Importers of HS 4015.19 (seamless) from Indonesia actually paid 12.36% on the taxed portion of the value in 2026-06 — 12.36% 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 4.08% → 12.36%, with the largest single step +6.9pp in 2025-06. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 3% — importers actually paid 12.36%, so the trade-war overlay added 9.4 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "4015.19", origin: "Indonesia") · see it at trimtabist.com/tariffs
HS 4015.19. The schedule base rate is 3%; importers from Indonesia actually paid 12.36% on the dutiable value in 2026-06 — the trade-war overlay added 9.4 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 4.08% (2023-07) → 12.36% (2026-06), largest single step +6.9pp in 2025-06.
Indonesia's lower duty (12.36% vs 38.04%) lets it price up to 22.9% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, Indonesia actually lands cheaper — $3.43/kg vs $3.53/kg (duty in, freight out).
All goods from Indonesia · the whole tariff ledger · 2 CBP rulings cite this code · reproduce: tariff_story(hs: "4015.19", origin: "Indonesia") via /connect. Not customs or legal advice.