Estonia vs Bulgaria for a Small Online Business: 0% on Retained Profit vs 10% Flat
Estonia and Bulgaria are the two cheapest, most-recommended EU countries for a small online business, and their headline tax numbers are not actually comparable. Estonia charges 0% on profit you keep in the company and 22% (calculated as 22/78 of the net payout) only when you distribute it. Bulgaria charges a flat 10% on profit every single year, whether you touch it or not. Which country ends up cheaper for you depends almost entirely on one question: do you reinvest, or do you pay yourself?
The short answer
If you reinvest most of your profit for several years, Estonia’s 0% on retained profit beats Bulgaria’s flat 10%, which falls due every year regardless of what you do with the money.
If you distribute most of your profit annually, Bulgaria’s combined ~14.5% (10% corporate tax + 5% dividend withholding) beats Estonia’s roughly 22% (22/78 of the distributed amount).
Bulgaria adopted the euro on 1 January 2026 as the eurozone’s 21st member, at a fixed rate of 1.95583 leva to €1 — the old “avoid lev volatility” argument for Estonia no longer applies.
Estonia’s e-Residency gives a fully remote, 100% digital formation and banking-adjacent setup; Bulgaria’s non-resident route works but usually needs a notarised, apostilled power of attorney and, in practice, an in-person bank visit.
VAT is higher in Estonia (24% since 1 July 2025) than Bulgaria (20% standard, 9% reduced), and the mandatory registration threshold is lower in Estonia (€40,000) than Bulgaria (€51,130 from 1 January 2026).
Neither country’s tax rate is the real decider — where you personally live, whether the company has real substance, and whether you can actually bank there matter more than the sticker rate.
What’s actually different about how the two countries tax profit?
The two systems tax profit at different moments, which is why comparing 0% to 10% head-on is misleading. Estonia runs a distributed-profit model: as long as profit stays inside the company — reinvested in inventory, ads, hires, or just sitting as retained earnings — the corporate tax bill is 0%. Tax only arrives when the company pays a dividend, at which point it owes 22% calculated as 22/78 of the net amount paid out, which works out to 22% of the gross pre-tax pot. Bulgaria runs the opposite model: 10% flat corporate income tax is due on net profit for the year it was earned, whether the company distributes a single euro or reinvests every cent. There is no Bulgarian deferral mechanism comparable to Estonia’s. The Estonian Tax and Customs Board publishes the current Estonian rates and rules.
If you reinvest for three years, which country is cheaper?
Estonia wins clearly, and the gap compounds every year you don’t distribute. Picture two identical online businesses, each earning €50,000 in profit before tax in each of three years, and each founder reinvesting all of it back into the business rather than paying it out. In Estonia, that profit is never taxed as long as it stays in the company. In Bulgaria, 10% is due annually no matter what the founder intends to do with the cash later.
Scenario, 3 years, €50,000 profit/year | Estonia — tax due | Estonia — kept in company | Bulgaria — tax due | Bulgaria — kept in company |
|---|---|---|---|---|
Reinvest everything, Year 1 | €0 | €50,000 | €5,000 (10%) | €45,000 |
Reinvest everything, Year 2 | €0 | €100,000 (cumulative) | €5,000 (10%) | €90,000 (cumulative) |
Reinvest everything, Year 3 | €0 | €150,000 (cumulative) | €5,000 (10%) | €135,000 (cumulative) |
Distribute everything, each year | €11,000 (22% of gross pot) | €39,000 paid to founder | €7,250 (€5,000 CIT + €2,250 WHT) | €42,750 paid to founder |
Distribute everything, 3-year total | €33,000 total tax | €117,000 total to founder | €21,750 total tax | €128,250 total to founder |
Read the reinvestment rows first: after three years of ploughing everything back in, the Estonian company has €150,000 sitting inside it, untaxed, versus €135,000 in the Bulgarian company after paying €15,000 in cumulative corporate tax. That €15,000 gap is pure opportunity cost for the Bulgarian founder — capital that could have funded another year of ads or a hire, gone to the treasury instead. The longer profit stays reinvested, the wider this gap grows, because Estonia’s deferral has no expiry date.
If you distribute every year instead, does the ranking flip?
Yes — look at the bottom two rows of the table above. A founder who pays out the full profit every year nets €39,000 per year in Estonia after a €11,000 corporate tax charge (22% of the gross pot), against €42,750 per year in Bulgaria after a combined €7,250 in corporate tax and dividend withholding tax (roughly 14.5% all-in). Over three years that is €117,000 landed in Estonia versus €128,250 landed in Bulgaria — an €11,250 advantage for the founder who takes an income from a Bulgarian company rather than an Estonian one, before any personal tax back home is even considered.
So what should actually decide your choice?
Your reinvestment ratio. The more of each year’s profit you plan to keep working in the business rather than pay to yourself, the more Estonia’s deferral is worth.
Your time horizon. A founder planning to build for 5+ years before any exit or big payout benefits far more from 0% compounding than a founder who needs to draw a salary-equivalent every month.
Your personal tax residency. Neither country’s corporate rate changes what you owe personally at home — a dividend received still has to be declared wherever you are tax resident, and a double tax treaty only allocates the taxing rights, it never produces zero tax.
