The Lowest Effective Income Tax in the EU
Bulgaria offers something no other EU country does: a 7.5% effective income tax rate for freelancers. Not 10%. Not 15%. Seven and a half percent — on every euro you earn, with no receipts required and no complex deduction calculations.
This is not a loophole or a special regime available only to certain industries. It is the standard tax treatment for every registered freelancer (svobodna profesiya) in Bulgaria, applied automatically by the tax code. Combined with Bulgaria's 10% flat income tax, Schengen membership since January 1, 2025, and euro adoption since January 1, 2026, this makes Bulgaria the most tax-efficient freelancer destination in the European Union.
This guide explains exactly how the 7.5% rate works, what you pay on top in social security, who qualifies, how to register, and when it makes sense to switch to an EOOD (limited company) instead.
How the 7.5% Rate Works
The math is straightforward. Bulgarian tax law grants freelancers an automatic 25% normatively recognized expense deduction. This means that regardless of your actual business expenses, the government assumes you spend 25% of your gross income on business costs and deducts that amount before calculating tax.
Here is the formula:
- Start with gross income (total invoiced revenue)
- Subtract 25% automatic expense deduction (no receipts needed)
- Subtract social security contributions you paid during the year
- Apply 10% flat tax on the remaining taxable base
The income tax component alone is: 75% x 10% = 7.5% of gross income. Social security is additional, but it is capped — meaning high earners pay a fixed maximum regardless of income.
No receipts required: The 25% expense deduction is normative — it is built into the tax code and applied automatically. You do not need to collect, organize, or present receipts. Even if your actual business expenses are 0%, you still get the 25% deduction. This is one of the simplest tax systems in Europe.
Higher deduction for certain professions
Some professions qualify for a 40% automatic deduction instead of 25%. These include lawyers, authors, artists, writers, composers, and certain scientific professionals. For these professions, the effective income tax rate drops to just 6% (60% x 10%).
Calculation Examples at Different Income Levels
Let's run the numbers at three common monthly income levels. Social security contributions are calculated on a self-chosen insurance base, capped at EUR 2,111.64 per month in 2026. We assume the freelancer insures on the minimum base of EUR 550.66 per month (the most common choice), paying approximately EUR 175 per month in total contributions.
| Monthly Gross Income | EUR 2,000 | EUR 5,000 | EUR 10,000 |
|---|---|---|---|
| Annual gross income | EUR 24,000 | EUR 60,000 | EUR 120,000 |
| 25% expense deduction | - EUR 6,000 | - EUR 15,000 | - EUR 30,000 |
| Social security (annual) | - EUR 2,100 | - EUR 2,100 | - EUR 2,100 |
| Taxable base | EUR 15,900 | EUR 42,900 | EUR 87,900 |
| 10% income tax | EUR 1,590 | EUR 4,290 | EUR 8,790 |
| Social security paid | EUR 2,100 | EUR 2,100 | EUR 2,100 |
| Total tax + SS | EUR 3,690 (15.4%) | EUR 6,390 (10.7%) | EUR 10,890 (9.1%) |
| Net income | EUR 20,310 | EUR 53,610 | EUR 109,110 |
The higher you earn, the lower your effective rate. Because social security is capped, its relative impact shrinks as income grows. At EUR 10,000/month, the total effective rate (tax + social security) is just 9.1%. At EUR 20,000/month, it drops below 8.5%. This is why Bulgaria is particularly attractive for high-earning freelancers — software developers, consultants, designers, and other digital professionals.
Social Security on Top: Capped and Predictable
Freelancers in Bulgaria must pay social security contributions as self-insured persons. Here are the 2026 parameters:
- Minimum insurance base: EUR 550.66 per month
- Maximum insurance base: EUR 2,111.64 per month
- Contribution rates (approximate):
- Pension (Fund for Pensions): 19.8%
- General sickness and maternity: 3.5%
- Health insurance: 8%
- Supplementary pension (Universal): 5% (for those born after 1959)
- Total: approximately 31.8% (if opting into all funds)
- Typical monthly cost on minimum base: approximately EUR 175
- Maximum monthly cost on ceiling: approximately EUR 670
Most freelancers choose to insure on or near the minimum base, paying roughly EUR 175 per month (EUR 2,100 per year). This is perfectly legal and the most common approach. The trade-off is lower pension and sickness benefits — but most international freelancers supplement with private insurance anyway.
