Remote Work Taxes in Bulgaria: A Guide for Foreigners and Expats

Bulgaria’s Flat Tax System: What the 10% Rate Actually Means

By 2026, Bulgaria‘s tax regime has become one of the most discussed in Europe among remote workers — and for good reason. The headline figure is a flat 10% personal income tax rate, the lowest in the EU. But that number alone does not tell you what you will actually pay, what you must declare, or whether Bulgaria even has the right to tax your income in the first place. If you are planning to work remotely from Bulgaria for more than a few weeks, you need to understand the full picture before you make any decisions about where to file.

Bulgaria applies a flat 10% personal income tax on taxable income for all tax residents, whether Bulgarian citizens or foreigners. This applies to employment income, freelance income, rental income, dividends, and most other income categories. The rate has not changed since 2008 and remains unchanged in 2026.

There is a key practical detail most guides skip: Bulgaria does not have a tax-free personal allowance for most income categories. If you earn income as a Bulgarian tax resident, 10% applies from the first lev. However, there are deductions available — for example, self-employed individuals registered as sole traders (ET) can deduct a notional 25% of expenses from their gross income before applying the 10% rate, bringing the effective rate closer to 7.5% on gross revenue. Freelancers registered under a different category (freelance liberal professions) can deduct a notional 25% or 40% depending on the activity type.

Dividends from Bulgarian companies are taxed separately at a flat 5% withholding tax, which makes the EOOD (equivalent of a limited company) structure attractive to some expats who set up a local entity. Capital gains on shares and financial instruments held longer than certain periods may be exempt, but this is a niche area worth discussing with a local accountant.

The National Revenue Agency (NRA, known in Bulgarian as НАП — Natsionalna Agentsiya za Prihodite) administers all personal income tax. Annual tax returns are due by 30 April of the following year. If you owe tax, payment is due by the same date.

Tax Residency: When Bulgaria Has the Right to Tax You

Physical presence in Bulgaria does not automatically make you a tax resident — but it can. Understanding the rules here prevents expensive surprises.

Under Bulgarian tax law, you become a Bulgarian tax resident if any of the following apply:

• You have a permanent address (permanent registration) in Bulgaria
• You spend more than 183 days in Bulgaria within any 12-month period
• You are sent abroad by a Bulgarian employer
• Your centre of vital interests is in Bulgaria — meaning your family, property, and economic activity are primarily based here

The 183-day rule is the one most digital nomads hit unexpectedly. If you arrive in March and stay until October, count your days carefully. Bulgaria does not currently stamp passports at internal EU borders, but it does track non-EU arrivals. EU citizens entering from other Schengen states are not automatically logged, which creates ambiguity — but ambiguity is not a tax shield. If you are genuinely resident in Bulgaria, you are expected to declare it.

Once you are a Bulgarian tax resident, you are taxed on your worldwide income — not just income earned from Bulgarian sources. This is the critical point. Income from a foreign employer, foreign freelance clients, or foreign investments all falls into scope.

Non-residents, by contrast, are only taxed on Bulgarian-source income. If you spend 60 days working remotely from Sofia while remaining tax resident in Germany or the United States, Bulgaria generally cannot tax your foreign-source earnings.

The Digital Nomad Visa and Other Residence Options — Tax Implications of Each

Bulgaria introduced its Digital Nomad Visa (officially called the Type D “Digital Nomad” long-stay visa) in 2023, and the rules have been refined through 2025–2026. Understanding which visa or residence permit you hold matters directly for your tax position.

Digital Nomad Visa (Type D)

This visa allows non-EU nationals to stay in Bulgaria for up to one year (renewable once for another year). To qualify in 2026, applicants must prove:

• Remote employment with a non-Bulgarian employer, or freelance contracts with non-Bulgarian clients
• Monthly income of at least BGN 3,512 (approximately €1,795 / $1,950) — this threshold was updated in January 2026 to reflect the average Bulgarian salary multiplier requirement
• Valid health insurance covering Bulgaria
• Proof of accommodation in Bulgaria

Critically, holding a Digital Nomad Visa does not automatically make you a Bulgarian tax resident. If you stay under 183 days, your centre of vital interests remains abroad, and you maintain tax residency elsewhere, Bulgaria will not claim your worldwide income. However, if you stay a full year and renew, the 183-day threshold will almost certainly be crossed, and you should take formal tax advice before that happens.

EU Freedom of Movement (EU Citizens)

EU citizens do not need a visa. After three months, they should register their residence with the local municipality. After five years of continuous legal residence, they qualify for permanent residence. EU citizens living in Bulgaria for more than 183 days per year generally become Bulgarian tax residents, with all the obligations that entails.

