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Sole Proprietorship in Bulgaria: Fiscal Overview (2026)

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Last manual review: February 06, 2026 · Learn more →

Bulgaria doesn’t make it hard to register as a freelancer. That’s refreshing. If you’re tired of bureaucratic mazes and want to test the waters as a self-employed individual in Europe, BG offers a straightforward path. The status is called Svobodna profesiya (Свободна професия), which translates roughly to “free profession” or freelance work. I like that name. It sounds almost… libertarian.

But don’t let the name fool you. You’re still in the EU, and the state will want its cut.

What Is Svobodna Profesiya?

This is Bulgaria’s version of sole proprietorship. You operate under your own name. No need to create a legal entity. You invoice clients, you collect payments, you file taxes. Simple. The National Revenue Agency (NRA) oversees registration and compliance, and you’ll need a BULSTAT number—think of it as your business identifier—from the Registry Agency.

Registration is fast. Usually a few days. You can do it online or in person. No minimum capital required. No corporate formalities. Just you and the tax authorities.

That’s the good news.

The Tax Reality

Now let’s talk numbers. Bulgaria has a flat 10% personal income tax. That sounds attractive, and it is—on paper. But here’s the catch: the taxable base is calculated after a statutory 25% deduction for “recognized expenses.” This is automatic. You don’t need receipts. The state just assumes 25% of your gross income went to business costs.

Do the math: If you earn BGN 10,000 (~$5,700 USD), your taxable base is BGN 7,500. You pay 10% on that, which is BGN 750. Effective tax rate on your total revenue? 7.5%.

That’s competitive. Especially in the EU.

But wait. There’s more.

Social Security: The Silent Killer

Bulgaria requires mandatory social security contributions. This is where the system bites. You must choose a monthly insurance base between BGN 1,077 (~$615 USD) and BGN 4,130 (~$2,360 USD) for 2025. The contribution rate ranges from approximately 27.8% to 31.3% of that base, depending on your activity and insurance scheme.

Let me be clear: this is not a percentage of your actual income. It’s a fixed monthly payment based on the income level you declare to the social security fund. You can choose the minimum, but you’re still paying around BGN 300-335 per month (~$171-$191 USD). Every month. Even if you earn nothing.

Annually, that’s roughly BGN 3,600-4,020 (~$2,057-$2,297 USD) in mandatory contributions. Add your income tax, and suddenly Bulgaria isn’t as cheap as it looked.

Cost Component Rate / Amount (BGN) USD Equivalent
Income Tax 10% (on 75% of gross) Effective ~7.5% on revenue
Social Security (Min. Base 2025) ~BGN 300-335/month ~$171-$191/month
Social Security (Annual Min.) ~BGN 3,600-4,020 ~$2,057-$2,297
Annual Income Tax (on BGN 50,000 revenue) BGN 3,750 ~$2,143
Total Annual Cost (Low Earner) BGN 7,350-7,770 ~$4,200-$4,440

This table assumes BGN 50,000 (~$28,571 USD) in annual revenue and minimum social contributions. Your mileage will vary.

The Turnover Threshold

There’s a cap. If your annual turnover exceeds BGN 100,000 (~$57,143 USD), you are required to register for VAT. That adds compliance complexity. Monthly filings. Invoicing changes. More paperwork. More exposure to audits.

Stay under that limit if you value simplicity.

Why I Still Consider Bulgaria

Despite the social security burden, Bulgaria remains one of the cheapest EU jurisdictions for freelancers. The 10% flat tax is real. The bureaucracy is manageable. The cost of living is low, especially outside Sofia. If you’re a digital nomad or remote worker with EU clients, you can operate legally here without the overhead of a company.

And let’s be honest: paying around $4,000-$5,000 USD per year in combined taxes and social security for a legal EU base is not bad. Compare that to Germany, Belgium, or Sweden. You’d be drowning.

But here’s my advice: only choose Bulgaria if you’re actually generating revenue. The mandatory social security contributions don’t care if you’re profitable. If you’re still building your client base or experimenting with a side project, this isn’t the place to start. You’ll bleed cash.

Hidden Traps to Watch

First, accounting. You’re required to maintain records. Most freelancers hire a local accountant. Expect to pay BGN 50-150 per month (~$29-$86 USD). It’s worth it. Bulgarian tax law is Byzantine, and the NRA doesn’t tolerate sloppiness.

Second, residency. If you’re a non-resident, things get messier. You’ll need to prove tax residency somewhere, or Bulgaria will assume you’re resident here. That can trigger additional obligations. Flag theory applies. Structure your residency carefully.

Third, banking. Bulgarian banks are cautious with freelancers, especially foreigners. Bring proof of contracts, proof of income, proof of address. Open a business account. Don’t mix personal and business transactions. The NRA can request bank statements during audits.

Who Should Use This Status?

Consultants. Developers. Designers. Writers. Coaches. Anyone providing cross-border services to EU or international clients. If you’re a digital worker earning $30,000-$80,000 USD per year, this structure works. Below that, the social security floor hurts. Above that, you might want to explore a limited company (OOD) for better tax optimization.

It’s not for e-commerce sellers or anyone dealing with physical goods. VAT complications arise fast. Stick to services.

The Practical Path Forward

If you decide to register, here’s the process:

  1. Get a BULSTAT number from the Registry Agency.
  2. Register with the National Revenue Agency (NRA) as a self-employed person.
  3. Register with the National Insurance Institute (NOI) for social security.
  4. Choose your monthly insurance base (start with the minimum).
  5. Open a Bulgarian bank account.
  6. Hire a local accountant.
  7. Invoice, collect, file quarterly tax returns.

Total setup time: 1-2 weeks. Total setup cost: under BGN 200 (~$114 USD) if you do most of it yourself.

Bulgaria isn’t a tax haven. It’s not even close. But it’s a pragmatic choice for EU-based freelancers who want low taxes, simple compliance, and a legal base that doesn’t require corporate overhead. Just remember: the social security contributions are mandatory and front-loaded. Plan your cash flow accordingly.

If you’re already profitable and looking for an EU foothold, Bulgaria works. If you’re still testing ideas, consider staying offshore or using a more flexible jurisdiction until you have consistent revenue. The state won’t wait for you to figure things out.

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