> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://avalara.ferndocs.com/_mcp/server.

# Sales and use tax

Calculation, document management, and returns solutions work together for synergistic compliance in 12,000+ U.S. tax jurisdictions.

#### [Ecommerce](/docs/sales-and-use-tax/ecommerce/before-you-begin)

Integration guide.

#### [Marketplace](/docs/sales-and-use-tax/marketplace/before-you-begin)

Integration guide.

#### [ERP](/docs/sales-and-use-tax/erp/before-you-begin)

Integration guide.

#### [AvaTax and ECM](/docs/sales-and-use-tax/avatax-and-ecm/about-this-guide)

Integration guide.

#### [Hospitality](/docs/sales-and-use-tax/hospitality/get-started)

Integration guide.

#### [Beverage Alcohol](/docs/sales-and-use-tax/bevalc/before-you-begin)

Integration guide.

#### [AvaTax for Accounts Payable](/docs/sales-and-use-tax/accounts-payable/get-started)

Integration guide.

> API solutions for end-to-end tax compliance.

## Docs

- [Before you begin](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/before-you-begin.md)
- [Authentication](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/authentication.md)
- [Error handling](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/error-handling.md)
- [Configure AvaTax](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/configure-avatax.md)
- [AvaTax transction concepts](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/avatax-transction-concepts.md)
- [Design the user experience](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/design-the-user-experience.md)
- [Design the transaction workflow](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/design-the-transaction-workflow.md)
- [Test transactions](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/test-transactions.md)
- [Calculate tax offline](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/calculate-tax-offline.md)
- [Functional review](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/functional-review.md)
- [Revision history](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/ecommerce/revision-history.md)
- [Before you begin](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/before-you-begin.md)
- [Authentication](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/authentication.md)
- [Error handling](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/error-handling.md)
- [Configure AvaTax](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/configure-avatax.md)
- [AvaTax transaction concepts](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/avatax-transaction-concepts.md)
- [Design the user experience](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/design-the-user-experience.md)
- [Design the transaction workflow](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/design-the-transaction-workflow.md)
- [Test transactions](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/test-transactions.md)
- [Calculate tax offline](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/calculate-tax-offline.md)
- [Functional review](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/functional-review.md)
- [Revision history](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/marketplace/revision-history.md)
- [Before you begin](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/before-you-begin.md)
- [Authentication](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/authentication.md)
- [Error handling](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/error-handling.md)
- [Configure AvaTax](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/configure-avatax.md)
- [AvaTax transaction concepts](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/avatax-transaction-concepts.md)
- [Design the user experience](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/design-the-user-experience.md)
- [Design the transaction workflow](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/design-the-transaction-workflow.md)
- [Test transactions](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/test-transactions.md)
- [Calculate tax offline](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/calculate-tax-offline.md)
- [Functional review](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/functional-review.md)
- [Revision history](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/erp/revision-history.md)
- [About this guide](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/about-this-guide.md)
- [Planning your integration](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/planning-your-integration.md)
- [Additional resources](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/additional-resources.md)
- [Glossary](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/glossary.md)
- [Authentication](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/authentication.md)
- [Error handling](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/error-handling.md)
- [Configure AvaTax and Document Management](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/configure-avatax-and-document-management.md)
- [Design the admin and utilities user experience](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/design-the-admin-and-utilities-user-experience.md)
- [Design the Sales and Use Tax user experience](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/design-the-sales-and-use-tax-user-experience.md)
- [Design the transaction workflow](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/design-the-transaction-workflow.md)
- [Transactions](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/transactions.md)
- [Example transactions](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/example-transactions.md)
- [Calculate tax offline](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/calculate-tax-offline.md)
- [FAQs](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/faqs.md)
- [Design the Document Management user experience](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/design-the-document-management-user-experience.md)
- [Design the Document Management workflow](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/design-the-document-management-workflow.md)
- [Test Document Management](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/test-document-management.md)
- [FAQs](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/faqs-17.md)
- [Submit your integration for review](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/avatax-and-ecm/submit-your-integration-for-review.md)
- [Get started](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/hospitality/get-started.md)
- [Understand](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/hospitality/understand.md)
- [Build](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/hospitality/build.md)
- [Get certified](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/hospitality/get-certified.md)
- [Q-and-A](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/hospitality/q-and-a.md)
- [Before you begin](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/bevalc/before-you-begin.md)
- [Configure AvaTax](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/bevalc/configure-avatax.md)
- [Design the transaction workflow](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/bevalc/design-the-transaction-workflow.md)
- [Shipping verification](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/bevalc/shipping-verification.md)
- [Age verification](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/bevalc/age-verification.md)
- [Certification requirements](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/bevalc/certification-requirements.md)
- [Examples](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/bevalc/examples.md)
- [Functional review](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/bevalc/functional-review.md)
- [AvaTax for Beverage Alcohol FAQs](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/bevalc/avatax-for-beverage-alcohol-faqs.md)
- [Get started](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/accounts-payable/get-started.md)
- [Understand](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/accounts-payable/understand.md)
- [Build](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/accounts-payable/build.md)
- [Get certified](https://avalara.ferndocs.com/docs/integration-guides/sales-and-use-tax/accounts-payable/get-certified.md)