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

Tetra Tech (TTEK) has 18 years of Tax Rate data on file, last reported at 26.34% in Q1 2026.

• Tax Rate for Q1 2026 came in at 26.34%, down 5627.0% year-over-year; the trailing twelve-month figure through Mar 2026 was 26.55% (down 1084.0% YoY), and the FY2025 annual result was 34.34%, up 628.0% from the prior year.
• Tax Rate climbed to 26.34% in Q1 2026 per TTEK's latest filing, from 25.68% in the prior quarter.
• Over five years, Tax Rate peaked at 94.92% in Q4 2024 and troughed at 18.76% in Q1 2022.
• A 5-year average of 34.8% and a median of 27.29% in 2023 frame the typical range for Tax Rate.
• The sharpest annual moves came in 2024 and 2025: Tax Rate surged 6879 bps in 2024, then sank 6924 bps in 2025.
• 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 slumped by 73 bps to 25.68% in 2025, then increased by 3 bps to 26.34% in 2026.
• Business Quant data shows TTEK's Tax Rate at 26.34% in Q1 2026, 25.68% in Q4 2025, and 26.72% in Q3 2025.