Quick Answer
There is no separate legal status called “freelancer in Bulgaria.” Independent professionals either work under a civil contract (for occasional projects) or register as a self-employed person (SOL) for regular activity. The correct structure depends on frequency of work, residence status, and social security obligations. Choosing the wrong model can create tax and compliance risks.
Introduction
Starting as a freelancer in Bulgaria can be an attractive option for foreigners and digital professionals. However, Bulgaria does not recognize “freelancer” as a legal form. Instead, independent professionals must operate either under a civil contract or as a registered self-employed person (самоосигуряващо се лице – SOL).
Understanding the difference is essential to remain compliant with Bulgarian tax, social security, and VAT rules.
Understanding the Legal Structures for Freelancers and Digital Nomads in Bulgaria
“Freelancer” and “digital nomad” are commonly used terms, but they are not legal categories under Bulgarian law. In practice, freelancers typically operate under one of the following structures:
- Civil Contract (Граждански договор) – A contract for services between an individual and a Bulgarian company (or another individual). Suitable for occasional freelance work.
- Self-Employed Individual (Самоосигуряващо се лице – SOL) – A person registered with the National Revenue Agency (NRA) as a self-insured individual. Required for those providing services regularly.
- BULSTAT Registration – A unified register of legal entities and individuals conducting business activities in Bulgaria. Certain freelance activities require registration under Article 3, points 9–11 of the BULSTAT Law.
⚠️ What about companies?
Many foreigners ask whether they should register a sole proprietorship (ET). However, ETs come with unlimited liability, meaning your personal assets are at risk for business debts. For this reason, a single-owner limited liability company (EOOD) is often preferred when freelance activity becomes structured or substantial.
You can read more about this here: 👉 Company Registration in Bulgaria
1. Working as a Freelancer Under a Civil Contract
If you work on occasional projects for a Bulgarian client, you can operate under a civil contract (граждански договор). This is a relatively simple way to provide services without registering as self-employed.
Key Features
- No business registration required.
- Contract-based work with a Bulgarian company or individual.
- Taxes and social security are deducted by the payer.
- Suitable for occasional or short-term freelance work.
Practical Requirements for Foreigners
- Bulgarian Personal Identification Number (PIN) issued by the NRA.
- The client must have a valid Unified Identification Code (UIC).
EU/EEA Citizens – Additional Documents
If you are insured in another EU country, you may need:
- An A1 Certificate
- A tax residency certificate from your home country
A1 Certificate and Cross-Border Social Security
If you are temporarily working in Bulgaria while insured in another EU country, an A1 Certificate confirms which country’s social security system applies.
Without a valid A1 certificate, Bulgarian authorities may require local social security contributions.
Read our detailed guide here:
👉 A1 Certificate Explained: Social Security Rules for Cross-Border Work in Europe
This is particularly relevant for consultants, remote workers, and EU freelancers relocating temporarily.
Taxes & Social Security under a Civil Contract
- 10% personal income tax (withheld by the client)
- Social security:
- If you have other insured income, only health insurance may apply.
- If this is your only income, full pension and health insurance contributions are deducted by the client.
BULSTAT Registration under Civil Contracts
Certain “free professions” and craft activities require registration under the BULSTAT Law. Foreigners without a Bulgarian PIN conducting business activity in Bulgaria may also fall under mandatory registration rules.
Professional advice is recommended to assess your situation.
2. Becoming a Registered Self-Employed Freelancer in Bulgaria (SOL)
If you work regularly as a freelancer in Bulgaria, you must register as a self-employed person (SOL) with the National Revenue Agency.
Key Features
- Registration with the NRA as a self-insured individual
- 10% personal income tax (with 25% normative expense deduction option)
- Responsible for own social security contributions
- Annual tax return filing required
VAT Registration
The VAT registration threshold is EUR 51,130 per calendar year.
If your taxable turnover exceeds this amount within a calendar year, VAT registration becomes mandatory.
For full details, read: 👉 VAT in Bulgaria
Requirements for Foreigners Registering as SOL
- Permanent address in Bulgaria
- Bulgarian PIN
- Valid residence status (if non-EU)
- Possible BULSTAT registration depending on activity
Digital Nomad Visa and Freelancing in Bulgaria (Non-EU Citizens)
Bulgaria has introduced a Digital Nomad Visa regime for certain non-EU remote workers. However:
- The visa regulates residence status, not tax status.
