You kept the flat
Owning property in the country you left does not by itself make you tax resident there. It does two other things: it keeps you inside that country's tax system every year as a non-resident filer, and it counts as a tie if a residency assessment ever weighs the whole picture. A property let at market rate is unremarkable. One kept empty for your own use is not.
Who this affects
Almost everyone who leaves, because selling is a bigger decision than moving and most people postpone it. That is usually fine. It stops being fine when the property is your main asset or your main income.
Why it matters
Immovable property is taxed at source under essentially every double-tax treaty, so the rental income does not move with you no matter where you become resident. What changes is the regime — usually to one with fewer deductible expenses, which means a similar-looking rate applied to a larger base. And the filing continues every year, on the source country's calendar, unconnected to anything you file elsewhere.
What they actually look at
- Whether the property is genuinely let or kept available for your own use
- Whether the rent is at market rate and paid traceably
- Whether the non-resident filings were made, every year, on time
- How the property sits alongside every other tie you retained
How it is resolved
- Deciding keep, let or sell before the residency-end date, because a sale before it and one after it fall under different regimes
- Letting at market rate with a real tenant and a written agreement, rather than informally to family
- Registering for the non-resident filing properly from the first year and diarising deadlines that will not match your new tax year
- Declaring it. An undeclared let property in the country you claim to have left is both a filing failure and an undisclosed tie
The common mistake
Keeping it empty "for when I visit". That reads as a home retained rather than an asset owned — and it is the weakest version of this situation.
When the door closes
The residency-end date closes the keep/let/sell decision. The filing obligation then repeats annually until you sell.
Read next
Which profiles this complicates most
- Tax residency for online creators — “My income is platform revenue and it is unpredictable”
Related situations
- I left, but my income still comes from my old country
- I own shares in a company and I am about to leave
Weigh the property against everything else you are keeping.