Serbia Tax Residency & Double Taxation: The 183-Day Rule

Spend enough time in Serbia and you become a Serbian tax resident — which means Serbia can tax your worldwide income, not just what you earn locally. The good news: Serbia has a wide network of double-taxation treaties that stop you being taxed twice on the same income. The exception that needs special care is US citizens.

When do you become a Serbian tax resident?

You are generally treated as a Serbian tax resident if either of these is true:

The 183-day rule — you spend 183 days or more in Serbia within a 12-month period (continuously or in total).
Centre of vital interests — your home, family and main economic life are in Serbia, even if you travel a lot.

This is a tax concept and is separate from your immigration status and from how your business is taxed. You can hold a residence permit and be a paušalac without automatically having sorted out your global tax position — they are different questions.

    Why it matters: once you're a Serbian tax resident, Serbia taxes your worldwide income; if you're a non-resident, generally only your Serbia-source income. Knowing which side of the line you're on — and when you crossed it — is the foundation of getting your taxes right.
  

How double-taxation treaties protect you

Serbia has signed double-taxation treaties (DTAs) with a large number of countries — well over sixty. These treaties decide which country gets to tax a given type of income, and provide relief (usually by exempting the income in one country or giving you a credit for tax paid in the other) so the same euro isn't taxed twice.

Whether a specific treaty exists with your country, and exactly how it treats your type of income (employment, freelance, dividends, pensions, rent), is something to check case by case. To claim treaty relief you typically also need a tax-residency certificate from the relevant authority.

The US is the big exception

US citizens are taxed by the US no matter where they live. The United States taxes its citizens on worldwide income even while resident abroad, and there is currently no double-taxation treaty and no totalisation (social-security) agreement between the US and Serbia. That combination can create real exposure.

For an American living in Serbia this means:

You keep filing US tax returns every year.
The Foreign Earned Income Exclusion (FEIE) and the foreign tax credit can remove or reduce US income tax on your foreign earnings — but they must be claimed correctly.
Self-employed Americans can face US self-employment tax on top of Serbian contributions, because there's no totalisation agreement to avoid the overlap.
You should use a US expat tax specialist alongside Serbian advice. See our guide for Americans.

The practical questions people get wrong

Assuming a residence permit automatically settles their tax position (it doesn't).
Not realising they became a Serbian tax resident, and missing filing obligations.
Not claiming treaty relief and paying tax twice unnecessarily.
Forgetting their home country may still consider them tax-resident until they formally break it.

This is genuinely the area where professional help pays for itself — the interaction of two tax systems is not something to improvise.

Worried about being taxed twice? Marko helps foreigners get their Serbian tax-residency position and treaty relief right (and coordinates with your home-country advisor) — in fluent English, at local rates. Message Marko on WhatsApp with your nationality and how much time you spend in Serbia.

This is general guidance, not tax or legal advice. Residency rules, treaty networks and US tax provisions change and depend on your circumstances — always confirm with a qualified tax professional.

Last updated: June 2026.

Official sources: Serbian Tax Administration · IRS — Foreign Earned Income Exclusion