Importers of HS 8431.49 (of machinery of heading 8426) from Thailand actually paid 24.18% on the taxed portion of the value in 2026-06 — 23.08% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is Free. Over the window the rate on the taxed portion moved null% → 24.18%, with the largest single step +22.7pp in 2025-03. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is Free — importers actually paid 24.18%, so the trade-war overlay added 24.2 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8431.49", origin: "Thailand") · see it at trimtabist.com/tariffs
HS 8431.49. The schedule base rate is Free; importers from Thailand actually paid 24.18% on the dutiable value in 2026-06 — the trade-war overlay added 24.2 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved % (2023-07) → 24.18% (2026-06), largest single step +22.7pp in 2025-03.
Thailand's lower duty (23.08% vs 46.42%) lets it price up to 19% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $4.26/kg vs $5.08/kg (duty in, freight out).
All goods from Thailand · the whole tariff ledger · 19 CBP rulings cite this code · reproduce: tariff_story(hs: "8431.49", origin: "Thailand") via /connect. Not customs or legal advice.