OpenAccountants MCP server

OpenAccountants is a library of tax guides written for AI assistants to read. Each guide covers things like income tax, VAT and payroll for a particular country, US state or Canadian province. It is handy if you ask your AI tax questions and want answers that point to a real source instead of a guess.

What this MCP server does

You ask your AI a tax question, like what a freelancer owes in South Africa. Your AI passes the question to this helper. The helper looks through the OpenAccountants guides for the place and topic you mentioned. It sends back the matching guide content, including the figures and the name of the accountant who reviewed it. Your AI then writes the answer for you, using that guide as its source.

Click to zoom

What you can do with it

• Look up income tax rules for a country, US state or Canadian province
• Check VAT or sales tax details for a specific area
• Find payroll guidance for a jurisdiction
• See which accountant reviewed a guide and when
• Get answers that cite the guide they came from
• Ask follow-up questions about the same jurisdiction

Try asking your AI

• “What is the combined sales tax rate in Manatee County, Florida for 2026?”
• “I am a freelancer in South Africa. What do I owe?”
• “What are the payroll rules for small employers in Ontario?”
• “Which accountant reviewed the UK income tax guide?”

What it gives back to you

You get a written answer in the chat, built from the matching guide. It usually includes the key figures, the forms or steps involved, and the name of the accountant who reviewed that guide. Some answers also show which guide was used, so you can see where the information came from.

Before you start

Who it's for

Freelancers, small business owners, bookkeepers and anyone who asks their AI tax questions and wants a source they can check.