Growth Metrics

Castle Biosciences (CSTL) Tax Rate (2018 - 2025)

Castle Biosciences' Tax Rate history spans 7 years, with the latest figure at 13.67% for Q4 2025.

  • For Q4 2025, Tax Rate rose 3529.0% year-over-year to 13.67%; the TTM value through Dec 2025 reached 18.15%, up 276.0%, while the annual FY2025 figure was 18.15%, 276.0% up from the prior year.
  • Tax Rate for Q4 2025 was 13.67% at Castle Biosciences, up from 29.79% in the prior quarter.
  • Across five years, Tax Rate topped out at 3270.63% in Q2 2025 and bottomed at 29.79% in Q3 2025.
  • The 5-year median for Tax Rate is 0.09% (2023), against an average of 197.36%.
  • The largest YoY upside for Tax Rate was 328374bps in 2025 against a maximum downside of -10240bps in 2025.
  • A 5-year view of Tax Rate shows it 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 soared by 163bps to 13.67% in 2025.
  • Per Business Quant, the three most recent readings for CSTL's Tax Rate are 13.67% (Q4 2025), 29.79% (Q3 2025), and 3270.63% (Q2 2025).