The United States is one of only two countries in the world that taxes citizens on worldwide income regardless of where they live. Moving to Bulgaria does not end your US tax filing obligation — but it does give you access to powerful relief mechanisms that can reduce your US tax to zero on the first $132,900 of earned income (2026 FEIE), while Bulgaria taxes the same income at only 10% flat. Combined with the US-Bulgaria tax treaty (in force since 2008), FBAR/FATCA compliance, and Bulgaria's EU membership, euro adoption, and Schengen access, the result is one of the most tax-efficient setups available to American expats in Europe.
This guide is written for American citizens and green-card holders moving to Bulgaria — not for Bulgarian-Americans returning home (though the tax mechanics are similar). We cover the US filing obligations that follow you abroad, the critical difference between FEIE and Foreign Tax Credit, the trap of the missing totalization agreement, and how to structure your Bulgarian presence (freelancer vs EOOD) to minimise the combined US-BG tax burden.
Important: US tax law for expats is the most complex area of cross-border taxation we handle. This guide provides a framework — you must coordinate with a US expat tax preparer (we recommend working with a licensed US CPA or EA who specialises in expat returns) in addition to our Bulgarian team.
The US Worldwide Tax Obligation — It Follows You
Unlike every EU country (and almost every country in the world), the US taxes its citizens on worldwide income regardless of residence. This means:
- You must file a US federal tax return (Form 1040) every year, reporting all income from all sources worldwide — Bulgarian salary, EOOD dividends, freelance income, interest, capital gains, rental income, pension income, cryptocurrency gains, everything.
- If your total worldwide income exceeds the filing threshold (roughly $14,600 for single filers in 2026, lower for self-employed), you must file. Even if you owe zero tax after exclusions and credits, you must file.
- State tax obligations may also continue depending on your last US state of residence. California, Virginia, South Carolina, New Mexico and a few others are "sticky" states that can assert residency even after you leave. Most states release you on departure; a few do not. Check your specific state.
The saving grace is that the US provides two powerful mechanisms to avoid actually paying double tax:
1. Foreign Earned Income Exclusion (FEIE — IRC §911)
- Excludes up to $132,900 of foreign earned income from US taxation for 2026 (adjusted annually for inflation; $130,000 in 2025).
- Qualifying tests: you must pass either the bona fide residence test (tax resident of a foreign country for a full calendar year — Bulgaria at 10% qualifies) or the physical presence test (present outside the US for at least 330 full days in any 12-month period).
- Applies to earned income only: salary, self-employment income, freelance fees. Does not apply to dividends, capital gains, rental income, interest, or pension distributions.
- Practical effect: if you earn $120,000 as a freelancer in Bulgaria, the FEIE excludes all of it from US tax. You pay only Bulgarian 10% = $12,000. No US tax on that tranche.
2. Foreign Tax Credit (FTC — IRC §901)
- Provides a dollar-for-dollar credit against US tax for income taxes paid to Bulgaria (or any foreign country).
- Useful for income above the FEIE cap, for investment income (dividends, capital gains, rental), and for any income type not covered by the FEIE.
- You cannot use both FEIE and FTC on the same dollar of income. You must choose one mechanism per income category. In practice, most expats use FEIE on earned income up to $132,900 and FTC on everything else.
- Excess FTC carries forward for up to 10 years and can offset future US tax on foreign-source income.
FEIE vs FTC — the choice matters. If your Bulgarian tax rate (10%) is lower than your marginal US rate on the same income, the FTC will not fully offset the US tax, and you will owe a residual US liability. The FEIE avoids this by excluding the income entirely. For most American expats in Bulgaria earning under $132,900, the FEIE is the better choice. Above that, a combination of FEIE + FTC is typically optimal. Your US expat CPA should model both scenarios.
US Expat Moving to Bulgaria? We Coordinate Both Sides.
Bulgarian setup + US expat CPA coordination. One team, one plan.
Book Free 15-Min Call →FBAR and FATCA — The Reporting Obligations
Living in Bulgaria means you will have Bulgarian bank accounts, and possibly Bulgarian investment accounts. Both trigger US reporting requirements:
FBAR (FinCEN Report 114)
- Trigger: the aggregate value of all your foreign financial accounts exceeds $10,000 at any time during the calendar year.
