Estonia OÜ for a Crypto Business: Company Formation Explained

Two steps that founders treat as one

“Set up an Estonian crypto company” sounds like a single task. It is two — and keeping them separate is the first thing a founder needs to get right.

Step one is forming the OÜ — the Estonian private limited company. It is fast, inexpensive, and can be done remotely. Step two is the MiCA CASP authorisation — the licence that actually permits the firm to provide crypto-asset services. It is slow, substance-heavy, and carries real capital requirements.

The OÜ is the easy part. Treating it as the whole job is the planning error that derails crypto projects.

What an OÜ actually is

An OÜ — osaühing — is a private limited company under the Estonian Commercial Code. It is the standard corporate vehicle in Estonia, used by everything from one-person consultancies to funded startups. For an EU-facing crypto founder, it is the natural entity to hold the business.

Two features make it attractive:

• Minimum share capital of €0.01. Since 1 February 2023, Estonia abolished the prior €2,500 minimum share-capital requirement. An OÜ can now be formed with effectively no capital — most founders set €1, €10, or €100.
• Remote formation via e-Residency. Estonia’s e-Residency programme lets a non-resident form and administer an OÜ entirely online. The e-Residency card itself takes some weeks to issue — background checks and delivery — but once it is in hand, the company registration through the e-Business Register is quick.

The OÜ also sits inside Estonia’s distinctive corporate-tax regime: retained and reinvested profits are not taxed. Corporate tax triggers only when profit is distributed as dividends. For a reinvesting, growth-stage business that is a genuine cash-flow advantage — though distributed profit is taxed, so it is not a 0%-forever regime.

What the OÜ does not give you

Here is the part that matters most. Forming the OÜ gives you a legal entity. It does not give you:

• Authorisation to provide crypto-asset services
• Any MiCA CASP licence
• Any reduction in the licensing capital, substance, or governance requirements

Providing crypto-asset services in or from Estonia — exchange, custody, transfer, brokerage — requires a MiCA CASP authorisation from the Estonian Financial Supervision Authority. That is a separate process with its own demands: prudential capital to the Annex IV floor, a suitable management body, local substance, an MLRO, an AML/CFT framework, ICT-resilience documentation. The OÜ is the vehicle the licence is granted to — not a substitute for the licence.

The capital point, made plainly

Requirement	Figure	What it is
OÜ share capital	€0.01 minimum	Company formation — the corporate shell
MiCA CASP Class 1	€50,000	Licensing — prudential capital floor
MiCA CASP Class 2	€125,000	Licensing — adds custody and exchange
MiCA CASP Class 3	€150,000	Licensing — adds operating a trading platform

The €0.01 and the €50,000-€150,000 are not alternatives — they are two different requirements at two different stages. The cheap OÜ formation does not make the licence cheap. For how the licence capital works, see MiCA prudential capital explained.

Where the OÜ fits in the bigger plan

For an EU crypto project routed through Estonia, the sequence is:

1. Form the OÜ — the corporate entity, fast and remote
2. Build the substance — resident director, registered office, genuine local operations the FSA will expect for a licensed CASP
3. Prepare and file the CASP application — capital, governance, AML, ICT, the full MiCA file
4. Receive authorisation — and only then provide crypto-asset services

The OÜ is step one. The Estonian FSA CASP practitioner guide and the Estonia jurisdiction profile cover steps two to four — the part that is the actual work. For the full picture of how company formation, licensing, and jurisdiction fit together, see the crypto licensing pillar guide.

Working with counsel on an Estonian setup

The diagnostic for counsel: ask them to scope the whole path — OÜ formation, substance build, and the CASP authorisation — as one project with one timeline and one budget. Counsel that quotes only for the OÜ incorporation has scoped the easy 5% and left the founder to discover the other 95%. The firms in our index with documented Estonian experience are listed below.