Paušalac vs Knjigaš: Which Serbian Tax Regime Is Right for You?

Last updated: March 2026. Reflects current legislation under the Zakon o porezu na dohodak građana ("Sl. glasnik RS", br. 80/2002, with amendments) and the Uredba o bližim uslovima za paušalno oporezivanje ("Sl. glasnik RS", br. 94/2019, with amendments).

When you register a preduzetnik in Serbia, you face a fundamental choice: paušalno oporezivanje (lump-sum taxation) or vođenje poslovnih knjiga (full bookkeeping). Most new entrepreneurs default to paušal because it's simpler and cheaper — and for many, that's the right call. But not always. Depending on your revenue level, expense structure, and growth plans, full bookkeeping can actually leave you with more money in your pocket.

This guide compares both regimes side by side: how taxes are calculated, what obligations each imposes, where the break-even points are, and who genuinely benefits from each.

The core difference in one sentence

Paušalac: You pay taxes on a fictional income (paušalni prihod) that the Tax Authority assigns based on your activity code, location, and other factors — regardless of how much you actually earn.

Knjigaš: You pay taxes on your actual profit — revenue minus documented business expenses — just like a traditional business.

This single distinction drives everything else. When your actual expenses are low (as is common for IT freelancers working from home), the paušal system's fictional income is often lower than your real profit, making paušal cheaper. When you have significant legitimate expenses (office rent, employees, equipment, subcontractors), bookkeeping lets you deduct them, potentially reducing your tax base below what the paušal system would assess.

Side-by-side comparison

Aspect	Paušalac	Knjigaš (bookkeeping)
Tax base	Assessed paušalni prihod (fictional, set by Tax Authority)	Actual profit = revenue − documented expenses
Income tax rate	10% of paušalni prihod	10% of actual profit
Social contributions	~35.05% of paušalni prihod (PIO 24%, health 10.30%, unemployment 0.75%)	~35.05% of actual profit (same rates, but base differs)
Total tax burden	~45.05% of paušalni prihod	~45.05% of actual profit
Revenue limit	6,000,000 RSD/calendar year	No limit
PDV (VAT) threshold	8,000,000 RSD rolling 12 months (same for both)	8,000,000 RSD rolling 12 months
Bookkeeping obligation	KPO knjiga only (revenue log)	Full double-entry bookkeeping (requires accountant)
Tax return	None (Tax Authority issues rešenje)	Annual PPDG-1S return
Expense deduction	Not allowed — the system assumes standardized expenses	All legitimate business expenses deductible with documentation
Accountant required?	No (but recommended for complex situations)	Yes — practically mandatory
Monthly accountant cost	€0–50 (optional advisory)	€80–200+ depending on transaction volume
Tax determination	Tax Authority issues rešenje automatically each January	You (or your accountant) calculate and file
First-year discount	50% reduction of assessed base	No automatic discount (but startup expenses are deductible)
Annual base increase cap	Max 10% year-over-year (through end of 2027)	No cap — based on actual profit
Eligible activities	Most services and crafts; excluded: wholesale/retail, hospitality, finance, advertising, market research	All activities
Can register for PDV voluntarily?	No — PDV registration terminates paušal status	Yes

How taxes actually work: paušalac

The Tax Authority calculates your paušalni prihod (assessed lump-sum income) using a formula defined in the Uredba o bližim uslovima, kriterijumima i elementima za paušalno oporezivanje. The formula considers:

Average wage in your municipality
Activity code coefficient — each šifra delatnosti has a multiplier (e.g., IT consulting might be 2.5x, translation 1.2x)
Corrective factors: registered location zone, entrepreneur's age (under 30 gets 0.7 coefficient, under 55 gets 0.9), time since registration (first year: 0.5 coefficient), disability status

The result is your monthly paušalni prihod. Your taxes are 45.05% of this figure. You pay the same amount every month regardless of whether you earned €10,000 or €0 that month.

Example — IT consultant in Belgrade, activity code 6201, 3rd year of operation:

Assessed monthly paušalni prihod: ~45,000 RSD (varies, this is illustrative)
Monthly income tax (10%): ~4,500 RSD
Monthly PIO (24%): ~10,800 RSD
Monthly health (10.30%): ~4,635 RSD
Monthly unemployment (0.75%): ~338 RSD
Total monthly obligation: ~~20,273 RSD (~~€173)
Annual total: ~~243,270 RSD (~~€2,076)

If this entrepreneur actually earns €48,000/year (€4,000/month), their effective tax rate is approximately 4.3% of gross revenue. This is why paušal is so attractive for high-earning, low-expense service businesses.

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How taxes actually work: knjigaš

A knjigaš pays taxes on actual profit — revenue minus all legitimate, documented business expenses. The rates are the same (10% income tax + 35.05% contributions), but the base is different.

Example — same IT consultant, same €48,000/year revenue, minimal expenses:

Annual revenue: €48,000 (~5,620,000 RSD)
Documented expenses: €3,600/year (internet, phone, minor equipment, co-working occasionally) = ~421,000 RSD
Taxable profit: 5,199,000 RSD
Income tax (10%): 519,900 RSD
Social contributions (35.05%): 1,822,250 RSD
Total annual obligation: ~~2,342,150 RSD (~~€20,000)

Effective tax rate: approximately 41.7% of gross revenue. Compare that to the paušalac's 4.3%. The difference is staggering — approximately €18,000/year more in taxes for the same revenue, simply because the knjigaš pays on actual profit while the paušalac pays on a much lower assessed base.

Note on contribution caps: Social contributions have a maximum monthly base (currently ~5x the average wage, roughly 600,000 RSD/month). For very high earners, this cap limits the absolute amount of contributions. But for most preduzetnici earning under €100K/year, the cap doesn't come into play.

