A referral programme advertises a number: five percent of the sale, a fixed amount per signed client, a share of the first month. In Serbia, in 2026, that number is the least useful thing on the page. Two other facts decide what reaches your account, and neither of them is printed next to the rate: whether the company paying you is registered in Serbia or abroad, and whether the sector you are introducing customers into is one that Serbian law lets you work in under a light status at all.
The second point catches people out. The Zakon o porezu na dohodak građana names, in član 40, whole activities that are shut out of the flat-rate entrepreneur regime — and several of them are exactly the sectors where introduction money is biggest.
If you are building referral income alongside a job, I am Beezy is one way to keep something arriving in the quarters when commissions do not: you view content — videos, articles, advertising — and each view generates earnings paid to your usual payment method.
What follows compares sectors on what they leave you, not on what they promise.
Why the headline rate tells you almost nothing here
The rate is written abroad, the deductions are written in Belgrade
Most international affiliate programmes set one rate for the whole world. The deductions applied to it are national. In Serbia the personal income tax on independent activity is 10 percent, mandatory pension and disability contributions run at 24 percent, and health contributions at 10.3 percent — figures set by the Zakon o doprinosima za obavezno socijalno osiguranje, član 44, in the consolidated text published by the Ministry of Finance. A rate that looks generous in a global brochure can land in a completely different place once a Serbian status is applied to it.
Two questions decide your net, and the rate is neither of them
Ask them in this order. First: is my payer a Serbian legal entity, a Serbian entrepreneur or a branch of a foreign company? If yes, that payer withholds tax before the money moves, and you never touch the gross. Second: is the activity I am being paid for one that the flat-rate regime accepts? If not, a whole route is closed and the arithmetic changes before you have earned anything.
Which sectors are actually open to you?
What član 40 shuts out of the flat-rate regime
The flat-rate entrepreneur — the paušalac — pays 10 percent on an income the administration sets in advance, and may not exceed 6,000,000 dinars of turnover in the year preceding the tax year. That much is widely known. What is far less known is the exclusion list in the same article: advertising and market research, wholesale and retail trade, hotels and restaurants, financial intermediation and real-estate activities are named as ineligible. A commission earned for placing advertising, or for introducing borrowers to a lender, sits inside that list rather than outside it.
Reselling is not a commission, and neither route accepts it
People blur two very different things: earning a percentage for an introduction, and buying goods to sell them on at a margin. The second is trade. The Poreska uprava guide for the frilenseri portal says plainly that income from reselling purchased merchandise does not belong there, and član 40 excludes trade from the flat rate as well. If your plan is to buy stock and resell it, neither of the light routes in this article is the one you need.
Regulated sectors have a supervisor, not just a programme page
Banking, insurance, leasing, voluntary pension funds and payment institutions are all supervised in Serbia by a single body, the Narodna banka Srbije. That is a genuine difference from neighbouring markets, where insurance sits under a separate authority. An introduction fee offered in those sectors carries conditions that come from the supervisor, not from the company writing the offer. Read the programme terms with that in mind.
| Sector you refer into | Who usually pays you | Flat-rate route open? | What to check first |
|---|---|---|---|
| Software, SaaS, online tools | Foreign company | Generally yes | Whether the payer withholds anything at all |
| Advertising, market research | Either | Named as excluded in član 40 | How the activity will be classified |
| Banking, lending, insurance | Serbian entity | Financial intermediation is excluded | Supervisor conditions, published by the NBS |
| Real estate | Serbian agency | Real-estate activities are excluded | Whether you are an agent or an introducer |
| Retail, marketplaces, resale | Either | Trade is excluded | Whether you are paid a margin or a fee |
| Hospitality, restaurants | Serbian business | Excluded, with a narrow kiosk exception | The exact wording of član 40 |
Serbian payer or foreign payer: which one are you dealing with?
A Serbian company withholds before you see the money
When the payer is a Serbian legal entity, a Serbian entrepreneur or the branch of a foreign entity, tax is deducted at source. You receive a net amount and there is nothing to declare quarterly on your own behalf. This is administratively simple, and it is why domestic bank, insurance and telecom referral schemes feel effortless — the paperwork happened before the transfer.
A foreign network pays you gross, and the quarter is yours to handle
When the payer is abroad and withholds nothing in Serbia, the obligation moves to you. The Poreska uprava runs a dedicated portal for exactly this situation, frilenseri.purs.gov.rs, and its guide names three covered cases: a Serbian resident working in Serbia paid by a foreign payer, a Serbian resident working from another country for a foreign payer, and a non-resident working in Serbia for a foreign payer. Declaration is quarterly, in the month following the quarter — the portal has shown windows of 1 to 30 April for the first quarter of 2026 and 1 to 30 July for the second.
