ImportChecker

Import planning guide

How import VAT and GST work

Import VAT or GST is a consumption tax collected at or around importation. It is separate from customs duty and often uses a larger taxable base.

Official source links checked 5 August 2026.

Short answer

A common planning formula is import tax = tax rate × (customs value + customs duty + taxable incidental costs). The lawful base and rate depend on the destination, product and importer. A standard national rate is only a starting assumption.

Duty and tax answer different questions

Customs duty protects or manages trade in particular goods and is tied to classification and origin. VAT or GST taxes consumption and can apply even where the duty rate is zero. A free-trade agreement may reduce customs duty without removing import VAT or GST.

The United States is an important exception to the common VAT model: it has no federal import VAT or GST. CBP may still collect excise taxes and user fees, and state tax can arise outside the federal import calculation.

Build the tax base in the correct order

First establish customs value. Next calculate customs duty and any charge that the tax rules include. Then add transport, insurance, commission or other incidental costs required by the destination’s tax law. Apply the product’s VAT or GST rate to that tax base.

For a simple UK illustration, a £1,100 customs value and £55 duty produce a £1,155 VAT base before any further incidental expenses. At 20%, the illustrative VAT is £231. This calculation says nothing about whether the product qualifies for zero or reduced rating.

Do not assume the standard rate

Food, books, medical goods, children’s products and other categories may receive reduced, zero or exempt treatment in some jurisdictions. The categories are not consistent between countries. Product use and importer status can also matter.

  • Check the product-specific rate, not only a country’s headline rate.
  • Check whether the importer can defer or recover the tax.
  • Separate tax collected by a marketplace or seller from tax due at the border.
  • Confirm provincial or state consequences where the national system is not the whole answer.
  • Keep evidence for any relief, exemption or postponed-accounting treatment.

What the estimator can and cannot do

ImportChecker uses broad standard or import-specific rates where available. It can show the arithmetic and flag known gaps, but product-level VAT and GST mapping is incomplete. Treat a standard-rate result as a budget figure until the destination’s tax source confirms the treatment.

Official sources

Next step

Use the import duty calculator for an early estimate, then open the destination’s authority in the source register. Read the estimator limitations before making a buying decision.