KPIs & Operating Metrics(New)
Growth Metrics

Iron Mountain (IRM) Tax Rate (2016 - 2025)

Iron Mountain's Tax Rate history spans 17 years, with the latest figure at 10.74% for Q4 2025.

  • For Q4 2025, Tax Rate fell 418.0% year-over-year to 10.74%; the TTM value through Dec 2025 reached 27.91%, up 301.0%, while the annual FY2025 figure was 27.91%, 301.0% up from the prior year.
  • Tax Rate for Q4 2025 was 10.74% at Iron Mountain, down from 16.14% in the prior quarter.
  • Across five years, Tax Rate topped out at 78.83% in Q2 2023 and bottomed at 60.26% in Q2 2025.
  • The 5-year median for Tax Rate is 18.6% (2024), against an average of 15.45%.
  • The largest annual shift saw Tax Rate plummeted -34823bps in 2021 before it skyrocketed 7445bps in 2025.
  • A 5-year view of Tax Rate shows it stood at 27.42% in 2021, then plummeted by -56bps to 12.16% in 2022, then skyrocketed by 94bps to 23.6% in 2023, then crashed by -37bps to 14.93% in 2024, then decreased by -28bps to 10.74% in 2025.
  • Per Business Quant, the three most recent readings for IRM's Tax Rate are 10.74% (Q4 2025), 16.14% (Q3 2025), and 60.26% (Q2 2025).