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For more information about how Old Second can help you, please contact us.

Monday-Friday 8am-5pm (with extended hours* 5pm-11pm)
Saturday 8am-1pm (with extended hours* 1pm-5pm and Sunday 9am-5pm)
Phone: 877-866-0202
*Extended hours provides limited support for account inquires and product information.
833-530-LOAN (5626)
Toll Free: 888-297-3416
Outside U.S.: 206-389-5200

Notice of Errors and Requests for Information concerning your mortgage loan:
If you think there is an error with respect to your mortgage loan, or you need additional information about your mortgage loan, write to us at the address below.  Do not include your letter with your mortgage payment. Be sure to include the following information on your letter: your name and loan number, telephone number, and a description of the suspected error or documentation or information you are requesting regarding your loan.

Old Second National Bank
Attention: Loan Servicing 1st Floor NOE
37 S River St.
Aurora, IL 60506-4172


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.


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