How do I set up tax?

Create a default tax class and a rate for it, so orders are taxed.

You will have tax added to store orders.

Before you start

You need permission to manage tax. Without a default tax class, no tax is charged at all.

Open Store → Tax & Shipping, then the Tax classes tab.
Add a class, switch on Default tax class, and save.
Open the Tax rates tab, choose the class, and add a rate: a Rate name and the Tax percentage (for example 9).
Leave Country, State, Postcode and City as * to apply everywhere (on Farsi sites these fields are hidden).
Keep Also apply this rate to shipping on if shipping is taxed.

Checkout adds the tax on top of the prices once an address is entered. Each product uses its own tax class, else the default.

For each destination only one rate per priority applies; rates at different priorities add up. Use Compound only for tax on tax.
Tax is always added on top; there is no tax-inclusive pricing.
Shipping is taxed once, using only the default class's rates that tax shipping.
With no address entered, tax shows 0.
A class used by products, and the default class, cannot be deleted.

Last updated: October 18, 2026