How you’ll actually live day to day. If you need to draw cash out monthly to pay rent, distribution is the real scenario for you, not the reinvestment one — plan around the numbers that match your real life, not the flattering ones.
The headline rate is the least useful number in this whole comparison — what decides the real cost is whether the money ever leaves the company, and when.
What did Bulgaria’s move to the euro actually change?
Bulgaria became the eurozone’s 21st member on 1 January 2026, at a fixed, irrevocable rate of 1.95583 leva to €1. Dual circulation ran through January 2026, with the lev fully retired as legal tender since 1 February 2026. Practically, this removes a currency-conversion layer from bookkeeping: as of 2026 both Estonia and Bulgaria invoice, report VAT, and set every statutory threshold in euros, so cross-border EU invoicing, payment processors, and accounting software behave the same way on either side.
Dual pricing in both lev and euro on receipts and invoices stays mandatory until 8 August 2026 — don’t be surprised to still see BGN figures on Bulgarian paperwork for a while.
All size thresholds for VAT, micro/small enterprise classification, and audit triggers are now fixed in EUR going forward rather than a floating BGN figure.
The old argument that Estonia was “safer” because it avoided lev volatility no longer holds — that difference is gone as of 2026 and shouldn’t feature in an honest comparison anymore.
How do VAT rates and registration thresholds compare?
Estonia | Bulgaria | |
|---|---|---|
Standard VAT rate | 24% (since 1 July 2025) | 20% |
Reduced VAT rate | 9% on specific goods/services | 9% on specific goods/services (e.g. books, some tourism) |
Mandatory registration threshold | €40,000 annual turnover | €51,130, measured over a calendar year (since 1 January 2026) |
Voluntary registration below threshold | Allowed | Allowed |
EU distance-selling (OSS) threshold | €10,000 EU-wide, quarterly OSS return | €10,000 EU-wide, quarterly OSS return |
Bulgaria’s VAT threshold has moved twice in the last two years, so treat €51,130 as current rather than permanent and check current NRA guidance before you rely on it for planning. Estonia’s €40,000 threshold and 24% rate are settled and unlikely to move again this year. For most small online businesses selling to consumers across the EU, the OSS mechanism matters more day to day than either domestic threshold, since it puts the VAT rate on the customer’s country once you’re above €10,000 in EU-wide distance sales.
Can a non-resident actually set up and bank in each country?
Estonia: built for remote founders from day one
Yes, and this is Estonia’s clearest structural advantage. e-Residency gives you a digital ID that lets you register, sign documents for, and manage an OÜ entirely online, often within a single business day once your e-Residency card is issued. It is worth repeating that e-Residency is not tax residency — it doesn’t change where you personally owe tax, it just makes running the company paperless. Traditional Estonian banks frequently decline pure non-residents with no local ties, so in practice most e-resident founders bank through an EMI (Wise, Payoneer, Revolut Business) rather than a deposit-insured bank — a real limitation, but one you can plan around from day one.
Bulgaria: possible, but leaning on paperwork and travel
Yes, with meaningfully more friction. There’s no citizenship or residency requirement to own 100% of an EOOD (single-member) or OOD (multi-member) company, and minimum share capital is a nominal €1. But a non-resident founder who can’t travel typically needs a notarised power of attorney — apostilled if coming from a Hague Convention country — translated into Bulgarian, so a local lawyer can file on their behalf. Registration itself often takes 1–3 business days once the paperwork is complete, but the notarisation-and-courier round trip commonly stretches the whole process to 2–3 weeks. Banking is the sharper pain point: most Bulgarian banks expect the director to appear in person, and opening purely by power of attorney is rarely accepted, so a non-resident founder should plan on an EMI here too, with more enhanced-due-diligence friction than in Estonia.
How do payroll and social security costs compare if you hire?
Estonia: personal income tax 22% flat, with a €700/month basic exemption from 2026. Employer social tax 33% on top of gross salary, plus 0.8% employer / 1.6% employee unemployment insurance and a 2% employee pension contribution. Minimum wage is two-tier in 2026: €886/month January–March, rising to €946/month from 1 April.
Bulgaria: personal income tax 10% flat on employment income. Combined employer-plus-employee social security and health contributions run roughly 32.7%–33.4% of gross pay, split as employer ~18.92%–19.62% (occupational-risk-class dependent) and employee ~13.78%, up to a monthly ceiling of €2,111.64 — income above that ceiling carries only the 10% income tax with no further social contributions.
Net effect for a founder hiring one or two people: Bulgaria’s flat 10% personal rate plus a capped social-security ceiling generally makes payroll cheaper in total than Estonia’s higher rates and uncapped 33% employer social tax, though the exact gap depends on the salary level and Bulgaria’s risk-class assignment — verify the specific employer rate for your activity before budgeting.
What annual reporting and audit will you actually face?
Estonia: every OÜ files an annual report (majandusaasta aruanne) within six months of financial year-end — 30 June for a calendar-year company. Late filing carries fines of up to €3,200 per violation, repeatable, against the company and board members personally. Source documents must be kept for 7 years.
