Customs Duty Calculator USA — HTS Duty, Tariffs, MPF, and HMF
Answer: A customs duty calculator for USA imports estimates customs value × confirmed HTS duty rate, then adds additional tariffs, MPF, HMF for ocean freight, and broker fees.
- Estimate only: confirm HTS classification, customs value, country of origin, additional tariffs, and entry type with live HTS/CBP data or a licensed customs broker.
- Duty-free Section 321 de minimis treatment is not modeled because CBP suspended duty-free de minimis treatment globally effective August 29, 2025.
A customs duty calculator for USA imports estimates customs value × confirmed HTS duty rate, then adds additional tariffs, MPF, HMF for ocean freight, and broker fees.
How the calculation works
This page is a USA-focused landed-cost variant for importers who already have a product description, country of origin, customs value, and a duty rate to test. It is not a legal advice tool, an HTS classifier, or a substitute for customs broker review. Use it to model scenarios before asking a broker to confirm the entry.
Use this page when the search phrase is “customs duty calculator USA” and the task is a USA-bound landed-cost scenario. The canonical broader calculator is the U.S. customs duty calculator; this variant keeps the same conservative duty model but emphasizes USA keyword wording, post-2025 de minimis treatment, and import-planning line items.
The estimator separates each line because U.S. import cost is rarely just one duty percentage:
| Line item | Formula used |
|---|---|
| HTS duty | customs value × HTS duty rate |
| Additional tariff | customs value × additional tariff rate |
| Formal-entry MPF | customs value × 0.3464%, subject to FY2026 minimum and maximum |
| Informal-entry MPF | Automated informal-entry fee estimate |
| Ocean HMF | customs value × 0.125% |
| Total planning estimate | HTS duty + additional tariff + MPF + HMF + broker fee |
Important: this calculator does not include a duty-free Section 321 mode. CBP suspended duty-free de minimis treatment globally effective August 29, 2025, so low-value shipments should be reviewed for the correct entry path, duty, taxes, and fees instead of being treated as automatically duty free.
FAQ
Is this customs duty calculator USA result final?
No. The result is an estimate for planning. Final U.S. customs charges depend on live HTS classification, country of origin, valuation, entry type, trade-remedy measures, exclusions, PGA requirements, and CBP liquidation. Confirm with a licensed customs broker before importing.
What should I enter as customs value?
Enter the value used for U.S. customs duty planning, normally starting from the transaction value of the merchandise sold for export to the United States. Assists, royalties, related-party pricing, packing, and valuation adjustments can change the correct customs value.
How do I find the HTS duty rate for the USA?
Search the current Harmonized Tariff Schedule for the most specific product subheading, then review the General, Special, and Column 2 rates plus notes. If the product could fit more than one classification, request broker review or a binding ruling instead of guessing.
Why does this calculator separate additional tariffs?
Additional tariffs can apply on top of the base HTS duty rate. Common examples include Section 301 tariffs, Section 232 tariffs, antidumping or countervailing duties, and other trade-remedy measures. Keeping them separate makes the estimate easier to audit.
Why is there no duty-free de minimis option?
As of August 29, 2025, CBP suspended duty-free de minimis treatment globally for imported goods from all countries. That means low-value e-commerce parcels should not be modeled as automatically duty free in a 2026 customs duty calculator.
What is MPF in a USA customs estimate?
MPF is the Merchandise Processing Fee. For FY2026 formal entries, this estimator uses 0.3464% of customs value with a $33.58 minimum and $651.50 maximum. Informal entries use an automated informal-entry estimate, but the actual filing path must be confirmed.
What is HMF and when does it apply?
HMF is the Harbor Maintenance Fee. This calculator applies HMF at 0.125% of customs value only when transport mode is ocean. It is not added for air, truck, rail, or mail mode in this tool.
Can Amazon FBA sellers use this calculator?
Yes, for planning landed import charges before shipping inventory to the United States. Amazon generally will not act as importer of record, so FBA sellers still need a compliant importer-of-record setup, customs broker, and confirmed HTS/origin treatment.
What is different from the U.S. Customs Duty Calculator page?
