Growth Metrics

White Mountains Insurance (WTM) Tax Rate (2016 - 2026)

White Mountains Insurance has reported Tax Rate over the past 17 years, most recently at 9.69% for Q4 2025.

  • For Q4 2025, Tax Rate rose 1275.0% year-over-year to 9.69%; the TTM value through Dec 2025 reached 9.55%, down 74.0%, while the annual FY2025 figure was 9.55%, 74.0% down from the prior year.
  • Tax Rate for Q4 2025 was 9.69% at White Mountains Insurance, up from 9.56% in the prior quarter.
  • Over five years, Tax Rate peaked at 52.33% in Q4 2022 and troughed at 25.16% in Q4 2021.
  • A 5-year average of 7.61% and a median of 6.86% in 2022 define the central range for Tax Rate.
  • Biggest five-year swings in Tax Rate: soared 7749bps in 2022 and later plummeted -6297bps in 2023.
  • Year by year, Tax Rate stood at 25.16% in 2021, then surged by 308bps to 52.33% in 2022, then tumbled by -120bps to 10.65% in 2023, then soared by 71bps to 3.07% in 2024, then soared by 416bps to 9.69% in 2025.
  • Business Quant data shows Tax Rate for WTM at 9.69% in Q4 2025, 9.56% in Q3 2025, and 7.31% in Q2 2025.