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Castle Biosciences (CSTL) Tax Rate (2018 - 2026)

Castle Biosciences' Tax Rate history spans 8 years, with the latest figure at 14.08% for Q4 2025.

  • On a quarterly basis, Tax Rate rose 3570.0% to 14.08% in Q4 2025 year-over-year; TTM through Dec 2025 was 18.15%, a 276.0% increase, with the full-year FY2025 number at 18.15%, up 276.0% from a year prior.
  • Tax Rate hit 14.08% in Q4 2025 for Castle Biosciences, up from 29.79% in the prior quarter.
  • Over the last five years, Tax Rate for CSTL hit a ceiling of 3262.94% in Q2 2025 and a floor of 29.79% in Q3 2025.
  • Historically, Tax Rate has averaged 196.93% across 5 years, with a median of 0.09% in 2023.
  • The widest YoY moves for Tax Rate: up 327605bps in 2025, down -10240bps in 2025.
  • Tracing CSTL's Tax Rate over 5 years: stood at 11.71% in 2021, then plummeted by -102bps to 0.28% in 2022, then tumbled by -454bps to 1.53% in 2023, then plummeted by -1309bps to 21.62% in 2024, then surged by 165bps to 14.08% in 2025.
  • Business Quant data shows Tax Rate for CSTL at 14.08% in Q4 2025, 29.79% in Q3 2025, and 3262.94% in Q2 2025.