Section 301 Tariff Calculator — China Import Tariff Estimator
Estimate Section 301 additional tariffs on goods imported from China. Calculate the additional duty impact on your landed cost alongside standard MFN rates.
🌐 Section 301 Tariff Calculator
How to Use This Calculator
- Enter customs value — FOB value of the China-origin goods.
- Enter MFN duty rate — standard rate from the HTS database at hts.usitc.gov.
- Select Section 301 rate — based on your product's list assignment. When in doubt, consult a customs broker.
Worked Example
$50,000 of industrial machinery (3% MFN duty) from China, subject to 25% Section 301, via ocean.
- MFN duty: $50,000 × 3% = $1,500
- Section 301: $50,000 × 25% = $12,500
- MPF: $50,000 × 0.3464% = $173 (capped at $614)
- HMF: $50,000 × 0.125% = $62.50
- Total: $14,235.50 (28.5% effective rate)
Frequently Asked Questions
Section 301 tariffs are additional US duties imposed on Chinese goods under Section 301 of the Trade Act of 1974, first enacted in 2018 under the Trump administration and largely maintained and expanded since. They apply on top of standard MFN duty rates and vary from 7.5% to 145% depending on product category.
Check CBP.gov or the USTR website for current Section 301 lists. Search by your 10-digit HTS code. Each list (1, 2, 3, 4A, 4B) has different rates. Some products have exclusions — check for active exclusions before paying the full rate.
Yes — rates have been adjusted multiple times since 2018. They can be increased, decreased, or paused by executive action. Always verify the current rate at CBP.gov or with a licensed customs broker before finalizing import costs.