When knjigaš actually wins: the expense scenario

The math changes dramatically when significant business expenses enter the picture.

Example — marketing consultant with high expenses:

Annual revenue: €60,000 (~7,020,000 RSD)
Paušal status: Not available — revenue exceeds 6M RSD limit. Must be knjigaš.
Documented expenses: office rent €6,000, subcontractors €15,000, travel €4,000, equipment €3,000, other €2,000 = €30,000 (~3,510,000 RSD)
Taxable profit: 3,510,000 RSD
Total tax obligation: ~~1,587,000 RSD (~~€13,560)
Effective rate: ~22.6% of gross revenue

In this case, the entrepreneur has no choice (revenue exceeds 6M), but the high expense ratio makes bookkeeping manageable — deducting €30,000 in real expenses significantly reduces the tax base.

Another example — low-revenue knjigaš with high expenses:

Annual revenue: €25,000 (~2,925,000 RSD)
Could be paušalac (under 6M) — let's compare both options
Documented expenses: €12,000 in subcontractor costs, €3,000 in equipment = €15,000 (~1,755,000 RSD)
As knjigaš: taxable profit = 1,170,000 RSD → total tax ~~528,585 RSD (~~€4,517)
As paušalac: assessed base ~45,000 RSD/month → total tax ~~243,270 RSD (~~€2,076)

Even with 60% of revenue going to expenses, paušal is still cheaper because the assessed base is so low. The knjigaš option only starts winning when expenses are very high AND the assessed paušal base would be comparable to or higher than actual profit.

Break-even analysis: when to switch

The break-even point depends heavily on your specific paušalni prihod (which varies by activity, location, and personal factors). But as a general guide:

Scenario	Paušal better?	Knjigaš better?
Revenue < 6M RSD, low expenses (< 20% of revenue)	Almost always	No
Revenue < 6M RSD, moderate expenses (20–50%)	Usually	Unless assessed base is unusually high
Revenue < 6M RSD, very high expenses (> 60%)	Compare carefully	May win if profit < paušalni prihod
Revenue > 6M RSD	Not eligible	Only option
Need to hire employees	Not practical	Necessary
Need PDV (VAT) registration	Incompatible	Required
Want to deduct equipment, travel, rent	Not possible	All deductible
Multiple activity types incl. restricted ones	May be ineligible	No restrictions

The simple heuristic: If you're a service-based business earning under €50,000/year with low overhead, paušal is almost certainly cheaper. If you have significant documented expenses (subcontractors, office, equipment) that exceed 50–60% of revenue, or if you're approaching/exceeding the 6M limit, run the numbers for your specific situation.

Obligations comparison: the real daily difference

Beyond tax amounts, the two regimes impose very different administrative burdens:

As a paušalac, you must:

Maintain a KPO knjiga (10 minutes per invoice)
Make 4 monthly bank transfers (5 minutes with templates)
Track revenue vs 6M and 8M limits
That's it. No annual tax return, no expense documentation, no accountant.

As a knjigaš, you must:

Maintain full double-entry bookkeeping (practically requires an accountant)
Collect and organize all expense receipts and invoices
File the annual PPDG-1S tax return
Maintain poslovne knjige (business books) per accounting standards
Potentially file periodic PDV returns (if VAT-registered)
Track depreciation of assets
Maintain a register of fixed assets

The administrative burden of bookkeeping costs both money (€80–200/month for an accountant) and time (organizing documents, communicating with your accountant, reviewing statements).

Switching between regimes

Paušalac → Knjigaš

This happens either voluntarily or by force:

Forced: Your revenue exceeds 6M RSD. You transition to bookkeeping from July 1 (if exceeded in H1) or January 1 of next year (if H2).
Voluntary: You can choose to switch at any time by notifying the Tax Authority. Reasons might include wanting to deduct expenses, needing PDV registration, or entering a restricted activity.

Knjigaš → Paušalac

If your previous year's revenue was under 6M RSD and you meet all eligibility criteria, you can apply for paušal status by October 31 for the following year. The Tax Authority reviews your application and issues a decision.

The transition isn't always smooth. Going from knjigaš to paušalac means you stop deducting expenses mid-stream, which can have implications for assets, ongoing contracts, and PDV obligations (if you were registered). Consult an accountant before switching.

The DOO alternative (brief note)

Some entrepreneurs outgrow the preduzetnik form entirely and register a DOO (društvo sa ograničenom odgovornošću — limited liability company). This is a separate legal entity with different tax treatment: 15% corporate profit tax + personal income tax on distributed profits (dividend tax 15%). The effective rate on distributed profits is approximately 25–28%, which can be lower than knjigaš rates for high-earning businesses — plus the DOO provides limited liability.

A full DOO comparison is beyond this article's scope, but if you're earning above €70–80K and growing, it's worth modeling with an accountant.

Key takeaways

Paušal wins on simplicity and usually on cost for service businesses under €50K/year with low expenses. The assessed base is typically far below actual income.
Knjigaš wins when expenses are high relative to revenue, or when you exceed the 6M limit, need PDV, or require expense deductions for business planning.
The administrative burden gap is significant. Paušal: 30 minutes/month, no accountant needed. Knjigaš: ongoing accountant relationship, document management, annual returns.
Run the numbers for your specific situation. The general heuristic is useful, but your actual paušalni prihod (which depends on activity code, municipality, and personal factors) determines the real comparison.
Switching is possible but plan ahead. Paušalac → knjigaš can be forced or voluntary. Knjigaš → paušalac requires an October 31 application and meeting all eligibility criteria.