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 right now through a Live Chat session, we are available to provide you with answers, or get you in touch with those who can.

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

General Information
Monday-Friday 8am-6pm, Saturday 8am-1pm
E-Mail: SupportCenter@oldsecond.com
Phone: 877-866-0202

InfoLine (Free 24-Hour Automated Account Information)
Phone: 630-892-6565 | Toll Free: 888-892-6565

O2 Online Banking
E-Mail: onlinebanking@oldsecond.com
Phone: 630-844-4826

O2 eStatements
E-Mail: eStatements@oldsecond.com
Phone: 630-844-4826

O2 Mobile, Text, & Mobile Deposit
E-Mail: depositservices@oldsecond.com
Phone: 630-966-2455

To report your ATM/Debit Card lost or stolen, 24 hours a day.
Toll Free: 800-754-4128

Contact Us