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## Resource: TaxCalculation



## Article: Introduction

## Article Link: https://dev.wix.com/docs/velo/apis/wix-billing-v2/tax-calculation/introduction.md

## Article Content:

---
title: Introduction
---

# Introduction

The Tax Calculation API allows you to retrieve the available tax calculators for a site and to calculate tax. Use the Tax Calculations API together with the
[Tax Groups API](https://dev.wix.com/docs/velo/api-reference/wix-billing-v2/tax-groups.md) and the
[Tax Regions API](https://dev.wix.com/docs/velo/api-reference/wix-billing-v2/tax-regions.md) to customize the application of tax for your business.

## Before you begin
It's important to note the following before starting to code:
+ Tax is calculated based on the [tax region](https://dev.wix.com/docs/velo/api-reference/wix-billing-v2/tax-regions.md) and a tax region requires an `appId` for an available tax calculator. Use [`listTaxCalculators()`](https://dev.wix.com/docs/velo/api-reference/wix-billing-v2/tax-calculation/list-tax-calculators.md) to retrieve a list of available tax calculators for a site, then create and manage your [tax regions](https://dev.wix.com/docs/velo/api-reference/wix-billing-v2/tax-regions.md) before [calculating tax](https://dev.wix.com/docs/velo/api-reference/wix-billing-v2/tax-calculation/calculate-tax.md).
+ You can provide additional tax calculations with the [Tax Calculation service plugin](https://dev.wix.com/docs/velo/api-reference/wix-billing-v2/service-plugins-spis/billing-tax-calculation/introduction.md).

To use the Tax Calculation API, import `{ taxCalculation }` from the `wix-billing.v2` module:
``` javascript
import { taxCalculation } from 'wix-billing.v2';
```

## Terminology
- **Tax calculator**: An app that is used under the hood to calculate tax for a Wix site. The app calculates tax based on the tax group of the product and the tax region of the sale. A site assigns each tax region to the Wix manual tax calculator or an external calculator app to properly calculate tax.
- **Wix manual tax calculator**: The default tax calculator installed with a Wix site. The tax rates to apply for this calculator can be manually adjusted in the [Tax Settings in the Wix dashboard](https://www.wix.com/my-account/site-selector/?buttonText=Select%20Site&title=Select%20a%20Site&autoSelectOnSingleSite=true&actionUrl=https:%2F%2Fwww.wix.com%2Fdashboard%2F%7B%7BmetaSiteId%7D%7D%2Fecom-platform/tax/).