Import duty estimate: Calculating Duty on an Entered Customs Value
Import duty applies an entered rate to the customs value. Define that value before calculating because it may differ from the item's purchase price.
Use the Import duty estimate Calculator to enter your own figures and compare the result with the worked example below.
Import duty estimate formula
Duty = Customs value × Duty rate
Worked example
| Item | Example value |
|---|---|
| Customs value | 10000 USD |
| Manual duty rate | 10 % |
| Import duty estimate | 1,000 USD |
These are illustrative inputs, not current prices, rates or recommended targets. Where a currency is shown, keep all comparable money amounts in the same currency; conversion examples identify the two sides separately.
How to interpret the result
Classification, origin and valuation rules determine the applicable treatment. Sales taxes, excise and clearance charges may be additional.
Related calculations
Method and further reading
The example follows the FinMathly calculator method. For broader background, see IRS: How its U.S. withholding estimator works. The background resource may use jurisdiction-specific terms; it does not replace the assumptions of this calculator.
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