Bulgaria has one of the simplest tax codes in the European Union. The headline is a 10% flat rate. The reality, especially when you still have UK income, property or pensions, is more nuanced. This guide walks you through every tax you are likely to meet as a British resident, with the seven traps that catch the unwary.
Bulgaria is famous for one thing in tax circles: the 10% flat rate. It applies to almost every type of personal income, with no tax-free allowance and no progressive bands. To benefit, you need to be a Bulgarian tax resident. Once you are, the Bulgarian National Revenue Agency (НАП, "the NRA") taxes you on your worldwide income.
You become a Bulgarian tax resident if you meet either of these tests. Both are independent. You do not need to satisfy both.
Once you are tax resident in Bulgaria, you must declare your worldwide income to the NRA. That means UK rental income, UK private pensions, dividends from US shares, crypto gains on Coinbase, all of it. The 10% rate often makes this less painful than it sounds, but the declaration itself is mandatory. Failure to declare is tax evasion, and Bulgaria automatically receives data on your foreign accounts under the Common Reporting Standard (CRS) which UK banks have to share.
For the avoidance of doubt: just owning a Bulgarian property does not make you tax resident. Holding a residence permit on its own does not make you tax resident. It is the day count or the centre of vital interests that triggers it.
If you are on a Bulgarian payroll, your employer handles tax and social insurance at source, and for most people there is nothing more to do. Your payslip is a one-page document that splits your gross pay into three deductions and a final net figure. Here is what each line means in plain English.
| Gross salary (брутна заплата) | EUR 1,800.00 |
| Pension contribution (ДОО), 8.38% | -EUR 150.84 |
| Supplementary pension (ДЗПО), 2.20% | -EUR 39.60 |
| Health insurance (ЗО), 3.20% | -EUR 57.60 |
| Subtotal: employee social contributions (13.78%) | -EUR 248.04 |
| Taxable income | EUR 1,551.96 |
| Income tax (ДДФЛ), 10% of taxable income | -EUR 155.20 |
| Net pay (нетна заплата) | EUR 1,396.76 |
Bulgaria caps social contributions at EUR 2,111.64 of monthly insurable income for 2026. If your gross salary is EUR 3,000, you only pay social contributions on the first EUR 2,111.64. The 10% income tax, however, applies to the rest of your salary as normal. This makes Bulgaria unusually attractive for higher earners compared to the UK, where National Insurance has a much higher cap.
If your only income is from a single Bulgarian employer who has performed the year-end reconciliation, no. Your employer has filed everything for you. But you do need to file Form 50 by 30 April if any of the following apply:
If you work for yourself, you have three structures to choose from in Bulgaria. They look superficially similar but the tax bills can vary by 10 percentage points or more depending on the path you pick. Here is the head-to-head.
A registered "свободна професия", e.g. consultant, designer, writer, IT contractor, lawyer.
Едноличен търговец. For shopkeepers, tradespeople, restaurants, anyone with stock or premises.
Еднолично дружество с ограничена отговорност. A separate legal entity.
Whichever self-employed path you choose, you are a self-insured person for social purposes. That means you must pay social and health contributions every month, whether you earned anything or not, on a base you choose between EUR 550.66 (the legal minimum for 2026) and EUR 2,111.64 (the legal maximum).
Most freelancers insure on the minimum base, which costs roughly EUR 175 per month in 2026. This buys the same NOI pension build-up and NHIF healthcare access as employees get. If you skip a month, your healthcare entitlement lapses after a few months of arrears and you have to repay the back-dated contributions to restore cover.
One important nuance for the freelance route: your social base is calculated on 75% of your gross income (after the automatic 25% expense deduction), within the EUR 550.66 to EUR 2,111.64 range.
The freelance 7.5% effective rate is hard to beat for solo earners. The EOOD becomes attractive when you want to:
Setup costs an EOOD around EUR 200 to 400 in legal fees, plus ongoing accounting (typically EUR 50 to 150 per month). For a freelancer netting under EUR 30,000 per year, the freelance route is almost always cheaper end to end. Above that, run the numbers with an accountant.
If you have moved to Bulgaria and you draw pensions from the UK, this is the section that will save you the most money. The rules are not always intuitive, and several types of UK pension are treated differently. Get them right and most British retirees pay either zero or 10% tax on their pension income overall, often less than they would in the UK.
If you have been employed or self-insured in Bulgaria long enough to qualify, NOI will pay you a Bulgarian state pension when you retire. This is exempt from Bulgarian income tax. Article 24 of the Personal Income Tax Act lists "income from statutory social and health insurance, in Bulgaria or abroad" as non-taxable. NOI does not deduct PIT from your pension, and you do not declare it on Form 50.
