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Employee Benefit Plans | 12 Months Ended
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Dec. 31, 2022
Employee Benefit Plans |
Employee Benefit Plans | Note 22: Employee Benefit Plans ​ Old Second Bancorp, Inc. Employees 401(k) Savings Plan and Trust The Company sponsors a qualified, tax-exempt defined contribution plan (the “401(k) Plan”) qualifying under section 401(k) of the Internal Revenue Code. Virtually all employees are eligible to participate after meeting certain age and service requirements. Eligible employees are permitted to contribute up to a dollar limit set by law of their compensation to the 401(k) Plan. For the years ended December 31, 2022, 2021 and 2020, a discretionary match equal to 100% of the first 3% and 50% of the next 2% was made to participants of the 401(k) Plan. Participants are 100% vested in the discretionary matching contributions. Participants can choose between several different investment options under the 401(k) Plan, including shares of the Company’s common stock. An additional component of the 401(k) Plan arrangement allows the Company to make annual discretionary profit sharing contributions based on the Company’s profitability in a given year, and on each participant’s annual compensation. The Company elected not to make a discretionary profit sharing contribution for the years end December 31, 2022, 2021 and 2020. ​ The total expense relating to the 401(k) Plan was approximately $2.0 million in 2022, $1.4 million in 2021 and $1.2 million in 2020. ​ Old Second Bancorp, Inc. Voluntary Deferred Compensation Plan for Executives and Directors ​ The Company sponsors a deferred compensation plan, which is a means by which certain executives and directors may voluntarily defer a portion of their salary, bonus and directors fees, as applicable. This plan is an unfunded, nonqualified deferred compensation arrangement. Company obligations under this arrangement as of December 31, 2022, 2021 and 2020 are included in other liabilities.

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