Important: Social security contributions are deductible from your taxable income. This means they reduce both your taxable base and your final tax bill. The EUR 2,100 annual payment at the minimum base saves you EUR 210 in income tax (10% of EUR 2,100), bringing the net cost of social security closer to EUR 1,890.
Who Qualifies as a Freelancer (Svobodna Profesiya)?
In Bulgarian law, a svobodna profesiya (free/liberal profession) covers a wide range of self-employed activities. You qualify if you:
- Perform work based on your own skills and expertise
- Are not registered as a sole trader (ET) or commercial company
- Work for your own account (not under an employment contract)
Common freelancer professions
- IT: Software developers, web designers, UX/UI designers, system administrators
- Creative: Graphic designers, photographers, videographers, writers, translators
- Consulting: Business consultants, marketing consultants, management advisors
- Professional services: Accountants, tax advisors, architects, engineers
- Health and wellness: Psychologists, therapists, nutritionists, personal trainers
- Education: Tutors, language teachers, online course creators
- Legal: Lawyers and notaries (qualify for 40% deduction)
If your activity involves buying and selling goods (trade), you cannot register as a freelancer — you need a sole trader (ET) or company registration instead. Freelancer status is for service providers who sell their expertise, time, or creative output.
Registration Process: Same Day at the NRA
Registering as a freelancer in Bulgaria is fast and simple. The process involves two steps:
Step 1: BULSTAT Registration
Register with the BULSTAT National Register at the Registry Agency to obtain your unique identification code (EIK). This is your business identification number, used on invoices and tax filings. You can register in person at a Registry Agency office or online with a qualified electronic signature.
Step 2: NRA Declaration (OKD-5)
File the OKD-5 declaration with the National Revenue Agency (NRA) within 7 days of starting your activity. This declaration specifies:
- The start date of your freelance activity
- The type of social security contributions you choose to pay
- Your self-chosen insurance base (between the minimum and maximum)
You can submit this form at any NRA office, through the NRA's electronic portal, or via the Secure Electronic Service System. Both steps can realistically be completed on the same day.
For EU citizens: Before registering as a freelancer, you need an address registration and a personal number (LNCH). EU citizens have 4 grounds for residence in Bulgaria: company owner, employee, self-sufficient person (EUR 5,100 in a Bulgarian bank account), or family member. Your LNCH is issued by the Migration Directorate — not by the police or any other agency. For the full process, see our EU residence permit guide.
Freelancer vs EOOD: Side-by-Side Comparison
The question every self-employed person in Bulgaria eventually asks: should I stay as a freelancer or register an EOOD (single-member limited liability company)? Here is a direct comparison:
| Feature | Freelancer (Svobodna Profesiya) | EOOD (Limited Company) |
|---|---|---|
| Effective income tax | 7.5% (25% deduction + 10% flat) | 15% combined (10% CIT + 5% dividend) |
| Personal liability | Unlimited — personal assets at risk | Limited to company capital |
| Social security | ~EUR 175/month (min base) | ~EUR 175/month (on min salary) + company share |
| Accounting | Simple (income/expense ledger) | Double-entry bookkeeping required |
| Setup cost | Minimal (under EUR 50) | EUR 300-500 (registration + notary) |
| Monthly accounting cost | EUR 50-100 | EUR 100-250 |
| Retained earnings | Not possible — all income is personal | Can retain profits at 10% CIT (no dividend tax until distributed) |
| Hiring employees | Not possible | Yes |
| Business credibility | Lower (natural person) | Higher (legal entity) |
| Exit/sale | Cannot sell your practice | Can sell the company as an asset |
For a detailed comparison with real calculations, see our dedicated article: Company vs Freelancer in Bulgaria: Which Structure Saves You More?
