How the check works

Each covered country has a rule record with its residence tests, reporting duties and social security notes. Your answers are compared with those records, and each rule produces a question in plain language.

A day count at or above a rule's figure produces a question to take to a professional.
A day count below the figure says that days alone do not settle it, and points to the other tests.
"Not sure" is treated as open, never as no, and appears under missing facts.
Two or more countries with possible residence ties add a treaty research question and the OECD tie-breaker order.
Uncovered countries, unchecked years and rules without a verified number appear as coverage gaps.

What we ask and why

Question	Why it matters
Days present	Many residence rules use a day figure over a set period.
Home available	A permanent home is a common residence factor and the first treaty tie-breaker.
Spouse, partner or children	Family location is part of the centre of vital interests in many rules.
Where you physically work	Work income is commonly taxed where the work is done.
Registration	Some countries look at civil or municipal registration.
Citizenship	A few countries tax citizens wherever they live.
Immigration status	Some rules refer to permanent residence status. A visa never decides tax residence by itself.
Residence last year	Departure, split-year and continuing-residence rules depend on it.
Income types	Source-country taxation depends on the type of income.

We never ask for tax IDs, passport numbers, bank details, income amounts or documents.

Countries covered: 40 countries
Sources: Each question links its source
Tax year: 2026 checked
Review: Not professionally reviewed
Sources checked November 8, 2026