Importers of HS 9405.42 (other) from Vietnam actually paid 14.74% on the taxed portion of the value in 2026-06 — 14.62% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 3.9%. Over the window the rate on the taxed portion moved 4.66% → 14.74%, with the largest single step -7.7pp in 2026-03. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 3.9% — importers actually paid 14.74%, so the trade-war overlay added 10.8 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "9405.42", origin: "Vietnam") · see it at trimtabist.com/tariffs
HS 9405.42. The schedule base rate is 3.9%; importers from Vietnam actually paid 14.74% on the dutiable value in 2026-06 — the trade-war overlay added 10.8 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 4.66% (2023-07) → 14.74% (2026-06), largest single step -7.7pp in 2026-03.
Vietnam's lower duty (14.62% vs 34.2%) lets it price up to 17.1% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $8.64/kg vs $9.9/kg (duty in, freight out).
All goods from Vietnam · the whole tariff ledger · reproduce: tariff_story(hs: "9405.42", origin: "Vietnam") via /connect. Not customs or legal advice.