How to Become a Romanian Tax Resident in 2026: The Complete Guide

Introduction

Tax residence is one of the most consequential — and most misunderstood — concepts for any foreigner living, working, or doing business in Romania. It determines whether Romania has the right to tax your worldwide income or only your Romanian-source income. It affects how your salary, dividends, investment gains, rental income, and business profits are taxed, in Romania and in your home country. And it is entirely separate from your immigration status: having a Romanian residence permit does not automatically make you a tax resident, and becoming a tax resident does not require Romanian citizenship or even a residence permit.

Despite its importance, tax residence is often treated as a simple calendar exercise — “if I spend 183 days in Romania, I become a tax resident.” This is dangerously incomplete. The 183-day rule is only one of several criteria, and Romanian tax law can establish residence through your permanent home, your centre of vital interests, or your domicile, regardless of how many days you spend in the country. Conversely, if a double tax treaty applies, the tie-breaker rules may assign your residence to another country even if you exceed the 183-day threshold in Romania.

This guide explains the complete framework for establishing Romanian tax residence as a foreign individual in 2026. It covers every criterion, the ANAF questionnaire and documentation process, the role of double tax treaties, the tax consequences of becoming a resident, the specific issues facing remote workers, how to obtain a tax residence certificate, how to terminate residence when leaving Romania, and the mistakes to avoid.

Who Is Considered a Romanian Tax Resident

Under the Romanian Fiscal Code, an individual is considered a Romanian tax resident if any one of the following conditions is met:

1. Domicile in Romania. A person who has their domicile (domiciliu) in Romania is a tax resident. For Romanian citizens, domicile is established by their identity card. For foreigners, domicile in the tax sense is closely linked to having a permanent home available in Romania.

2. Centre of vital interests in Romania. A person whose centre of vital interests (centrul intereselor vitale) is in Romania is a tax resident, regardless of the number of days spent in the country. The centre of vital interests is determined by the totality of the person’s personal, economic, and social connections to Romania.

3. Physical presence exceeding 183 days. A person who is present in Romania for more than 183 days during any period of 12 consecutive months is presumed to be a Romanian tax resident. The 12-month period is rolling — it is not limited to the calendar year.

4. Romanian civil servant posted abroad. Romanian civil servants working abroad remain Romanian tax residents regardless of where they physically reside.

These criteria are applied independently. Meeting any single criterion is sufficient to establish tax residence. A person can become a Romanian tax resident through their centre of vital interests even if they have spent only 90 days in Romania, or through the 183-day rule even if their family remains abroad. The interaction between these criteria and any applicable double tax treaty is what ultimately determines the person’s residence for tax purposes.

The 183-Day Rule: What It Actually Means

The 183-day rule is the most frequently cited criterion for tax residence, and the most frequently misapplied. The key points are:

Any 12 consecutive months. The 183 days are counted over any period of 12 consecutive months, not necessarily a calendar year. A person who arrives in Romania in September 2025 and remains through June 2026 may exceed 183 days in a 12-month window even though they do not exceed 183 days in either calendar year 2025 or calendar year 2026 alone.

Days of presence. Days of physical presence in Romania are counted. This includes the day of arrival and the day of departure (the specific counting methodology may be clarified by ANAF guidance or the applicable tax treaty). Days spent in transit through Romania may or may not be counted depending on the circumstances.

Continuous or cumulative. The 183 days do not need to be continuous. Multiple shorter stays that together exceed 183 days within a 12-month period satisfy the rule.

Not the only criterion. Exceeding 183 days creates a presumption of tax residence, but a person can be a Romanian tax resident even with fewer than 183 days if their centre of vital interests or permanent home is in Romania. Conversely, a person who exceeds 183 days may still not be a Romanian tax resident if a double tax treaty assigns residence to another country through the tie-breaker rules.

When does residence begin. If tax residence is established through the 183-day rule, ANAF may determine that residence applies from the first day of presence in Romania during the relevant 12-month period — not from the 184th day. This means the person may be required to declare worldwide income for the entire period from the date of arrival, not just from the date the threshold was crossed.