- What counts: Bulgarian bank accounts (personal and corporate if you have signature authority), investment accounts, any account at a foreign financial institution.
- Filing deadline: 15 April (automatic extension to 15 October). Filed electronically via the BSA E-Filing System.
- Penalties: up to $10,000 per non-wilful violation per account per year. Wilful violations can reach $100,000 or 50% of the account balance. The IRS takes FBAR seriously.
FATCA (Form 8938)
- Trigger for expats filing singly: specified foreign financial assets exceed $200,000 at year-end or $300,000 at any point during the year. (Thresholds are higher for married filing jointly.)
- What counts: foreign bank accounts, foreign brokerage accounts, foreign stocks/securities held outside a US broker, interests in foreign entities (including your Bulgarian EOOD), foreign pension accounts, foreign life insurance.
- Filing: attached to your Form 1040, filed by the tax return due date.
- Penalties: $10,000 for failure to file, increasing to $50,000 for continued failure after IRS notification.
FBAR and FATCA overlap but are separate. You may need to file both. FBAR goes to FinCEN (Treasury); FATCA Form 8938 goes to the IRS with your tax return. Different thresholds, different forms, different agencies. Your US expat CPA handles both as part of the annual return preparation.
The US-Bulgaria Tax Treaty (2008)
The US-Bulgaria income tax convention was signed on 23 February 2007, ratified by the US Senate on 23 September 2008, and entered into force on 15 December 2008. It is the first income tax treaty between the two countries. Full text available at US Treasury and IRS.
Key withholding rates
| Income type | US domestic rate | Treaty rate |
|---|---|---|
| Dividends (10%+ voting power) | 30% | 5% |
| Dividends (other) | 30% | 10% |
| Interest | 30% | 5% |
| Royalties | 30% | 5% |
Other key provisions
- Residence tie-breaker: permanent home → centre of vital interests → habitual abode → nationality → mutual agreement. Note: US citizens are always US tax residents regardless of the treaty tie-breaker (the "saving clause"). The treaty prevents double taxation through the FTC mechanism, not by releasing US citizens from US tax.
- Business profits: taxed only in the state of residence unless PE exists in the other state.
- Pensions: generally taxable in the state of residence (Bulgaria, at 10%) for private pensions. US Social Security benefits are typically taxable only in the US under the treaty.
- Capital gains: generally taxed in the residence state. Specific provisions for real estate gains (situs state retains rights).
The Missing Totalization Agreement — The Hidden Cost
This is the fact that surprises every American expat in Bulgaria. There is no social security totalization agreement between the US and Bulgaria. The US has 30 active totalization agreements (with countries like the UK, Germany, France, Netherlands, Canada, Australia, Japan) — but Bulgaria is not among them.
What this means in practice:
- Self-employed Americans in Bulgaria may be liable for both US self-employment tax (Social Security + Medicare = 15.3% on net self-employment income up to the Social Security wage base, 2.9% above) and Bulgarian social security contributions (approximately 32-33% total, employer + employee portions for EOOD owner-managers).
- Employed Americans working for a Bulgarian employer pay Bulgarian social security (employee portion ~13.78%) and may still owe US self-employment tax if the IRS considers the arrangement self-employment under US classification rules — or they may qualify for an exception under the FEIE housing exclusion. This is fact-specific.
- No credit between systems: Bulgarian social security contributions are not creditable against US self-employment tax, and vice versa. They are two separate systems with no coordination.
- Retirement implications: years of Bulgarian social security contributions do not count toward US Social Security quarters of coverage, and vice versa. If you need 40 quarters (10 years) for US Social Security eligibility, time in Bulgaria does not help.
This is the single biggest hidden cost for self-employed Americans in Bulgaria. The 15.3% US SE tax on top of 10% Bulgarian income tax and Bulgarian social contributions can push the effective combined rate above 40% for self-employed individuals — negating much of Bulgaria's low-tax advantage. Structuring through a Bulgarian EOOD (where you are an employee-manager, not self-employed) can reduce the SE tax exposure, but the CFC/GILTI rules then apply. This requires careful US-BG tax planning. Do not wing it.
