Who writes the pages
Country, company and setup pages are written by David Sisvadze, CEO at Nomad Tax Map, who brings 13+ years of experience, including 6 years with the Revenue Service of Georgia. Boxes titled “David's note” carry his first-person judgment; the rest of each page states the rule, the number and its source.
Which sources count
- Primary: tax authorities such as the IRS, HMRC, Spain's AEAT, Portugal's Autoridade Tributária, Italy's Agenzia delle Entrate, the UAE Federal Tax Authority and Georgia's Revenue Service; immigration authorities; official gazettes and legislation; companies registries and free zone authorities; the OECD, the EU list of non-cooperative jurisdictions and the FATF.
- Secondary: Big 4 tax summaries (PwC, KPMG, EY, Deloitte) and law firm briefings. We use them only when no primary source can be read, and the figure names the source.
- Never a source: formation agents, relocation consultants, visa agencies, blogs, forums, AI-built tax sites and Wikipedia.
When a page compares providers, each price comes from the provider's own pricing page, with the date we read it.
How a figure gets verified
A search result or a summary is a lead, never a source, because summaries often lag the law. We read a threshold in the statute or at the agency that applies it, and a fee in the agency's own schedule, in the same session that writes the page. Where official sources conflict, we use the reading with the higher tax, so a page never overstates a saving, and the note on the figure sets out both readings.
Each figure then carries 1 of 5 states: verified-primary, verified-secondary, unverified, disputed or outdated. Disputed and outdated figures never appear on the live site and never feed a score. An unverified figure appears and counts like a verified one, stays labeled unverified in our data and is re-checked every quarter, as the Nomad Tax Index methodology sets out state by state.
Currency and dates
Amounts appear in the legal currency first, with a USD conversion beside them. All conversions use 1 exchange rate table, and its date is stated on every page that converts. Each figure also shows when we last checked it, and a page's “Last verified” date is the oldest check among the figures on it.
How we keep figures current
- A figure older than 180 days is flagged for a re-check; after 365 days it can no longer appear on the live site.
- Regimes that changed in the last 24 months are re-checked every quarter.
- Every January, in budget season, the whole dataset is re-verified and the Index moves to a new edition year.
Advertising and affiliate links
Some pages carry ads, and pages that compare providers can carry affiliate links, which are marked as sponsored. A page with an affiliate link says so. Scores and rankings come only from the published scoring rules.
Corrections
If a figure is wrong or out of date, send the page address and the source you are reading through the contact form. We re-check the figure at its source. If it was wrong, we correct the data, update its checked date and record the correction with its date in the change log.
