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Ionis Pharmaceuticals (IONS) Tax Rate (2016 - 2026)

Ionis Pharmaceuticals (IONS) has disclosed Tax Rate for 17 consecutive years, with 0.24% as the latest value for Q1 2026.

  • For Q1 2026, Tax Rate fell 16.0% year-over-year to 0.24%; the TTM value through Mar 2026 reached 3.37%, down 17429.0%, while the annual FY2025 figure was 113.11%, 107134.0% up from the prior year.
  • Tax Rate hit 0.24% in Q1 2026 for Ionis Pharmaceuticals, down from 0.96% in the prior quarter.
  • Across five years, Tax Rate topped out at 2.51% in Q3 2024 and bottomed at 185.12% in Q4 2023.
  • Average Tax Rate over 5 years is 13.58%, with a median of 0.64% recorded in 2022.
  • Year-over-year, Tax Rate plummeted -16677bps in 2023 and then soared 18436bps in 2024.
  • Ionis Pharmaceuticals' Tax Rate stood at 18.36% in 2022, then plummeted by -909bps to 185.12% in 2023, then skyrocketed by 100bps to 0.76% in 2024, then soared by 227bps to 0.96% in 2025, then crashed by -124bps to 0.24% in 2026.
  • According to Business Quant data, Tax Rate over the past three periods came in at 0.24%, 0.96%, and 0.17% for Q1 2026, Q4 2025, and Q3 2025 respectively.