EOOD vs Freelancer — The US Angle
For most EU citizens, the freelancer-vs-EOOD decision is straightforward. For US citizens, the US anti-deferral rules add a critical layer:
Bulgarian freelancer (свободна професия)
- Bulgarian tax: 7.5% effective (25% expense deduction + 10% on 75%).
- US tax: income is "earned income" eligible for FEIE exclusion up to $132,900. Above that, FTC applies.
- US SE tax: 15.3% on net self-employment income. No credit for Bulgarian social contributions (no totalization agreement). This is the pain point.
- FBAR/FATCA: lighter reporting — no foreign entity to report beyond bank accounts.
- Best for: Americans earning under ~$100,000 who want simplicity and can absorb the SE tax.
Bulgarian EOOD
- Bulgarian tax: 10% CIT on profits + 5% dividend tax on distributions = 15% combined.
- US tax — CFC/GILTI trap: a Bulgarian EOOD owned by a US citizen is a Controlled Foreign Corporation (CFC). Under IRC §951A (GILTI — Global Intangible Low-Taxed Income), the US currently taxes CFC income at a reduced rate, but the effective US tax depends on the Section 250 deduction, the EOOD's "tested income", and whether you can claim a Foreign Tax Credit for the Bulgarian CIT. The math is complex and changes frequently.
- US SE tax: potentially reduced if you are classified as an employee-manager of the EOOD (not self-employed). If the EOOD pays you a salary and makes employer social contributions, the Bulgarian employment income may qualify for the FEIE, and the salary is not subject to US SE tax (you are an employee, not self-employed).
- FBAR/FATCA: heavier — you must report the EOOD as a foreign entity on Form 8938, and may need to file Form 5471 (Information Return of US Persons With Respect to Certain Foreign Corporations) annually.
- Best for: Americans earning above ~$130,000 who need liability protection and can justify the compliance cost (Form 5471 alone adds $500-2,000/year to your US return preparation).
The practical compromise many American expats use: register as a Bulgarian freelancer for simplicity; accept the US SE tax hit on the first $132,900 (partially offset by the FEIE); and keep the filing burden light. If your income exceeds $150,000 or you need liability protection, switch to an EOOD and add Form 5471 to your compliance stack. In both cases, hire a US expat CPA who knows GILTI, Subpart F, and the FEIE/FTC interplay.
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Book Free Consultation →Tax Comparison: US vs Bulgaria (2026)
| Tax Category | US (2026) | Bulgaria (2026) |
|---|---|---|
| Personal income tax | 10% / 12% / 22% / 24% / 32% / 35% / 37% (progressive) | 10% flat |
| State income tax | 0% - 13.3% (varies by state) | None |
| Self-employment tax | 15.3% (SS + Medicare) | ~32-33% total SSC (but capped) |
| Corporate tax | 21% federal + state | 10% |
| Dividend tax | 0% / 15% / 20% (qualified) + 3.8% NIIT | 5% |
| Capital gains (long-term) | 0% / 15% / 20% + 3.8% NIIT | 0% EU/EEA regulated market / 10% other |
| Estate tax | 40% above $13.61M exemption (2026) | 0% for close relatives |
| FEIE exclusion | $132,900 (2026) | n/a |
| Worldwide taxation | Yes (citizenship-based) | Yes (residence-based, 183 days) |
Immigration: Type D Visa and Digital Nomad Visa
US citizens can visit Bulgaria visa-free for up to 90 days in any 180-day period. For permanent relocation:
- Type D business visa: if you register a Bulgarian EOOD, apply for the Type D visa as a company founder at the Bulgarian Embassy in Washington, DC or the Consulate General in New York, Chicago, or Los Angeles.
- Digital nomad visa: if you work remotely for a US employer or company, you may qualify for the DN visa (EUR 31,010 income threshold). See our Digital Nomad Visa Application Guide.
- Residence permit: 12 months initially, renewable annually. Permanent residence after 5 years of continuous legal residence (with at least 30 months of physical presence).
401(k), IRA, Roth IRA, and Social Security
- 401(k) and traditional IRA: can be kept with US custodians. Distributions are US-source income, taxable in the US at marginal rates. Also reportable in Bulgaria as worldwide income — but the US-BG treaty and FTC should prevent double taxation. Withdraw strategically when your US income is low.
