Importers of HS 6403.91 (welt footwear) from Thailand actually paid 19.59% on the taxed portion of the value in 2026-06 — 19.59% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 5%. Over the window the rate on the taxed portion moved 8.89% → 19.59%, with the largest single step +8.4pp in 2025-05. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 5% — importers actually paid 19.59%, so the trade-war overlay added 14.6 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "6403.91", origin: "Thailand") · see it at trimtabist.com/tariffs
HS 6403.91. The schedule base rate is 5%; importers from Thailand actually paid 19.59% on the dutiable value in 2026-06 — the trade-war overlay added 14.6 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 8.89% (2023-07) → 19.59% (2026-06), largest single step +8.4pp in 2025-05.
Thailand's lower duty (19.59% vs 25.33%) lets it price up to 4.8% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $17.66/kg vs $23.44/kg (duty in, freight out).
All goods from Thailand · the whole tariff ledger · reproduce: tariff_story(hs: "6403.91", origin: "Thailand") via /connect. Not customs or legal advice.