Ironwood Pharmaceuticals (IRWD) Tax Rate (2010 - 2026)

Ironwood Pharmaceuticals has disclosed Tax Rate across 9 years of filings, most recently posting 37.44% for Q1 2026.

• Tax Rate for Q1 2026 came in at 37.44%, up 4047.0% year-over-year; the trailing twelve-month figure through Mar 2026 was 276.03% (up 26776.0% YoY), and the FY2025 annual result was 5.71%, down 938.0% from the prior year.
• Tax Rate came in at 37.44% for Q1 2026 at Ironwood Pharmaceuticals, up from 23.69% in the prior quarter.
• In the past five years, Tax Rate ranged from a high of 183.95% in Q1 2024 to a low of 16.37% in Q4 2023.
• The 5-year median for Tax Rate is 32.38% (2022), against an average of 42.85%.
• Across the five-year window, Tax Rate soared 65074 bps in 2022 and slumped 18698 bps in 2025, its largest moves.
• Ironwood Pharmaceuticals' Tax Rate stood at 32.38% in 2022, then plunged by 151 bps to 16.37% in 2023, then surged by 298 bps to 32.38% in 2024, then decreased by 27 bps to 23.69% in 2025, then soared by 58 bps to 37.44% in 2026.
• The last three Tax Rate figures came in at 37.44% (Q1 2026), 23.69% (Q4 2025), and 41.08% (Q3 2025), per Business Quant data.