Bulgaria 10% Flat Tax 2026: EU's Lowest PIT, Corporate, and Capital Gains Tax

Quick Answer / TL;DR

Bulgaria operates the simplest low-tax regime in the European Union. There is no special programme to apply for, no high property threshold, no minimum annual tax floor and no investor visa requirement for EU citizens. Becoming Bulgarian tax resident — typically by spending more than 183 days in the country or establishing your "centre of vital interests" there — gives you access to the country's flat-rate system: 10% personal income tax (PIT) on virtually all income types (employment, self-employment, capital gains, rental), 10% corporate income tax (CIT) on company profits, 5% dividend tax on distributions to individuals, and 10% withholding tax on most cross-border payments to non-treaty jurisdictions. There is no wealth tax. Social insurance contributions are layered on top — employer and employee shares combined are roughly 33%, capped on a maximum insurable base of BGN 4,130/month (about EUR 2,110) for 2026, which makes the effective social cost regressive (very low for high earners). For Polish citizens, Bulgaria is a frictionless EU move with no language barrier in Sofia's tech/expat circles, low cost of living, and a tax administration that is more procedurally transparent than reputation suggests. The downsides are weaker public services, slower banking compared to Western EU, and the need to genuinely live in Bulgaria — paper residency without substance is challenged by both the Bulgarian NRA and the Polish KAS. This article is informational content, not legal or tax advice. Consult a tax advisor before relocating.

Who Bulgaria Is For

Online entrepreneurs and freelancers — the 10% flat PIT plus capped social security make Bulgaria the cheapest EU jurisdiction for solo founders earning EUR 50,000–250,000/year through their own activity.

IT consultants and remote workers — full 10% effective income rate (vs Polish 12%/32% scale plus high uncapped ZUS) means tens of thousands of euros saved annually for senior engineers.

Crypto traders and investors — Bulgaria treats crypto gains as taxable capital gains at the 10% PIT rate, with reasonable interpretive guidance from the NRA. No special crypto regime is needed.

Holding-company founders — combination of 10% CIT on operating profits + 5% dividend tax to individual shareholder gives effective combined ~14.5% on distributed profits, comparable to Cyprus 12.5% CIT + 0% dividend, but with no Non-Dom complexity.

HNW individuals on relatively modest spending — the absence of wealth tax, low CGT, and Sofia's affordable lifestyle make Bulgaria practical for FIRE retirees, especially those whose net worth is in the EUR 500k–3m bracket.

Bulgaria is generally NOT the best fit for: zero-dividend-tax seekers (Cyprus wins), remittance-basis planners with foreign-income compartmentalisation (Malta wins), or those who want a prestigious passport / glamorous lifestyle (Monaco / Andorra).

Tax Rates by Income Type

Personal income tax (PIT)

Flat 10% on:

• Employment income (after mandatory social security deduction)
• Self-employment / freelance income
• Rental income (after 10% normative deduction)
• Capital gains on most asset types
• Interest income (with some exceptions)

There is no top band, no surtax, no solidarity contribution.

Dividends

5% flat withholding tax on dividends paid to Bulgarian-resident individuals from Bulgarian companies. Dividends from foreign companies received by Bulgarian residents are also taxed at 5%.

EU-domiciled dividends benefit from the Parent-Subsidiary Directive at the company level (0% withholding) and then 5% at the individual level. Non-EU dividends are subject to source-country withholding plus the Bulgarian 5%, with DTT credit usually eliminating double taxation.

Capital gains

10% PIT on most capital gains. Significant exemption: gains from disposal of shares on EU-regulated stock markets (XETRA, Euronext, GPW, etc.) are exempt under specific conditions — listed transferable securities traded on a regulated market within the EU/EEA. This is a non-obvious advantage that makes Bulgaria highly attractive for ETF investors.

Real estate gains: 10%, with exemption for sale of primary residence held more than 3 years (one property per year).

Crypto: treated as financial asset gains, 10% PIT, declarable in the annual return.

Interest

Bank interest income from Bulgarian banks: 8% final withholding (lower than the 10% flat — a quirk of the law). Bond coupons and similar: 10%.

Foreign-source income

Bulgaria taxes worldwide income at 10%. The country has 60+ DTTs (including with Poland) providing credit/exemption relief. Foreign dividends: 5%. Foreign capital gains: 10%, unless from EU-regulated markets (then exempt as above).

Corporate income tax (CIT)

10% flat on Bulgarian-company profits. No reduced-rate regimes, no patent box, no R&D super-deductions of the Western European kind. Simplicity over engineering.

