HTS 3814 — Organic composite solvents and thinners Tariff Rate (2026)

Products classified under HTS 3814 — Organic composite solvents and thinners — are among the globally sourced imports entering the US. Organic composite solvents and thinners not elsewhere specified. Used in paints, coatings, and cleaning. On top of the MFN rate, most non-EU imports under this heading carry the Section 301 forced-labor tariff — a two-tier 10%/12.5% duty that replaced the flat 10% Section 122 rate on July 24, 2026. EU-origin goods instead fall under the EU-US trade deal's 15% all-inclusive ceiling (effective July 1, 2026), where nothing stacks and goods with an MFN rate of 15% or more pay MFN only. Chinese-origin goods add a Section 301 China tariff of 25% on top. Worked example: a $10,000 shipment under HTS 3814 owes about $370 in MFN duty (3.7%); adding the 10% base forced-labor surcharge brings it to roughly $1,370 from a standard-tier origin, or about $1,620 from a 12.5%-tier origin such as China (before that origin's Section 301 China tariff). Check your exact figure with the tariff calculator. The top countries of origin for HTS 3814 imports include CA, DE, CN, MX, JP. Effective duty varies by source country based on trade agreements (USMCA, KORUS) and tariff programs — see the per-country tariff rates by country for how CA compares.