Amphastar Pharmaceuticals (AMPH) Tax Rate (2013 - 2026)
Amphastar Pharmaceuticals (AMPH) posted quarterly Tax Rate of 36.13% for Q1 2026, up 1806.0% year-over-year from 1.9% in Q1 2025, and up 173.59% quarter-over-quarter from 49.1% in Q4 2025.
Amphastar Pharmaceuticals (AMPH) Tax Rate (2013 - 2026) Analysis & Trends
Amphastar Pharmaceuticals' Tax Rate history runs 14 years deep, the most recent figure standing at 36.13% for Q1 2026.
- In Q1 2026, Tax Rate rose 1806.0% year-over-year to 36.13%; the TTM figure through Mar 2026 stood at 0.42% (down 1760.0% YoY), while the FY2025 annual figure was 1.92%, down 1371.0% from the prior year.
- Tax Rate for Q1 2026 stood at 36.13%, up from 49.1% in the prior quarter.
- The five-year high for Tax Rate was 36.13% in Q1 2026, with the low at 49.1% in Q4 2025.
- The 5-year median for Tax Rate is 19.35% (2025), against an average of 14.74%.
- The sharpest annual moves came in 2025 and 2026: Tax Rate plunged 6274 bps in 2025, then surged 1806 bps in 2026.
- Amphastar Pharmaceuticals' Tax Rate stood at 17.67% in 2022, then slumped by 119 bps to 3.32% in 2023, then jumped by 510 bps to 13.64% in 2024, then slumped by 460 bps to 49.1% in 2025, then soared by 174 bps to 36.13% in 2026.
- Business Quant data shows AMPH's Tax Rate at 36.13% in Q1 2026, 49.1% in Q4 2025, and 19.35% in Q3 2025.
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Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | Haleon | 44.07 Bn | 43.10 Bn | - | - |
| 2 | Teva Pharmaceutical Industries | 43.42 Bn | 39.76 Bn | 2.15 Bn | -26.59% |
| 3 | Zoetis | 31.86 Bn | 30.18 Bn | 1.05 Bn | - |
| 4 | Takeda Pharmaceutical | 28.77 Bn | 22.98 Bn | 5.10 Bn | -30.40% |
| 5 | United Therapeutics | 22.29 Bn | 19.63 Bn | 683.80 Mn | 10.65% |
| 6 | Viatris | 18.78 Bn | 17.89 Bn | 1.46 Bn | -85.63% |
| 7 | Neurocrine Biosciences | 15.66 Bn | 15.27 Bn | 935.80 Mn | 10.97% |
| 8 | Elanco Animal Health | 11.91 Bn | 11.38 Bn | 798.00 Mn | 3.57% |
| 9 | Dr Reddys Laboratories | 10.16 Bn | 10.00 Bn | - | - |
| 10 | Amphastar Pharmaceuticals | 934.42 Mn | 644.30 Mn | 93.47 Mn | 21.26% |
Historic Data
Download Data| Date | Value |
|---|---|
| Jun 30, 2026 | 21.26% |
| Jun 30, 2026 | 21.26% |
| Jun 30, 2026 | 21.26% |
| Mar 31, 2026 | 36.13% |
| Mar 31, 2026 | 36.13% |
| Mar 31, 2026 | 36.13% |
| Dec 31, 2025 | -49.10% |
| Dec 31, 2025 | -49.10% |
| Dec 31, 2025 | -49.10% |
| Sep 30, 2025 | 19.35% |
| Sep 30, 2025 | 19.35% |
| Sep 30, 2025 | 19.35% |
| Jun 30, 2025 | 21.11% |
| Jun 30, 2025 | 21.11% |
| Jun 30, 2025 | 21.11% |
| Mar 31, 2025 | 18.07% |
| Mar 31, 2025 | 18.07% |
| Mar 31, 2025 | 18.07% |
| Dec 31, 2024 | 13.64% |
| Dec 31, 2024 | 13.64% |