Import Tariff Calculator

Tariffs went from a trade-policy footnote to a line item on everyone's invoices. Between longstanding HTS duty rates, Section 301 tariffs on Chinese goods, and the waves of IEEPA and sectoral tariffs layered on since 2025, the total rate on a single product can stack well past 25% — and the de minimis exemption that once let sub-$800 shipments in duty-free is gone, so even small e-commerce orders now clear customs the hard way. Duty is only part of the bill: US Customs also collects a Merchandise Processing Fee of 0.3464% of customs value (with a floor and ceiling that adjust each fiscal year) and a 0.125% Harbor Maintenance Fee on ocean freight. This calculator turns all of that into one number that actually matters — landed cost. Enter your goods value, combined duty rate, and freight, and it returns the duty, each fee, the total landed cost, and the cost multiplier to apply to your unit pricing.

Pricing off the supplier invoice instead of landed cost is how importers quietly lose their margin. A 25% tariff doesn't mean prices rise 25% — it means your cost of goods rises 25% before freight and fees, which flows through differently depending on your markup structure. For small importers, the end of de minimis changed the game entirely: a $300 product order that used to arrive untouched now generates duty plus a minimum MPF, which can add 15–30% to small shipments. Knowing the real multiplier before you order determines whether a product is still viable, whether to consolidate shipments to dilute fixed fees, and whether a supplier in a different country beats the tariff differential.

US duty applies to the customs value of the goods — unlike most countries, the US doesn't tax the freight and insurance for standard valuations. The MPF is 0.3464% of value, no less than the annual minimum and no more than the maximum (about $33.58 and $651.50 for FY2026 — editable in the calculator). The HMF adds 0.125% on ocean shipments only; air and land freight skip it. Your duty rate is the sum of the normal HTS rate plus any Section 301, IEEPA, or antidumping tariffs that apply to your product and country of origin.

1. Find your total duty rate. Look up your product's HTS code at hts.usitc.gov for the base rate, then add any Section 301 or country-specific tariffs. When in doubt, ask your customs broker — the stacked rate is what goes in the calculator.
2. Enter the customs value. Generally the price paid to the supplier (the commercial invoice value), excluding international freight and insurance.
3. Add freight separately. Freight isn't dutiable for US imports but is very much part of landed cost — enter it so the total reflects reality.
4. Mark ocean or air. Ocean shipments pay the 0.125% Harbor Maintenance Fee; air shipments don't (but usually cost more in freight).
5. Use the multiplier. Divide landed cost by goods value. That multiplier — often 1.3× or more — is what your unit economics must absorb.

• Using only the HTS base rate. Section 301, IEEPA, and antidumping duties stack on top — the real rate on some Chinese-origin goods runs several times the base rate.
• Assuming sub-$800 orders are still duty-free. The de minimis exemption ended; small parcels now face duty and fees, often collected by the carrier with a brokerage charge on top.
• Confusing country of shipment with country of origin. Duty follows where goods were substantially made — routing Chinese goods through a third country doesn't change the rate and can constitute fraud.
• Pricing off the supplier invoice. Landed cost is the number your margin lives on; ignoring duty and fees overstates profit on every unit.
• Forgetting brokerage and bond costs. Customs broker fees, bonds, and ISF filing charges aren't government fees but belong in your true landed cost.

• Classify carefully — HTS codes a few lines apart can carry very different rates, and misclassification risks penalties. A broker's opinion is cheap insurance.
• Check for exclusions: some Section 301 tariff lines have active exclusion lists that temporarily zero out the extra duty.
• First-sale valuation, foreign-trade zones, and duty drawback (refunds on re-exported goods) are legitimate structures that reduce duty for qualifying importers.
• Model supplier alternatives with real stacked rates — a 10% more expensive supplier in a lower-tariff country often wins after duty.
• Rates change fast under the current trade regime; re-run the numbers before each major order rather than assuming last quarter's rate.

Every import decision reduces to one number: landed cost per unit. Duty, MPF, HMF, and freight are all knowable in advance, and the multiplier they produce — routinely 1.2× to 1.4× in the current tariff environment — belongs in your pricing before you order, not as a surprise at customs. Run the calculation per shipment; the rates move often enough that yesterday's math expires.

• Markup Calculator — set prices from your landed cost
• Profit Margin Calculator — check what margin survives after duty
• Sales Tax Calculator — domestic tax comes on top of landed cost
• Break-Even Calculator — find your viable price point

• USITC — Harmonized Tariff Schedule (usitc.gov) — Official duty rate lookup by product
• CBP — Trade fee information (cbp.gov) — Official import basics, fees, and entry rules