The U.S. Customs Duty Calculator is the canonical broader calculator. This page is retained as a USA keyword-variant page for searchers who use “customs duty calculator USA” wording and need the same conservative model explained through post-2025 de minimis, MPF, HMF, broker-fee, and landed-cost planning language.
Comparison
| Scenario | Best input choice | What the calculator estimates | What still needs review |
|---|---|---|---|
| Ocean import over $2,500 | Formal entry, ocean mode, MPF on, HMF on | HTS duty, added tariffs, formal MPF, HMF, broker fee | HTS code, origin, value, AD/CVD, PGA flags |
| Air import over $2,500 | Formal entry, air mode, MPF on, HMF on or off | HTS duty, added tariffs, formal MPF, no HMF | Air entry requirements, product restrictions, broker fees |
| Low-value commercial parcel | Informal entry, parcel mode, MPF on | HTS duty, added tariffs, informal MPF estimate | Correct post-de minimis entry path and carrier/broker handling |
| China-origin goods | Enter confirmed HTS rate plus additional tariff rate | Base duty plus possible Section 301/other tariff exposure | Live tariff list, exclusions, origin evidence |
| Duty-free HTS rate goods | Enter 0% HTS duty, keep MPF/HMF as applicable | Fees and additional tariffs if any | Preference-program eligibility, MPF exemption, origin documentation |
| AD/CVD-risk goods | Enter only broker-confirmed additional rate | Scenario estimate, not a case-scope decision | AD/CVD scope, exporter rate, cash deposit instructions |
Dated facts
As of May 2026, use these facts as planning assumptions and verify them against official sources before import:
- CBP suspended duty-free de minimis treatment globally effective August 29, 2025. Imported goods from all countries valued at or below $800 are no longer generally eligible for duty-free de minimis treatment.
- Non-postal low-value shipments must use an appropriate entry type in ACE by a qualified party and are subject to applicable duties, taxes, and fees.
- For FY2026, formal-entry MPF is modeled here at 0.3464% of customs value with a $33.58 minimum and $651.50 maximum, effective for entries beginning October 1, 2025.
- HMF is modeled at 0.125% of commercial cargo value for ocean imports, with no minimum or maximum in this calculator.
- Many importers still need to test both base HTS duty and additional tariff exposure, especially for China-origin goods, steel and aluminum products, AD/CVD-covered goods, and products with partner-government-agency controls.
- CBP release does not guarantee the final duty amount; entries can be liquidated, reviewed, or corrected later if classification, value, origin, or duty treatment changes.
Related tools
- Use the U.S. customs duty calculator for the broader customs-duty keyword variant.
- Use the US import tax calculator to plan import-side tax and fee exposure.
- Use the DDP vs DAP calculator to decide who should carry duty and import clearance cost in a sales quote.
- Use the FBA shipping calculator when the customs estimate is part of an Amazon inbound landed-cost model.
Frequently asked questions
- What does this customs duty calculator USA page estimate?
- It estimates U.S. government import charges from customs value, an HTS duty rate, additional tariff rate, MPF, and HMF, then adds an optional broker fee for landed-cost planning.
- Does this tool choose the HTS code for me?
- No. It requires you to enter a duty rate after HTS classification has been checked. Classification, origin, valuation, and trade-remedy review must be confirmed with live HTS/CBP data or a licensed broker.
- Why is there no duty-free Section 321 option?
- CBP suspended duty-free de minimis treatment globally effective August 29, 2025, so this calculator does not model low-value parcels as automatically duty free.
- What is the difference between HTS duty and additional tariff?
- HTS duty is the base duty rate for the product classification. Additional tariffs are separate measures such as Section 301, Section 232, AD/CVD, or other duties that may apply on top of the base rate.
- When should I use formal entry instead of informal entry?
- Many commercial shipments valued at $2,500 or more are formal entries, and regulated products may require formal entry regardless of value. Broker review is the safest way to choose the entry type.
- Does this include ocean import fees?
- Yes. If transport mode is ocean and HMF is enabled, the calculator estimates Harbor Maintenance Fee at 0.125% of customs value.
- Can I use this estimate for a final customer quote?
- Use it as a planning number only. Final landed cost should be checked against the live HTS, CBP guidance, broker instructions, and any current tariff exclusions or enforcement changes.