Centre of Vital Interests

The centre of vital interests is a qualitative assessment of where a person’s personal and economic life is most closely connected. ANAF evaluates a range of factors:

No single factor is determinative. ANAF looks at the overall picture. A person who has a rented apartment in Bucharest, a Romanian bank account, a car registered in Romania, children enrolled in a Romanian school, and whose spouse lives in Romania has a centre of vital interests clearly in Romania — even if they spend four months per year working abroad. Conversely, a person who rents a studio in Bucharest for occasional visits but whose family, home, bank accounts, and social life remain in another country is unlikely to have their centre of vital interests in Romania.

The centre of vital interests is particularly important for remote workers and entrepreneurs who split their time between Romania and another country. If the balance of personal and economic ties shifts toward Romania, tax residence follows — regardless of the 183-day count.

Permanent Home and Domicile

The concept of a permanent home (locuință permanentă) is relevant both under Romanian domestic law and under double tax treaties.

Permanent home under Romanian law. A permanent home in Romania is a dwelling that is available to the person at any time — not just during specific periods. It can be owned or rented. A long-term rental agreement for an apartment constitutes a permanent home. A hotel room for a two-week visit does not.

Domicile. For Romanian citizens, domicile is the registered address on their identity card. For foreigners, the domicile in the tax sense is essentially the permanent home in Romania — the place where the person lives on a regular and settled basis.

Immigration registration vs tax address. The address registered with the General Inspectorate for Immigration (IGI) for residence permit purposes and the address registered with ANAF for tax purposes may be the same or different. The immigration address is an administrative registration; the tax address is where ANAF sends correspondence and where tax declarations are filed. Both should be accurate and consistent.

Having a permanent home in two countries. It is entirely possible to have a permanent home available in both Romania and another country. If this is the case and both countries claim tax residence, the double tax treaty tie-breaker rules resolve the conflict — typically by looking at the centre of vital interests, and if that is inconclusive, at the habitual abode.

The ANAF Tax Residence Questionnaire (Form Z015)

Foreign individuals whose presence in Romania exceeds (or is expected to exceed) 183 days in a 12-month period must submit the Questionnaire for Establishing the Fiscal Residence of an Individual upon Arrival in Romania — known as form Z015.

Purpose. The questionnaire provides ANAF with the information needed to determine whether the individual is a Romanian tax resident. It asks about the individual’s permanent home, family situation, employment, business activities, financial connections, and the number of days spent in Romania and abroad.

Filing deadline. The questionnaire must be submitted within 30 days after the individual’s presence in Romania exceeds 183 days in the relevant 12-month period. Failure to file the questionnaire within the deadline may result in penalties.

Where to file. The questionnaire is filed with the ANAF office (administrația financiară) that has jurisdiction over the individual’s Romanian address. It can be submitted in person, through an authorised representative (with a notarised power of attorney), or electronically through ANAF’s SPV portal if the individual has registered for electronic access.

ANAF’s decision. After reviewing the questionnaire and any supporting documents, ANAF issues a decision (decizie) confirming or denying Romanian tax residence. The decision specifies the effective date from which tax residence applies. If ANAF determines that the individual is a Romanian tax resident, the individual must begin declaring and paying tax on worldwide income from that date.

Additional documents. ANAF may request additional documents to support the questionnaire — lease agreements, employment contracts, family documents, travel records, foreign tax residence certificates, bank statements, or other evidence. Responding promptly and completely is important to avoid delays.

Documents Required for Establishing Tax Residence

The specific documents required depend on the individual’s circumstances, but the following are commonly requested or advisable to prepare:

All foreign-language documents must be accompanied by certified translations into Romanian, prepared by an authorised translator. Documents issued by foreign authorities may need to be apostilled or legalised depending on the issuing country.

Double Tax Treaties and Tie-Breaker Rules

When a person qualifies as a tax resident of both Romania and another country simultaneously — for example, because they have a permanent home and family in Germany but spend more than 183 days in Romania — a double tax treaty between the two countries provides a sequence of tests (known as tie-breaker rules) to determine residence for treaty purposes. The standard sequence, based on Article 4 of the OECD Model Tax Convention, is:

1. Permanent home. The person is considered a resident of the country where they have a permanent home available. If they have a permanent home in both countries, the test moves to the next criterion.

