Switching passenger vehicles sourcing from Mexico to South Korea

A passenger vehicles importer's margin increasingly turns on a single field on the entry: country of origin. At 27.5%, Mexico sits well above South Korea's 15%; on $100,000 of annual buying that difference is around $13,187. Two suppliers can quote the same factory price and still land at very different costs once Customs is done. What follows is the layer-by-layer comparison, the trade context behind each rate, and how the gap grows with volume.

How the tariff stacks compare

Consider what each country's goods actually face at the border. Sourced from Mexico, the goods face a 2.5% Most-Favoured-Nation base duty and a 25% Section 232 measure on its passenger vehicles, an effective 27.5% once the $49.74 in processing fees are added. South Korea-made goods carry a 2.5% Most-Favoured-Nation base duty and a 12.5% Section 232 measure on its passenger vehicles, an effective 15% once the $49.74 in processing fees are added. Section 232 is not the same on both sides here: Mexico is charged 25% and South Korea 12.5%, so this layer is part of the gap. Two charges are origin-blind — the MPF and HMF, together $49.74 on this entry — which is why the entire difference lives in the duty layers. That leaves a $1,318.75 gap on every $10,000 of goods, driven entirely by the 12.5% spread in effective duty rate. That same per-dollar gap is about $3,297 on a $25,000 order and $13,187 on $100,000 of annual volume. Per $25,000 order, $3,297 separates the two origins — small per shipment, compounding fast across a program.

Trade context

The category, HTS 8703, takes in Sedans, SUVs, Minivans, Electric vehicles, Luxury cars, Pickup trucks, and Crossovers among other passenger vehicles. For passenger vehicles, where buyers reorder frequently, the duty rate compounds into one of the largest controllable costs on the P&L. At the full 25% rate, Section 232 auto tariffs add thousands of dollars to imported vehicle prices, with an estimated $3,000-$10,000 impact depending on vehicle value. Japan, the EU and South Korea pay a 15% total that includes the MFN rate, so their Section 232 share is smaller. Mexico, in North America, ships the US mainly passenger vehicles, auto parts components, and consumer electronics. Through USMCA, qualifying Mexico passenger vehicles can get the USMCA rate in place of MFN, yet the 25% Section 232 duty survives the claim, because the tariff schedule collects it in addition to any special rate. South Korea's trade profile leans toward consumer electronics, passenger vehicles, and steel iron products, and it sits in Asia-Pacific. South Korea's bilateral deal sets a fixed rate on passenger vehicles, a structurally different stack from origins without one. Spanning North America and Asia-Pacific, the two lanes differ in freight and transit, so weigh those against the duty saving. The recommendation is filtered to feasible suppliers, so South Korea appears because it plausibly makes passenger vehicles, not merely because its rate is low. With the US running its highest average tariff in decades, concentrated exposure to one high-duty origin is now a measurable annual cost rather than an abstract risk.

Recommendation

Where South Korea is a viable supplier, expect roughly $13,187 at $100,000, rising to about $32,969 at $250,000 and $131,875 at $1,000,000 as volume grows. All values are calculated, not assumed — the engine applies the current published rates to identical goods and reports the 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. If any price premium from South Korea is smaller than the duty saving, the switch still wins on net landed cost. Before acting, confirm the South Korea supplier classifies under the same HTS heading, can meet your volume and certifications, and faces no product-specific exclusion or quota that shifts the duty. Re-run the figures close to your decision: the duty landscape for passenger vehicles has shifted repeatedly through the year. Open the Tariff Savings Finder to rank every feasible origin for your specific volume.