Keep Bulgaria's 10% corporate tax while paying staff in Germany, France, Italy, and beyond. Understand A1 certificates, social security coordination, EOR options, and when a local payroll is required.

Can I Hire Employees Across the EU with a Bulgarian Company?

If you run a SaaS company, digital agency, or e-commerce brand through a Bulgarian entity, you're already benefiting from the EU's lowest corporate tax rate at 10%.

But what happens when you want to hire developers in Germany, sales reps in France, or designers in Spain?

The short answer: Yes, you can hire across the EU and maintain your 10% tax advantage – if you follow the right social security and permanent establishment rules.

This guide shows you exactly how to do it legally, including three practical hiring models, real examples, and compliance watchouts.

What Are the Risks of Hiring EU Employees from Bulgaria?

When hiring remote employees across EU borders, you face two main compliance risks:

Risk 1: Social Security Affiliation Conflicts
EU rules (Regulation 883/2004) state that an employee can only be covered by one country's social security system at a time. Without proper documentation, both Bulgaria and the employee's residence country could demand contributions – meaning you pay double.
Risk 2: Creating a Permanent Establishment (PE)
If your remote employee's home office starts functioning as a fixed place of business for your company, you could trigger corporate tax obligations in their country – losing your Bulgarian 10% advantage.
The good news: EU coordination rules and the 2025 OECD guidance on remote work PE give you clear compliance paths.

What Are the Key EU Rules for Cross-Border Employment?

A1 Certificate: Your Social Security Proof
The A1 certificate is the official EU document that proves which country's social security system covers your employee. It prevents other countries from demanding duplicate contributions.
In Bulgaria, you request the A1 from the National Revenue Agency (NRA) following specific timelines and documentation requirements.
The 49.9% Telework Rule (Framework Agreement)
Since July 1, 2023, the EU's multilateral Framework Agreement on telework allows employees to work up to 49.9% of their time from their residence country while staying covered by the employer's social security system.
Requirements:
  • Both countries must be signatories to the agreement
  • You must apply for an A1 certificate under Article 16
  • The employee works the remaining 50.1%+ "for" the Bulgarian employer
2025 OECD Guidance on Home Office PE
The updated OECD commentary (2025) clarifies when a remote worker's home office creates a permanent establishment:
Key factors:
  • Is the location at the enterprise's disposal?
  • Is it a business necessity?
  • Does the company control the premises?
Bottom line: As long as you don't treat foreign home offices as company premises (no public listings, no required customer meetings there), you significantly reduce PE risk.

What Are the 3 Ways to Hire EU Employees from Bulgaria?

Here are three legally compliant models for building your EU team while keeping Bulgarian 10% corporate tax:

1

Direct Bulgarian Employment with A1 Certificate

Best for: Product, design, support roles that can travel to Bulgaria periodically
How It Works:
  • Employee signs a Bulgarian employment contract
  • Employee is insured under Bulgarian social security
  • If working up to 49.9% from residence country, you apply for A1 under Article 16
  • Employee travels to Sofia for onboarding and periodic collaboration
Watchouts:
  • Both countries must be Framework Agreement signatories
  • A1 is not automatic – you must file and meet conditions
  • Board meetings and key decisions must happen in Bulgaria
2

Employer of Record (EOR) in Employee's Country

Best for: Sales roles, heavy local market activity, or countries without Framework Agreement
How It Works:
  • Your Bulgarian company remains the operating HQ
  • EOR becomes legal employer in worker's country
  • EOR handles local payroll, taxes, and compliance
  • You direct the work; EOR handles administration
Benefits:
  • Reduces PE risk from single remote hires
  • Faster than opening foreign subsidiary
  • Local benefits alignment for employee
Watchouts:
  • EOR fees add cost (typically 15-25% of salary)
  • Ensure clear IP assignment and confidentiality clauses
3

Genuine Contractor Agreement

Best for: Short projects or senior independents with their own business
How It Works:
  • Contractor invoices your Bulgarian company
  • Include strong IP assignment and confidentiality
  • Avoid employment-like control and fixed schedules
Critical Warning: Misclassification penalties are severe. Contractors who work exclusively for you, on your schedule, using your tools, are employees in substance. Consider EOR or direct employment for ongoing roles.

Real Examples: How to Structure EU Hiring from Bulgaria

Example 1: Hiring a Developer in Germany
Scenario: Your Bulgarian SaaS company wants to hire a senior developer living in Berlin.
Option A: Direct Bulgarian Employment + A1
  • Developer signs Bulgarian contract
  • Works up to 49.9% from Berlin, 50.1%+ "for" Bulgarian company
  • Travels to Sofia quarterly for team sprints
  • You file for A1 under Article 16
Result: Bulgarian social security, 10% corporate tax maintained
Option B: EOR Germany
  • Developer works nearly full-time from Germany
  • EOR provides German employment contract
  • Your Bulgarian company invoiced by EOR
Result: Clean German payroll, 10% Bulgarian corporate tax preserved, minimal PE risk
Example 2: SDR in France + Product Team in Bulgaria
Scenario: You're expanding into the French market and building your core product in Sofia.
Structure:
  • SDR: French EOR (local benefits, reduces PE risk)
  • Product team: Direct Bulgarian employment
  • Quarterly in-person cycles in Sofia
  • Board meetings and key contracts signed in Bulgaria
Result: Sales is truly local, engineering centralized, corporate tax stays 10%

How Do I Protect My 10% Bulgarian Tax Rate While Scaling?

Follow these five rules to maintain Bulgarian corporate residence and avoid triggering foreign tax obligations:

1. Keep Management in Bulgaria
Hold board meetings in Sofia, sign contracts in Bulgaria, minute key decisions. This proves corporate residence.
2. Don't Turn Home Offices into Branch Offices
Avoid public listings showing foreign addresses as company premises. Don't require employees to meet customers at home.
3. Match Hiring Model to Role
Product/design → BG employment + A1 | Sales/local market → EOR | Projects → Contractors
4. File A1 Certificates on Time
The Framework Agreement isn't automatic. Apply through Bulgarian NRA and meet all conditions.
5. Document Everything
Keep records of: travel to Bulgaria, board meeting minutes, contract signing locations, A1 applications.

What Are Bulgaria's Actual Employment Costs?

Understanding Bulgarian employment costs helps you budget accurately:

Corporate Tax: Flat 10%
No provincial or municipal corporate income taxes. What you see is what you pay.
Social Security: Capped Contributions
Bulgaria caps social security contributions at a maximum monthly base of BGN 4,130 (approximately €2,110) for 2025. This means senior hires don't trigger disproportionate social costs – a major advantage vs. countries with uncapped contributions.
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Frequently Asked Questions

Yes. The A1 is the official document proving which country's social security applies. Without it, the employee's residence country can claim contributions, potentially doubling your costs.

If they exceed 49.9% of work time in their residence country, social security typically switches to that country under baseline EU rules (Regulation 883/2004). In this case, use an EOR or establish a local entity.

It's fact-dependent. The 2025 OECD guidance narrows when a home office equals a fixed place PE, but you must avoid giving that location the attributes of a company-controlled office (no public listings, no required customer meetings there).

Yes, absolutely. You remain fully inside the EU financial system. Your payment processor setup does not conflict with Bulgarian corporate residence.

Most EU member states are signatories. Check the current list on the European Commission's social security coordination website or consult with a Bulgarian tax advisor before structuring employment.

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