2. Centre of vital interests. If the person has a permanent home in both countries, residence is assigned to the country where personal and economic relations are closer — the centre of vital interests.

3. Habitual abode. If the centre of vital interests cannot be determined, residence is assigned to the country where the person has an habitual abode — meaning the country where they spend more time.

4. Nationality. If the habitual abode test is inconclusive, residence is assigned to the country of which the person is a national.

5. Mutual agreement. If none of the above tests resolve the issue (for example, the person is a national of both countries), the tax authorities of the two countries must resolve the case by mutual agreement.

The treaty tie-breaker overrides domestic law. If the treaty assigns residence to the other country, Romania can only tax Romanian-source income — not worldwide income — even if the person meets Romania’s domestic criteria for tax residence. This is why having a valid tax residence certificate from the other country and understanding the applicable treaty is critical.

Romania has over 90 double tax treaties. The specific tie-breaker language may vary slightly between treaties, so the actual treaty text must be checked in each case.

Tax Consequences of Romanian Tax Residence

Once an individual is established as a Romanian tax resident, they are subject to Romanian tax on their worldwide income. This is a fundamental change from non-resident status, where only Romanian-source income is taxable. The main categories of income that must be declared are:

The single declaration (declarația unică). Romanian tax residents must file an annual single declaration (declarația unică) with ANAF, reporting all income not already taxed through payroll withholding. This includes foreign-source dividends, interest, rental income, capital gains, self-employment income, and any other income received during the year. The declaration is due by 25 May of the year following the income year (the exact deadline may be adjusted). Tax due is also payable by this deadline.

Foreign tax credits. Tax paid abroad on foreign-source income can be credited against the Romanian tax liability, up to the amount of Romanian tax attributable to that income. This prevents full double taxation but requires documentation (foreign tax returns, withholding certificates, or payment confirmations). The credit cannot exceed the Romanian tax on the same income.

Tax Residence and Remote Work for a Foreign Employer

Remote workers who live in Romania while working for a foreign company face a specific set of tax-residence and payroll issues:

Tax residence. A remote worker living in Romania will almost certainly become a Romanian tax resident if they exceed 183 days or establish their centre of vital interests in Romania. The salary earned from the foreign employer becomes Romanian-taxable worldwide income.

Payroll obligations. If the foreign employer does not have a Romanian entity and does not register for Romanian payroll, the employee may be required to declare and pay their own Romanian income tax and social contributions through the single declaration. This involves monthly or quarterly estimated payments and annual reconciliation.

Social security. The general rule is that a person working in Romania is subject to Romanian social contributions (CAS and CASS). If the remote worker was previously employed in another EU country and the employer obtained an A1 certificate before the move, the worker may remain in the sending country’s social security system for up to 24 months. Without an A1, Romanian contributions apply from day one.

Permanent establishment risk for the employer. A foreign company whose employee works from Romania on a long-term basis may create a permanent establishment in Romania, exposing the company to Romanian corporate income tax on attributable profits. The risk increases if the employee has authority to conclude contracts or if the work constitutes a core business function. Both the employer and the employee should assess this risk before the arrangement begins.

Digital nomad visa holders. Non-EU nationals on Romania’s digital nomad visa are legally resident but their tax-residence position depends on the same criteria as any other foreign individual — 183 days, centre of vital interests, permanent home. Holding a digital nomad visa does not create or prevent tax residence automatically.

How to Obtain a Romanian Tax Residence Certificate

Once Romanian tax residence is established, the individual can request a certificate of tax residence (certificat de rezidență fiscală) from ANAF. The certificate is used to:

• Claim reduced withholding tax rates on foreign-source income under a double tax treaty (presented to the foreign payer or tax authority).
• Prove Romanian tax residence to foreign banks, brokers, and financial institutions for regulatory and tax-reporting purposes.
• Confirm residence status to the tax authority of another country when terminating residence there.

Application process. The certificate is requested from the ANAF office with jurisdiction over the individual’s tax address. The application must specify the tax period for which the certificate is needed (typically a calendar year). ANAF reviews the application and, if the individual’s tax-residence status is confirmed, issues the certificate within the prescribed timeframe.