The UK State Pension is paid by the Department for Work and Pensions (DWP) based on your National Insurance record. It is a contributory social-security benefit, not a "government employer" pension.
Two rules combine to give a clean answer for a British resident in Bulgaria:
Result: under the current rules, your UK State Pension is generally exempt from Bulgarian PIT. You should still declare it on Form 50 (under "non-taxable income") because the NRA expects to see it, and you need an NT (No Tax) code from HMRC so the UK does not deduct tax at source either.
Your old employer's pension (defined benefit or defined contribution), a personal pension, a SIPP, or any private pension drawdown is a private pension. Article 17 says these are taxable only in your country of residence (Bulgaria). The 25% tax-free pension commencement lump sum is not automatically tax-free in Bulgaria; treat it as taxable unless your accountant confirms otherwise.
Practical steps to stop UK tax being deducted at source:
If you skip this step, your provider keeps deducting UK PAYE at 20% or 40%. You can reclaim it later, but it can take 12 to 18 months and you have to chase it.
This is the special case. If your pension is paid in respect of services rendered to the UK government, Article 18 of the treaty says it is taxable only in the UK. This covers:
The exception: if you are a Bulgarian national (not just resident, but a citizen), the rule flips and Bulgaria taxes your government service pension instead of the UK. For most British expats this exception does not apply, so the practical position is: government service pensions stay taxed in the UK, you do not need an NT code for these, and you declare them on Form 50 as non-taxable income (Bulgaria gives credit relief automatically).
The UK-Bulgaria Double Taxation Convention was signed on 26 March 2015 and entered into force on 15 December 2015. It replaced the 1987 treaty. The current text has since been modified by the Multilateral Instrument (MLI). It exists to prevent the same income being taxed twice and to set rules for which country gets first crack at each type of income.
| Income type | Article | Where taxed | Notes |
|---|---|---|---|
| UK State Pension | 17 | Bulgaria | Then exempt under PITA Art 24 (foreign statutory social insurance) |
| UK workplace, personal, SIPP pensions | 17 | Bulgaria | 10% in Bulgaria. Apply for NT code in UK to stop PAYE. |
| UK government service pensions (NHS, civil, military, police, teacher) | 18 | UK | Unless recipient is Bulgarian national |
| UK rental income (UK property) | 6 | UK first, Bulgaria second | UK NRL scheme + Bulgaria 10% with credit relief |
| UK property capital gains | 13 | UK first, Bulgaria second | UK NRCGT (60-day reporting) + Bulgaria 10% with credit relief |
| UK company dividends | 10 | Bulgaria | UK can withhold up to 5%, claim back via tax return |
| UK bank interest | 11 | Bulgaria | UK can withhold up to 5% |
| Salary from UK employer (working in Bulgaria) | 14 | Bulgaria | If you are a Bulgarian resident, your work income is taxed where you actually work |
| Bulgarian-source income | 21 | Bulgaria | UK gives full credit if you also report it there |
Bulgaria uses the credit method (Article 21). You declare your worldwide income to the NRA, calculate the Bulgarian tax due at 10%, and then deduct any UK tax you have already paid on the same income, capped at the Bulgarian liability. So if HMRC has taken GBP 600 of UK tax on your UK rental income and your Bulgarian liability would be EUR 500, you owe Bulgaria zero on the rental (the credit covers it) but you do not get a refund of the excess.
For most claims under the treaty (NT codes, dividend withholding refunds, capital gains exemptions) you need a Bulgarian Certificate of Tax Residence from the NRA. You apply at your local NRA office or via the NRA portal at nap.bg with a PIK code. The certificate is free and is normally issued within 7 to 14 days. Keep it on file: HMRC may ask for one each tax year.
Compared to the UK's Council Tax and Vehicle Excise Duty, Bulgarian local taxes are refreshingly modest. Both are set by your municipal council ("обшина") within statutory ranges, paid at the same office, and on the same schedule.
Your municipality charges an annual property tax based on the tax value of the property, which is a formula-derived figure that is normally well below market value. The statutory rate range is 0.1 to 4.5 per thousand (so 0.01% to 0.45%) of the tax value. Each council picks its rate within that band.
For a typical 80m² apartment in Shumen with a tax value of EUR 25,000 to 35,000, expect to pay EUR 50 to 130 per year for property tax alongside the rubbish-collection fee ("такса битови отпадъци", which appears on the same bill and is also council-set).
Vehicle tax is calculated from two components:
For a small modern hatchback (60kW, Euro 6, under 5 years old) in Shumen, expect EUR 25 to 50 per year. An older 150kW SUV without a catalytic converter could cost EUR 200 to 400.
Same payment schedule as property tax: 5% off if you pay everything by 30 April, otherwise split between 30 June and 31 October.
