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
- Laptops (8471.30) and smartphones (8517.13) no longer show a 25% Section 301 China duty: these sit on List 4B, which was suspended and never collected.
- Section 301 forced-labor rows (9903.05.20 / 9903.05.49) relabelled as representative 10% and 12.5% rates; the actual Chapter 99 number depends on the country of origin (USTR final action effective 24 July 2026).
- Context: IEEPA tariffs ended after the Supreme Court ruling of 20 Feb 2026; the temporary Section 122 10% surcharge expired on 24 July 2026; the de minimis exemption remains suspended for all countries (CBP Dec. 26-12, effective 24 June 2026).
- Section 232 steel and aluminium rows corrected to 50%, the rate in force since 4 June 2025 (Presidential Proclamation of 3 June 2025). UK-origin goods remain at 25%; check origin before relying on the figure.
- 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 HTS database (October 2026 review). Stacked tariff logic (Section 301/232) is verified per CSMS #18-000409. Last integrity check: 2026-10-06.
Coverage check: PASS - no duplicate, malformed, or out-of-range entries.
How the composite US duty rate stacks
| Layer | Legal basis | Applies to | Where to verify |
|---|---|---|---|
| 1. General (Column 1) rate | HTSUS Chapters 1 to 97 | Every import, unless a free trade agreement or preference programme applies | USITC HTS |
| 2. Section 301 additional duty | Trade Act of 1974, USTR actions | Products of China on the USTR lists, by HTS code | USTR notices; HTS Chapter 99, subchapter III |
| 3. Section 232 additional duty | Trade Expansion Act of 1962, presidential proclamations | Steel, aluminium and other covered products and derivatives, by HTS code | Proclamations; HTS Chapter 99, subchapter III; CBP guidance |
| 4. Other Chapter 99 duties | Other orders in force, for example Section 122 surcharges (IEEPA tariffs ended Feb 2026) | Depends on the order, often by country of origin | HTS Chapter 99; CBP CSMS messages |
| 5. Antidumping / countervailing duty | Tariff Act of 1930, Commerce and USITC orders | Specific product, country and often manufacturer, deposit rate per case | Commerce ADCVD case pages; CBP ACE |
| Fees (not duties): MPF, HMF | 19 CFR 24.23 and 24.24 | MPF on most formal entries; HMF on ocean shipments | CBP user fee notices |
Each duty percentage is normally applied to the customs value (transaction value, which for the US excludes international freight and insurance) and the layers are added together. Additional duty rates change often; this tool's rate table was last checked 2026-10-06. Confirm every layer against the current HTS revision and CBP guidance before entry.
Numerical Example: Worked import example: lithium-ion EV batteries from China
Rates are taken from this tool's rate table for illustration, not a ruling. Add any other Chapter 99 duty in force for the origin, then MPF (ad valorem with a minimum and maximum, set each CBP fiscal year) and, for ocean freight, HMF at 0.125% of value. Check the current HTS and CBP notices before entry.
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Frequently asked questions
What is the HTS (Harmonized Tariff Schedule)?
The HTS is the US version of the HS classification system, used to determine duty rates for all imports. It's a 10-digit code: first 6 digits are harmonized globally, digits 7–10 are US-specific. Each code has an associated duty rate (ad valorem or specific), quota, or exemption.
How do I find the right HTS code?
Start with a product description (e.g., 'aluminum tubes'). Search by keyword in this tool or in CBP's online database. Use the General Rules of Interpretation (GRI 1–6) to classify if uncertain. When in doubt, request a Binding Tariff Information (BTI) ruling from CBP.
What happens if I use the wrong HTS code?
CBP may reclassify and bill additional duties retroactively, plus interest and penalties. Misclassification is a common audit finding. Keep detailed product documentation and be prepared to justify your HTS selection if CBP challenges it.