Long-Term Residence Permit (Non-EU)

Non-EU nationals who establish a Bulgarian company, invest, or work for a Bulgarian employer can apply for a long-term or permanent residence permit. This almost certainly triggers Bulgarian tax residency, and worldwide income obligations apply from day one of resident status.

Double Taxation Treaties: How to Avoid Paying Twice

Bulgaria has signed double taxation agreements (DTAs) with over 70 countries, including the United States, United Kingdom, Germany, France, Canada, Australia, and most EU member states. These treaties determine which country has the primary right to tax your income and ensure you are not fully taxed in both places simultaneously.

The general framework works like this:

1. Employment income is typically taxed where the work is physically performed. If you are in Bulgaria doing the work, Bulgaria has the stronger claim — even if your employer is abroad.
2. Freelance / business income follows similar logic, though treaty wording varies. Some treaties only allow the country of residence to tax business profits unless the person has a “permanent establishment” in the other country.
3. Relief mechanisms — most treaties use either the exemption method (the other country exempts the income) or the credit method (you pay tax in one country and receive a credit against the other). Bulgaria primarily uses the credit method.

For Americans specifically: the US taxes its citizens on worldwide income regardless of where they live. A US citizen who becomes a Bulgarian tax resident will file in both countries. The US Foreign Tax Credit allows you to offset Bulgarian taxes paid against US tax owed, which usually eliminates double taxation in practice — but you still must file a US return every year, and the Foreign Earned Income Exclusion (FEIE) applies only to earned income, not passive income.

Do not rely on the existence of a treaty alone. Treaties are complex documents, and the specific article that applies to your income type matters. A tax advisor familiar with both Bulgarian and your home country’s tax law is worth the fee.

Registering as a Freelancer or Sole Trader in Bulgaria

If you plan to work from Bulgaria and invoice clients directly — rather than remaining an employee of a foreign company — you will need a legal structure to do so compliantly. The two main options for individuals are:

ET — Sole Trader (Едноличен Търговец)

The ET is a simple sole trader registration through the Bulgarian Commercial Register. It suits people with straightforward freelance income. You register your BULSTAT number (Bulgaria’s business identification system) and file annual accounts. The process costs approximately BGN 35 (€18 / $19) in registration fees and takes 3–5 business days online. The BULSTAT registration itself is free for individuals who simply need one for tax purposes without forming a business entity.

EOOD — Single-Member Limited Liability Company

The EOOD is the Bulgarian equivalent of a UK Ltd or US LLC. It is a separate legal entity, which means the company pays 10% corporate income tax on profits, and then you pay a further 5% dividend tax when withdrawing profits as dividends. The combined effective rate is 14.5%, still competitive in European terms. Forming an EOOD in 2026 costs approximately BGN 200–400 (€100–205 / $110–220) in notary and registration fees, plus a minimum share capital of BGN 2 (yes, two lev). Accountancy fees typically run BGN 150–300 per month (€75–155).

For most digital nomads staying under two years, the ET or simply operating under a foreign entity while monitoring days is the simpler path. The EOOD makes more sense for those committing to Bulgaria long-term or earning above BGN 70,000–80,000 per year, where the corporate structure may offer planning advantages.

Social Security and Health Insurance: The Numbers Remote Workers Miss

This is the part of Bulgarian taxation that catches people off guard. Even if your income tax is a comfortable 10%, mandatory social and health contributions add significantly to your total burden — and in 2026, these are not optional if you are a Bulgarian tax resident conducting economic activity.

For self-employed individuals in Bulgaria, contributions in 2026 are calculated on a declared monthly insurance income, with a minimum of BGN 933 and a maximum of BGN 3,750 per month.

The contribution rates for self-employed individuals break down as follows:

• Pension fund (Държавното обществено осигуряване / DOO): 19.8% of insurable income (paid entirely by the self-employed person)
• Additional mandatory pension (TPZOK — for those born after 1 January 1960): 5% of insurable income
• Health insurance (НЗОК): 8% of insurable income

On the minimum insurable income of BGN 933 per month, total monthly social and health contributions amount to approximately BGN 306 (€156 / $170). On the maximum of BGN 3,750, contributions reach approximately BGN 1,230 (€629 / $683) per month.

If you are an employee of a foreign company while residing in Bulgaria, different rules may apply under EU Social Security coordination regulations (EC 883/2004 for EU nationals) — you may be able to remain insured in your home country and present an A1 certificate to demonstrate this. Non-EU nationals do not benefit from EC 883/2004 and should verify their position carefully.