You pay both at your municipal tax office (in Shumen, the Местни данъци и такси department on Slavyanski Boulevard) or online via the council's portal at shumen.imeon.bg.
If you run a business, the moment your turnover crosses the registration threshold you have a hard 7-day window to register. Miss it, and the NRA can charge VAT retroactively on every invoice plus penalties. The 2026 rules are slightly different from previous years thanks to the EU's harmonised SME framework.
Bulgaria is a competitive base for retail investors. The 10% rate is low and there are useful exemptions, but the rules around what counts as a "regulated market" have shifted post-Brexit, and crypto is taxed in ways that catch out anyone used to the UK system. Read this section carefully if you trade actively.
The headline is simple: 10% on net annual gains, with one major exemption.
Shares listed on the London Stock Exchange are not exempt. Since the UK left the EU in January 2021, the European Commission has not issued a permanent equivalence decision for UK share trading venues. LSE-listed shares are now treated as third-country shares and attract the standard 10% Bulgarian capital gains tax. Brits arriving from the UK with portfolios full of FTSE 100 names often miss this. If your strategy depends on the EU/EEA exemption, hold the same companies via their continental European listings (many UK majors are dual-listed) or use US-listed depositary receipts as part of a planned approach with your accountant.
Dividends from Bulgarian companies: 5% withheld at source, no further tax to pay. Dividends from foreign companies (US, UK, EU): declared on Form 50 and taxed at 5% in Bulgaria as a final tax. The treaty caps source-state withholding at 5% (UK and most EU). If your foreign broker has withheld more, you reclaim the difference via the foreign tax authority.
The NRA treats cryptocurrency as a financial asset. The rules are the strictest of any retail investment category in Bulgaria, so this section is worth reading slowly.
For a British resident in Bulgaria the practical broker shortlist is:
If you want to get started on a single platform that handles UK shares, EU shares, US shares, ETFs and crypto in one account, eToro is the most familiar option for British expats. New users who sign up via the link below can earn up to $500 in free stocks for funding and trading their account.
One practical tip: download your annual eToro tax statement every spring and hand it to your Bulgarian accountant for Form 50 attachments.
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Bulgarian inheritance and gift tax is among the gentlest in Europe. For most family situations the answer is zero, especially between spouses and direct lineal descendants. Wider relatives and unrelated beneficiaries pay a small council-set rate, and only above a substantial threshold.
Several specific categories are also fully exempt: household furnishings, books and musical instruments, small farm implements, and property abroad on which inheritance tax has already been paid.
Mirrors the inheritance rules. Gifts between spouses and between direct relatives are exempt. Gifts to siblings and their children are taxed at 0.4% to 0.8%. Other gifts are taxed at 3.3% to 6.6%. The donor is normally liable but the parties can agree otherwise in writing.
None of this affects UK inheritance tax, which is based on the deceased's UK domicile, not Bulgarian tax residency. If you inherit a UK estate while living in Bulgaria, UK IHT applies under UK rules, then any Bulgarian gift/inheritance tax is calculated on top with credit relief under the treaty.
The Bulgarian tax year is the calendar year (1 January to 31 December). Your annual return is filed using Form 50 (Декларация по чл. 50 от ЗДДФЛ). The deadline is 30 April of the following year, with an early-bird discount if you file and pay by 31 March.
Filing is online via the NRA portal at nap.bg. You need either:
If digital filing feels intimidating, paper filing is still permitted at any NRA office. Bring two copies; one is stamped and returned to you.
Don't let the low rates lull you. The NRA shares financial data with HMRC under the Common Reporting Standard, so undeclared foreign accounts and undeclared UK income show up automatically. Here are the seven most common ways British expats trip up.
If you sell a house in the UK while living in Bulgaria, the UK has primary taxing rights. You must report the sale to HMRC within 60 days using the Non-Resident CGT (NRCGT) return and pay UK CGT on the gain since April 2015 (residential) or April 2019 (commercial). You must also declare the sale on Form 50 in Bulgaria. You will not be double-taxed (Bulgaria gives credit for UK tax paid), but failing to declare globally is tax evasion.
Same principle. Register as a non-resident landlord (form NRL1), receive rent gross of UK tax, file annual Self Assessment in the UK. Then declare the income again in Bulgaria on Form 50. The treaty stops you paying twice. Skipping the Bulgarian declaration does not.
Your UK ISA was tax-free in the UK. The moment you become a Bulgarian tax resident, the ISA wrapper means nothing to the NRA. Dividends and capital gains generated inside your UK ISA must be declared and taxed at 10% in Bulgaria as if the wrapper did not exist. The 0% capital gains exemption for EU/EEA-regulated markets can mitigate this if your ISA holds eligible shares, but anything LSE-only is fully taxable.
