OÜ, FIE, or Just an Entrepreneur Account? Choosing the Right Business Structure in Estonia

If you've recently started earning money in Estonia — or you're planning to — one of the first questions you'll run into is: do I actually need to register anything? And if so, what?

It sounds like a surprisingly common source of confusion, even for people who've been running businesses in other countries. Estonia's legal framework gives you more than one way to operate legitimately, and each option carries different tax treatment, liability exposure, and administrative overhead. Choosing the wrong one at the start isn't catastrophic — you can always restructure later — but it does create unnecessary headaches and occasionally costs money to fix.

This post walks through all three main options available to individuals and small business owners in Estonia: the entrepreneur account, the FIE (sole proprietorship), and the OÜ (private limited company). We'll look at how they compare, who each one suits, and — importantly — when it makes sense to move from one to the next.

Before We Get Into It: Why Structure Matters More Than You Think

People often treat business structure as a bureaucratic formality. It isn't. The structure you choose determines how your income is taxed, whether your personal savings are at risk if something goes wrong in the business, how banks and clients perceive you, and how much accounting work lands on your plate every month.

Get it right and it runs quietly in the background. Get it wrong and it becomes a recurring problem — unexpectedly high tax bills, difficulty opening a bank account, or personal liability for a business debt you thought was ring-fenced.

So, it's worth spending twenty minutes understanding the options properly.

Option 1: The Entrepreneur Account — The Simplest Starting Point

The entrepreneur account (ettevõtjakonto) isn't a business structure in the traditional sense. It's essentially a special bank account — currently only available through LHV Pank — that allows individuals to receive payment for goods or services and have taxes handled automatically.

Here's how it works: whenever money comes into your entrepreneur account, the bank automatically deducts 20% as a flat business income tax (which covers both income tax and social tax, and if the person is not contributing to the mandatory funded pension) and forwards it to the Estonian Tax and Customs Board (EMTA). The remaining 80% is yours immediately.

That's it. No quarterly filings, no accounting software, no annual reports. For someone just testing the waters with freelance work or a small side income, it's remarkably frictionless.

But it has hard limits. As of 2025, if the amounts received through your entrepreneur account exceed €40,000 in a calendar year, you are legally required to register as either a FIE or an OÜ and also register as a VAT payer. At that point, the entrepreneur account alone is no longer sufficient.

There's also a health insurance consideration worth knowing. To maintain health insurance coverage through the entrepreneur account, the social tax component of your monthly payments must meet the minimum threshold — in 2026, the minimum social tax liability is €292.38 per month (based on a monthly rate of €886). If your income is irregular or seasonal, this coverage can lapse, so it's worth keeping an eye on.

Option 2: The FIE — When You're Ready to Operate More Formally

A FIE (Füüsilisest Isikust Ettevõtja) is what most countries would call a sole proprietorship or self-employed status. You register through the e-Business Register — the process is digital and generally fast — and from that point, you're operating as a named individual entrepreneur.

The key thing to understand about a FIE is that you and your business are legally the same entity. There is no separation between your personal finances and your business finances in the eyes of the law. If your business owes money and can't pay, your personal assets — bank accounts, property, everything — are fair game for creditors.

That's not a technicality. It's a genuine risk that catches people off guard, particularly those coming from countries where limited liability is the default even for small businesses.

On the tax side, FIE income is taxed as personal income. You pay social tax at approximately 33% on your business income and income tax at 20% on profits above the tax-free threshold. There's no flat rate like the entrepreneur account — you're working within Estonia's standard personal income tax framework, which means you have more flexibility with deductions (legitimate business expenses reduce your taxable income), but also more complexity.

FIEs are also subject to the €40,000 VAT registration threshold. Cross that and you must register for VAT with EMTA and file monthly declarations.

Accounting for a FIE is simpler than for an OÜ. Below a certain revenue level, simplified accounting rules apply, and you don't have to produce a full annual report in the same way a company does. That said, proper record-keeping is still mandatory — income, expenses, invoices.

One practical note: if you're a non-resident or operating internationally, the FIE is generally not recommended. It ties your business activity directly to your personal identity in Estonia, creates complications for opening business bank accounts outside Estonia, and offers none of the credibility signals that an OÜ does with international clients and payment processors.

