may need to stop payment on the check and issue a new one. Until then, keep it in your list of pending items.

What if the bank and I disagree about when a deposit cleared?

The bank's record is the official one. If you deposited a check on Monday but the bank did not process it until Wednesday, the bank's date is correct for reconciliation purposes. Your register can show when you made the deposit, but for matching purposes, use the date the bank shows.

Do I need to reconcile if I use a budgeting app that tracks my account?

Apps that sync directly with your bank are usually accurate, but reconciling once a month is still worth doing. It catches errors the app might miss, unauthorized charges, and fees you did not expect. It takes 10 to 15 minutes and gives you confidence that the number you see is correct.