Importers of HS 8408.20 (to be installed in vehicles of subheading 8701.21, 8701.22, ) from Mexico actually paid 5.15% on the taxed portion of the value in 2026-06 — 4.76% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 2.5%. Over the window the rate on the taxed portion moved 2.5% → 5.15%, with the largest single step -27.1pp in 2025-09. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 2.5% — importers actually paid 5.15%, so the trade-war overlay added 2.7 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8408.20", origin: "Mexico") · see it at trimtabist.com/tariffs
HS 8408.20. The schedule base rate is 2.5%; importers from Mexico actually paid 5.15% on the dutiable value in 2026-06 — the trade-war overlay added 2.7 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 2.5% (2023-07) → 5.15% (2026-06), largest single step -27.1pp in 2025-09.
5 Chapter-99 measures name Mexico; 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 Mexico · the whole tariff ledger · reproduce: tariff_story(hs: "8408.20", origin: "Mexico") via /connect. Not customs or legal advice.