> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: TaxRegions ## Article: Introduction ## Article Link: https://dev.wix.com/docs/velo/apis/wix-billing-v2/tax-regions/introduction.md ## Article Content: --- title: Introduction --- # Introduction The Tax Regions API allows you to create and manage tax regions to apply different tax treatment based on location. Use the Tax Regions API together with the [Tax Groups API](https://dev.wix.com/docs/velo/api-reference/wix-billing-v2/tax-groups.md) and the [Tax Calculation API](https://dev.wix.com/docs/velo/api-reference/wix-billing-v2/tax-calculation.md) to customize the application of tax for your business. ## Before you begin It's important to note the following before starting to code: + 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. To use the Tax Regions API, import `{ taxRegions }` from the `wix-billing.v2` module: ``` javascript import { taxRegions } 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/).