- It does not automatically create freelancer or self-employed status.
- Tax obligations depend on tax residency and income source.
If you stay in Bulgaria for more than 183 days per year, you may become a Bulgarian tax resident and owe 10% income tax on worldwide income.
If you provide services while physically working from Bulgaria, you may still need SOL registration and potentially VAT registration.
Residence and tax status are separate legal concepts and must be evaluated carefully.
Comparison: Civil Contract vs. Self-Employed (SOL)
| Criteria | Civil Contract | Self-Employed (SOL) |
|---|---|---|
| Registration | No business registration required | NRA registration required |
| Frequency | Occasional work | Regular, ongoing activity |
| Tax Withholding | Client withholds 10% tax | Freelancer declares income |
| Social Security | Deducted by client | Paid directly by freelancer |
| VAT | Rarely applicable | Mandatory if turnover exceeds EUR 51,130 per calendar year |
| Administrative burden | Low | Moderate |
When Does a Company Make More Sense?
If your freelance activity grows, involves multiple clients, or carries commercial risk, registering a limited company (EOOD) may provide better structure and liability protection.
See: 👉 Working in Bulgaria: Freelancer vs. Company Registration
For a broader perspective on how these structural decisions fit into the Bulgarian business environment, see: 👉 Doing Business in Bulgaria: A Practical Perspective.
Conclusion
Working as a freelancer in Bulgaria requires choosing the correct legal structure. Civil contracts are suitable for occasional work. Regular activity requires registration as a self-employed person (SOL).
Residence status, tax residency, and social security coordination — especially for EU citizens — must be evaluated carefully.
Selecting the wrong structure can result in retroactive contributions, penalties, or forced registration. Professional guidance ensures compliance from the beginning.
Need Help Structuring Your Freelance Activity in Bulgaria?
Choosing the correct setup as a freelancer in Bulgaria is not just an administrative step — it determines your tax position, social security exposure, and long-term compliance.
At Aidos, we help foreign professionals and digital workers:
- Determine whether civil contract or SOL registration applies
- Assess tax residency risks
- Coordinate A1 certificates and cross-border situations
- Register self-employed status correctly
- Plan VAT obligations from the start
If you are unsure which structure fits your situation, contact us for a structured assessment before you begin working.
Need more information and resources to support your freelance journey in Bulgaria? Check out our Bulgaria Business & Tax Knowledge Hub page for helpful guides, tools, and information.
FAQs: Freelancer in Bulgaria
Can I freelance in Bulgaria without registering as self-employed?
Yes — but only if the work is occasional and performed under a civil contract with a Bulgarian client. If your activity becomes regular and continuous, registration as a self-employed person (SOL) is mandatory.
Do I need a company to work as a freelancer in Bulgaria?
No. You can operate either under a civil contract or as a registered self-employed individual. A company (EOOD) becomes relevant when activity grows, involves higher risk, or requires limited liability protection.
What is the VAT threshold for freelancers in Bulgaria?
The VAT registration threshold is EUR 51,130 per calendar year. If your taxable turnover exceeds this amount within a calendar year, VAT registration becomes mandatory.
Do digital nomads automatically become tax residents in Bulgaria?
Not automatically. Tax residency depends primarily on physical presence (183-day rule) and center of vital interests. Residence permit status and tax residency are separate legal concepts.
What is the A1 Certificate and when do I need it?
An A1 Certificate confirms which EU country’s social security system applies to you. If you are insured in another EU country while working temporarily in Bulgaria, you may need an A1 certificate to avoid double social security contributions.
Is BULSTAT registration required for freelancers?
In certain cases, yes. Individuals practicing “free professions” or conducting independent economic activity may be required to register under the BULSTAT Law. The obligation depends on the nature of the activity and the individual’s status.
Can I work for foreign clients while registered as self-employed in Bulgaria?
Yes. If you are registered as SOL in Bulgaria, you may provide services to foreign clients. However, you remain subject to Bulgarian tax and social security rules, and cross-border VAT rules may apply.
Disclaimer
This article is for informational purposes only and does not constitute tax, legal, or accounting advice. The appropriate freelance structure depends on your residence status, income source, and personal circumstances. Always seek professional advice before registering or signing contracts.
Last reviewed and updated: February 2026
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