Crypto

The Bulgarian NRA classifies cryptocurrencies as financial assets. Gains for individuals are taxed at 10% under PIT on the difference between sale price and acquisition cost. Mining and active trading may be classified as economic activity (self-employment) — taxed under PIT plus social security. There is no holding-period exemption, no DeFi-specific rules — the framework relies on general principles.

Rental income

10% PIT on rental income after a 10% normative deduction (so effectively 9% on gross). Optional: 5% patent tax for short-term rentals (tourism category) up to certain thresholds.

Social Security Contributions

This is the layered cost that the headline 10% does not capture.

For 2026, total social security rates (employer + employee combined):

• Pension: 19.8%
• General illness/maternity: 3.5%
• Unemployment: 1.0%
• Work injury / occupational disease: 0.4–1.1%
• Health insurance: 8.0%
• Total: ~33%

Split: employer ~19%, employee ~14%.

Crucially, all contributions are capped on a maximum insurable income of BGN 4,130/month in 2026 (about EUR 2,113/month or EUR 25,360/year). Above this cap, no further social security is due. This makes the effective social cost dramatically regressive — high earners pay a small fraction of their gross to social security.

For self-employed: the freelancer chooses an insurable income between the minimum (BGN 1,077/month in 2026) and the maximum (BGN 4,130/month), and pays contributions on the chosen base.

Eligibility: Bulgarian Tax Residency

Bulgaria uses one of the following tests under the Personal Income Tax Act (PITA) Article 4:

1. Permanent address in Bulgaria (registered residence)
2. More than 183 days in any 12-month period (not necessarily calendar year)
3. Centre of vital interests in Bulgaria — family, economic, social ties
4. Sent abroad by Bulgarian state/employer — narrow specific case

For most movers, the practical test is the 183-day rule combined with registering a Bulgarian permanent address (постоянен адрес). The NRA issues a tax residency certificate (удостоверение за местни лица) on request, which is then presented to foreign tax authorities for DTT purposes.

Application Process and Timeline

Bulgaria is the simplest EU residency setup. There is no investor scheme to navigate.

Step 1: EU registration (Bulgarian residence for EU citizens)

EU/EEA/Swiss citizens register at the Migration Directorate of the Bulgarian Ministry of Interior within 3 months of arrival. Required:

• Passport / national ID
• Proof of address (rental contract or property deed)
• Proof of resources or employment
• Health insurance

The certificate of residence (удостоверение за продължително пребиваване) is issued for 5 years, renewable.

Step 2: Permanent address registration

Register your permanent address (постоянен адрес) at the local municipality (община). Required: rental contract notarised by landlord, or property deed.

Step 3: Personal identification number (EGN / LNCh)

EU citizens get a personal foreigner number (ЛНЧ — Личен Номер на Чужденец). Issued together with the residence certificate.

Step 4: Tax registration (NRA)

Register with the Bulgarian National Revenue Agency (NRA) to obtain a personal tax identification, typically tied to the EGN/LNCh. Online registration via the NRA e-services portal.

Step 5: Social security registration (NSSI)

If working (employed or self-employed), register with the National Social Security Institute (NSSI). Self-employed registration includes choosing the insurable income base.

Step 6: Annual tax filing

Individual tax return due by 30 April of the year following the tax year. Filed electronically via the NRA portal with PIK code or electronic signature.

Costs

• EU residence certificate: BGN 25 (about EUR 13)
• Tax/legal advice setup: EUR 800–2,500
• Annual accounting (freelancer): EUR 500–1,500
• Bulgarian limited liability company (OOD/EOOD): about EUR 500 incorporation + EUR 1,000–2,500/year maintenance
• Sofia 2-bedroom rental: EUR 600–1,200/month depending on district
• Health insurance (top-up to public): EUR 30–80/month

Total set-up: under EUR 3,000 in fees. Significantly cheaper than Cyprus or Malta.

Worked Examples

Case 1: EUR 50,000 employment salary in Sofia

Bulgarian employee.

• Gross: EUR 50,000 (≈ BGN 97,800)
• Employee social insurance (~14% capped at BGN 4,130/month): annual cap ≈ EUR 3,550
• Income for PIT: roughly EUR 46,450
• PIT 10%: EUR 4,645
• Net: EUR 50,000 – 3,550 – 4,645 = EUR 41,805
• Employer social cost (on top): ~EUR 4,820 (capped)

Effective combined tax-and-social burden on the employee side: ~16%.

