Westlake (WLK) Tax Rate (2010 - 2026)
Westlake (WLK) posted quarterly Tax Rate of 17.37% for Q1 2026, up 2031.0% year-over-year from 0.82% in Q1 2025, and down 11.42% quarter-over-quarter from 19.61% in Q4 2025.
Westlake (WLK) Tax Rate (2010 - 2026) Analysis & Trends
Westlake's Tax Rate history runs 17 years deep, the most recent figure standing at 17.37% for Q1 2026.
- In Q1 2026, Tax Rate rose 2031.0% year-over-year to 17.37%; the TTM figure through Mar 2026 stood at 9.13% (down 2724.0% YoY), while the FY2025 annual figure was 7.89%, down 2313.0% from the prior year.
- Tax Rate for Q1 2026 stood at 17.37%, down from 19.61% in the prior quarter.
- The five-year high for Tax Rate was 80.21% in Q4 2024, with the low at 4.8% in Q2 2025.
- The 5-year median for Tax Rate is 19.18% (2023), against an average of 20.23%.
- The sharpest annual moves came in 2024 and 2025: Tax Rate jumped 6748 bps in 2024, then slumped 6060 bps in 2025.
- Westlake's Tax Rate stood at 18.69% in 2022, then slumped by 32 bps to 12.72% in 2023, then surged by 530 bps to 80.21% in 2024, then tumbled by 76 bps to 19.61% in 2025, then fell by 11 bps to 17.37% in 2026.
- Business Quant data shows WLK's Tax Rate at 17.37% in Q1 2026, 19.61% in Q4 2025, and 0.39% in Q3 2025.
Powered by 
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | Linde | 225.67 Bn | 220.77 Bn | 4.43 Bn | 23.96% |
| 2 | Sherwin Williams | 84.74 Bn | 84.44 Bn | 3.34 Bn | 24.17% |
| 3 | Ecolab | 78.90 Bn | 73.77 Bn | 1.95 Bn | 22.33% |
| 4 | Air Products & Chemicals | 68.19 Bn | 67.21 Bn | 1.04 Bn | 26.60% |
| 5 | Ppg Industries | 25.36 Bn | 23.77 Bn | 1.81 Bn | 22.32% |
| 6 | Chemical & Mining Co Of Chile | 23.48 Bn | 19.61 Bn | 778.60 Mn | -41.34% |
| 7 | LyondellBasell Industries | 21.91 Bn | 19.28 Bn | 2.04 Bn | 29.21% |
| 8 | International Flavors & Fragrances | 21.51 Bn | 20.94 Bn | 853.00 Mn | 48.44% |
| 9 | DuPont de Nemours | 18.83 Bn | 17.09 Bn | 639.00 Mn | 28.20% |
| 10 | Westlake | 10.13 Bn | 8.28 Bn | 652.00 Mn | 19.82% |
Historic Data
Download Data| Date | Value |
|---|---|
| Jun 30, 2026 | 19.82% |
| Jun 30, 2026 | 19.82% |
| Jun 30, 2026 | 19.82% |
| Mar 31, 2026 | 17.37% |
| Mar 31, 2026 | 17.37% |
| Mar 31, 2026 | 17.37% |
| Dec 31, 2025 | 19.61% |
| Dec 31, 2025 | 19.61% |
| Dec 31, 2025 | 19.61% |
| Sep 30, 2025 | 0.39% |
| Sep 30, 2025 | 0.39% |
| Sep 30, 2025 | 0.39% |
| Jun 30, 2025 | -4.80% |
| Jun 30, 2025 | -4.80% |
| Jun 30, 2025 | -4.80% |
| Mar 31, 2025 | -2.94% |
| Mar 31, 2025 | -2.94% |
| Mar 31, 2025 | -2.94% |
| Dec 31, 2024 | 80.21% |
| Dec 31, 2024 | 80.21% |