Tariff Impact Estimator
Estimate import tariff rates for dietary supplement ingredients by origin country and ingredient category. Tariff rates change frequently. This tool shows general ranges for planning purposes. Always verify rates with a licensed customs broker before making sourcing decisions.
Example: vitamins, minerals, and amino acids imported from China
From July 24, 2026 the forced-labor Section 301 layer splits this category: vitamins (2936) exempt as entered; amino acids, CoQ10, and EPA/DHA covered at +12.5% (combined band shown).
Select your origin country and ingredient category below for specific rates.
Tariff data last updated: September 22, 2026
Largest global supplier of supplement ingredients. Subject to 2018-19 Section 301 tariffs on most supplement lines, by HTS line rather than by category: vitamins (2936) and CoQ10 (2914.62.00) are not on those lists, but many amino acids and mineral salts are (glycine 2922.49.43 and magnesium sulfate 2833.21.00 carry +25%), and raw tea, spices and extracts carry +7.5%. PLUS the forced-labor Section 301 duties: an additional 12.5% on covered lines for entries on or after Jul 24, 2026, applied date-gated by the tools. Vitamins (2936), many mineral salts and raw tea/spice forms are exempt from that newer layer as entered under the action's Note 52(b), which does not remove any older duty; amino acids, CoQ10, extracts and finished preparations are covered for supplement use. IEEPA tariffs struck down Feb 2026; the temporary Section 122 surcharge (10%) applied additionally for non-exempt categories on entries Feb 24 through Jul 23, 2026 and terminated by operation of law at 12:01 a.m. EDT Jul 24, 2026.
Exemptions must be checked separately for each tariff program. The 2018-19 China Section 301 lists still cover some amino acids and mineral salts: glycine (2922.49.43) and magnesium sulfate (2833.21.00) carry an older 25% duty in addition to MFN. The newer forced-labor action exempts vitamin lines under 2936 and listed mineral salts under Note 52(b); its Note 52(e) chemical exemptions require pharmaceutical use. Supplement-use glycine therefore carries the new 12.5% China duty as well. The China category ceiling is a conservative 44% across modeled layers; actual classifications, exclusions and AD/CVD are separate.
Estimated Tariff Impact
0% – 44.0%
Estimated duty rate range
Base (MFN + 2018-19 Section 301): 0% – 31.5%
Forced-labor Section 301 (entries from Jul 24, 2026): +0% on exempt-as-entered lines; +12.5% on covered lines (see the category note below)
Includes the forced-labor Section 301 duties effective July 24, 2026 (final action: 12.5% China, 10% India, 10% net-of-MFN EU) for entries on or after 12:01 a.m. ET July 24, 2026. Goods loaded and in transit before that instant and entered before July 28, 2026 are excepted and owe the lower pre-action rates. Exemptions are per HTS line under the action's Annex II: vitamins (2936) and raw tea/spice forms are exempt as entered, while amino acids, CoQ10, botanical extracts, and finished preparations are covered for supplement use — confirm your line at hts.usitc.gov or with a licensed customs broker.
The base band includes MFN plus applicable 2018-19 China Section 301 duties. There is no category-wide exemption from those older lists. Glycine (2922.49.43) carries 4.2% MFN plus 25% under 9903.88.03; for supplement use it also carries the 12.5% forced-labor duty, for 41.7% across the modeled layers. Magnesium sulfate (2833.21.00) carries 3.7% MFN plus the older 25%, even though Note 52(b) exempts it from the new layer. Vitamin A (2936.21.00) has Free MFN, no older China-list duty, and a Note 52(b) exemption. The 31.5% base ceiling and 44% combined ceiling are realized on one line: 2922.49.30 (aromatic amino acids; CBP NY E82528 of 1999 classified DL-phenylalanine from China there) carries 6.5% MFN, 25% under 9903.88.03 and, for supplement use, the 12.5% layer, because Note 52(e) exempts it only for pharmaceutical applications. Most ingredients in the category sit well below that ceiling. Product-specific exclusions, pharmaceutical-use conditions, classification, and AD/CVD require separate checks. The Section 122 surcharge applied to non-exempt entries during February 24 through July 23, 2026 and ended at 12:01 a.m. EDT July 24. Its Annex II exemptions did not remove older China Section 301 duties. The forced-labor layer applies from 12:01 a.m. ET July 24, 2026, subject to the published in-transit exception for qualifying goods entered before July 28. AD/CVD orders are outside this model; the September 16, 2026 orders on lysine from China (91 FR 58627) cover animal-feed-grade lysine only. Re-verified 2026-09-22 against HTSUS 2026 Rev 19 (MFN lines, U.S. notes 20 and 52, headings 9903.88.03 and 9903.05.31) and the USITC China Tariffs concordance (last updated July 28, 2026); no named line changed from the 2026-09-08 read. Receipts: data/research/tariff-matrix-refresh-2026-09-22.md; data/research/2026-09-08-tariff-source-revalidation.md.
Estimated annual tariff cost
$0 – $11.0K
Based on 500 kg at $50/kg ($25,000 ingredient value)
Alternative sourcing options
United States (domestic)
Eliminates tariff exposure entirely — increasingly material now that amino acids, CoQ10, and other pharma-use-only chemical lines carry the 12.5% forced-labor layer on Chinese supplement-use imports (entries on or after Jul 24, 2026; vitamins 2936 remain exempt as entered). US domestic supply is limited and typically 50-100% more expensive for commodity ingredients. Best for brands prioritizing supply chain resilience over cost.
Verify current rates
These are estimated ranges based on general HTS chapter classifications. Your actual duty rate depends on your specific product's HTS code, which is determined by US Customs and Border Protection based on product composition, processing method, and intended use. Always consult a licensed customs broker before making sourcing decisions.
See our guide on tariff impacts on supplement sourcing →