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Calculators
Each calculator deals fresh numbers on a real HTSUS 2026 line, gives you three minutes and four choices, then shows every step with the citation. The money math is done in whole cents, so the answers match what a careful hand calculation gets.
Ad valorem duty
A percentage of the dutiable value, after taking international freight and insurance out of a CIF price.
Specific duty
A fixed amount per kilogram, liter, dozen, pair or unit.
Compound duty
A specific amount plus a percentage, both from the same rate.
Merchandise processing fee
0.3464% of value, then held between the fiscal-year minimum and maximum.
Harbor maintenance fee
0.125% of the value of cargo unloaded from a vessel at a covered port.
Currency conversion
Convert at the certified rate for the date of exportation, then apply the duty rate.
Transaction value
Price actually paid, plus the 152.103(b) additions, minus international freight and insurance.
Drawback
Up to 99% of the duties paid on merchandise that is exported or destroyed.
Fees use fiscal year fiscal year 2027 (October 1, 2026 to September 30, 2027): MPF 0.3464%, minimum $34.58, maximum $670.86 (CBP Dec. 26-14, 91 FR 48398 (July 31, 2026)). 19 CFR 24.23 as printed in the 2025 edition still shows the base amounts of $25.00 and $485.00; CBP adjusts them each year.