Your AI agent, fluent in Australian tax
Connect your AI agent via MCP to 34,500+ ATO documents and get cited answers to the tax questions you'd otherwise pay your accountant to answer.
- Every answer cited
- the section, the ruling, the page
- 34,500+ documents
- refreshed monthly
- Works with your agent
- Claude, ChatGPT and more
The questions you'd save up for your accountant
Ask any tax question and get answers drawn from real ATO documents.
Deductions
What can I claim this year?
It finds every deduction that fits how you work: home office, equipment, software. Each one comes backed with the exact ATO source.
Depreciation
How do I write off my new laptop?
Anything under $300 is claimed straight away; bigger gear is written down over its life. It runs the numbers and shows the rule it used.
Audit risk
Is anything in my return risky?
It checks your return against the risk areas the ATO publishes and shows where you stand. This year you sit comfortably in the low band.
What it searches
Every ATO guide, law and ruling in one searchable place
So every answer your agent gives can point to the exact source behind it.
286,638
searchable passages
every paragraph of guidance, findable
6,468
sections of tax law
plus 2,310 legal definitions
64,217
cross-references
answers traceable to their source
Rebuilt monthly, served fresh. See what's inside
- 01
Guidance
ato.gov.au
- 02
Legislation
ITAA 1997 & 1936, GST Act
- 03
Rulings
law.ato.gov.au
- 04
Cross-references
rulings tied to the law behind them
FAQ
Before you connect
Is this tax advice?
No. ato-mcp retrieves published ATO material and runs fixed calculations, always with the source attached. Confidence ratings and risk bands are guides, not professional judgement. Your agent does the reasoning, and decisions that matter should still go past a registered tax agent.
What does ato-mcp store about me?
Your onboarding facts (business structure, GST registration and so on, about 25 fields you control), your sign-in identity, and basic usage counts. Never tool names, never query content, never results: the database physically has nowhere to store them, and the privacy page is generated from that same schema so it can't drift.
Which agents does it work with?
Anything that speaks the Model Context Protocol: Claude, ChatGPT, Codex, Gemini CLI, Cursor, VS Code and more. One line to install, then sign in with your browser.
Is there an MCP server for Australian tax?
Yes. ato-mcp is an MCP server for Australian tax: it gives any agent that speaks the Model Context Protocol (Claude, ChatGPT, Codex, Gemini CLI, Cursor, VS Code) cited retrieval over 34,500+ ATO documents, the income tax and GST Acts and 4,900+ public rulings.
What is MCP (the Model Context Protocol)?
MCP is the open standard AI agents use to call outside tools and data sources. ato-mcp uses it to hand your agent 13 Australian tax tools: search over the corpus, statutory definitions, current rates and thresholds, and four workflow tools, with every answer carrying its ATO citation.
How current is the corpus?
The corpus is rebuilt from ato.gov.au, the Federal Register of Legislation and law.ato.gov.au on a monthly cycle and served fresh. The stats tool reports the live snapshot.
Is it open source?
Most clients connect directly to the hosted endpoint with no local code at all. The optional npm client is open source (AGPL-3.0) and public, so you can verify exactly what it does. The hosted retrieval platform and the corpus are maintained privately.
More questions? Read the full FAQ
Two minutes to a tax-fluent agent
Paste one line, sign in with your browser, and get answers you can stand behind.