Contact Us

Have questions? Just need to talk?

We're here for you—that's the beauty of a community bank. Whether your preference is to communicate in-person, on the phone, online, or even through a Live Chat session, we are available to provide you with answers, or get you in touch with those who can.

DIRECT CONTACTS

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

General Information

Monday-Friday 8am-6pm (with extended hours* 6pm-11pm)
Saturday 8am-1pm (with extended hours* 1pm-5pm and Sunday 9am-5pm)
Email: SupportCenter@oldsecond.com
Phone: 877-866-0202
*Extended hours provides limited support for account inquires and product information.

Apply for a Home Equity

833-530-LOAN (5626)

InfoLine (Free 24-Hour Automated Account Information)

Toll Free: 888-892-6565

O2 Online Banking

Email: onlinebanking@oldsecond.com
Phone: 630-844-4826

O2 eStatements

Email: eStatements@oldsecond.com
Phone: 630-844-4826

O2 Mobile, Text, & Mobile Deposit

Email: depositservices@oldsecond.com
Phone: 630-966-2455

To activate your ATM/Debit Card, 24 hours a day

Toll Free: 866-633-5293

To report your ATM/Debit Card lost or stolen, 24 hours a day

Toll Free: 800-500-1044

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

CONTACT US

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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