Tetra Tech (TTEK) Tax Rate (2009 - 2026)

Tetra Tech has disclosed Tax Rate across 18 years of filings, most recently posting 26.34% for Q1 2026.

• In Q1 2026, Tax Rate fell 5627.0% year-over-year to 26.34%; the TTM figure through Mar 2026 stood at 26.55% (down 1084.0% YoY), while the FY2025 annual figure was 34.34%, up 628.0% from the prior year.
• Tax Rate rose to 26.34% in Q1 2026, from 25.68% in the prior quarter.
• Over the last five years, Tax Rate for TTEK reached as high as 94.92% in Q4 2024 and fell as low as 18.76% in Q1 2022.
• The 5-year median for Tax Rate is 27.29% (2023), against an average of 34.8%.
• Annual changes were most pronounced in 2024 — Tax Rate surged 6879 bps — and 2025, when it tumbled 6924 bps.
• A 5-year view of Tax Rate shows it stood at 25.99% in 2022, then gained by 1 bps to 26.13% in 2023, then soared by 263 bps to 94.92% in 2024, then plunged by 73 bps to 25.68% in 2025, then increased by 3 bps to 26.34% in 2026.
• According to Business Quant data, Tax Rate over the past three periods registered 26.34%, 25.68%, and 26.72% for Q1 2026, Q4 2025, and Q3 2025 respectively.