U.S. imports of Phosphoric Acid & Polyphosphoric Acids (HS 280920) totaled $27.0M in August 2026, imported from 23 countries.
Importers of Phosphoric Acid & Polyphosphoric Acids paid $1.7M in duties in August 2026, an average duty rate of 6.22% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Phosphoric Acid & Polyphosphoric Acids imports of $27.0M in August 2026 ran 16% below the year-to-date monthly average of $32.3M.
Last updated: August 2026 dataFertilizer-grade phosphoric acid — the dominant volume product under this heading — is split from technical and food-grade material at the 10-digit level, with lines distinguishing P₂O₅ content below 65% (2809200010), at or above 65% (2809200020), non-fertilizer grades (2809200030), and polyphosphoric acids (2809200040). Morocco, a global leader in phosphate rock mining, is a major supplier alongside Mexico, reflecting the tight integration between phosphate mining and acid production. Importers of food-grade phosphoric acid should be aware that FDA oversight applies to material destined for food and beverage applications, requiring compliance with food-additive specifications.
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112 import shipments a month
Classification depends on two factors: P₂O₅ equivalent concentration and intended use. Fertilizer-grade acid below 65% P₂O₅ goes to 2809200010; fertilizer-grade at or above 65% P₂O₅ to 2809200020; non-fertilizer grades (including food, electronic, and technical grades) to 2809200030; and polyphosphoric acid mixtures to 2809200040. Importers should obtain a certificate of analysis confirming concentration and a commercial invoice specifying end use to support the classification.
FDA oversight applies when phosphoric acid is intended for use as a food additive, acidulant in beverages, or in pharmaceutical manufacturing. Such shipments must meet FDA food-additive purity specifications and may be subject to FDA prior notice and port-of-entry examination. Importers should ensure their supplier's product meets the relevant Food Chemicals Codex or USP monograph standards and consult a licensed customs broker or regulatory specialist for admissibility guidance.
Subheading 1 of 2 in heading 2809
Subheading 280920 · $27.0M of $27.2M
ImportsExports
Imports
$27.0MYoY · free account
Exports
$29.9MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $343.2M of Phosphoric Acid & Polyphosphoric Acids and exported $403.4M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2809200030 | Phosphoric Acid Other Than Fertilizer Grade | $26.1M | 6.43% | 57.50% | $1.7M |
| 2809200040 | Polyphosphoric Acids | $840K | 0.23% | 99.34% | $2K |
| 2809200020 | Phos Acid Cont. 65 Percent or More P205 Equivalen | $83K | 0.00% | 90.00% | -- |
| 2809200010 | Phosphoric Acid, Fert Grade, Cont < 65% P205 | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Mexico and Belgium together supply 63% of it. Morocco pays 12.5% duty; Mexico 0.0%.
customs district
destination
entry
rate provision · imports
41.1% enters free of duty; duty collected equals 6.22% of imports for consumption.