Contact
(574) 235-2000 
Specific Contact Information
Our Customer Service Center hours are longer to make your banking more convenient:
- Monday – Friday: 8:30am – 6:00pm ET
- Saturday: 9:00am – 1:00pm ET
Or call InfoSource automated 24/7 telephone banking
- (574) 235-2557
- (800) 235-2557
Lost or stolen ATM or debit card after hours?
You can report a lost or stolen Resource® ATM card or Resource Plus® debit card during non-business hours by calling:
- In the United States: (833) 414-0544
- International callers should call collect: (973) 682-2652
Lost or stolen credit card?
You can report a lost or stolen 1st Source Visa™ Credit Card to:
- Personal credit cards: (800) 558-3424
- Business credit cards: (866) 552-8855
To speak with someone directly: (800) 513-2360
Mailing Address
1st Source Bank
Attn: Consumer Loan Department
P.O. Box 4055
South Bend, IN 46634-4055
To speak with someone about a new mortgage: 574-236-4561
A current mortgage: 800-621-8329
Mailing Address:
1st Source Bank
Attn: Mortgage Loan Department
100 N. Michigan Street, Suite 800
South Bend, IN 46601
Loan
(800) 513-2360
1st Source Bank Consumer Loan Dept.
P.O. Box 4055
South Bend, IN 46634-4055
Mortgage
(800) 621-8329
1st Source Bank Mortgage Loan Dept.
100 N. Michigan Street, Suite 800
South Bend, IN 46601