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## Resource: Introduction

## Article: Introduction

## Article Link: https://dev.wix.com/docs/api-reference/business-solutions/e-commerce/extensions/tax/tax-settings/introduction.md

## Article Content:

# About the Tax Settings API

The Tax Settings API manages a site's global tax configurations. With the Tax Settings API, you can:

- Read the site's current tax settings.
- Update the tax settings to control how tax is applied at checkout.

## Tax-inclusive vs. tax-exclusive pricing

The `taxIncludedInItemPrices` field controls how checkout calculates tax:

- **`true`**: Catalog prices are treated as tax-inclusive. Checkout doesn't add additional tax on top.
- **`false`**: Catalog prices are treated as tax-exclusive. Tax is calculated and added on top of catalog prices at checkout.

If the site's tax settings have never been set, `taxIncludedInItemPrices` defaults to `false`.

## Shared setting

Tax settings are shared across all Wix products on the site. Changing `taxIncludedInItemPrices` affects how every integrated product handles tax at checkout. For example, if a site uses both Wix Stores and Wix Bookings, updating this setting changes tax behavior for both.

## Use cases

- [Display prices correctly based on tax settings](https://dev.wix.com/docs/api-reference/business-solutions/e-commerce/extensions/tax/tax-settings/sample-flows.md#display-prices-correctly-based-on-tax-settings)
- [Update tax settings when a merchant configures their pricing](https://dev.wix.com/docs/api-reference/business-solutions/e-commerce/extensions/tax/tax-settings/sample-flows.md#update-tax-settings-when-a-merchant-configures-their-pricing)

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