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Tetra Tech (TTEK) Tax Rate: 2009-2025

Historic Tax Rate for Tetra Tech (TTEK) over the last 16 years, with Sep 2025 value amounting to 26.72%.

  • Tetra Tech's Tax Rate fell 227.00% to 26.72% in Q3 2025 from the same period last year, while for Sep 2025 it was 34.34%, marking a year-over-year increase of 628.00%. This contributed to the annual value of 34.34% for FY2025, which is 628.00% up from last year.
  • Per Tetra Tech's latest filing, its Tax Rate stood at 26.72% for Q3 2025, which was down 2.21% from 27.32% recorded in Q2 2025.
  • Tetra Tech's Tax Rate's 5-year high stood at 94.92% during Q4 2024, with a 5-year trough of 18.76% in Q1 2022.
  • Over the past 3 years, Tetra Tech's median Tax Rate value was 28.35% (recorded in 2024), while the average stood at 39.70%.
  • The largest annual percentage gain for Tetra Tech's Tax Rate in the last 5 years was 6,879bps (2024), contrasted with its biggest fall of 1,417bps (2024).
  • Tetra Tech's Tax Rate (Quarterly) stood at 22.58% in 2021, then soared by 499bps to 25.99% in 2022, then surged by 159bps to 26.13% in 2023, then skyrocketed by 6,879bps to 94.92% in 2024, then plummeted by 227bps to 26.72% in 2025.
  • Its Tax Rate stands at 26.72% for Q3 2025, versus 27.32% for Q2 2025 and 82.60% for Q1 2025.