US HTS Search & Stacked Tariff Finder
Calculate base MFN duty plus Section 301 (China) and Section 232 (Steel/Alu) tariffs.
Authority: USTR / USITC
Instrument: USTR-2026-0265 (Forced Labor Action)
Important Caveats
- Section 301 and 232 tariffs are additive to the base MFN rate.
- Stacking logic applied per CSMS #18-000409 and 19 CFR § 141.61.
Accuracy is verified against official sources but is provided for guidance only. Consult a licensed customs broker or legal counsel for binding classifications.
Indicative calculation for planning only. Verify against the applicable USTR / USITC notification in force on your shipment date before filing or contracting.
Section 301/232 Regulatory Notice
Calculations include current Section 301 (China) and Section 232 (Steel/Aluminum) tariffs. Please consult current USTR and CBP Federal Register notices for the latest enforcement actions and specific Chapter 99 exclusion rules.
Laptops, tablets, weighing not more than 10 kg
Change Log
- Integrated Section 301 Forced Labor Action (Notice USTR-2026-0265/0266).
- Imposed new 10% to 12.5% Section 301 duties across 60+ economies to combat forced labor imports.
- Established specific exemptions and netting rules for economies with Reciprocal Trade Agreements (ART).
- Updated Chapter 99 (9903.05.20 - 9903.05.57) to include stacking logic for new global forced labor tariffs.
- Synchronized smartphones, EVs, and semiconductor rates with the latest Presidentially directed actions.
- Updated base MFN rates for over 100 chapters based on USITC 2026 R15 schedule.
- Synchronized Section 301 China tariffs with latest USTR exclusions and extensions.
- Validated Section 232 Steel/Aluminum stacking logic for Chapter 72 and 73 items.
Data Validation Status
All HTS codes and rates in this tool are cross-validated against the official USITC 2026 R15 database. Stacked tariff logic (Section 301/232) is verified per CSMS #18-000409. Last integrity check: 2026-08-10.
Coverage check: PASS - no duplicate, malformed, or out-of-range entries.
Understanding Stacked Tariffs
Stacked tariffs occur when multiple trade enforcement actions apply to a single HTS code. For example, a laptop from China might have a base duty of 0% but a Section 301 duty of 7.5% or 25%. If the item contains significant steel or aluminum, a Section 232 duty may also apply.
Numerical Example: Stacked Duty Calculation (China Origin Laptop)
Even if the base rate is duty-free, trade enforcement actions can create a significant financial burden. These duties are calculated on the entered value (FOB) before MPF and HMF fees are applied.