Updated
GL-#-04
Glossary · Taxes and residency
183-day rule - 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.
01 / In 30 seconds
The short answer
- 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
02 / In plain words
What 183-day rule means
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.
A case from practice
A person leaves their country for 190 days but keeps a flat, their family and their main business there. Formally, by days, they are below the threshold, but on the totality of ties the country continues to regard them as a tax resident. To change this, they need to move their centre of life too, not just the days.
Where it matters
- Tax planning when relocating
- Changing tax residence
- Working for two countries
- International business and investment
- Opening foreign accounts (CRS)
- Selling major assets
03 / What it covers
What is taken into account besides days
Presence
- 183 days in 12 months
- Actual days in the country
- The main criterion
Centre of life
- Permanent home
- Family
- Personal ties
The economy
- Main business
- Source of income
- Economic interests
Disputes
- Dual residence
- Settled by the double tax treaty
- A chain of criteria
04 / How it works
How the rule is applied
Counting days in the country
Checking ties (home, family)
Determining residence
In a dispute — the double tax treaty
One country of residence
05 / Key facts
What you need to know
01
183 days is the main, but not the only, criterion
02
Home, family and centre of vital interests are taken into account
03
Citizenship and tax residence are different things
04
Leaving for 183 days without severing ties is often not enough
05
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
06 / Expert advice

How to prepare in advance
When relocating, count in advance not just the days but the ties: where your home, family and business will remain. For your previous country to let you go as a resident, you usually need to spend more than half the year outside it and sever key ties, and often obtain residence in the new country. Then the change of status goes through without disputes.
What we do for you. 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.
Dmitry NagyTax consultant, international taxation and compliance (ex-Big4)
07 / Questions
Frequently asked questions
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.
Usually over 12 months — a calendar year or a rolling period. Counting rules differ by country, so days are tracked in advance.
No. Citizenship and tax residence are different things. Residence is determined by presence and ties, not by a passport.
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.
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.
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.
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