The independent observatory for US trade — ship movements,
customs records and policy events, measured and tested.
What United Kingdom actually pays on HS 8703.40
Importers of HS 8703.40 (other vehicles, with both spark-ignition internal combustion) from United Kingdom actually paid 10% on the taxed portion of the value in 2026-06 — 10% 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% → 10%, with the largest single step +25pp in 2025-04. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 2.5% — importers actually paid 10%, so the trade-war overlay added 7.5 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8703.40", origin: "United Kingdom") · see it at trimtabist.com/tariffs
HS 8703.40. The schedule base rate is
2.5%; importers from United Kingdom actually paid 10% on the
dutiable value in 2026-06 — the trade-war overlay added 7.5 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 2.5% (2023-07) → 10% (2026-06), largest single step +25pp in 2025-04.
The trade-war measures that name United Kingdom or this sector
15 Chapter-99 measures name United Kingdom; 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.
Notice of Implementation of Additional Duties on Products of India Pursuant to the President's Executive Order measure 9903.01.84 · Federal Register citation+25%
9903.40.05 measure 9903.40.05+25%
9903.40.10 measure 9903.40.10+25%
Amending the Procedures To Administer Import Adjustment Offset Amounts for Certain Imports of Automobile Parts measure 9903.74.08 · Federal Register citation+25%
Implementing Certain Tariff-Related Elements of the U.S.-Korea Strategic Trade and Investment Deal measure 9903.76.02 · Federal Register citation+25%
Implementing Certain Tariff-Related Elements of the U.S.-Korea Strategic Trade and Investment Deal measure 9903.76.03 · Federal Register citation+25%
Procedures for Submissions by Certain Steel and Aluminum Producers Committing to New U.S. Steel or Aluminum… measure 9903.82.04 · Federal Register citation+25%
Notice of Determination and Action Pursuant to Section 301: Enforcement of U.S. WTO Rights in Large Civil Airc measure 9903.89.10 · Federal Register citation+25%
In print: “What United Kingdom actually pays on HS 8703.40 (HS 8703.40)” —
Trimtab US Trade Ledger (TT-010 Duty receipts), US Census imports-for-consumption records — trimtabist.com/tariff/870340/united-kingdom