- Roth IRA: qualified distributions are tax-free in the US. Bulgaria does not have a Roth equivalent concept — the NRA may treat Roth distributions as taxable income at 10%. This area is unsettled; confirm with a cross-border tax adviser.
- US Social Security benefits: continue to be paid abroad. Under the US-BG treaty, Social Security benefits are generally taxable only in the US. Since there is no totalization agreement, years worked in Bulgaria do not count toward US quarters of coverage.
Setup Timeline for a US Citizen
- Month -3: engage a US expat CPA for tax modelling (FEIE vs FTC, SE tax, GILTI). Decide on structure (freelancer vs EOOD). Order FBI background check or state-level criminal record certificate + apostille.
- Month -2: register a Bulgarian EOOD remotely if choosing the company route. Prepare Type D visa documents, translations, apostilles. Book consulate appointment.
- Month -1: apply at the Bulgarian Embassy/Consulate. Notify last US state of departure. Change address for IRS correspondence (Form 8822). Notify Social Security Administration if receiving benefits.
- Day 0 to +14: arrive in Bulgaria. Apply at the Migration Directorate within 14 days for residence permit.
- Week 2-4: receive residence permit + LNCH. Open Bulgarian bank account. Register with NRA.
- Month 2-3: first income through Bulgarian structure. Bulgarian accountant starts monthly filings.
- April following year: file US Form 1040 with FEIE (Form 2555) or FTC (Form 1116) + FBAR + Form 8938 + Form 5471 (if EOOD) + Bulgarian annual tax return.
Common Mistakes American Expats Make
1. Not filing US taxes because "I live abroad now"
US citizenship = US filing obligation, worldwide, for life. Not filing is a federal crime. The IRS Streamlined Filing Compliance Procedures exist for late filers who were unaware, but prevention is better than cure.
2. Forgetting the FBAR
The $10,000 aggregate threshold is low — a single Bulgarian bank account can trigger it. Penalties are severe ($10,000+ per violation). File every year, even if balances are modest.
3. Ignoring the self-employment tax trap
15.3% US SE tax on top of Bulgarian income tax and Bulgarian social contributions adds up fast. Model the total burden before choosing a structure.
4. Setting up an EOOD without understanding CFC/GILTI
A Bulgarian EOOD owned by a US citizen is a CFC. GILTI applies. Form 5471 is mandatory. The compliance cost alone ($500-2,000/year extra) must be factored in. Get US advice before incorporating.
5. Using the FEIE and FTC on the same income
You cannot double-dip. Choose one mechanism per income tranche. Your US CPA optimises this annually.
Common questions before booking:
Can I just renounce US citizenship? Yes, but there is an "exit tax" (IRC §877A) for covered expatriates (net worth $2M+ or average net income tax $190,000+ over 5 years). Renunciation is permanent and expensive to reverse. Most US expats in Bulgaria find that the FEIE + FTC combination makes staying a US citizen perfectly workable.
Do you prepare US tax returns? No — we handle the Bulgarian side (company, residence, Bulgarian tax). For US returns, we coordinate with licensed US CPAs who specialise in expat filings. We ensure both sides align.
Is Bulgaria's 10% tax "too low" for the FTC to work? Sometimes yes — the FTC only offsets US tax dollar-for-dollar. If your effective Bulgarian rate is lower than your US marginal rate on the same income, there is a residual US liability. The FEIE avoids this for earned income up to $132,900.
Get Your Personal US-to-Bulgaria Tax Plan
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Frequently Asked Questions
Do I still have to pay US taxes if I live in Bulgaria?
What is the FEIE and how does it work?
What is the US-Bulgaria tax treaty?
Is there a US-Bulgaria social security agreement?
What are FBAR and FATCA?
Do I need a visa to live in Bulgaria?
Should I use a freelancer or EOOD structure?
What happens to my 401(k) and IRA?
Ready to Move from the US to Bulgaria?
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Book Free Consultation →Disclaimer: This article provides general information about relocating from the United States to Bulgaria and does not constitute US or Bulgarian tax advice. US citizenship-based taxation, CFC/GILTI, FBAR, FATCA, and the interaction with Bulgarian rules are highly complex and fact-specific. US tax matters must be handled by a licensed US CPA or EA specialising in expat returns. Consult our team for Bulgarian-side advice tailored to your situation. Last updated: April 14, 2026.