American Superconductor (AMSC) Tax Rate (2009 - 2025)

American Superconductor has reported Tax Rate for 17 years, with the latest figure at 2068.84% in Q4 2025.

• For the quarter ending Q4 2025, Tax Rate fell 206465.0% year-over-year to 2068.84%; the trailing twelve-month figure through Dec 2025 stood at 624.68% (down 92903.0% YoY), and the FY2025 full-year result was 757.64%, down 75478.0% from the prior year.
• Tax Rate for Q4 2025 stood at 2068.84%, down from 2.4% in the prior quarter.
• The five-year high for Tax Rate was 4844.66% in Q3 2024, with the low at 2068.84% in Q4 2025.
• Historically, Tax Rate has averaged 150.92% across 5 years, with a median of 0.2% in 2021.
• Annual changes were most pronounced in 2024 — Tax Rate surged 484912 bps — and 2025, when it slumped 484226 bps.
• American Superconductor's Tax Rate stood at 0.02% in 2021, then sank by 5707 bps to 1.34% in 2022, then tumbled by 369 bps to 6.31% in 2023, then surged by 34 bps to 4.19% in 2024, then plunged by 49325 bps to 2068.84% in 2025.
• The last three Tax Rate figures came in at 2068.84% (Q4 2025), 2.4% (Q3 2025), and 2.87% (Q2 2025), per Business Quant data.