Tax residency in Serbia: who is a resident, the 183-day rule, double taxation treaties and the residency certificate
Who is a Serbian tax resident (home, centre of interests or 183 days), what residents and non-residents pay, how a double taxation treaty breaks a tie, and how to get a certificate of residency.
What you need to know
Tax residency answers one question: which country is owed tax on your total income. Under the Personal Income Tax Act, Serbia taxes its residents on income earned anywhere in the world and non-residents only on income sourced in Serbia (Arts. 7(1) and 8). Status matters more than citizenship: a Serbian citizen living and working in Germany is normally a non-resident of Serbia, while a foreigner who has moved to Belgrade with their family is a resident.
The Act gives two grounds for residency and either is enough (Art. 7(2)). The first is a domicile or the centre of business and personal interests in Serbia. The second is presence of 183 or more days, continuously or with breaks, in a 12-month period that begins or ends in that tax year. The 12-month window is rolling, not the calendar year, so days from two years add up.
The problem arises when two countries both count you as their resident under their domestic rules, which is common in the year of a move and for people working from Serbia for a foreign employer while their family is elsewhere. This is where the double taxation treaty comes in. It overrides domestic law and sets out the order in which the conflict is resolved: permanent home, then centre of vital interests, then habitual abode, then nationality, and finally agreement between the two tax authorities. The treaty also allocates taxing rights by type of income, and for dividends, interest and royalties usually caps the withholding rate in the source country.
Where there is no treaty, or there is one but tax was still paid in both countries, a Serbian resident credits the foreign tax against Serbian tax, but only up to the amount Serbia would charge on the same income (Art. 12). Nobody refunds the excess.
Income from abroad: who declares it and how
A Serbian payer withholds tax at source, so the recipient does nothing. A foreign payer does not, so a Serbian resident declares foreign income by self-assessment. Fees for work and royalties from a foreign payer are declared quarterly on form PP OPO-K, with a choice of two standard expense models, as described in detail on the freelancer tax page. Salary from employment with a foreign employer, dividends, interest and capital gains from abroad are declared on form PP OPO within the deadlines in Art. 95. If total annual income exceeds three times the average annual salary, the annual return is also filed by 15 May of the following year (Arts. 87(1) and 92(1)).
A non-resident, conversely, declares in Serbia only Serbian-source income: rent from a flat in Belgrade, the sale of property, a dividend from a Serbian company, work physically performed in Serbia. The payer or the non-resident applies the domestic rate to that income, unless the non-resident gives the payer a certificate of residency from their own country, in which case the treaty rate applies (Art. 159a(1) of the Tax Procedure Act).
The certificate of residency
Serbian residency is proved towards other countries with a certificate issued by the Tax Administration on a form prescribed by the Minister of Finance (Art. 159a(2) to (4) of the Tax Procedure Act); in practice this is form POR-1. It is requested for a specific year and a specific payer or country, and the foreign payer uses it to apply the treaty rate instead of its full withholding rate. If a foreign tax authority insists on its own form, the Tax Administration certifies that form too.
In the other direction, a resident of another country proves their status with a certificate certified by that country's tax authority, on a special form (in practice POR-2) or with a certified translation of the certificate on the form that country prescribes (Art. 159a(1)). Without the certificate the Serbian payer applies the full domestic rate, and the non-resident has to claim the difference back afterwards, which is slower and less certain.
Stays of up to 90 days: the exemption for work for a foreign principal
An amendment introduced an exemption covering short stays by digital nomads and foreign employees: the income of a non-resident who spends at most 90 days in Serbia in a 12-month period is exempt from tax, provided the non-resident principal carries on no business in Serbia, or does but the service supplied does not serve that business (Art. 9b(1) and (2)). Beyond 90 days the exemption falls away for the whole income, and from 183 days residency kicks in. A residence permit under the Foreigners Act and tax residency are separate matters: the Foreigners Act governs whether you may be in Serbia, the Personal Income Tax Act governs whom you pay tax to.
When to see a tax adviser
When you move out of or into Serbia mid-year and need to establish from which day and on which ground your status changes; when two countries both treat you as a resident and the treaty rules have to be applied and the centre of vital interests documented; when you receive several kinds of foreign income (salary, dividends, stock options, interest, capital gains) and need to separate what is declared on which form and how much credit is allowed; when a foreign employer or bank asks for a certificate of residency and it is unclear which form and for which year; or when you failed to declare foreign income in earlier years and want to settle it before an audit.
Sources
- Personal Income Tax Act (Zakon o porezu na dohodak građana, Sl. glasnik RS Nos. 24/2001 ... 6/2026 - indexed amounts and 80/2026), Arts. 7, 8, 9b, 12, 87, 92 and 95
- Tax Procedure and Tax Administration Act (Zakon o poreskom postupku i poreskoj administraciji, Sl. glasnik RS No. 80/2002 et seq.), Arts. 159a and 180
- Ministry of Finance: double taxation treaties, texts by country
- Tax Administration: double taxation treaties, individuals
- Frilenseri portal: declaring income from a foreign payer
- Personal Income Tax Act and Tax Procedure Act, consolidated texts (paragraf.rs), used to check the wording of individual articles
What to do
- Establish your status under Serbian law: do you have a domicile or the centre of your business and personal interests in Serbia (family, home, job, company, bank accounts), or did you spend 183 or more days in Serbia in any 12-month period touching that tax year. Either ground on its own is enough (Art. 7(2)).
- Run the same test under the law of the other country where you live or work; every country has its own rules, and both may treat you as a resident in the same year.
- If both countries claim you, check whether Serbia has a double taxation treaty with that country; the Ministry of Finance publishes the list. The treaty overrides domestic law and contains tie-breaker rules (permanent home, centre of vital interests, habitual abode, nationality, mutual agreement of the tax authorities).
