Free MPF & HMF Calculator
Invoice × Tariff editorial
MPF (Merchandise Processing Fee) = 0.3464% of customs value, clamped to a fiscal-year minimum and maximum — $33.58–$651.50 (FY2026) / $34.58–$670.86 (FY2027). HMF (Harbor Maintenance Fee) = 0.125%, sea freight only, no cap. Enter a declared value below: the tool picks the fee schedule from your entry date and names which limit binds. For the full rules and exemptions, read the MPF & HMF fees guide.
MPF & HMF calculator
Fees only — no duties. Rates are read live from the engine fee schedule (FY2026: CBP CSMS #65741993 · FY2027: 91 FR 48398), so the fiscal-year switch is automatic.
Optional — empty means the latest schedule (FY2027). An entry filed Sep 30 pays FY2026 fees; Oct 1 pays FY2027.
Quick scenarios
Enter a declared value to see the fee lines — or tap a quick scenario above to see the minimum clamp, the informal tier, the ad-valorem case and the HMF cap walk through.
Schedule FY2027: valid 2026-10-01 – 2027-09-30 · MPF 0.3464% (min $34.58 / max $670.86) · HMF 0.125% · source: FY2027 MPF min/max（91 FR 48398，2026-07-31 刊出，2026-09-27 核实；informalTiers 沿用 FY2026 口径未单独核实） · per entry
MPF — the merchandise processing fee formula
MPF = customs value × 0.3464%, then clamped to the fiscal-year minimum and maximum — the result panel always names which of the three applies to your value (minimum, ad valorem, or maximum), so the clamp is never hidden inside one number. It is charged once per formal entry — not per line item, not per container. Postal entries up to $2,500 skip this math entirely and pay the fixed informal-entry tiers instead; the calculator switches to them automatically.
HMF — the harbor maintenance fee formula
HMF = customs value × 0.125% with no minimum and no maximum, charged only when cargo arrives by vessel. Air, courier and postal shipments owe $0 HMF — switch the transport mode above and the line disappears. There is no informal tier and no origin-based exemption for HMF; the fiscal-year fee schedule never changes the 0.125% rate, only the MPF floor and ceiling move.
How this calculator works
- Basis: the customs (declared) value of the goods — not the invoice total with freight or insurance added.
- Schedule: your entry date picks the fiscal-year fee schedule; the tool reads the same fee table the tariff calculator uses.
- Clamp: instead of one opaque number, the result names whether the minimum, the 0.3464% rate, or the maximum binds — and what the unclamped math would have been.
- Scope: border fees only. For the full stack — MFN + Section 301 + Section 232 + fees per unit — use the tariff or landed cost calculator.
FAQ
What value do I enter for MPF and HMF?
The customs value of the goods — the price actually paid or payable as declared at entry. International freight, insurance and other landed-cost components are not part of the fee basis; if your invoice bundles freight into the total, back it out before entering the value.
Is MPF charged on freight or shipping costs?
No. Both MPF and HMF are ad valorem on the customs value of the goods only — freight never enters the fee basis. A $10,000 entry shipped with $4,000 of air freight still pays MPF on $10,000.
Do air shipments pay HMF?
No. HMF applies only to cargo arriving by vessel (26 U.S.C. §4461). Select “Sea freight” in the calculator and the HMF line appears; switch to air, courier or postal and it drops to zero.
Does this calculator include duties and tariffs?
No — this page computes border fees only (MPF, HMF and the informal entry fee). Duties depend on your HTS code and origin: use the tariff calculator for the full MFN + Section 301/232 stack, or the landed cost calculator to spread duties, fees and freight across units.
Keep reading
Chỉ là ước tính. Không phải tư vấn hải quan, thuế hay pháp lý. Thuế thực phải nộp do Hải quan và Bảo vệ Biên giới Mỹ (CBP) quyết định.