Last updated: Apr 8, 2026, 10:20 AM
Toast POS lets you configure how taxes apply to order modifiers, including setting unique rates, overriding defaults, and customizing receipt displays.
| This content is applicable to Toast customers in Australia, Canada, Ireland and the U.K.
Further, this content is for informational purposes and is not intended as legal, tax, HR, or any other professional advice. Please contact a tax professional or other professional for specific advice based on your unique circumstances. Per the terms of the Merchant Agreement between you and Toast, you acknowledge and agree that Toast has no obligation to determine whether taxes apply to your business or transactions, or to calculate, collect, report, or remit any taxes to any tax authority arising from any payment, unless required by law. |
Modifiers are optional additions or alterations to a menu item. Think of them as customizations that your guests can request, such as upgrading from a water bottle in a combo meal to a large-sized fountain soda beverage. To learn more, check out Create and Manage Modifier Groups and Modifier Options.
Taxes can be applied to modifiers in several ways in the Toast platform. This is controlled by the modifier tax behavior setting, which offers three distinct options:
| The Modifier Tax Rate Overrides Item Tax Rate functionality is in limited release with select customers in B.C. Canada at this time. Check back soon for updates! |
The Modifier Tax Behavior feature interacts with other tax functionality as follows:
You can configure a tax rate for a modifier option that is different from the tax configured for its parent menu item. The modifier option's unique tax rate is applied separately from the menu item tax rate.
To configure a unique tax rate for a modifier:
You can configure a tax rate for a modifier option that is different from the tax configured for its parent menu item and which overrides the parent item's tax rate. In this case, both the modifier option and its parent item are taxed using the rate configured for the modifier option.
If you've previously set a unique tax rate or configured a modifier to override its parent item's tax rate, but now want the modifier to inherit the parent's tax rate, you can easily revert to the default setting.
To configure a modifier to inherit its tax rate from its parent menu item:
Note: When you select Inherit item tax rate, any tax rates you previously selected in the Applicable taxes section for this modifier will be ignored. The modifier will now automatically use the tax rate assigned to its parent menu item.
To ensure your guests can see the detailed breakdown of taxes on their receipts, you'll need to adjust your Toast settings.
To configure the setting, follow the steps below:
By clearly itemizing each tax rate applied to the order, you'll provide additional transparency and clarity to guests on their receipt.
The modifier tax behavior in Toast gives you flexibility to customize your menu items. For more information, read the platform guide .