- For each item of foreign income, check whether Serbia taxes it, whether the treaty allocates it to the other country or caps the withholding rate, and whether tax has already been paid there; a resident credits foreign tax against Serbian tax on that income, up to the Serbian amount (Art. 12).
- If you receive income from abroad on which no Serbian payer withholds tax, declare it yourself: fees for work and royalties from a foreign payer quarterly on form PP OPO-K, other income within the deadlines in Art. 95.
- If a foreign payer or a foreign tax authority asks for proof that you are a Serbian resident, request a certificate of residency from the Tax Administration; if you are resident elsewhere and want the treaty applied to your Serbian-source income, provide a certificate of residency certified by your country's tax authority (Art. 159a of the Tax Procedure Act).
- If you are a foreign national working from Serbia for a non-resident principal that carries on no business in Serbia, and you spend at most 90 days in Serbia in any 12 months, that income is exempt from Serbian tax (Art. 9b); beyond 90 days the exemption falls away and the general test applies.
- Keep evidence of your stays (travel documents, leases, registered addresses, bank statements) and of tax paid abroad (assessments, payer statements), because both residency and the foreign tax credit are proved with documents.
What it costs
The certificate of residency is issued by the Tax Administration on request; the request carries a republic administrative fee under the Republic Administrative Fees Act, and the Tax Administration publishes the current amount each year. On the tax side: a resident whose foreign income was taxed at a rate higher than the Serbian one does not get the difference back, because the credit cannot exceed the Serbian tax on that income. Anyone who fails to declare foreign income pays the tax with interest from the due date, and failing to file is an offence (Art. 180 of the Tax Procedure Act). A tax adviser's fee for a residency analysis and a written opinion is not regulated and is agreed in advance.
FAQ
How are the 183 days counted for Serbian tax residency?
You count days spent in Serbia, continuously or with breaks, in any 12-month period that begins or ends in the tax year in question (Art. 7(2)(2) of the Personal Income Tax Act). The period therefore does not have to match the calendar year: someone who arrived in October and stayed until the following June crosses 183 days in a window ending in the second year. The Act does not say how arrival and departure days are counted, so travel documents, registered stays and leases serve as evidence. The 183-day rule is only one of two grounds: a person with a domicile or the centre of their business and personal interests in Serbia is a resident with fewer days of presence.
What is the centre of business and personal interests?
The Act does not define the term, so it is judged on the facts: where your spouse and children live, where you have a home permanently available to you, where you work or run a company, where your accounts, assets, insurance and social ties are. Double taxation treaties use a similar concept, the centre of vital interests, as the second step in resolving a residency conflict, after the permanent home. Someone who leaves Serbia but keeps family, a home and a company here easily remains a Serbian resident on this ground even after more than 183 days abroad.
What if both Serbia and another country treat me as a resident?
If there is a double taxation treaty with that country, its tie-breaker rules apply in order: the country where you have a permanent home; if you have one in both, the country with which your personal and economic relations are closer (centre of vital interests); if that cannot be determined, the country where you have a habitual abode; then nationality; finally mutual agreement between the two tax authorities. You are a resident only of the country that comes out first, and the other treats you as a non-resident for treaty purposes. If there is no treaty, both countries apply their own law in full, and Serbia credits foreign tax under Art. 12 of the Personal Income Tax Act.
How many double taxation treaties does Serbia have?
The Ministry of Finance publishes the texts of treaties with 64 countries and jurisdictions, including every EU member state, the United Kingdom, Switzerland, Norway, Canada, China, India, Russia, Türkiye, the United Arab Emirates and Hong Kong. Serbia has no double taxation treaty with the United States, so for US-source income only the domestic foreign tax credit applies. Check the text of the treaty for your country: withholding rates on dividends, interest and royalties and the rules for employment income differ from treaty to treaty.
Do I pay Serbian tax on a salary from a foreign employer if I work from Serbia?
If you are a Serbian resident, yes: a resident is taxed on income earned anywhere (Art. 7(1)). Since a foreign employer does not withhold Serbian tax, you declare it yourself by self-assessment; a fee for work from a foreign payer goes through the quarterly return PP OPO-K with one of the two standard expense models, while salary under an employment contract with a foreign employer goes through return PP OPO. Any tax the employer withheld in its own country is credited up to the Serbian tax. The exception is a foreign national working from Serbia for a foreign principal for at most 90 days in 12 months: that income is exempt under Art. 9b.
How do I get a Serbian certificate of tax residency?
You apply to the Tax Administration, which under Art. 159a(4) of the Tax Procedure and Tax Administration Act issues the certificate on the prescribed form (in practice form POR-1), or on the form prescribed by the other treaty country if its tax authority requires its own. The certificate is issued for a given year and a given country and income, and lets a foreign payer or tax authority apply the treaty, for example a reduced withholding rate on dividends or royalties. In the other direction, a non-resident who wants the treaty applied to Serbian-source income gives the payer a certificate of residency certified by their own country's authority, on a special form or with a certified translation (Art. 159a(1)).
Does a digital nomad in Serbia pay tax?
It depends on the length of stay and status. A foreign national working from Serbia for a non-resident principal that carries on no business in Serbia, and who spends at most 90 days in Serbia in any 12-month period, pays no Serbian tax on that income (Art. 9b). Beyond 90 days the exemption falls away, and from 183 days of presence the person becomes a Serbian resident taxed on worldwide income, with a credit for tax paid elsewhere. Immigration status under the Foreigners Act and tax residency are two separate questions: a residence permit does not make you a resident, and a tourist stay without one does not exclude it.