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Old Second National Bank is committed to protecting your privacy and ensuring your private information is secure. For your protection, do not send sensitive information such as account numbers, Social Security numbers or private information through email.

Balance Your Checkbook

Balancing a checkbook is easy. Start with the balance from your last checking account statement. Then subtract all checks that you've written that were not listed in this last statement, or any previous ones. Then add back all the deposits that you've made into your checking account. The result should be the amount you have in your checkbook as your current balance.