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Quest Diagnostics (DGX) Tax Rate: 2009-2025

Historic Tax Rate for Quest Diagnostics (DGX) over the last 17 years, with Sep 2025 value amounting to 23.48%.

  • Quest Diagnostics' Tax Rate rose 152.00% to 23.48% in Q3 2025 from the same period last year, while for Sep 2025 it was 23.39%, marking a year-over-year increase of 138.00%. This contributed to the annual value of 23.23% for FY2024, which is 129.00% up from last year.
  • Quest Diagnostics' Tax Rate amounted to 23.48% in Q3 2025, which was down 7.07% from 25.26% recorded in Q2 2025.
  • Quest Diagnostics' Tax Rate's 5-year high stood at 25.26% during Q2 2025, with a 5-year trough of 16.88% in Q4 2023.
  • Moreover, its 3-year median value for Tax Rate was 23.47% (2023), whereas its average is 22.72%.
  • Per our database at Business Quant, Quest Diagnostics' Tax Rate crashed by 422bps in 2021 and then spiked by 586bps in 2024.
  • Quarterly analysis of 5 years shows Quest Diagnostics' Tax Rate stood at 22.71% in 2021, then tumbled by 32bps to 23.08% in 2022, then plummeted by 33bps to 16.88% in 2023, then soared by 586bps to 22.74% in 2024, then skyrocketed by 152bps to 23.48% in 2025.
  • Its last three reported values are 23.48% in Q3 2025, 25.26% for Q2 2025, and 21.38% during Q1 2025.