Same salary in Poland: PIT 12% on PLN 120k tranche then 32% above, plus ZUS uncapped about 13.7% employee — roughly EUR 13,000–14,000 total, net ~ EUR 36,000. Bulgaria saves ~EUR 5,800.

Case 2: EUR 100,000 portfolio dividends from EU/US ETFs

Bulgarian tax resident.

• Source-country WHT: typically 15% on US ETF distributions per DTT (US-BG treaty)
• Bulgarian dividend tax: 5% on EUR 100,000 = EUR 5,000
• DTT credit applies — Bulgaria credits foreign WHT against the Bulgarian 5%
• Net effective Bulgarian tax: 0 (foreign WHT exceeds 5%); irrecoverable WHT remains
• Net retention: roughly EUR 85,000 (after irrecoverable 15% US WHT)

Compared to Poland: 19% Belka = EUR 19,000, with full DTT credit reducing to EUR 4,000 additional after the 15% WHT credit. Net Polish: ~EUR 81,000.

Bulgaria nets slightly better, mainly because of the lower 5% domestic rate.

Case 3: EUR 100,000 capital gain on EU-listed ETF held at IBKR

Bulgarian tax resident sells EUR 100,000 of accumulated profit on a Xetra-listed ETF.

• Capital gain from disposal of shares on EU-regulated market: exempt under Bulgarian PIT Act Art. 13(1)(3).
• Tax due: 0

This is one of Bulgaria's quietly powerful provisions. Polish residents would owe 19% Belka = EUR 19,000 on the same gain.

Case 4: Freelance IT consultant invoicing EUR 80,000

Bulgarian sole trader.

• Self-employed PIT 10% (after 25% normative cost deduction in some service codes, but most IT consultants use actual cost accounting): approx EUR 7,200 on EUR 72,000 (after 10% reasonable expenses)
• Social security (chosen insurable income BGN 4,130/month): capped annual ~EUR 7,500
• Net: EUR 80,000 – 7,200 – 7,500 = EUR 65,300

Same profile in Poland: linear PIT 19% = EUR 15,200, ZUS social ~EUR 6,000–7,000, składka zdrowotna 4.9% = EUR 4,000. Net ~ EUR 53,800. Bulgaria advantage ~EUR 11,500/year.

Case 5: Founder distributing EUR 200,000 dividend from Bulgarian OOD

• Bulgarian OOD CIT 10%: tax already paid by company on EUR 222,000 profit (gross) → EUR 22,200, leaving EUR 200,000 distributable
• Dividend WHT to individual shareholder: 5% on EUR 200,000 = EUR 10,000
• Net to founder: EUR 190,000

Combined effective tax on EUR 222,000 of profit: 32,200 / 222,000 ≈ 14.5%.

Polish Citizen Angle

Exit tax (Polish): applies if qualifying assets above PLN 4 million at moment of changing residency. 19% on unrealised gain. As with all PL exits, plan around the threshold.

Belka tax (19%) on PL brokerage: continues to apply on Polish brokerage accounts held after the move. Polish brokers withhold/report regardless of declared foreign residency. Most movers transfer assets to a Bulgarian or international brokerage (Karoll, Elana Trading, or international like IBKR opening with Bulgarian address) and close PL accounts. IKE/IKZE pension wrappers cease accruing tax-efficient contributions when you become non-resident.

Poland-Bulgaria DTT (1994): standard OECD tie-breakers. Dividends: 10% maximum WHT (rarely matters in practice since Bulgaria's domestic rate is 5% and Poland's is 19%, so credit always applies). Pensions: private pensions taxed in residence country; state pensions in source country.

CFC rules: Polish CFC applies to controlled foreign companies of Polish residents. Bulgarian OOD held by still-Polish-resident shareholder triggers CFC unless certain substance tests are met. Once you become Bulgarian tax resident, Polish CFC no longer applies (Bulgaria has its own ATAD-aligned CFC rules but they are mild for typical setups).

ZUS exit: terminate JDG/działalność, deregister via ZUS ZWUA. A1 certificate for short-term transitions.

Banking: Bulgarian banks (UniCredit Bulbank, DSK Bank, Postbank, FIBank) accept EU citizens with residence certificate and EGN/LNCh. KYC is moderate — faster than Maltese banking but slower than Polish digital banks. International banks (Revolut, N26) often used as parallel.

Healthcare: register with the National Health Insurance Fund (NHIF / НЗОК). EU citizens with S1 form (retirees) or local registration via NSSI for workers. Public healthcare is functional but most expats top up with private insurance (Bulstrad, DZI, ZAD).

