Be certain that all deposits have been credited to your account, especially if you have more than one type of account with the same financial institution.
Were those transactions recorded on the checkbook register? Are there any double entries?
If there is another person on the same checking account? a spouse or a child? ask him or her for information on all transactions he or she may have made on the account.
If it has been cashed, review your monthly statement to confirm that it was deducted from your account. Has the individual/business lost or forgotten the check? Encourage them to cash it as soon as possible. If you have checks that have been outstanding for three or more months, contact the person or business the checks were written to and ask for the current status of the check. Pay with cash only, or use cash to purchase money orders to pay bills. In other words, stop using your checkbook.
Allow all outstanding checks to clear before writing any more checks.
Concentrate only on the accuracy of the entries and the math associated with them. Did you write a check for $54 but entered it in the checkbook register as $45? Did you subtract that $100 deposit instead of adding it? Do not look for outstanding checks or missed deposits. Work your way through each transaction to see if you recorded it accurately and did the appropriate subtraction or addition correctly.
Check the accuracy of your entries and the basic math in your checkbook register.
By following the form provided, you are more likely to notice either deposits or withdrawals you previously overlooked and to find errors. Add this to the number you arrived at after subtracting the outstanding checks. Subtract this total from the ending balance your bank/credit union is showing. Total all outstanding checks (the ones not found on the statement yet). The forms vary, but the basic steps are checking off checks, ATM withdrawals, automatic deposits and withdrawals, and other deposits that have cleared on your statement. Simply subtracting or adding each entry in your checkbook entry does not allow for outstanding checks or deposits.
Even if you have done so before, try balancing your checkbook using the form provided by your financial institution.
If you have tried balancing your checkbook but can find no agreement between the last number in your check register and the ending balance your financial institution has stated is in your account, you do have some alternatives: Balancing or reconciling a checkbook each month is a task many of us avoid.