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 & accounting news

Payroll & LabourAdministration des Contributions Directes1 day ago

Luxembourg employers must file 2026 salary statements in new XSD v1.0 format

2026 ECSP filings go through MyGuichet.lu with code ACD_DEPOT_ECSP_2026 and are due before 1 March 2027; paper returns stay unacceptable.

Industry: Across industries

TaxLegilux6 days 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

TaxLegilux6 days 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

TaxLegilux6 days 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

Payroll & LabourGuichet.public.lu1 week ago

Posted-worker files in Luxembourg may now be kept in English

Guichet's posting-declaration page now accepts French, German or English for the article L. 142-3 documents kept for inspection; the previous version allowed only French or German.

Industry: Across industries

TaxAdministration des Contributions Directes1 week 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

TaxPortail de la fiscalité indirecte1 week 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

Financial Sector & MarketsOrdre des Experts-Comptables2 weeks ago

Luxembourg adopts 2026 terrorist-financing risk assessment

Adopted 29 June 2026, the ENR FT 2026 rates lone-actor financing "medium" and large-scale fundraising "low", and puts payment, e-money and crypto providers on "high" inherent risk.

Industry: Life insurance · Monetary intermediation · Other financial service activities, except insurance and pension funding · Sale of motor vehicles · Accounting, bookkeeping and auditing activities; tax consultancy · Legal activities

TaxAdministration des Contributions Directes2 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

Public Sector & EconomyGuichet.public.lu2 weeks ago

Luxembourg co-finances Fit 4 diagnostics: up to EUR 100,000 per project

Businesses with a valid establishment authorisation can get 50-80% of consultant fees for AI, cybersecurity, digital, performance or sustainability diagnostics, but must file the aid request before signing the quote.

Industry: Across industries

Payroll & LabourCentre Commun de la Sécurité Sociale3 weeks ago

CCSS replaces exit declaration with affiliation-change step on MyGuichet

MyGuichet.lu gains a certified-space affiliation-change procedure covering end dates, cancellations and other edits; SECUline filing stays available.

Industry: Across industries

Financial Sector & MarketsPortail de la fiscalité indirecte3 weeks ago

AED switches AIF questionnaire file names to RCS number, YYYYMMDD

The Excel file for the FIA AML/CFT Questionnaire 2025 must now be named with the AIF’s RCS number and the transmission date as YYYYMMDD.

Industry: Trusts, funds and similar financial entities

Payroll & LabourLegilux3 weeks ago

Public-sector medical exams repointed to July 2026 exams law

The 11 October 2026 consolidated text repoints pre-recruitment medical examinations to Article 14(5) of the July 2026 State exams law: fitness for the post sought, results sent to the hiring administration.

Industry: General public administration activities

Financial Sector & MarketsLegilux4 weeks ago

Luxembourg countercyclical buffer stays at 0.50% for Q4 2026

Règlement CSSF N° 26-03 confirms the 0.50% buffer on Luxembourg exposures for Q4 2026; institutions keep it in their buffer calculation while SME investment firms stay exempt.

Industry: Financial and insurance activities

Legal & CorporateLegilux4 weeks ago

Luxembourg standard building tender specs move into regulation annex

Standard building-works specifications move into an annex to the 2014 regulation; dossier handling and the no-derogation rule are unchanged.

Industry: Construction

TaxAdministration des Contributions Directes1 month 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.

Luxembourg news

Latest

Luxembourg employers must file 2026 salary statements in new XSD v1.0 format

Luxembourg-Georgia treaty: new information-exchange rule

Luxembourg-Vietnam treaty: new information-exchange rule

Luxembourg-San Marino MAP loses its three-year expiry

Posted-worker files in Luxembourg may now be kept in English

Panama and Viêt Nam leave EU non-cooperative list

Luxembourg canton notarial acts split between two bureaux from 1 November

Luxembourg adopts 2026 terrorist-financing risk assessment

Luxembourg publishes CARF filing manual and declaration schema

Luxembourg co-finances Fit 4 diagnostics: up to EUR 100,000 per project

CCSS replaces exit declaration with affiliation-change step on MyGuichet

AED switches AIF questionnaire file names to RCS number, YYYYMMDD

Public-sector medical exams repointed to July 2026 exams law

Luxembourg countercyclical buffer stays at 0.50% for Q4 2026

Luxembourg standard building tender specs move into regulation annex

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