Language: Cyrillic alphabet and Bulgarian language are real barriers outside Sofia/Plovdiv tech scenes. Sofia has a strong English-speaking startup ecosystem.

Risks

Substance and centre of vital interests: Polish KAS can challenge a Bulgarian residency claim if family, business, and centre of life remain in Poland. The 183-day count is necessary but not sufficient — a "Bulgarian permanent address" used only for ~4 months a year while spending the rest in Poland will be re-attributed.

Cap quirk on social security: the cap is generous (about EUR 25k/year insurable income), but it means high earners are under-insured — your future pension and disability benefits are tiny relative to your income. Plan private retirement savings.

Bureaucracy in Cyrillic: documents from Bulgarian agencies arrive in Bulgarian only. Notarisation, sworn translation and apostille for use abroad add cost and time. Expect to use a Bulgarian-speaking lawyer or accountant.

Banking onboarding: Bulgarian KYC for non-Bulgarians has tightened post-2022 sanctions environment. Allow 1–2 months for account opening.

Public services quality: healthcare, education, court system in Bulgaria lag Western EU. The 10% rate has a cost in the form of less robust state infrastructure.

EU regulatory drift: Bulgaria's 10% flat rate is occasionally discussed in EU harmonisation contexts. As of 2026 no proposals have advanced to law, but the topic returns periodically.

When NOT to Choose Bulgaria

If you need premium public services, top-tier healthcare or elite schools, Bulgaria is a step down from PT/CY/MT for non-financial reasons.

If your portfolio is dividend-heavy from non-EU sources (US individual stocks, etc.), Cyprus Non-Dom's 0% on dividends still beats Bulgaria's 5%.

If you cannot live in Sofia and want a coastal Mediterranean lifestyle, Cyprus, Malta, Portugal or Spain are better cultural fits.

If you do not want to learn any Cyrillic / basic Bulgarian, day-to-day life outside Sofia tech bubble is harder than English-friendly Cyprus or Malta.

If your business genuinely runs from Poland and the move would be paper-only, the substance risk eliminates the savings under PL anti-avoidance and EU ATAD3.

FAQ

Is the Bulgarian 10% rate really 10% on everything? On most income types yes — PIT, corporate, capital gains, rental. Dividends are 5%. Interest from Bulgarian banks 8%. Social security is layered on top of employment/self-employment income with a cap.

Do I need a special visa to move to Bulgaria as a Polish citizen? No. EU free movement applies. You register at the Migration Directorate within 3 months and get a 5-year residence certificate.

Can I trade ETFs tax-free in Bulgaria? Capital gains on disposals of shares on EU-regulated stock markets are exempt under PITA Art. 13(1)(3). Most major EU-listed ETFs qualify. This is one of the strongest Bulgarian advantages for FIRE investors.

How does Bulgaria tax crypto? Crypto is treated as a financial asset. Gains taxed at 10% PIT. Active/business trading may be classified as economic activity (self-employment).

What is the minimum stay to become Bulgarian tax resident? 183 days in any 12-month period under the day-count test, OR a permanent address + centre of vital interests in Bulgaria.

Are pensions taxed in Bulgaria? Bulgarian state pensions: not taxed. Foreign pensions received by Bulgarian residents: 10% PIT under standard rules, with DTT relief.

Is there a wealth tax? No. There is no annual wealth tax in Bulgaria.

Tracking Cross-Border Wealth

A Bulgarian mover often ends up with: EUR balances at a Bulgarian bank (DSK or UniCredit), USD/EUR ETFs at an international broker, residual PLN at mBank/PKO, crypto at Kraken/Binance, and maybe a Polish flat for rental. Aggregating that across BGN, EUR, USD, PLN takes more than a spreadsheet. Freenance's multi-currency net-worth tracking with live FX shows the picture in one base currency, with a Financial Freedom Runway view that surfaces how a BGN/EUR currency peg break or PLN swing would change your time to FIRE.

Sources

• Bulgarian Personal Income Tax Act (Закон за данъците върху доходите на физическите лица)
• Bulgarian Corporate Income Tax Act
• Social Security Code (Кодекс за социално осигуряване)
• NRA (National Revenue Agency) guidance on residency, crypto, exempt securities transactions
• Migration Directorate guidance on EU residence certificates
• Poland-Bulgaria Double Tax Treaty (1994)
• Polish PIT Act, Articles 30da–30dh (exit tax)
• EU ATAD III draft / Unshell Directive proposals

This is informational content, not legal or tax advice. Consult a tax advisor before relocating.