IFG
Brings official tax law, treaties, case law and guidance into ChatGPT for tax professionals, with source links.
What IFG can do in ChatGPT
Official tax sources with publisher links.
Citation Lookup
Find a law or ruling from its citation or topic.
Tax Treaties
Browse treaties and open specific provisions.
Version History
See which text applied on a given date.
Long Document Search
Locate passages inside long legal texts.
Legal Changes
Pull up recently published changes to the law.
You stay in control
You approve access, and you can disconnect IFG at any time.
Apps 1
What IFG does in ChatGPT
The IFG plugin brings official tax sources into ChatGPT for tax advisers, tax lawyers, accountants and in-house tax teams. It covers legislation, administrative guidance, case law, tax treaties, EU law and OECD publications across the countries available in IFG, with links to each official publisher.
Start from a citation or just a subject and it finds the source. You can page through a whole code or treaty, then jump to the precise section, linked to where the official publisher has it. It can also show which versions of a text existed on a given date, read treaty provisions with the dates they take effect, find passages in long documents and pull up published legal changes.
Coverage and historical depth differ by source and by country. IFG points out when evidence is missing or results are only partial, so you can judge how far each source goes. The sample prompts focus on French tax law and a French-German treaty.
Who it is for
- Tax advisers and tax lawyers
- In-house corporate tax teams
- Accountants handling cross-border work
How to add IFG to ChatGPT
- Open the IFG listing in ChatGPT ↗.
- Click Install plugin.
- Sign in to your IFG account when asked and approve the access it requests.
- Start a chat and ask for what you need, mentioning IFG if ChatGPT does not pick it up.
- To stop, disconnect IFG under apps in your ChatGPT settings.
Questions about IFG
What is the IFG ChatGPT plugin?
The IFG plugin brings official tax sources into ChatGPT for tax advisers, tax lawyers, accountants and in-house tax teams. It covers legislation, administrative guidance, case law, tax treaties, EU law and OECD publications across the countries available in IFG, with links to each official publisher. It is listed in ChatGPT's plugin marketplace under Finance.
What can I ask IFG to do in ChatGPT?
For example: "Find article 219 of the French General Tax Code and show the official text", "Show the France-Germany tax treaty and open the business profits article", "Show article 119 bis of the French General Tax Code as of 1 January 2024".
Who makes the IFG plugin for ChatGPT?
The ChatGPT listing names IFG as the developer. The version listed on 8 October 2026 was 2.0.0.
How do I add IFG to ChatGPT?
Open the IFG listing in ChatGPT, click Install plugin, sign in to your IFG account and approve the access it asks for. Then ask for what you need in a chat, mentioning IFG if ChatGPT does not pick it up.
Can IFG change things in my account, or only read?
It searches and opens official tax sources in IFG and links to the original publisher. The listing does not describe changing any data.
Who is the IFG plugin for?
Tax advisers and tax lawyers, in-house corporate tax teams and accountants handling cross-border work.
Can IFG show an older version of a law?
Yes. It can check available text versions and which one applied on a specified date.
Does it cover tax treaties?
Yes. You can browse treaties and read provisions with the dates they take tax effect.
Is coverage the same for every country?
No. The listing says coverage, historical depth and applicability evidence vary by source and jurisdiction.
Does IFG see my ChatGPT chats?
When IFG is connected, ChatGPT may share the parts of your chats and memories that matter for a request with IFG. What IFG does with that data falls under its own terms and privacy policy. ChatGPT keeps your training-data settings, and you can disconnect at any time.
How do I disconnect IFG from ChatGPT?
Open your ChatGPT settings, go to apps, and disconnect IFG. You can reconnect later from the listing.
What are alternatives to IFG in ChatGPT?
Similar plugins in the ChatGPT marketplace include Cashfree, Kintsugi AI and CoinMarketCap. Each has its own page in this directory.
Privacy and your data
When IFG is connected, ChatGPT may share the parts of your chats and memories that matter for a request with IFG. What IFG then does with that data falls under its own terms and privacy policy, not only OpenAI's. ChatGPT keeps your training-data settings for data that comes from connected apps, and you can disconnect at any time.