Ardelyx (ARDX) Tax Rate (2013 - 2026)

Ardelyx has reported Tax Rate for 13 years, with the latest figure at 0.02% in Q1 2026.

• For the quarter ending Q1 2026, Tax Rate rose 211.0% year-over-year to 0.02%; the trailing twelve-month figure through Mar 2026 stood at 0.2% (up 170.0% YoY), and the FY2025 full-year result was 1.6%, down 91.0% from the prior year.
• Tax Rate for Q1 2026 stood at 0.02%, up from 1.75% in the prior quarter.
• The five-year high for Tax Rate was 2.93% in Q3 2023, with the low at 11.76% in Q3 2025.
• Historically, Tax Rate has averaged 1.41% across 5 years, with a median of 0.23% in 2024.
• Annual changes were most pronounced in 2024 — Tax Rate sank 854 bps — and 2026, when it soared 211 bps.
• Ardelyx's Tax Rate stood at 0.02% in 2022, then sank by 5150 bps to 1.17% in 2023, then soared by 164 bps to 0.75% in 2024, then slumped by 334 bps to 1.75% in 2025, then jumped by 99 bps to 0.02% in 2026.
• The last three Tax Rate figures came in at 0.02% (Q1 2026), 1.75% (Q4 2025), and 11.76% (Q3 2025), per Business Quant data.