Shopify duty setup

Shopify Duty Calculator Mismatch: What to Check

A practical checklist for Shopify merchants when checkout duties, carrier DDP labels, or landed-cost estimates do not match.

For Shopify, DTC, and cross-border ecommerce operators setting HS codes, country of origin, and duty collection for US orders.

Important: AI output requires professional review
Moya provides AI-assisted research for U.S. import workflows. Results are not a binding CBP ruling, legal advice, customs brokerage advice, or filing instruction. Verify HTS codes, duties, and compliance requirements with a licensed customs broker or official source before relying on them.

Why this needs a second pass

Duty calculators depend on product data. When Shopify, a carrier, Zonos-style duty estimate, supplier paperwork, or broker note disagrees, the problem is often an incomplete HS/HTS code, missing country of origin, valuation mismatch, or tariff signal that was not checked separately.

Product facts to collect

  • The HS or HTS code currently entered in Shopify or provided by the supplier.
  • Country of origin for each variant, not just the brand or fulfillment location.
  • Product value, shipping value, DDP/DAP setup, carrier, and destination country.
  • Product materials, function, packaging, kit/set details, and any affected variants.

What Moya checks

  • Confirm whether the code is a generic 6-digit HS code or a full US 10-digit HTS candidate.
  • Check whether country of origin and product value assumptions match the duty calculator setup.
  • Run a second pass on the US HTS path before trusting a surprising duty rate.
  • Surface tariff-program caveats and broker-prep questions before changing checkout settings.

Caveats before relying on the answer

  • Moya does not calculate or collect checkout duties and does not replace Shopify, Zonos, a carrier, or a broker.
  • Duty calculators can differ because of valuation, origin, tariff tables, carrier rules, or missing product data.
  • Use the result to prepare questions and verify assumptions before filing or changing customer-facing charges.

Example prompt

Shopify is showing a surprisingly high duty for US orders. Current code: 3304.99. Product: skincare set from Canada, country of origin CA, retail kit with serum and moisturizer. Check whether the US HTS path, origin, tariff exposure, and broker questions support this duty estimate.