VAT Threshold: EUR 51,130
Bulgaria's VAT registration threshold is EUR 51,130 in taxable turnover per calendar year (2026). Here is what you need to know:
- Below the threshold: VAT registration is optional. You do not charge VAT on your invoices. This simplifies everything.
- Above the threshold: You must register for VAT within 7 days of the date your turnover exceeds EUR 51,130. From that point, you charge 20% VAT on domestic supplies.
- B2B services to EU clients: Services supplied to VAT-registered businesses in other EU countries are reverse-charged — you invoice at 0% VAT and the client accounts for VAT in their country. These sales do not count toward the EUR 51,130 threshold.
- EU SME regime: Since 2025, an EU-wide small business VAT scheme applies for businesses with total EU-wide turnover up to EUR 100,000, subject to specific conditions.
For digital freelancers serving EU clients: If all your clients are VAT-registered businesses in other EU countries and you only provide B2B services (consulting, software development, design), you likely do not need to register for VAT at all. Your B2C (business-to-consumer) and domestic turnover must exceed EUR 51,130 before mandatory registration kicks in. This keeps your compliance burden minimal.
When to Switch to an EOOD
The freelancer structure is not always the best choice. Consider switching to an EOOD when:
- Liability matters: If your work carries professional risk (advice that clients rely on for major decisions, contracts with large enterprises), the unlimited personal liability of a freelancer becomes a serious concern. An EOOD limits your liability to the company's capital.
- Income exceeds EUR 60,000-80,000 per year: At higher income levels, the ability to retain earnings inside an EOOD at just 10% CIT (without paying the 5% dividend tax) becomes valuable. If you reinvest profits or build a reserve, you only pay 10% instead of 7.5% income tax on all income.
- You want to hire employees: Freelancers cannot employ staff. An EOOD can.
- Client requirements: Some international clients, especially larger companies, require contracts with legal entities rather than natural persons.
- Building a sellable business: A freelancer practice dies with the person. An EOOD is a transferable asset that can be sold.
- Multiple income streams: If you have both active income (services) and passive income (investments, licensing), an EOOD provides more structural flexibility.
The sweet spot: For most freelancers earning under EUR 50,000 per year, the freelancer structure wins on simplicity and effective tax rate (7.5% vs 15%). Above EUR 80,000, the EOOD's liability protection and retained earnings advantage start to outweigh the higher combined rate. Between EUR 50,000-80,000, it depends on your specific needs — contact us for a personalized comparison.
Common Mistakes to Avoid
| Mistake | Consequence | How to Avoid |
|---|---|---|
| Not filing advance tax payments | Penalties and interest from the NRA. Freelancers must make quarterly advance tax payments if income exceeds certain thresholds. | File and pay quarterly advance declarations on time. Your accountant will calculate the amounts. |
| Insuring on the wrong base | Overpaying social security by choosing a higher base than necessary, or underpaying and facing penalties at annual reconciliation. | Most freelancers should insure on the minimum base (EUR 550.66/month). Adjust only if you want higher pension/sickness benefits. |
| Missing the VAT registration deadline | Fines of EUR 250-5,000 plus retroactive VAT liability on supplies made after the threshold was exceeded. | Track your cumulative calendar-year turnover monthly. Register within 7 days of exceeding EUR 51,130. |
| Claiming the 40% deduction when 25% applies | Incorrect tax return leading to reassessment, penalties, and interest. | The 40% deduction only applies to specific professions (lawyers, authors, artists). Most freelancers get 25%. |
| Not issuing proper invoices | Unrecognized income, potential NRA audit issues. | Issue an invoice for every payment received. Include your BULSTAT number, client details, description, and amount. |
| Ignoring the annual tax reconciliation | Underpayment of social security discovered at year-end, leading to a lump sum due plus interest. | File your annual tax return (by April 30) which includes the social security reconciliation. Pay any balance due promptly. |
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