Important limitation. The certificate confirms tax residence for a specific period. It does not replace the obligation to file tax returns and pay taxes. A certificate is a proof of status, not a compliance document.

How to Terminate Romanian Tax Residence

A foreigner who leaves Romania permanently or relocates to another country should formally terminate their Romanian tax residence. The process involves:

Form Z017. The Questionnaire for Establishing the Fiscal Residence of an Individual upon Departure from Romania (form Z017) must be submitted to ANAF. The questionnaire is the departure equivalent of the Z015 arrival questionnaire and asks about the individual’s new country of residence, the date of departure, the transfer of personal and economic ties, and the new permanent home.

Filing deadline. The questionnaire should be submitted within 30 days before the planned departure or within 30 days after departure. Early filing is advisable to ensure a smooth transition.

Supporting documents. ANAF may request a tax residence certificate from the new country of residence, proof of a permanent home abroad, evidence of the transfer of economic and family ties, and confirmation that Romania is no longer the centre of vital interests.

ANAF decision. ANAF reviews the questionnaire and issues a decision confirming or denying the termination of Romanian tax residence. The decision specifies the effective date from which the individual is no longer a Romanian tax resident.

Post-departure Romanian income. After terminating Romanian tax residence, the individual is classified as a non-resident. Any Romanian-source income received after that date — such as rental income from Romanian property, dividends from Romanian companies, or income from a Romanian business — remains taxable in Romania under the non-resident rules, typically through withholding at source.

Physical departure alone is not enough. Simply leaving Romania without filing Z017 does not automatically terminate tax residence. If the individual retains a permanent home, a Romanian company, or other ties, ANAF may continue to treat them as a Romanian tax resident. A clean, documented departure process is essential.

Common Mistakes Foreigners Make

• Equating residence permit with tax residence. A Romanian residence permit (issued by IGI) is an immigration document that authorises the holder to live in Romania. It does not automatically establish tax residence, and not having one does not prevent tax residence. Tax residence is determined by the Fiscal Code criteria — domicile, centre of vital interests, 183 days — not by immigration status.
• Counting only calendar years. The 183-day test applies to any 12 consecutive months, not to the calendar year. A person who arrives in July and stays through the following April may exceed 183 days in the rolling 12-month window without exceeding it in either calendar year. Counting only by calendar year can lead to a surprise tax-residence determination.
• Ignoring the centre of vital interests. Focusing exclusively on the 183-day count while gradually moving family, assets, and business activity to Romania is a common oversight. Tax residence can arise through the centre of vital interests well before 183 days are reached.
• Not filing form Z015. Failing to submit the arrival questionnaire within the required deadline is both a procedural violation (attracting penalties) and a missed opportunity to establish a clear record of when tax residence began. Proactive filing demonstrates compliance and avoids disputes.
• Not obtaining a foreign tax residence certificate. If the individual was a tax resident of another country before arriving in Romania, obtaining a certificate of tax residence from that country is critical. It is the primary evidence used in double tax treaty tie-breaker analysis. Without it, ANAF may default to applying Romanian residence rules without considering the treaty.
• Failing to declare foreign income. Once Romanian tax residence is established, all worldwide income must be declared — including foreign dividends, interest, rental income, capital gains, and cryptocurrency gains. Believing that income taxed abroad does not need to be reported in Romania is incorrect. The income must be declared, and a foreign tax credit claimed for the tax already paid.
• Assuming foreign tax eliminates Romanian obligations. Paying tax on foreign income in another country does not exempt the income from Romanian reporting. The foreign tax is creditable against the Romanian liability, but the income must still appear in the Romanian single declaration. Omitting it is a violation that can result in penalties and interest.
• Not terminating residence when leaving. Departing Romania without filing form Z017 and without formally closing the tax-residence relationship can result in ANAF continuing to treat the individual as a Romanian tax resident. This creates ongoing worldwide income reporting obligations that the individual may not be aware of until a tax audit or cross-border information exchange reveals the gap.

Frequently Asked Questions