> This page is for Documentation, version Integration guides (default).
> For other versions, use one of these documentation indexes:
> - Integration guides (default): https://avalara.ferndocs.com/docs/integration-guides/llms.txt
> - Refactor guides: https://avalara.ferndocs.com/docs/refactor-guides/llms.txt
> - Get certified: https://avalara.ferndocs.com/docs/get-certified/llms.txt
> - Agent to Agent (A2A): https://avalara.ferndocs.com/docs/agent-to-agent-a2a/llms.txt
> - AI use cases: https://avalara.ferndocs.com/docs/ai-use-cases/llms.txt
> - API versioning: https://avalara.ferndocs.com/docs/api-versioning/llms.txt

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

# Revision history

Date

Description of change

December 15, 2024

* Updated the [Create and activate a company](https://developer.avalara.com/vat-ecom/configure-your-avatax-account/create-and-activate-a-company-vat) topic to match current walkthru.

* Removed the "Verify the VAT entitlement" topic because it's no longer applicable.

* Moved all UI-element requirements to within the **Design the user experience** section.

April 1, 2025

Added support for VAT calculations in Bahrain and Thailand.

> **Note**
>
> Part of the **VAT for Ecommerce** integration guide. [Open the full "Revision history" milestone on Avalara](https://developer.avalara.com/vat-ecom/revision-history/) to see every page in this section.