Import duty is a tax levied by the importing country on goods entering from abroad, usually as a percentage (ad valorem) of the customs value. Rates vary by commodity HS code and country of origin.

What customs value should I use?

Most countries use CIF customs value (goods + international freight + insurance). The US uses FOB value. Use the Customs Value Calculator to compute your CIF customs value before applying the duty rate.

How do I find the correct duty rate?

Duty rates are in the importing country's tariff schedule, indexed by HS code. Check WTO Tariff Download Facility, EU TARIC, or national customs authority tariff tools for your commodity code.

Do free trade agreements reduce import duty?

Yes. Under applicable FTAs, goods from qualifying origin countries may attract reduced or zero preferential rates. A certificate of origin is typically required to claim preferential rates.

Are there other charges on top of duty?

Yes. In addition to import duty, shipments may incur VAT or GST on the duty-inclusive value, anti-dumping or countervailing duties, excise duties, and customs broker fees. Use the Duties and Taxes Estimate Calculator to add VAT/GST.

Is this calculator suitable for customs declarations?

No. This is an estimate for planning and budgeting purposes only. Official customs duty is determined by national customs authorities. Always use a licensed customs broker for import declarations.

Import Duty Calculator

Enter customs value and duty rate to estimate import duty. Supports ad valorem (% of customs value) and fixed duty amounts. Planning estimate only — actual duty is determined by the customs authority based on HS code, country of origin and applicable trade agreements.

Enter customs value and applicable duty rate to estimate import duty. Use for budget planning only — actual duty is determined by customs authorities based on HS code, origin, and any applicable trade agreements.

Import budgetingDuty planningLanded cost estimateTrade compliance

Customs Value

Same currency as your duty rate applies to

Duty Basis

Duty Rate (%)

Ad valorem rate from your HS code tariff schedule

Formula

Import Duty = Customs Value × Duty Rate ÷ 100 | (ad valorem)

An ad valorem duty is calculated as a percentage of the customs value. Most import tariffs use this method. Some commodities attract specific duties (fixed per unit or per kg) or compound duties (ad valorem plus specific). The duty rate is found in the importing country's tariff schedule against the commodity HS code.

Worked Example

Electronics shipment: Customs value USD 10,000 · Duty rate 5%:

Import duty = USD 10,000 × 5% = USD 500

Total (goods + duty) = USD 10,000 + USD 500 = USD 10,500

In practice, the customs authority determines the dutiable value, which may differ from invoice value. Freight and insurance costs are typically included in CIF customs value. Use the Customs Value Calculator to compute CIF value before applying the duty rate.

FAQ

Frequently Asked Questions

Yes. In addition to standard ad valorem duties, imports may be subject to anti-dumping duties (on goods priced below market value), countervailing duties (offsetting export subsidies), safeguard duties (protecting domestic industries from import surges), excise duties on specific commodities (alcohol, tobacco, fuel), and VAT or GST on the duty-inclusive value. This calculator covers standard ad valorem duty only.

Use this in your workflow

Start by calculating CIF customs value with the Customs Value Calculator, apply the duty rate here, then add VAT/GST in the Duties and Taxes Estimate Calculator. Feed results into the Landed Cost per Unit Calculator for full import cost. Browse all Online Business Calculators.

When to use this calculator

→Budgeting import duty before placing a purchase order or requesting a landed cost
→Comparing duty exposure for different sourcing origins or trade agreement scenarios
→Checking a freight forwarder or broker duty estimate against your own calculation
→Modelling the landed cost impact of duty rate changes under tariff review scenarios

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