Bulgaria: every EOOD/OOD files annual financial statements with the Commercial Register. Micro enterprises (roughly under €357,900 balance-sheet assets, €715,800 net revenue, 10 staff) and small enterprises (roughly under €1,022,600 assets, €2,045,200 revenue, 50 staff) are generally exempt from statutory audit unless they’re a joint-stock company or public-interest entity — which covers almost every small online business.
Neither country requires an audit for a typical solo-founder online business, but both require the annual filing itself without exception, and both attach real penalties for skipping it.
What substance and local-presence expectations apply?
Both countries let a non-resident own 100% of the company with no local director requirement, and both require a registered local address as a standard formality rather than a special substance test — in Estonia this comes as a legal address plus contact-person service, in Bulgaria as a registered office, typically through a registered-agent or virtual-office provider. Neither registration by itself decides where the company is actually taxed. If the business is run day to day from the founder’s home country, place of effective management, permanent establishment, and controlled foreign company (CFC) rules in that home country can pull the company’s profits into that country’s tax net regardless of the Estonian or Bulgarian sticker rate. This caveat applies with equal weight to both jurisdictions and to any similarly structured EU company.
Does the 15% global minimum tax (Pillar Two) matter here?
No, not for a business this size, and it’s worth saying plainly rather than letting the headlines cause needless worry. Bulgaria’s qualified domestic minimum top-up tax has applied since 1 January 2024, but it only bites groups with consolidated annual turnover of at least €750 million in at least two of the last four years. A solo founder or small team running an online shop, agency, or SaaS product is nowhere near that threshold, in either Bulgaria or Estonia (which has its own EU-driven Pillar Two scope at the same €750 million line). Mention it, dismiss it, move on — the 10% or 22/78 numbers above remain the real ones for readers of this article.
So which one should you actually pick?
Pick Estonia if you’re building for the medium-to-long term, plan to reinvest most profit for at least a couple of years, want the fastest fully remote setup available anywhere in the EU, and can live with an EMI rather than a traditional bank. Pick Bulgaria if your business model requires you to draw most of the profit out every year as personal income, you’re comfortable handling (or paying for) a notarised power-of-attorney formation process, and you can arrange the in-person banking step. Many founders start in one and never need to reconsider, because most small online businesses settle firmly into one pattern — steady reinvestment, or steady distribution — well before three years are up.
Frequently asked questions
Is Estonia’s 0% tax rate really zero?
Yes, but only on profit that stays inside the company. Estonia charges 0% corporate income tax on retained and reinvested profit, with tax deferred until the company actually distributes a dividend, at which point 22% (as 22/78 of the net payout) applies. It is not a permanent zero if you ever plan to take the money out.
Is Bulgaria’s 10% tax really flat, with no exceptions for small companies?
Yes — Bulgaria applies a single flat 10% corporate income tax rate to net profit, with no reduced-rate tier for small businesses and no deferral for reinvested profit. It is charged annually regardless of whether the company distributes anything to shareholders.
Does e-Residency give me Estonian tax residency?
No. e-Residency is a digital ID that lets you register and run an Estonian company remotely — it does not make you a tax resident of Estonia and does not change where you personally owe income tax. Your personal tax residency is decided by your home country’s rules, not by holding an e-Residency card.
Can I open a bank account remotely in either country?
Realistically, not with a traditional bank in either country. Estonian banks often decline non-residents with no local ties, and Bulgarian banks generally expect the director to appear in person. Most non-resident founders in both countries end up using an EMI such as Wise, Payoneer, or Revolut Business instead of a deposit-insured bank account.
Which country is cheaper for VAT registration?
Bulgaria has a higher mandatory VAT registration threshold (€51,130 from 1 January 2026) than Estonia (€40,000), so a very small business can stay unregistered longer in Bulgaria. Bulgaria’s threshold has changed twice in the past two years, though, so check current NRA guidance before relying on it.
Does a double tax treaty mean I pay zero tax overall?
No. A double tax treaty allocates taxing rights between two countries and relieves double taxation — it never produces zero tax on its own. Both Estonia’s distribution tax and Bulgaria’s dividend withholding tax are assessed at the corporate or withholding level, and your home country can still tax the dividend you personally receive.
Will my home country still tax my company’s profit even if it’s incorporated in Estonia or Bulgaria?
It can. If the company is actually managed day to day from your home country, place-of-effective-management, permanent-establishment, or controlled foreign company (CFC) rules there can pull the company’s profits into your home country’s tax net, regardless of the 0% or 10% sticker rate on the incorporation side.
Does Bulgaria’s euro adoption change anything for an Estonian company owner?
Only indirectly. It removes one old argument for preferring Estonia — avoiding Bulgarian lev volatility — since Bulgaria now invoices, reports, and sets thresholds in euros just like Estonia. It doesn’t change either country’s tax rates, VAT rules, or formation process.
Is the global minimum tax (Pillar Two) something a small business needs to worry about?
No. Pillar Two rules in both Estonia and Bulgaria only apply to corporate groups with consolidated annual turnover of at least €750 million. A small online business, agency, or SaaS company is far below that threshold and unaffected.
