HTS 2809Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined
Rate lines5
Duty by country of origin
| Rate line | Mexico37.03% of imports | Belgium24.09% of imports | Morocco18.38% of imports | Israel6.88% of imports | Taiwan3.5% of imports | China2.29% of imports | South Africa1.5% of imports | Canada1.48% of imports | Vietnam1.33% of imports | India1.24% of imports |
|---|---|---|---|---|---|---|---|---|---|---|
| 2809.10.00.00Diphosphorus pentaoxide | 10%9903.05.55 | 10%9903.05.39 | 12.5%9903.05.56 | 12.5%9903.05.47 | 10%9903.05.76 | 37.5%9903.05.319903.88.03 | 12.5%9903.05.69 | 10%9903.05.29 | 12.5%9903.05.84 | 10%9903.05.44 |
| 2809.20.00.10Containing less than 65 percent available diphosphorus pentaoxide (P2O5) equivalents | 10%9903.05.55 | 10%9903.05.39 | 12.5%9903.05.56 | 12.5%9903.05.47 | 10%9903.05.76 | 37.5%9903.05.319903.88.03 | 12.5%9903.05.69 | 10%9903.05.29 | 12.5%9903.05.84 | 10%9903.05.44 |
| 2809.20.00.20Other | 10%9903.05.55 | 10%9903.05.39 | 12.5%9903.05.56 | 12.5%9903.05.47 | 10%9903.05.76 | 37.5%9903.05.319903.88.03 | 12.5%9903.05.69 | 10%9903.05.29 | 12.5%9903.05.84 | 10%9903.05.44 |
| 2809.20.00.30Other | 10%9903.05.55 | 10%9903.05.39 | 12.5%9903.05.56 | 12.5%9903.05.47 | 10%9903.05.76 | 37.5%9903.05.319903.88.03 | 12.5%9903.05.69 | 10%9903.05.29 | 12.5%9903.05.84 | 10%9903.05.44 |
| 2809.20.00.40Polyphosphoric acids | 10%9903.05.55 | 10%9903.05.39 | 12.5%9903.05.56 | 12.5%9903.05.47 | 10%9903.05.76 | 37.5%9903.05.319903.88.03 | 12.5%9903.05.69 | 10%9903.05.29 | 12.5%9903.05.84 | 10%9903.05.44 |
Total duty on a $10,000 ocean shipment entered 2026-10-13, before customs fees. Origins are the leading sources of US imports under this heading in 2025 (US Census Bureau).