Koppers Holdings (KOP) Tax Rate (2009 - 2025)

Koppers Holdings has disclosed Tax Rate across 17 years of filings, most recently posting 23.26% for Q4 2025.

• Tax Rate for Q4 2025 came in at 23.26%, down 736.0% year-over-year; the trailing twelve-month figure through Dec 2025 was 31.03% (up 116.0% YoY), and the FY2025 annual result was 31.03%, up 116.0% from the prior year.
• Tax Rate came in at 23.26% for Q4 2025 at Koppers Holdings, down from 33.52% in the prior quarter.
• In the past five years, Tax Rate ranged from a high of 40.99% in Q3 2022 to a low of 13.87% in Q4 2021.
• The 5-year median for Tax Rate is 28.22% (2024), against an average of 26.62%.
• Peak annual rise in Tax Rate reached 182450 bps in 2021, while the deepest fall reached 3877 bps in 2021.
• Koppers Holdings' Tax Rate stood at 13.87% in 2021, then jumped by 187 bps to 12.03% in 2022, then surged by 183 bps to 34.01% in 2023, then declined by 10 bps to 30.61% in 2024, then retreated by 24 bps to 23.26% in 2025.
• The last three Tax Rate figures came in at 23.26% (Q4 2025), 33.52% (Q3 2025), and 31.38% (Q2 2025), per Business Quant data.