Amentum Holdings (AMTM) Tax Rate (2023 - 2026)

Amentum Holdings (AMTM) has 4 years of Tax Rate data on file, last reported at 30.77% in Q2 2026.

• Tax Rate for Q2 2026 came in at 30.77%, down 6090.0% year-over-year; the trailing twelve-month figure through Apr 2026 was 28.72% (down 37128.0% YoY), and the FY2025 annual result was 48.7%, up 1618.0% from the prior year.
• Tax Rate retreated to 30.77% in Q2 2026 per AMTM's latest filing, from 31.25% in the prior quarter.
• Over five years, Tax Rate peaked at 140.74% in Q3 2024 and troughed at 90.91% in Q1 2024.
• A 4-year average of 29.13% and a median of 31.01% in 2026 frame the typical range for Tax Rate.
• On a YoY basis, Tax Rate climbed as much as 18258 bps in 2025 and fell as far as 14956 bps in 2025.
• A 4-year view of Tax Rate shows it stood at 56.0% in 2023, then surged by 195 bps to 53.33% in 2024, then sank by 117 bps to 8.82% in 2025, then surged by 449 bps to 30.77% in 2026.
• Business Quant data shows AMTM's Tax Rate at 30.77% in Q2 2026, 31.25% in Q1 2026, and 8.82% in Q4 2025.