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Alliant Energy (LNT) Tax Rate (2016 - 2025)

Alliant Energy filings provide 17 years of Tax Rate readings, the most recent being 39.22% for Q4 2025.

  • On a quarterly basis, Tax Rate fell 3207.0% to 39.22% in Q4 2025 year-over-year; TTM through Dec 2025 was 22.36%, a 236.0% decrease, with the full-year FY2025 number at 22.54%, down 275.0% from a year prior.
  • Tax Rate hit 39.22% in Q4 2025 for Alliant Energy, down from 6.84% in the prior quarter.
  • In the past five years, Tax Rate ranged from a high of 5.81% in Q3 2022 to a low of 61.11% in Q2 2024.
  • Median Tax Rate over the past 5 years was 7.14% (2024), compared with a mean of 13.12%.
  • The widest YoY moves for Tax Rate: up 2829bps in 2025, down -3207bps in 2025.
  • Alliant Energy's Tax Rate stood at 9.2% in 2021, then surged by 58bps to 3.88% in 2022, then soared by 121bps to 0.82% in 2023, then plummeted by -971bps to 7.14% in 2024, then plummeted by -449bps to 39.22% in 2025.
  • The last three reported values for Tax Rate were 39.22% (Q4 2025), 6.84% (Q3 2025), and 32.82% (Q2 2025) per Business Quant data.