Iron Mountain (IRM) Tax Rate (2009 - 2026)

Iron Mountain (IRM) posted Tax Rate of 15.4% for Q1 2026, up 43.32% sequentially from 10.74% in Q4 2025, and down 3235.0% YoY from 0.49% in Q1 2025.

Iron Mountain (IRM) Tax Rate (2009 - 2026) Analysis & Trends

Iron Mountain has reported Tax Rate for 18 years, with the latest figure at 15.4% in Q1 2026.

Quarterly Tax Rate fell 3235.0% year-over-year to 15.4% in Q1 2026, while the trailing twelve-month figure through Mar 2026 was 19.99% (down 1248.0% YoY) and the FY2025 annual result came in at 27.91%, up 301.0% from the prior year.
Tax Rate climbed to 15.4% in Q1 2026 per IRM's latest filing, from 10.74% in the prior quarter.
Over five years, Tax Rate peaked at 78.83% in Q2 2023 and troughed at 60.26% in Q2 2025.
A 5-year average of 12.67% and a median of 15.4% in 2026 frame the typical range for Tax Rate.
The widest YoY moves for Tax Rate: up 7445 bps in 2025, down 8804 bps in 2025.
Over 5 years, Tax Rate stood at 12.16% in 2022, then surged by 94 bps to 23.6% in 2023, then tumbled by 37 bps to 14.93% in 2024, then slipped by 28 bps to 10.74% in 2025, then surged by 43 bps to 15.4% in 2026.
According to Business Quant data, Tax Rate over the past three periods registered 15.4%, 10.74%, and 16.14% for Q1 2026, Q4 2025, and Q3 2025 respectively.

#	Company	Market Cap	Enterprise Value	Gross Profit (Qtr)	Tax Rate (Qtr)
1	Equinix	107.27 Bn	105.05 Bn	1.40 Bn	8.80%
2	American Tower	81.73 Bn	79.96 Bn	2.72 Bn	12.07%
3	Digital Realty Trust	69.02 Bn	67.16 Bn	-	9.53%
4	Iron Mountain	36.96 Bn	36.76 Bn	1.07 Bn	12.24%
5	Crown Castle	32.74 Bn	31.70 Bn	989.00 Mn	1.32%
6	Sba Communications	19.16 Bn	19.16 Bn	539.27 Mn	15.48%
7	Weyerhaeuser	17.70 Bn	17.17 Bn	311.00 Mn	-10.20%
8	Lamar Advertising	15.29 Bn	15.23 Bn	422.53 Mn	1.64%
9	Gaming & Leisure Properties	12.43 Bn	12.43 Bn	-	0.26%
10	Rayonier	6.39 Bn	5.97 Bn	75.67 Mn	12.82%

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