No income in a quarter means nothing to file
This matters more than it sounds for referral income, which is lumpy by nature. A quarter with no receipts produces no declaration and no payment under this regime. You are not signing up to a fixed monthly cost by taking one commission.
Filling the empty quarters with I am Beezy
How the earnings actually work
With I am Beezy you view content — videos, articles, advertising — and each view generates earnings, paid out to the payment method you already use. Active users report 5 to 15 euros a day. At the official middle rate published by the Narodna banka Srbije for 5 August 2026, 1 euro was 117.3836 dinars, which puts that range at roughly 590 to 1,760 dinars a day. The dinar is stable against the euro but it is not pegged, so check the rate on the day rather than trusting a converted figure in an article.
Where a small steady amount fits the quarterly arithmetic
Referral income arrives in bursts. The costs attached to it do not. Something that arrives daily lets you cover a quarter's health contribution or an accountant's fee without touching the commission itself, which is the difference between a side income you keep and one that funds its own admin.
Option 1 or option 2 — which costs you less this quarter?
The two options, and the threshold that separates them
Under the frilenseri regime you pick your option for each quarter separately, not once for the year. That is unusual and it is worth using. Option one deducts a fixed lump-sum expense allowance from your quarterly gross, then applies 20 percent tax and 24 percent pension contributions to what is left. Option two deducts a smaller fixed allowance plus 34 percent of the gross, then applies 10 percent tax — but imposes a pension floor that is due even if you earned nothing.
| What you compare | Option 1 | Option 2 |
|---|---|---|
| Lump-sum expense allowance per quarter | 110,647 RSD | 66,733 RSD plus 34% of gross |
| Income tax rate | 20% | 10% |
| Pension contribution | 24% of the remaining base | 24%, with a floor of at least 25,218 RSD per quarter |
| Cost of a quarter with no income | Nothing under this regime | The pension floor still applies |
| Suits | Irregular, modest commission income | High and regular income |
Below 110,647 dinars of receipts in a quarter, option one produces no income tax and no pension contribution at all. The two allowance figures above apply from 1 February 2026 to 31 January 2027 and were set by the government act published in Službeni glasnik RS number 6/2026, adopted on 22 January 2026. They are indexed annually, so a figure you read in an older article is very likely the previous year's.
Health insurance: only if you are not covered elsewhere
The 10.3 percent health contribution is due under this regime only if you are not already insured on another basis — through employment, for instance, or an international social security agreement. Where it is due, the minimum works out at 4,789 dinars per quarter. If you hold a job and are referring on the side, this line often does not apply to you at all.
The two prices nobody puts in the brochure
A declared frilenser cannot remain registered as unemployed with the Nacionalna služba za zapošljavanje. And because unemployment contributions are not payable under this regime, no unemployment entitlement is built through it. Neither point is a reason to avoid the regime, but both belong in the decision before you register rather than after.
Four checks before you accept any programme
Run them in this order
One: identify the payer's country of registration, because it decides whether anything is withheld. Two: name the activity you are actually performing, and read član 40 against it. Three: estimate a realistic quarterly total, not an annual one, since the option is chosen quarterly. Four: check whether you are already covered for health insurance, which removes or keeps a fixed cost. Only then look at the percentage.
Where to look things up
The consolidated texts of the income tax and contributions laws are published by the Ministarstvo finansija. The Poreska uprava publishes the frilenseri guide and also hosts a calculator for flat-rate tax and contributions on its own site, which is a better starting point than a forum thread. Programme terms themselves should be read on the company's page, in full, including the clause on when a commission is considered earned.
What to write down before you start
Keep a one-line record per commission: date received, payer, country, gross amount. That single habit turns the April, July, October and January declaration windows into a ten-minute task instead of an archaeology project. Commission income that you cannot document is commission income you will overpay on.
The honest summary is that sector choice in Serbia is a legal question before it is a financial one. A four percent rate in a sector your status accepts, paid quarterly by a foreign network in a quarter that stays under the allowance, can leave you more than a ten percent rate in a sector that closes the light routes and forces a heavier structure. Work out the status first, then the arithmetic, then the rate. And if you want a steady base underneath the irregular part, I am Beezy pays for the content you view, which is one less quarter spent waiting on someone else's payment terms.
