Old Second Bancorp (OSBC) Tax Rate (2010 - 2026)

Old Second Bancorp has reported Tax Rate for 15 years, with the latest figure at 24.89% in Q1 2026.

• For the quarter ending Q1 2026, Tax Rate rose 58.0% year-over-year to 24.89%; the trailing twelve-month figure through Mar 2026 stood at 25.56% (up 7.0% YoY), and the FY2025 full-year result was 25.47%, down 26.0% from the prior year.
• Tax Rate for Q1 2026 stood at 24.89%, down from 26.69% in the prior quarter.
• The five-year high for Tax Rate was 30.07% in Q4 2024, with the low at 23.11% in Q3 2024.
• Historically, Tax Rate has averaged 25.9% across 5 years, with a median of 25.86% in 2022.
• Annual changes were most pronounced in 2022 — Tax Rate plunged 5686 bps — and 2024, when it soared 315 bps.
• Old Second Bancorp's Tax Rate stood at 25.86% in 2022, then grew by 4 bps to 26.92% in 2023, then advanced by 12 bps to 30.07% in 2024, then retreated by 11 bps to 26.69% in 2025, then declined by 7 bps to 24.89% in 2026.
• The last three Tax Rate figures came in at 24.89% (Q1 2026), 26.69% (Q4 2025), and 24.46% (Q3 2025), per Business Quant data.