American Tower (AMT) Tax Rate (2009 - 2026)

American Tower has disclosed Tax Rate across 18 years of filings, most recently posting 13.71% for Q1 2026.

• Tax Rate for Q1 2026 came in at 13.71%, down 554.0% year-over-year; the trailing twelve-month figure through Mar 2026 was 12.67% (up 81.0% YoY), and the FY2025 annual result was 13.66%, up 355.0% from the prior year.
• Tax Rate came in at 13.71% for Q1 2026 at American Tower, up from 13.28% in the prior quarter.
• In the past five years, Tax Rate ranged from a high of 25.65% in Q2 2025 to a low of 11.9% in Q4 2022.
• The 5-year median for Tax Rate is 9.13% (2024), against an average of 9.03%.
• Across the five-year window, Tax Rate tumbled 2842 bps in 2022 and jumped 2295 bps in 2023, its largest moves.
• American Tower's Tax Rate stood at 11.9% in 2022, then soared by 193 bps to 11.05% in 2023, then slumped by 48 bps to 5.76% in 2024, then jumped by 131 bps to 13.28% in 2025, then increased by 3 bps to 13.71% in 2026.
• The last three Tax Rate figures came in at 13.71% (Q1 2026), 13.28% (Q4 2025), and 3.94% (Q3 2025), per Business Quant data.