Junior Subordinated Debentures	12 Months Ended
Dec. 31, 2021
Junior Subordinated Debentures.
Junior Subordinated Debentures	Note 10: Junior Subordinated Debentures On March 2, 2020, the Company redeemed 7.80% cumulative trust preferred securities issued by Old Second Capital Trust I (“OSBCP”) and related debentures, which totaled $32.6 million. These debentures were originally issued in 2003 for a term of 30 years at 7.80%, and subject to regulatory approval, were able to be called in whole or in part by the Company after June 30, 2008. The Company received regulatory approval to redeem the debentures in early 2020, and notified OSBCP stockholders of the redemption in late January 2020. Cash disbursed for the redemption, including accrued interest on the debentures, totaled $33.0 million, or $10.13 per OSBCP share. The OSBCP redemption was funded by cash on hand and the $20.0 million term note discussed in Note 9 – Borrowings. Upon redemption of the junior subordinated debentures related to OSBCP in March 2020, the Company recognized the remaining unamortized debt issuance costs of $635,000. The Company sold $25.0 million of cumulative trust preferred securities through a private placement completed by an additional, unconsolidated subsidiary, Old Second Capital Trust II, in April 2007. These trust preferred securities also mature in 30 years, but subject to regulatory approval, can be called in whole or in part on a quarterly basis commencing June 15, 2017. The quarterly cash distributions on the securities were fixed at 6.77% through June 15, 2017, and float at 150 basis points over three-month LIBOR thereafter. Upon conversion to a floating rate on June 16, 2017, a cash flow hedge was initiated, whereby the Company swapped the three-month LIBOR for a fixed rate of 2.8%. Accordingly, the effective rate of the instrument was 4.4% as of December 31, 2021 and 2020. The Company issued a new $25.8 million subordinated debenture to the Old Second Capital Trust II in return for the aggregate net proceeds of this trust preferred offering. The interest rate and payment frequency on the debenture are equivalent to the cash distribution basis on the trust preferred securities. The Trust I and Trust II the debentures issued by the Company are disclosed on the Consolidated Balance Sheets as junior subordinated debentures and the related interest expense for each issuance is included in the Consolidated Statements of Income. As of December 31, 2021 and 2020, unamortized debt issuance costs related to the junior subordinated debentures were $1,000 respectively, and are included as a reduction to the balance of the junior subordinated debentures on the Consolidated Balance Sheets. Under the terms of the subordinated debenture issued to Old Second Capital Trust II, the Company is allowed to defer payments of interest for 20 quarterly periods without default or penalty, but such amounts continue to accrue. Also during a deferral period, the Company generally may not pay cash dividends on or repurchase its common stock or preferred stock. As of December 31, 2021, the Company is current on the payments due on these securities.

Junior Subordinated Debentures

12 Months Ended

Dec. 31, 2021

Note 10: Junior Subordinated Debentures

On March 2, 2020, the Company redeemed 7.80% cumulative trust preferred securities issued by Old Second Capital Trust I (“OSBCP”) and related debentures, which totaled $32.6 million. These debentures were originally issued in 2003 for a term of 30 years at 7.80%, and subject to regulatory approval, were able to be called in whole or in part by the Company after June 30, 2008. The Company received regulatory approval to redeem the debentures in early 2020, and notified OSBCP stockholders of the redemption in late January 2020. Cash disbursed for the redemption, including accrued interest on the debentures, totaled $33.0 million, or $10.13 per OSBCP share. The OSBCP redemption was funded by cash on hand and the $20.0 million term note discussed in Note 9 – Borrowings. Upon redemption of the junior subordinated debentures related to OSBCP in March 2020, the Company recognized the remaining unamortized debt issuance costs of $635,000.

The Company sold $25.0 million of cumulative trust preferred securities through a private placement completed by an additional, unconsolidated subsidiary, Old Second Capital Trust II, in April 2007. These trust preferred securities also mature in 30 years, but subject to regulatory approval, can be called in whole or in part on a quarterly basis commencing June 15, 2017. The quarterly cash distributions on the securities were fixed at 6.77% through June 15, 2017, and float at 150 basis points over three-month LIBOR thereafter. Upon conversion to a floating rate on June 16, 2017, a cash flow hedge was initiated, whereby the Company swapped the three-month LIBOR for a fixed rate of 2.8%. Accordingly, the effective rate of the instrument was 4.4% as of December 31, 2021 and 2020. The Company issued a new $25.8 million subordinated debenture to the Old Second Capital Trust II in return for the aggregate net proceeds of this trust preferred offering. The interest rate and payment frequency on the debenture are equivalent to the cash distribution basis on the trust preferred securities.

The Trust I and Trust II the debentures issued by the Company are disclosed on the Consolidated Balance Sheets as junior subordinated debentures and the related interest expense for each issuance is included in the Consolidated Statements of Income. As of December 31, 2021 and 2020, unamortized debt issuance costs related to the junior subordinated debentures were $1,000 respectively, and are included as a reduction to the balance of the junior subordinated debentures on the Consolidated Balance Sheets.

Under the terms of the subordinated debenture issued to Old Second Capital Trust II, the Company is allowed to defer payments of interest for 20 quarterly periods without default or penalty, but such amounts continue to accrue. Also during a deferral period, the Company generally may not pay cash dividends on or repurchase its common stock or preferred stock. As of December 31, 2021, the Company is current on the payments due on these securities.