DutyCalc automatically calculates and displays estimated US import duties for your products at checkout, giving customers full duty transparency before they buy. Powered by the USTariffRates database covering 35,000+ HTS tariff codes with real-time rates. Shows base duty rates, Section 301 tariffs for China, Section 232 for steel and aluminum, reciprocal tariffs, and AD/CVD risk flags. Easy setup with HS code metafields and a clean checkout UI extension.

• Instant duty rate lookups across 35,000+ HTS tariff codes
• Full duty breakdown at checkout including base, Section 301, 232, and reciprocal
• Simple setup with HS code metafields and a usage tracking dashboard