Customs Duty Calculator

Landing goods in the United States by ocean freight triggers three separate charges on top of the CIF (Cost, Insurance, Freight) value, and this calculator adds them up individually rather than treating "duty" as one number. The core import duty is simply the CIF value times your product's tariff rate from the Harmonized Tariff Schedule — unless you mark the shipment as Free Trade Agreement eligible, in which case the calculator zeroes out that duty entirely, reflecting how FTA-qualifying goods enter duty-free. On top of that, every formal entry pays a Merchandise Processing Fee (MPF) under CBP's regulation at 19 CFR 24.23, calculated here at the standard 0.3464% of CIF value but clamped between a $29.66 floor and a $538.40 ceiling (the base amounts are CPI-adjusted each fiscal year) — so very small shipments pay the minimum flat fee and very large ones are capped rather than paying an unbounded percentage. Ocean shipments additionally owe a Harbor Maintenance Fee (HMF), set by statute at 26 U.S.C. §4461 at 0.125% of CIF value, uncapped, which funds U.S. port and harbor upkeep.

Total Duties & Fees sums all three, and Landed Cost adds that total back onto the CIF value to show the true all-in cost of the goods once they clear customs. Note that FTA eligibility only zeroes out the underlying duty line — MPF and HMF still apply regardless of trade agreement status, a distinction that catches importers off guard. This tool uses the current standard MPF and HMF percentages and fee caps, but actual applicable rates depend on correct HTS classification; misclassifying a product is a common and costly mistake, so always verify tariff classification with a licensed customs broker before relying on the duty rate you've entered.