183-dayrule
The 183-day rule
The main rule of tax residency: spend 183 days or more in a country in a year and you usually become its tax resident. Other ties are also considered: housing, family, center of interests.
- What it is
- The rule under which 183 days in a country in a year make you its tax resident
- Where it applies
- Determining tax residence in almost every country
- Is anything else taken into account
- Yes: home, family, centre of vital interests
- Link with the passport
- None: citizenship and residence are different things
- Can you prepare
- Yes: count the days and ties in advance when relocating
In plain words
The 183-day rule is the main criterion of tax residence. The logic is simple: if you have spent 183 days or more in a country in 12 months, it as a rule regards you as its tax resident and is entitled to tax your income. It is the most visible and often the first indicator used to determine where you pay tax.
But days are not the only thing that is looked at. If a simple count is not enough, or you are “between” countries, other ties come into play: where your permanent home is, where your family lives, where your main business and centre of vital interests are. That is why leaving for exactly 183 days without severing ties is not always enough to change residence.
It is important not to confuse this with citizenship: a passport of Grenada or another country does not by itself make you its tax resident. Residence is determined by actual presence and ties, not by a document.
Where it matters
What is taken into account besides days
- 183 days in 12 months
- Actual days in the country
- The main criterion
- Permanent home
- Family
- Personal ties
- Main business
- Source of income
- Economic interests
- Dual residence
- Settled by the double tax treaty
- A chain of criteria
How the rule is applied
- 01Counting days in the country
- 02Checking ties (home, family)
- 03Determining residence
- 04In a dispute — the double tax treaty
- 05One country of residence
What you need to know
- 183 days is the main, but not the only, criterion
- Home, family and centre of vital interests are taken into account
- Citizenship and tax residence are different things
- Leaving for 183 days without severing ties is often not enough
- With dual residence, the dispute is settled by the double tax treaty
Common mistakes
- Assuming it is enough to leave for exactly 183 days
- Forgetting home and family as ties
- Thinking a second passport changes residence
- Not taking account of counting over a rolling 12 months
- Ending up resident in two countries at once without a plan
What this means for a BRIDGES client
We review your situation against all the criteria, not just days: where you are a tax resident now, what needs to change physically and in documents to change your status, and how to avoid dual residence in the process.
Frequently asked questions
01 /Is it enough to leave for 183 days?
Not always. Days are the main criterion, but home, family and the centre of interests are also taken into account. If key ties remain in your previous country, it may continue to regard you as a resident.
02 /How is the period counted?
Usually over 12 months — a calendar year or a rolling period. Counting rules differ by country, so days are tracked in advance.
03 /Does a second passport change residence?
No. Citizenship and tax residence are different things. Residence is determined by presence and ties, not by a passport.
04 /Can you be resident in two countries?
Yes, if both regard you as theirs under their own rules. The dispute is settled by the double tax treaty through a chain of criteria.
05 /How is it connected with CRS?
Under CRS, data on your accounts go to your country of tax residence. That is why it matters to determine it correctly — otherwise the data will go somewhere other than you expect.
06 /What is the centre of vital interests?
The totality of your personal and economic ties: where your family lives, where your home is, where your business is. When days are not enough, status is determined by it.
See also
Read next


This material has undergone editorial review by BRIDGES.
Plan a change of residence?
We will count the days and ties, show what needs to be moved and how to avoid dual tax residence.