The one idea to start with
Your visa does not decide who taxes you
Immigration status and tax residence are two different systems, decided by two different rules. Confusing them is the most expensive mistake a mover makes.
Two systems, not one
A visa or residence permit answers a single question: may you be in the country, and for how long. Tax residence answers a completely different one: which country has the right to tax your income. The two are set by separate rules, in separate parts of the law, and they routinely disagree.
You can hold a long-stay visa and not be tax resident. You can be tax resident with no visa at all, as a citizen at home, or as someone who simply spent too many days somewhere. The immigration office and the tax authority are not the same desk, and neither checks with the other.
Why people get this wrong
Most country guides are written by immigration agents, so they stop at the visa. The visa is the product they sell. What happens to your tax position after you arrive is left as someone else's problem, usually yours, usually discovered late.
The tax authorities themselves are explicit that the two are separate. The United States IRS states plainly that a visa status is different from tax residency status under tax law. The OECD Model Tax Convention, which underpins most of the world's tax treaties, decides residence on facts like where your home and your life are, never on what visa you hold.
What decides tax residence instead
Day count is the first test almost everywhere: cross a threshold, often around 183 days, and a country can treat you as resident. But the day count is a floor, not a ceiling. A permanent home available to you, a partner or children living somewhere, or your centre of vital interests can make you resident well below the count.
This is why a plan has to model the two things separately: where you may legally stay, and where you will actually be taxed. The builder does exactly that, and the tax-residency tracker counts the days for you.
Common questions
- Does getting a residence permit make me tax resident?
- Not by itself. A residence permit lets you stay. Tax residence is decided separately by day count and personal ties. Some permits raise the odds by showing intent to reside, but the permit alone is not the test.
- Can I be tax resident somewhere without a visa?
- Yes. In your country of citizenship you need no visa but are usually taxable, and anyone who spends enough days or keeps a home in a country can become tax resident there regardless of visa status.