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.

SwedenRegeringskansliets rättsdatabaser

Tax-assistance convention’s Swedish annex adds top-up tax

The revised list of Swedish taxes covered by the mutual tax-assistance convention includes the Top-up Tax Act 2023:875.

By Taxxa AI OyPublished 18 August 2026

Tax

Industry: Across industries

The revised Annex 2 to Act 1990:313 includes the Top-up Tax Act 2023:875 among the Swedish taxes to which the Council of Europe/OECD mutual tax-assistance convention applies. It appears under Article 2(1)(a)(i), alongside income-tax provisions. The annex is amended through SFS 2026:301.GOV

This is an update to the convention’s Swedish tax-coverage list. For work involving cross-border assistance on top-up tax, advisers should check the updated annex together with the convention provisions governing the requested assistance; the entry itself does not establish a new tax rate or a taxpayer filing deadline.GOV

Include the updated annex when assessing the legal basis for cross-border assistance involving Swedish top-up tax.

Sources

Lag (1990:313) om Europaråds- och OECD-konventionen om ömsesidig handräckning i skatteärenden