Option 3: The OÜ — The Structure Built for Growth

The OÜ (Osaühing) is Estonia's private limited company — equivalent to a UK Ltd, a German GmbH, or an American LLC. It is, by a wide margin, the most popular business structure in Estonia, particularly among non-residents and e-Residency holders.

The fundamental difference from a FIE is that the OÜ is a separate legal entity. It can own assets, enter into contracts, take on debt, and be taxed entirely in its own name. Your personal liability as a shareholder is limited to whatever you contributed as share capital — which, as of current regulations, can be as little as €0.01.

This matters enormously in practice. If the business runs into trouble, your personal bank account is not on the line. That peace of mind has real value, especially as a business grows and the contracts it signs become more significant.

Estonia's Unique Corporate Tax System

Estonia's corporate tax system is genuinely unusual — and worth understanding properly. Estonian companies pay 0% corporate tax on profits that are retained or reinvested in the business. Tax is only triggered when profits are distributed — as dividends, for example.

When you do distribute profits, the current rate (since January 2025) is 22% on the distributed amount. The previous reduced rate of 14% for regular dividends was abolished, so it's a flat 22% regardless of how frequently you pay dividends.

What this means practically is that if you're in a growth phase and reinvesting your revenue back into the business — on marketing, equipment, hiring, whatever — you pay zero corporate tax during that period. You only pay when money leaves the company and goes into your pocket. For founders who are building something, this is an exceptionally powerful position to be in.

Annual Compliance for an OÜ

In practice, that means staying on top of a handful of recurring obligations each year:

• Maintain proper accounting records in accordance with Estonian accounting standards
• File an annual report with the e-Business Register within six months of the end of your financial year
• File TSD declarations (payroll and fringe benefits) if you have employees or board members receiving remuneration
• File VAT declarations monthly if your turnover exceeds €40,000 (the current standard VAT rate is 24%)
• Ensure your registered address in Estonia is maintained and that official correspondence reaches the company

This is more work than a FIE, and it's certainly more than the entrepreneur account. For most growing businesses, the right answer is to work with an accountant who handles this on an ongoing basis — which frees you to focus on actually running the business.

OÜ and International Credibility

Something that tends to get overlooked here: an OÜ is an EU company. That designation opens doors. Stripe, PayPal, Shopify Payments, and most major payment processors work smoothly with Estonian OÜs. Clients in other European countries recognize the structure. Banks — while sometimes still challenging — treat you as a business rather than an individual.

For anyone operating across borders, selling to international clients, or running an e-commerce business, the OÜ isn't just a legal choice — it's a commercial one.

Comparing All Three at a Glance

How This Usually Plays Out in Practice

In practice, many business owners move through these structures over time rather than jumping straight to the most complex option.

Someone might start earning freelance income as a translator or designer, open an entrepreneur account to keep things simple, and run that way for a year or two while the income is modest.

As their client base grows and their revenue approaches €40,000, the math changes — and so does the legal requirement. At that point, they'd typically register as a FIE if they're a resident running a straightforward solo operation, or form an OÜ if they're thinking bigger, have non-Estonian clients, or simply want the liability protection.

The transition from entrepreneur account to OÜ, or from FIE to OÜ, is entirely possible and relatively straightforward. But doing it reactively — under time pressure or because the Tax Board has noticed — is far less comfortable than planning it ahead of time.

Which One Is Right for You?

Honestly, it depends — and that answer isn't a cop-out. The right structure for one person can be entirely wrong for another, even when their businesses look similar on the surface.

What makes this decision harder than it appears is that the variables don't operate independently. Your residency affects your tax obligations. Your revenue trajectory affects when you'll hit the VAT threshold. Whether you have partners or employees changes what makes administrative sense. The nature of your work affects how clients and banks perceive your structure. Your appetite for personal liability changes the risk calculation entirely. Pull on any one of these threads and it affects the others.

The comparison table and the examples in this post give you a solid grasp of the landscape. But mapping your specific situation onto that landscape — and making sure you're not setting yourself up for a problem six months from now — is a different exercise. It's one that's worth doing properly rather than guessing at.

If you're still weighing the options or you've read this and realized your current setup might not be the right fit, that's a conversation worth having before you make any decisions.

At Tashnain Consulting, we work with OÜs, FIEs, and individual entrepreneurs across Estonia and Europe. If you'd like to talk through your specific situation — including whether you're in the right structure right now — book a free consultation with our team. We're happy to have a straightforward conversation before you make any decisions.