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

Tetra Tech (TTEK) has reported Tax Rate for 18 consecutive years, with 26.34% the latest figure, recorded in 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 grew to 26.34% in Q1 2026 per TTEK's latest filing, from 25.68% in the prior quarter.
• Across five years, Tax Rate topped out at 94.92% in Q4 2024 and bottomed at 18.76% in Q1 2022.
• Historically, Tax Rate has averaged 34.8% across 5 years, with a median of 27.29% in 2023.
• Annual changes were most pronounced in 2024 — Tax Rate surged 6879 bps — and 2025, when it sank 6924 bps.
• Tetra Tech's Tax Rate stood at 25.99% in 2022, then advanced by 1 bps to 26.13% in 2023, then jumped by 263 bps to 94.92% in 2024, then tumbled by 73 bps to 25.68% in 2025, then rose 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.