Compendium · Methodology

Methodology & disclaimer

Not tax or legal advice. This site is a transparency layer over a software decision tool.

What each page shows

Official VAT/GST rules for foreign suppliers of digitally supplied services, how to register, and what the Botchannels API returns for that country.

Sources of “official”

Government / tax-authority pages and primary legislation, verified on 2026-11-02. Secondary commentary is avoided where possible.

Engine comparison

At build time we compare the curated official values to the Botchannels ruleset and write an internal report for operators. That report is not published on this site. When the ruleset and the official value match, the item disappears from the report automatically.

Depth

Full pages: major markets and all EU member states. Light stubs: long-tail countries — still have registration sections, but more fields may be marked unverified.

Corrections

Dated rule changes are listed in the changelog.

Open a public issue on git.stakesquid.eu/claude/botchannels-web with the correction label (sign in or create an account). Each jurisdiction page prefills the template. Rule fixes belong in botchannels-app.