2026 Budget Reality: The Cost of Working Legally from Bulgaria

Here is what living and working compliantly from Bulgaria actually costs in 2026, in concrete terms:

Monthly Apartment Rental

• Budget (studio or 1-bed, outer districts): BGN 700–1,000 / €358–512 / $388–555 — Sofia and Plovdiv; cheaper in Varna outside summer
• Mid-range (1-bed or 2-bed, central areas): BGN 1,100–1,800 / €562–921 / $610–999
• Comfortable (2-bed, modern building, good location): BGN 2,000–3,200 / €1,023–1,637 / $1,109–1,775

Health Insurance

• If using state system (self-employed contributions): BGN 74.64/month minimum (8% of BGN 933)
• Private international health insurance (for Digital Nomad Visa holders not yet registered): BGN 150–400/month depending on age, coverage, and insurer

Accountancy

• Basic bookkeeping for ET or individual: BGN 100–200/month
• EOOD full accountancy service: BGN 180–350/month
• Annual tax return assistance (one-off): BGN 200–500

Total Monthly Overhead for a Solo Remote Worker (Mid-Range)

Rent BGN 1,400 + social/health contributions BGN 306 + accountancy BGN 150 + utilities BGN 150 + groceries BGN 400 = approximately BGN 2,400 / €1,228 / $1,331 per month before any discretionary spending. That is still materially below equivalent costs in Western Europe for a comparable lifestyle.

Common Mistakes Foreigners Make with Bulgarian Taxes

After reviewing dozens of expat forums and speaking with Bulgarian tax professionals, these are the errors that come up repeatedly:

• Assuming the 10% rate is the whole story. Social and health contributions on top of income tax mean your effective burden is closer to 20–25% if you are self-employed at moderate income levels — still low by EU standards, but not 10%.
• Not registering with the NRA at all. Some people spend 6–8 months in Bulgaria assuming they are invisible. The NRA has become more active in cross-border data sharing since 2024. Fines for late registration and failure to file start at BGN 500 and escalate.
• Treating the Digital Nomad Visa as a tax exemption. The visa is an immigration document. It does not grant tax exemption. Your tax position depends on residency rules, not visa category.
• Ignoring home-country obligations. Becoming a Bulgarian tax resident does not automatically end your obligations in your previous country of residence. Formally de-registering as a tax resident in your home country requires active steps — and evidence — in most jurisdictions.
• Using a cheap accountant who does not understand international situations. Many Bulgarian accountants are excellent for local businesses but unfamiliar with cross-border income, foreign tax credits, or treaty application. Ask specifically about their experience with foreign clients.

The crunch of bureaucratic paperwork — the NRA portal’s Cyrillic menus, the notary stamps, the apostilled documents — can feel overwhelming at first. But Bulgaria’s tax system is genuinely straightforward once you understand your residency status. Most expats who get into trouble do so not because the rules are complex, but because they avoided finding out what the rules were.

Frequently Asked Questions

Do I have to pay Bulgarian taxes if I work remotely for a foreign company while living in Bulgaria?

If you stay more than 183 days in Bulgaria or establish your centre of vital interests here, you become a Bulgarian tax resident. As a resident, you are taxed on worldwide income — including salary from a foreign employer. You must file a Bulgarian annual tax return and may also need to manage contributions to Bulgaria’s social security system, depending on your nationality and existing social insurance arrangements.

Can I keep my tax residency in my home country while living in Bulgaria on a Digital Nomad Visa?

Potentially yes, if you stay under 183 days and your centre of vital interests — family, property, business ties — remains in your home country. However, this requires careful day-counting and documentation. Staying a full year on a Digital Nomad Visa almost certainly crosses the 183-day threshold. Tax residency is determined by facts, not intention, and dual-residency situations require treaty analysis.

What is the Bulgarian tax filing deadline for individuals?

The annual personal income tax return is due by 30 April each year for the previous calendar year. For example, your 2025 income must be declared by 30 April 2026. Filing online via the NRA portal (nap.bg) is standard. Early filers (before 31 January) who file online receive a 5% discount on any tax owed, capped at BGN 500.

Is Bulgarian-sourced income the only thing taxed if I am a non-resident?

Yes. Non-residents are only taxed on income with a Bulgarian source — for example, rental income from a Bulgarian property or fees paid by a Bulgarian client. If you work remotely from Bulgaria for 30 days while remaining tax resident in France, Bulgaria cannot generally tax your French-client income. Crossing the 183-day threshold or establishing permanent residence changes this position entirely.

Do I need to register a Bulgarian company to work legally as a freelancer in Bulgaria?

Not necessarily a company — but you do need a legal structure if you are tax resident and conducting self-employed activity. The simplest option is registering a BULSTAT number and operating as a self-employed individual (liberal profession category). For higher incomes or more complex operations, an ET sole trader or EOOD limited company may be more appropriate. Operating without registration while tax-resident is non-compliant and carries penalties.

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📷 Featured image by Phakphoom Srinorajan on Unsplash.