The independent observatory for US trade — ship movements,
customs records and policy events, measured and tested.
What Canada actually pays on HS 8503.00
Importers of HS 8503.00 (other) from Canada actually paid 25.86% on the taxed portion of the value in 2026-06 — 16.35% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 3%. Over the window the rate on the taxed portion moved 3.33% → 25.86%, with the largest single step -23.1pp in 2026-04. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 3% — importers actually paid 25.86%, so the trade-war overlay added 22.9 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8503.00", origin: "Canada") · see it at trimtabist.com/tariffs
HS 8503.00. The schedule base rate is
3%; importers from Canada actually paid 25.86% on the
dutiable value in 2026-06 — the trade-war overlay added 22.9 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 3.33% (2023-07) → 25.86% (2026-06), largest single step -23.1pp in 2026-04.
The trade-war measures that name Canada or this sector
9 Chapter-99 measures name Canada; 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.
9903.01.16 measure 9903.01.16+40%
Notice of Implementation of Additional Duties on Products of Canada Pursuant to the President's Executive Orde measure 9903.01.10 · Federal Register citation+35%
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%
9903.79.01 measure 9903.79.01+25%
9903.05.30 measure 9903.05.30+12.5%
Notice of Implementation of Additional Duties on Products of Canada Pursuant to the President's Executive Orde measure 9903.01.13 · Federal Register citation+10%
Amendment to Notice of Implementation of Additional Duties on Products of Canada Pursuant to the President's… measure 9903.01.15 · Federal Register citation+10%
Implementation of Additional Duties on Products of the People's Republic of China Pursuant to the President's… measure 9903.01.20 · Federal Register citation+10%
In print: “What Canada actually pays on HS 8503.00 (HS 8503.00)” —
Trimtab US Trade Ledger (TT-010 Duty receipts), US Census imports-for-consumption records — trimtabist.com/tariff/850300/canada