ADTRAN Holdings (ADTN) Tax Rate (2009 - 2025)

ADTRAN Holdings (ADTN) has 17 years of Tax Rate data on file, last reported at 18.34% in Q3 2025.

• On a quarterly basis, Tax Rate fell 1706.0% year-over-year to 18.34% in Q3 2025; TTM through Sep 2025 was 107.11%, a 9958.0% decrease from a year earlier, with the FY2024 full-year figure at 1.66%, up 1046.0% from the prior year.
• Tax Rate for Q3 2025 stood at 18.34%, down from 5.89% in the prior quarter.
• Over the last five years, Tax Rate for ADTN reached as high as 136.98% in Q4 2022 and fell as low as 128.27% in Q1 2023.
• Historically, Tax Rate has averaged 4.56% across 5 years, with a median of 1.94% in 2025.
• Across the five-year window, Tax Rate jumped 34511 bps in 2021 and slumped 25656 bps in 2023, its largest moves.
• Year by year, Tax Rate stood at 27.98% in 2021, then jumped by 589 bps to 136.98% in 2022, then tumbled by 121 bps to 29.32% in 2023, then plunged by 295 bps to 115.9% in 2024, then soared by 84 bps to 18.34% in 2025.
• Per Business Quant data, the three most recent Tax Rate figures were 18.34% in Q3 2025, 5.89% in Q2 2025, and 1.94% in Q1 2025.