What sources does Taxxa search?

Taxxa searches a continuously updated collection of more than one million pages from tax authorities, government publications, legislation and case law across the European jurisdictions it covers. Every response cites the underlying material, so a professional can inspect the rule, its jurisdiction and whether it is current before relying on the result.

Can Taxxa work with a team’s own documents?

Yes. Research can combine the public knowledge base with a team’s own PDF, DOCX, CSV and TXT files in one workspace. That makes it possible to compare a client document with the relevant guidance, trace a conclusion to its source and prepare a draft without losing the evidence that supports it.

Who is Taxxa built for?

Accountants, auditors, tax advisors, payroll specialists, bookkeepers and advisory teams working across European jurisdictions. Shared workspaces keep research available to colleagues, and citations make review easier.

Where is customer data stored, and is it used to train models?

Customer data stays in the European Union and is never used to train language models.

Does Taxxa replace professional judgement?

No. Taxxa is a research and drafting workspace. It helps professionals reach an informed starting point faster; the professional still reviews the evidence and makes the final decision. It does not file returns, post bookkeeping entries or give legal advice.

Luxembourg Tax news

Tuesday, 3 November 2026

Regulatory changes detected daily from official sources across Europe. Create a free account to follow your jurisdictions and ask Taxxa what a change means in practice.

International Tax / Double Tax TreatiesLegilux2 weeks ago

Luxembourg-Georgia treaty: new information-exchange rule

The 3 July 2025 Protocol entered into force on 6 July 2026 and applies to tax years from 1 January 2027, replacing Article 27 on exchange of information.

Industry: Across industries

International Tax / Double Tax TreatiesLegilux2 weeks ago

Luxembourg-Vietnam treaty: new information-exchange rule

The 4 May 2023 Protocol entered into force on 14 April 2026 and applies to tax years from 1 January 2027, replacing Article 27 on exchange of information.

Industry: Across industries

International Tax / Double Tax TreatiesLegilux2 weeks ago

Luxembourg-San Marino MAP loses its three-year expiry

The 14 May 2025 Avenant entered into force on 16 September 2026 and applies to tax years from 1 January 2027, removing the automatic end of the mutual agreement procedure.

Industry: Across industries

Corporate & Income TaxAdministration des Contributions Directes2 weeks ago

Panama and Viêt Nam leave EU non-cooperative list

Luxembourg defensive measures stop covering the two jurisdictions from 16 October 2026; eight jurisdictions remain listed.

Industry: Across industries

Tax Filing, Registration & PenaltiesPortail de la fiscalité indirecte2 weeks ago

Luxembourg canton notarial acts split between two bureaux from 1 November

From 1 November 2026, which of the two bureaux des actes civils assesses and collects registration duties on a notarial act depends on the notary's study code: eight practices go to the first bureau, five to the second.

Industry: Legal activities

Crypto & Digital Asset TaxationAdministration des Contributions Directes3 weeks ago

Luxembourg publishes CARF filing manual and declaration schema

The tax administration's CARF page now links a user manual for reporting crypto-asset service providers and the electronic declaration schema, enabling preparation of the first filings covering 2026.

Industry: Financial and insurance activities

Tax Incentives, Credits & ReliefsAdministration des Contributions Directes2 months ago

Five more companies join Luxembourg's deductible-donation SIS list

CO-OP 01, Haff Wandelbléi, Proliving, RESI and Tangna Impact joined the approved-SIS register with 2026 as first deductible year; cash donations qualify within the 120-euro, 20% and 1-million-euro limits.