Estimate-only China to USA import duty workflow for ecommerce shipments using customs value, candidate HS code, country of origin, base duty, Section 301 additional tariff input, and source-checked fees.
China to USA import duty depends on product classification, origin, customs value, base duty, and any product-and-origin-specific additional tariffs.
Use a candidate HS code as the starting point, then verify duty rate and verify additional tariffs in official sources before entering values.
MPF, HMF, tax, brokerage, handling, and carrier fees can be modeled as user-entered fields or source-check items rather than hard-coded universal rates.
Use a candidate HS code, verify duty rate, verify additional tariffs, verify tax/VAT/GST where applicable, and keep a source-check required note. The result is estimate-only and not a filing result.
| Input | How to prepare it |
|---|---|
| Customs value | Goods value and any additions required by the US valuation basis. Use the actual transaction records and source-check required notes. |
| Candidate HS code | Working HTS/HS candidate from product facts. Verify the full US HTS code before using the estimate. |
| Country of origin | China origin drives Section 301-style review when the verified HTS code is covered. |
| Base duty rate | User-entered rate from USITC HTS after product classification is verified. |
| Section 301 additional tariff input | Separate user-entered field for product-and-origin-specific additional tariffs after USTR/USITC source review. |
| MPF/HMF source-check items | Merchandise Processing Fee and Harbor Maintenance Fee may be relevant depending on entry type, transport mode, and shipment facts. |
| Tax and fees | Use editable tax, brokerage, handling, and carrier fee fields when applicable. |
Estimated import cost = customs value + base duty + additional tariffs + tax/fees + brokerage/handling. Base duty = customs value x verified base duty rate. Additional tariff = customs value x verified additional tariff rate.
Use the connected calculator as a preparation aid. Enter only source-checked rates and keep the official source note with the estimate.
Scenario: A seller imports China-origin ceramic mugs to the United States with customs value entered as USD 4,000. The seller has a candidate HS code, a verified base duty rate from USITC HTS, and a separate Section 301 additional tariff input after source review.
A wrong HTS code or origin can change both base duty and additional tariffs, so source-check required review comes before quoting or filing.
Written by the TariffCatalog Editorial Team for route-specific duty, landed cost, and DDP estimate preparation. The page uses the connected Import Duty or Landed Cost calculator within its coverage boundary, and source-check required review for rates outside that boundary.
Maintained by Ryan Cole, with review focused on ecommerce route assumptions, catalog inputs, and estimate-only calculation boundaries.
Within the coverage boundary, TariffCatalog auto-resolves duty rate, Section 301 additional tariff, MPF, and HMF from official tariff sources and the TariffResolver. Outside the coverage boundary or for complex scenarios, the page returns editable fields and prompts source-check required review. Each estimate is always marked estimate-only and not a filing result.
Use official sources for final classification, duty rate, additional tariff treatment, tax/VAT/GST where applicable, and document requirements. Route pages are estimate-only and not a filing result.
Use this official source for final classification, duty rate, additional tariff treatment, and document requirements.
CBPUse this official source for final classification, duty rate, additional tariff treatment, and document requirements.
EU TARICUse this official source for final classification, duty rate, additional tariff treatment, and document requirements.
UK Trade TariffUse this official source for final classification, duty rate, additional tariff treatment, and document requirements.
There is no single duty amount for every China-to-USA shipment. The estimate depends on the verified HTS code, country of origin, customs value, base duty, any product-and-origin-specific additional tariffs, and source-checked fees.
Threshold treatment is not a safe shortcut. Whether a shipment qualifies for a low-value or de minimis treatment depends on the current US rule, entry date, product, value basis, origin, and shipping channel. Check current CBP guidance before assuming that an order under a stated amount has no duty or filing requirements.
Customs value is the duty base used for the estimate. It usually starts from transaction value and may include additions depending on US valuation rules and shipment records.
Use a separate additional tariff field only after checking USTR and USITC references for the verified HTS code and China origin. Do not assume coverage from country alone.
MPF and HMF may be relevant source-check items depending on entry type, transport mode, and shipment facts. Enter them as verified user fields when applicable.
No. The output is estimate-only and not a filing result. Final treatment depends on official classification, origin, entry processing, and source-checked requirements.
Use product facts to prepare a candidate HS code, then verify the full US HTS code in USITC HTS and supporting notes before using the duty estimate.
Verify duty rate, verify additional tariffs, verify tax where applicable, and source-check required fees before filing or shipping.
TariffCatalog route pages provide estimate-only calculation support, candidate HS code workflows, and source-check required notes. They are not a filing result and do not replace official tariff databases, carrier requirements, or destination authority review.
