Here you will find new and updated Old Second Bank promotions, bonuses and offers.

Update 6/13/25: The $300 checking & savings bonus has a new expiration date of 9/30/25.

Table of Contents

About Old Second Bank Promotions

Established in 1887 and headquartered in Aurora, Illinois, Old Second Bank has over 20 locations in the state.

I’ll review the Old Second Bank Promotions below.

Old Second Bank $300 Checking Savings Bonus

The current Old Second Bank promotion is a $300 bonus when you open a new qualifying checking and savings account and complete certain requirements.

What you’ll get: $300 bonus
Account Type: Personal Checking Account and Money Builder Savings account
Availability: IL (Bank Locator)
Direct Deposit Requirement: Yes, complete 2 or more direct deposits totaling $500 or more (see what works)
Credit Inquiry: Soft Pull
ChexSystem: Unknown
Credit Card Funding: None
Monthly fees: None, O2 Checking Account has no monthly fees when you opt for eStatements only (no paper statements).
Early Account Termination Fee: $25 if closed within 90 days
Household limit: One

$300 Bonus at Old Second Bank

(Expires 09/30/2025)

You can compare this to several great entry level checking account offers:
BMO Smart Money Checking ($400 cash bonus*)	BMO Smart Advantage Checking ($400 cash bonus*)
Bank of America ($300 bonus offer)	Chase Total Checking^® ($300 bonus)
KeyBank Key Smart Checking ($300 bonus)	SoFi Checking and Savings ($325 bonus)

How To Earn Bonus

HOW TO EARN BONUSFINE PRINT

Get $50 when you – Open a new checking account online with promo code PK2 (or open in-branch and mention this ad), get and activate a debit card, and enroll in eStatements.
Get $100 when you meet the previous requirements and complete 2 or more direct deposits totaling $500 or more
Get another $150 when you meet the requirements for the first $50 bonus and open a Money Builder Savings account.

An account is not eligible to receive a cash bonus under this offer if 1) the primary account holder currently has an existing personal checking account (Basic Checking, Convenience Checking, Interest Checking, Interest Plus Checking, Military Checking, Minimum Balance Checking, Premier Checking, O2 Checking, Premier Plus Checking, Convenience Plus Checking, Employee N.O.W. and Prime Time Checking (“existing personal checking account”) at Old Second National Bank, 2) has had an existing personal checking account open in the 12 months prior to the date of account opening, or 3) the primary account holder has received a personal checking account-related bonus in the twenty-four months prior to the date of account opening.
The bonuses described in this ad are limited per primary account holder, regardless of the number of accounts opened. The new “personal checking account” (O2 Checking, Premier Plus Checking, Convenience Plus Checking, Military Checking, Employee N.O.W. and Prime Time Checking) must be opened during the promotion period with the code, must have a positive balance ($.01 or greater), an active debit card for the primary owner, and e-statements on the 90th calendar day from the date the new personal checking account was opened in accordance with the bank’s procedures.
Offers are only available on personal checking accounts and the Money Builder Savings; business accounts, trust accounts with EINs, Health Savings Accounts, and estate accounts are excluded from this offer.

How to Waive Monthly Fees

O2 Checking: No monthly fees
Premier Plus Checking: $17.00 monthly, can be waived when you:
- Maintain an average daily balance of $5,000 during the statement cycle OR
- The primary owner on this account maintains a total average deposit balance of $20,000 or more in your combined deposit and time accounts during the statement cycle
- Are 65+ in age, this account service charge will be waived
Convenience Plus Checking: $5.95 monthly, can be waived when you:
- Maintains an average daily balance of $1,000 during the statement cycle, OR
- The primary owner on this account maintains a total average deposit balance of $5,000 or more in your combined deposit and time accounts with us during the statement cycle
- Have a Direct Deposit to this account during the statement cycle
- Are 65+ in age, this account service charge will be waived
Prime Time Checking: No monthly fees
Regular Savings: $5.00 monthly can be waived when you have a minimum balance of at least $200
O2 Money Builder Savings: $15.00 monthly can be waived when you maintain a $1,000 daily balance

Bottom Line

All in all, this promotion from Old Second Bank is pretty generous, so I recommend checking it out before it expires. Furthermore, this promotion is great because it triggers a soft pull, which means it won’t harm your credit score.

If you’re not an Illinois resident and are interested in different banking experience, you can see all nationwide bank bonuses for more suitable offers.

Old Second Bank doesn’t have great rates for CDs and Savings. You may want to check out our full list of Bank Rates and CD Rates.

Compare Old Second Bank Promotions with other bank bonuses from banks like Citi, Huntington, HSBC, Chase, TD, Discover Bank, Aspiration, Axos Bank, PNC Bank, BMO, SoFi, Fifth Third Bank, Bank of America, Wells Fargo, US Bank, and more!