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What does the Import duty estimate calculate?
What estimated duty follows from customs value and an entered rate? This calculator uses customs value of goods, freight included in customs value, applicable duty rate, and broker and customs fees to estimate user-rate duty estimate immediately in your browser.
With the values currently entered, the result is $1,018.50 — estimated duty and fixed fees. It also shows customs value used, and duty alone.
How to use the Import duty estimate
- Replace the example values with your own numbers.
- Review the result and supporting figures as they update automatically.
- Check the formula and assumptions before using the estimate for a decision.
Inputs used
- Customs value of goods
- Freight included in customs value
- Applicable duty rate — entered in %
- Broker and customs fees
Import duty estimate formula
(Goods value + included freight) × entered duty rate + fixed fees
Assumptions
- The entered customs base and rate match the product and destination.
- Preferential origin, exemptions, and import tax are excluded.
Verify the inputs
Authoritative sources
These sources explain the definitions, factors, or rules behind this tool. Their geographic scope is shown because an official source for one country is not automatically valid somewhere else.
Sources do not endorse Calculum. Check the source date, scope, and your own documents before making a financial, tax, insurance, or reporting decision.
Practical guide
Import duty estimate example and edge cases
What estimated duty follows from customs value and an entered rate? Let's use a concrete example, then look at the assumptions that can move the answer.
Example: A practical import duty estimate scenario
For this example, use customs value of goods of 12,000, freight included in customs value of 900, applicable duty rate of 6.5 %, and broker and customs fees of 180. These are starting values, so replace them with numbers that match your situation.
- Customs value of goods
- 12,000
- Freight included in customs value
- 900
- Applicable duty rate
- 6.5 %
- Broker and customs fees
- 180
Calculated result$1,018.50estimated duty and fixed fees
Start with estimated duty and fixed fees. Then check customs value used, and duty alone to understand what sits behind the main result.
Example results use the default display profile. The calculator above follows your selected country and units.
How to read the result
- Read the main result first. The supporting figures for customs value used, and duty alone explain how the estimate is built.
- The method is (Goods value + included freight) × entered duty rate + fixed fees. Keep the units consistent and use values from the same time period.
Edge cases worth checking
When customs value of goods is unusual
The entered customs base and rate match the product and destination. Double-check this input before relying on the result.
When broker and customs fees is uncertain
Preferential origin, exemptions, and import tax are excluded. Run a lower and higher value to see a useful range.
What changes the result most
Customs value of goods
Use a current amount for customs value of goods. Include fees or recurring costs that belong in the same figure.
Freight included in customs value
Use a current amount for freight included in customs value. Include fees or recurring costs that belong in the same figure.
Applicable duty rate
Test a lower and higher applicable duty rate. A small percentage change can move the final result more than expected.
Try a different scenario
Small changes show whether the answer is stable or sensitive.
Customs value of goods: 10% lower
10,800$940.50estimated duty and fixed fees
Customs value of goods: 10% higher
13,200$1,096.50estimated duty and fixed fees
Freight included in customs value: 10% higher
990$1,024.35estimated duty and fixed fees
Common mistakes
Check customs value of goods
The entered customs base and rate match the product and destination. Make sure this matches the number you enter.
Keep broker and customs fees consistent
Preferential origin, exemptions, and import tax are excluded. Use the same units and time period throughout the calculation.
Do not rely on one import duty estimate scenario
Run a cautious case and an optimistic case. The range is often more useful than one exact-looking number.
Use this result well
What estimated duty follows from customs value and an entered rate?
Carrier rules, dimensional divisors, customs decisions, and live quotes take priority.