Since the UK left the EU, LSE-listed shares lost their place in the Bulgarian capital gains exemption. If you held a portfolio of FTSE companies and assumed it would be tax-free in Bulgaria, recheck. Frankfurt or Euronext listings of the same multinationals are still exempt; LSE-only companies are not.
You've held BTC for two years, swap it into ETH, swap that into SOL, swap into a stablecoin, never touch fiat. In the UK that's three CGT events; in Bulgaria it is identical. Each swap is a 10% calculation. Active traders are routinely shocked at year-end totals. Keep a clean ledger via Koinly, Coinpanda or eToro's tax statement.
You move to Bulgaria, your UK pension provider keeps deducting 20% PAYE for years because nobody told them to stop. You're paying both UK tax (illegitimately under the treaty) and 10% Bulgarian PIT on the same income. Recovering historical UK tax via R43 is possible but slow. Apply for the NT code before the first pension payment in your year of arrival.
Self-employed means paying social and health insurance every month, regardless of income. Three months of arrears and your NHIF healthcare access lapses. Six months and you start accumulating penalty interest. The fix is administratively painful (back-paying contributions plus interest); the prevention is a EUR 175 standing order.
The pattern across all seven: declare everything. Bulgarian tax on global income is usually 10% or less, and credit relief stops you paying twice. The only thing that genuinely costs is hiding things from a tax authority that already gets the same data from your UK bank.
By the day-count test, no (you need more than 183 days). But the centre of vital interests test is independent. If your family, your home and your work are all based in Shumen, you can still be Bulgarian tax resident even on four months physical presence. Conversely, a Brit who comes for 100 days each year, with all family and finances back in the UK, is not Bulgarian tax resident on either test.
State Pension: typically 0% in Bulgaria (Article 17 gives Bulgaria the right; Article 24 of PITA exempts foreign social-security pensions). Workplace pension: 10% in Bulgaria (Article 17 gives Bulgaria the right; no Article 24 exemption applies). Both should be supported by an NT code from HMRC so the UK does not deduct tax at source.
Bulgaria. Article 14 (Income from Employment) says employment income is taxed where the work is physically performed if you spend more than 183 days there. The harder question is whether your UK employer can keep paying you on PAYE. Most cannot (it creates a permanent establishment risk). The usual solution is to invoice your UK employer through a Bulgarian EOOD or as a freelancer, or for the UK employer to engage an Employer of Record (EOR) in Bulgaria. Get advice early.
Apply at your local NRA office (in Shumen, on Slavyanski Boulevard) or online at nap.bg with a PIK code. You need to be registered with the NRA and have a Bulgarian address. The certificate is free and takes 7 to 14 working days. It's valid for the calendar year shown on the certificate.
No general personal allowance like the UK's. Specific reliefs include: BGN 7,920 (about EUR 4,050) annual allowance for individuals with 50% or higher disability; up to BGN 6,000 (about EUR 3,070) per dependent child; deductions for voluntary pension, life and health insurance contributions up to 10% of taxable base for each. The 25% expense deduction for freelance professional services is the most useful for most readers.
The notary forwards the purchase deed to the council, but in practice you should walk into the local Местни данъци office with the deed, your residence card and your EGN within 60 days of completion. Property tax is then assessed and you start receiving annual bills.
Potentially yes. If the company's "central management and control" is in Bulgaria (you make all decisions from Shumen), HMRC and the NRA may both claim it as resident in their jurisdiction. The treaty's tie-breaker can help, but in practice most expats either keep the UK company genuinely UK-managed (board meetings in the UK, UK director) or close it and run a Bulgarian EOOD instead. Talk to a cross-border accountant before relying on this for long.
The US-Bulgaria treaty is separate and you'll want US-specialist advice if you have meaningful US-source income. Briefly: Bulgaria taxes US-listed shares at 10% on capital gains and 5% on dividends (with a US 30% withholding that drops to 15% with a W-8BEN form, of which you reclaim the rest via Bulgarian credit relief). Holders of US-domiciled ETFs should also be aware of UK and EU PRIIPs/MiFID restrictions on retail availability, often pushing readers toward UCITS-domiciled equivalents.
Tax law shifts. Practice varies between NRA regional offices. Your situation is unique. This guide is the best starting point we can give you and we update it as rules change, but it cannot replace a real conversation with someone qualified.
Look for a счетоводител (accountant) who:
Ask other British expats in Shumen, Varna or Sofia for recommendations. The wrong accountant on a low fee will cost you more in mistakes than the right one on a higher fee. If you want a Shumen-based starting point, ask in our newsletter and we'll point you to the practices our readers actually use.