How are US import duties from Mexico calculated?

Start with the base MFN rate for the HTS code, then stack the trade-remedy tariffs that apply to Mexico. From Mexico, USMCA-qualifying goods may be duty-free with a valid claim; otherwise the base rate and current temporary import surcharge can apply, plus Section 232 on metals. The calculator estimates the stack for the code and value you enter.

Is there a free-trade agreement with Mexico?

Yes — USMCA. Qualifying goods can enter duty-free with a valid origin claim and documentation.

Mexico import duties

Mexico is a USMCA partner, so qualifying goods can enter at preferential rates — but only with a valid USMCA claim and origin documentation. Where USMCA or another exemption does not apply, the base MFN rate and current temporary import surcharge can apply, and Section 232 reaches Mexican steel, aluminum and copper articles.

USMCA preferenceTemporary import surchargeSection 232 (metals)