Romania Tax Residency (183-day rule)

Key parameters
Threshold	183 days
Period / Window	Rolling 12 months
Counting	Any part of a day
Alternative	Center of vital interests test
Additional requirements	Questionnaire within 30 days

You are a Romanian tax resident if you meet any of several conditions, of which 2 matter most in practice:

• 183-day rule — presence in Romania totalling more than 183 days across any period of 12 consecutive months that ends in the calendar year concerned. The periods don't have to be continuous.
• Center of vital interests — where your personal and economic ties are strongest. Someone who demonstrates this is treated as Romanian resident from the date they formally declare it.

Domicile in Romania, and being a Romanian citizen working abroad for the state, are further routes that catch narrower groups.

The administrative step is easy to miss and is genuinely part of the rule. Anyone arriving in Romania who crosses the 183-day threshold has to submit a residence questionnaire to the tax authority within 30 days of that point. Residency isn't something the authority infers quietly from your travel; you are expected to declare it.

• The 12-month window must end inside the calendar year assessed. That constraint is what stops an arbitrary rolling stretch from producing residency in a year it barely touches.
• The questionnaire is a duty, not a formality. It is due within 30 days of crossing the threshold, and the authority issues a decision on your status in response rather than simply filing it.
• Declaring a center of vital interests fixes a start date. Residency on that limb runs from the date you formally declare it, so the declaration itself determines when the charge begins.
• Leaving Romania has its own procedure. Someone ending Romanian residency files a departure questionnaire, and the authority decides whether the status actually ends rather than it lapsing automatically.
• Romania charges a flat rate on most personal income. Residency changes the scope of what is taxed rather than the rate applied to it.

Residents are taxed on worldwide income while nonresidents pay only on Romanian-source income, so an incorrect position usually surfaces as foreign earnings left undeclared. Late payment carries interest at 0.02% for each day of delay plus a further penalty of 0.01% per day, and where income was not declared at all a substantially higher non-declaration penalty of 0.08% per day can apply instead, reduced where the liability is settled promptly. Professional tax advice is strongly recommended in situations like this.

A stay that crosses the threshold mid-year

You move to Bucharest in January for a contract and pass day 183 in early July. You are a Romanian tax resident, and the questionnaire is due within 30 days of that July date rather than at the end of the year.

Separate stays that add up

You visit Romania for 3 stretches of about 10 weeks each across a rolling 12 months. No single stay is long, but they total more than 183 days in a window ending in the calendar year, so the threshold is met.

Ties declared without the days

You spend around 100 days in Romania but your family home, your children's school and your business are all there. You declare your center of vital interests, and residency runs from the date of that declaration rather than from a day count.

• ANAF — Guidelines for fiscal residence of individuals
• OECD — Romania: information on residency for tax purposes
• ANAF — National Agency for Fiscal Administration