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Taxes

Global tax behavior plus per-plugin tax calculators listed below.

CartThrob Settings Taxes

Fields

Tax Use Shipping Address*

Uses the shipping address instead of billing when matching tax rates. Default is billing.

Round Tax Only On Subtotal*

Default (No): tax is calculated and rounded per line item, then multiplied by quantity — line-item tax totals match the cart display.

Yes: tax is calculated on the cart subtotal and rounded once. Often better when tax is applied to the order subtotal rather than each item (common in the US).

Tax plugins

Each row is a tax plugin. Active must be Yes for checkout to use it. Click Manage to edit plugin rates and rules.

Columns: Plugin Name, Active, Manage.