Import tariffs: what students need to know

Published July 13, 2026 · 2 min read

Import tariffs explained for students, with a worked example, a checklist and the mistakes to avoid.

Why this matters for students

Students often work part-time or seasonal jobs and may be due refunds they never claim. A little understanding goes a long way.

Worked example

Here is the calculation with sample figures. Change any number in the Tariff Calculator to run your own.

Import tariffs: how it works

A tariff is a duty charged on imported goods, usually a percentage of their customs value.

Tariffs change often and depend on product classification and origin.

A second example with larger figures

Scaling the inputs up shows how the result moves. Percentages stay the same, so the tax grows in proportion to the amount it is applied to.

Using the calculator step by step

1. Open the Tariff Calculator.
2. Enter your own figures on each numbered line.
3. Set the rate to the one that applies to you. Defaults are examples, not advice.
4. Read the result and the formula below it.

Key terms

Reduced rate

A lower rate that applies to specific categories, often essentials such as food, medicine or books.

Deduction

An amount subtracted from taxable income. It saves tax equal to the deduction times your marginal rate.

Gross amount

The amount after tax is added, which is usually what a consumer pays.

Marginal rate

The rate applied to the next unit of income. It decides how much of a raise or a deduction you keep.

Taxable income

Income left after allowances and deductions, on which the tax rates are applied.

A quick checklist for students

1. Classify the product.
2. Confirm origin and any trade agreement.
3. Calculate landed cost.

Common mistakes to avoid

• Using the wrong product code.
• Forgetting that sales tax or VAT may also apply.

Frequently asked questions

This article is general information for planning, not tax advice. Rates and rules change; confirm with your tax authority or a qualified adviser.