Switching tires sourcing from Japan to Thailand

When tires crosses a US border, where it was made now decides a surprising share of what it costs. Japan carries roughly 19% in duties and fees against 14% for Thailand, a spread worth near $5,275 on $100,000 of annual volume. Where a competitor's margin erodes on the same tariff, a buyer who re-sources keeps the difference. Read on for the full stack comparison, the policy reasons behind the gap, and a scaling table for your own volume.

How the tariff stacks compare

The duty layers tell the whole story of the gap. Japan-made goods carry a 4% Most-Favoured-Nation base duty and a 15% negotiated bilateral rate on its tires, an effective 19% once the $49.74 in processing fees are added. Shipped out of Thailand, the product is hit with a 4% Most-Favoured-Nation base duty and a 10% Section 122 reciprocal surcharge on its tires, an effective 14% once the $49.74 in processing fees are added. Section 122 adds a reciprocal duty that one origin escapes via a bilateral deal — a meaningful but expiring factor in the current gap. The $49.74 in processing and harbor fees is the same on both sides, leaving the duty layers as the only mover of the gap. That leaves a $527.50 gap on every $10,000 of goods, driven entirely by the 5% spread in effective duty rate. Multiply across your volume and it is near $1,319 for $25,000 and about $5,275 for $100,000 a year. At order level, $25,000 of goods carries roughly $1,319 more duty from Japan than from Thailand.

Trade context

Within HTS 4011, 4012, 4013, tires includes Passenger car tires, Light truck tires, Commercial truck tires, and OTR tires. Because tires moves in volume, even a modest per-unit duty gap aggregates into a number that decides sourcing strategy. A Asia-Pacific supplier, Japan concentrates its US exports in passenger vehicles, auto parts components, and industrial machinery. For Japan, a negotiated bilateral rate stands in for Section 122, changing the math on tires entries. A Asia-Pacific supplier, Thailand concentrates its US exports in consumer electronics, auto parts components, and rubber. With no preferential deal in force, Thailand tires faces the standard rates plus any applicable surcharge. Because both sit in Asia-Pacific, a switch barely changes the freight picture and mostly changes the duty bill. Thailand is surfaced as a credible alternative, not just the cheapest line — it is among the origins a US buyer of tires could realistically qualify. Sourcing diversification has shifted from resilience theatre to margin necessity, and a documented second source like Thailand is how buyers act on it.

Recommendation

For $100,000 a year of tires, the move from Japan to Thailand is worth about $5,275, scaling to $2,638 at $50,000, $13,188 at $250,000, and $52,750 at $1,000,000. The numbers come straight from the landed-cost engine, with product cost and shipping fixed across both origins to isolate the tariff difference. These figures reflect tariff and fee savings only, assuming equal product cost — your actual landed cost also depends on price and freight, which vary by supplier. Treat the annual saving as the ceiling on switching cost: as long as moving to Thailand costs less than that, the change is accretive. Request parallel quotes from your Japan incumbent and a vetted Thailand source, then compare landed cost with the duty gap held constant. Re-run the figures close to your decision: the duty landscape for tires has shifted repeatedly through the year. Run your own volume — and a post-Section-122 view — through the interactive Tariff Savings Finder. One origin still carries the Section 122 surcharge, due to expire mid-2026; the ranking can shift once it lapses.