Innospec (IOSP) Tax Rate (2010 - 2026)

Innospec has disclosed Tax Rate across 17 years of filings, most recently posting 22.81% for Q1 2026.

• Tax Rate for Q1 2026 came in at 22.81%, down 286.0% year-over-year; the trailing twelve-month figure through Mar 2026 was 26.64% (down 6040.0% YoY), and the FY2025 annual result was 12.36%, down 4342.0% from the prior year.
• Tax Rate came in at 22.81% for Q1 2026 at Innospec, down from 35.22% in the prior quarter.
• In the past five years, Tax Rate ranged from a high of 80.53% in Q4 2023 to a low of 12.17% in Q3 2025.
• The 5-year median for Tax Rate is 25.14% (2024), against an average of 27.0%.
• Across the five-year window, Tax Rate surged 4750 bps in 2022 and sank 5616 bps in 2024, its largest moves.
• Innospec's Tax Rate stood at 43.58% in 2022, then surged by 85 bps to 80.53% in 2023, then slumped by 70 bps to 24.37% in 2024, then surged by 45 bps to 35.22% in 2025, then tumbled by 35 bps to 22.81% in 2026.
• The last three Tax Rate figures came in at 22.81% (Q1 2026), 35.22% (Q4 2025), and 12.17% (Q3 2025), per Business Quant data.