Before you start

Residence permit and a Serbian tax identification number
Determination of Serbian tax residence
Employer payroll registration, or registration as an entrepreneur or self-taxing freelancer
Records of foreign income

Step-by-step

1
Establish whether you are a Serbian tax resident
Serbia applies the usual tests including a centre of business and vital interests and presence over 183 days in a twelve-month period. Residence brings worldwide income into scope. Serbia has a wide treaty network but it is not the EU network, so check the specific treaty rather than assuming.
OnlineWho: You
2
Let payroll handle it if you are an employee
Employers withhold the 10% salary tax on the amount above the monthly non-taxable threshold, plus employee contributions of around 19.9%, and file monthly. Most employees have nothing to submit.
Via employerWho: You
3
Choose your freelancer model each quarter if you self-tax
The self-taxation regime offers two models, declared quarterly. One applies a larger fixed deduction and a higher tax rate; the other applies a smaller fixed deduction plus a 34% standardised-cost deduction and a lower rate. You may switch between them quarter to quarter, which means the right choice depends on how lumpy your income is.
OnlineWho: YouQuarterly
4
Or register as an entrepreneur under the flat-rate regime
The paušal regime for registered sole traders sets tax and contributions as a fixed monthly amount based on activity and location rather than on actual profit. It is popular with IT contractors, capped by turnover, and closed to some activities.
OnlineWho: You
5
File the annual personal income tax return if you clear the threshold
A separate annual tax applies to individuals whose total net income for the year exceeds three times the average annual salary, at 10% up to six times and 25% above. People under 40 get an additional deduction equal to three average annual salaries, which removes many of them from it entirely.
OnlineWho: YouAnnually
6
Take advice on the independence test before structuring as a contractor
The Tax Administration applies criteria to decide whether an entrepreneur is genuinely independent or is a disguised employee. Failing the test brings a punitive withholding treatment. If you have a single client who directs your work and provides your tools, this applies to you.
OnlineWho: You

Documents you’ll need

Tax identification number
Residence permit
Employer income certificates or quarterly self-taxation filings
Records of foreign income and treaty positions
Business registration documents, if an entrepreneur

Things most newcomers don’t know

The 2023 freelancer regime ended a genuine legal crisis, and its most useful feature is the quarterly choice.

For years Serbia's large population of foreign-client contractors operated with no clear treatment, culminating in retroactive assessment attempts that became a national controversy. The regime in force from 1 January 2023 gives two self-taxation models, filed quarterly, with a different balance of fixed deduction and rate. Crucially you may choose a different model in each quarter — so someone with one large invoice and three quiet quarters can optimise in a way that a single annual election would not allow. Very few people model this and most simply pick one and stay.

Source: Tax Administration — freelancer portal

The under-40 deduction takes most young high earners out of the annual surcharge entirely.

Serbia's annual personal income tax applies above three times the average annual salary at 10%, and above six times at 25%. Taxpayers under 40 receive an additional deduction equal to three average annual salaries against employment and self-employment income. In practice that means a well-paid engineer in their thirties frequently owes nothing under the annual tax while an equally paid colleague over 40 does. It is claimed on the return, not applied automatically.

Source: Tax Administration

The independence test is what determines whether a contractor arrangement survives scrutiny.

Serbia applies statutory criteria — who directs the work, who provides the tools and premises, whether there is a single dominant client, whether the engagement is continuous — to decide if a registered entrepreneur is really an employee. Failing it triggers a punitive treatment that is far worse than either ordinary employment or ordinary self-employment. A relocated worker who registers a Serbian sole trader and then invoices only their former employer is squarely within the target.

Source: Tax Administration

Serbia is outside the EU for VAT, which changes how you invoice foreign clients.

An EU freelancer invoicing an EU business applies the reverse charge and the whole thing is routine. From Serbia, invoicing into the EU is a third-country export, with different documentation, different treatment at the client's end and a Serbian VAT registration threshold to watch as your turnover grows. Advice that works for a Portuguese or Croatian freelancer does not transfer.

Source: Tax Administration

Common mistakes to avoid

Picking one freelancer self-taxation model and never revisiting it quarter by quarter.
Missing the under-40 deduction on the annual return.
Structuring as an entrepreneur with a single dominant client and failing the independence test.
Applying EU VAT reasoning to invoices issued from Serbia.
Assuming last year's non-taxable salary amount and annual thresholds still apply.

Some of this may be out of date. Spotted something inaccurate? Help us keep it right for the next newcomer.