How tax residency is decided for an EU resident who owns a home abroad: 183 days, centre of vital interests, treaty tie-breaker, certificate of residence.
Everything in cross-border property tax starts with one question: where are you tax resident? The answer decides which country taxes your worldwide income, which wealth or property taxes can reach your home abroad, and which treaty benefits you can claim. Our article on tax residency when relocating covers the move itself. This one takes a narrower angle: you already live in an EU country, you own or plan to buy a home elsewhere, and you want to know how that ownership affects your residency.
Residency is a national test, not an EU rule
There is no single EU definition. Each country writes its own test in its tax law. Many use some combination of days spent in the country and personal ties, and the figure of 183 days is common, but not universal and not always the deciding element. Poland is a clear example: under the Personal Income Tax Act, a person is resident if the centre of personal or economic interests is in Poland, or if the person stays in Poland more than 183 days in the tax year. Either condition is enough. The tests of Germany, Czechia and the Baltic states are worded differently; check the tax office page of your country rather than assuming that 183 days is the rule.
The three things most tests look at
- Days. Counting rules differ: calendar year, any twelve-month period, partial days. Keep a simple log of entries and exits.
- Permanent home. A home available to you in the country, owned or rented, is a classic sign of residency.
- Centre of vital interests. Where your family lives, where you work or run a business, where your main bank accounts and social ties are.
Why a home abroad can matter
Owning a flat in Spain or Portugal does not by itself make you resident there. But it can add weight on the scale. A property that you keep furnished and available all year can count as a permanent home. Spending long periods in it, moving your family or bank accounts, or registering for local services can move the centre of your interests. Property that you rent out through an agency and visit for two weeks a year is a weaker link. The facts matter more than the label, and local authorities look at the whole picture. A resident in two countries may owe tax in both until a treaty settles the question.
When two countries both claim you
Most treaties follow the OECD model, Article 4. If both countries treat you as resident, the treaty uses a sequence of tests, each applied only if the previous one does not decide:
- permanent home available to you;
- centre of vital interests;
- habitual abode;
- nationality;
- if still unclear, the two tax authorities settle the question by mutual agreement.
The result applies for the treaty only: it decides which country has the main right to tax you under that treaty. The exact wording differs between treaties, and a few older ones do not follow the model. It is worth reading the article in the treaty between your two countries on the official portal of your tax authority, or asking an adviser. If you have a home in both countries, the test moves on to the centre of vital interests, so the second property can trigger a more detailed review.
Proving where you are resident
Tax offices abroad (for rent withholding, or for treaty relief on income and capital gains) often ask for a certificate of tax residence. It is issued by the tax authority of the country where you say you are resident, on application, usually for a particular year and country. Allow time: it can take weeks. Keep the certificate with the lease, the property deed and the foreign tax return. Other useful evidence is a registration address, an employment or business contract, utility bills and the day log.
If you move
- Check when residency ends. Some countries end it at the date you leave, others only at the end of the tax year, or when you give up your home.
- Notify the tax office in the country you are leaving and register in the new one.
- Look at how your existing property abroad is treated in the new country: some tax it in a way your old country did not, see wealth and property taxes on foreign real estate in the EU and rental income abroad by country.
- Keep records of the property value at the date of the move, in case the new country asks for it at a later sale.
FAQ
If I spend fewer than 183 days in a country, am I never resident there? No. Many countries also look at a permanent home or centre of interests, so fewer days do not always mean non-resident.
Can I be resident in two countries? Under domestic law, yes. A treaty then assigns the main right to tax to one of them.
Does buying a home abroad change my residency? Not by itself, but it can be one of the facts, especially if you spend long periods there.
Who issues the certificate of residence? The tax authority of your country of residence, on request.
What if I do not know where I am resident? Ask a tax adviser in each country before you file; wrong filings are harder to fix than to prevent.
How we help
We are a trilingual platform that finds properties and coordinates independent local lawyers and tax advisers. This text is informational and is not legal, tax or investment advice; residency tests change, so verify the current rules with the tax authority of your country. Useful starting points: podatki.gov.pl for Poland and the OECD tax treaty page.