Importers of HS 8607.99 (for vehicles of heading 8605 or 8606, except brake regulator) from Japan actually paid 22.75% on the taxed portion of the value in 2026-06 — 22.75% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 2.8%. Over the window the rate on the taxed portion moved 3.1% → 22.75%, with the largest single step +31.3pp in 2025-09. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 2.8% — importers actually paid 22.75%, so the trade-war overlay added 19.9 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8607.99", origin: "Japan") · see it at trimtabist.com/tariffs
HS 8607.99. The schedule base rate is 2.8%; importers from Japan actually paid 22.75% on the dutiable value in 2026-06 — the trade-war overlay added 19.9 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 3.1% (2023-07) → 22.75% (2026-06), largest single step +31.3pp in 2025-09.
Japan's lower duty (22.75% vs 34.45%) lets it price up to 9.5% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $6.92/kg vs $26.85/kg (duty in, freight out).
12 Chapter-99 measures name Japan; scope mapping is partial (several annexes are PDFs) — absence never means exemption. They do not sum, and some are product-specific — the collected rate above is the composed truth.
All goods from Japan · the whole tariff ledger · reproduce: tariff_story(hs: "8607.99", origin: "Japan") via /connect. Not customs or legal advice.