Tax answers with official sources.

Ask IFG a tax question, from a simple point to a complex cross-border case. Get a sourced answer with official references checked as of the answer date.

Three complimentary tax questions — no card required. One question = one request.

Built with 100+ tax practitioners.

Feedback from the groups below shaped how IFG cites official sources, separates missing facts, and keeps each answer reviewable.01, 02, 03

01Private practice · partners and counsel on cross-border tax questions
02Big Four · tax advisory, transfer pricing, M&A
03Corporate tax · in house groups, treasury, family offices
Inside an answer

Every answer stays reviewable.

Not a loose chatbot reply. IFG keeps the answer, official references, assumptions, points to review and missing facts attached to the same question.

Sources Official references are cited and checked as of the answer date, with the authority level kept visible.
Facts Assumptions and missing facts are separated from the answer, so you know what can still change the analysis.
Review Points to control, unresolved issues and follow-up questions stay together for professional review.

Click a tax question.
Review a sourced answer.

Choose a recurring cross-border issue below. The chat updates with the question as asked, the answer, the controlling case-law and official references from the jurisdictions involved, the points to review and the missing facts.

Cross-border withholding: royalties, beneficial ownership, treaty and PPT.

Workflow

Ask IFG in chat or by email.

Use the chat when you want to iterate live, or send the question to your dedicated @ifg.tax address. IFG returns a sourced answer with official references, points to review and missing facts kept with the same question.

Atlas

Official-source research atlas.

Official sources retrieved through native provider web search and ranked by legal authority. Coverage shows mapped official-source domains by jurisdiction.

FAQ
Is IFG a legal opinion?

No. IFG provides a sourced tax answer for practitioner review, not signed advice. Counsel still owns the judgment, the client relationship and any opinion letter. IFG is designed to give you verifiable material before you decide your final position.

How do I verify the sources are in force?

Each answer cites the official references used and keeps the checked date visible. IFG separates statutes, treaty text, official guidance and institutional material. If a reference cannot be verified, the answer should say so instead of hiding the uncertainty.

What happens when the law is silent or contradictory?

IFG does not force certainty. The answer flags the conflict, separates competing positions, cites the authority available and marks the point for review. Unverified or contradictory points are not treated as final conclusions.

Confidentiality. What happens to the facts I submit?

Question facts are handled under IFG's confidentiality undertaking. Queries are encrypted in transit and at rest, and are never used to train models. Redacted submissions are recommended for tests. Bespoke deployments define retention, access control and tenant configuration contractually.

Engagement

One practitioner, one subscription.

Start with three full tax questions on a live file. Move to Solo when the answer quality matches your standard. Month to month, or save two months on annual.

Pilot

Qualified counsel testing the engine. Three full tax questions on real files — no card required.

3 requests
Primary source citations
Research memory preview
Free
admitted counsel only
Start free trial
Solo

Independent tax counsel. Sourced research and sourced answers for one practitioner.

100 requests per month
Chat and email via @ifg.tax
Primary source citations
Sourced answers in PDF
€199/ mo
Monthly subscription — cancel any time
or annual: €1,990 / year, billed once per year — two months free vs monthly

Follow-ups in the same chat count as requests. Exports and source register included.

Begin subscription
Team

Law firms and tax teams. Shared history, deployment scoped to the firm — pricing on request only.

Minimum three seats
Scope sized to the firm
Shared research history and memory
Team onboarding, SSO on request
On request
priced to deployment
Write to us

Engagement terms. All fees in EUR. Invoicing by Stripe or wire, VAT applied where applicable. Question facts remain confidential, never used to train models. Refer to the full engagement terms for data handling, subscription use, and professional conduct.

Test IFG on one live file.

Three full tax questions on a real file — no card, no sales call. Judge citations and structure yourself.