Customs Fees Calculator: Estimate US Import Fees Before You Ship
Estimate US customs fees including duty, MPF, HMF, bond cost, and broker-related line items before an import shipment reaches CBP.
Customs fees are more than one tariff rate
Most importers search for a customs fees calculator after discovering that the invoice value is not the final landed cost. US import cost can include the HTS duty rate, China-specific Section 301 duties, Merchandise Processing Fee, Harbor Maintenance Fee, bond cost, broker fees, and delivery charges after customs release.
Use the TariffCheck calculator when you need the full tariff stack. Use the checklist below when you want to understand which fees belong in the estimate before you submit an entry.
What a customs fees calculator should include
| Fee | When it applies | Typical calculation |
|---|---|---|
| HTS duty | Most dutiable goods | Product value times HTS rate |
| Section 301 | China-origin goods on covered HTS lines | Additional percentage on entered value |
| MPF | Most formal entries | 0.3464% with FY 2026 min/max |
| HMF | Covered ocean imports | 0.125% of merchandise value |
| Customs bond | Formal entries without an existing bond | Single-entry or continuous bond pricing |
| Broker/admin fees | If a broker or carrier files for you | Flat service charge |
Quick workflow
- Identify the HTS code for the product.
- Confirm the country of origin, not just the shipping country.
- Enter the merchandise value and shipping mode.
- Add MPF for formal entries.
- Add HMF for ocean shipments.
- Add bond and broker costs when they apply.
When to use the full calculator
Use the full calculator if your shipment involves China origin, multiple product categories, uncertain HTS classification, or formal-entry costs. A static fee table is enough for simple MPF or HMF math, but it is not enough for tariff stacking.
Are customs fees the same as import duty?
No. Import duty is one part of customs cost. Customs fees can also include MPF, HMF, bond cost, broker fees, and trade-remedy duties such as Section 301.
Does a customs fees calculator replace a broker?
No. It is a planning tool. Use it to estimate cost before quoting or ordering inventory, then confirm the final entry treatment with your broker or CBP guidance.