In Estonia, the minimum share capital requirement depends on the type of company you are establishing:

1. Private Limited Company (OÜ - Osaühing):
   • The minimum share capital requirement is €2,500.
   • However, there is a possibility to register a private limited company without the immediate contribution of share capital if the founders are private individuals (not legal entities) and the total share capital does not exceed €25,000. In such cases, the share capital must be paid in later, usually when the company starts distributing profits or making other financial transactions that require it.
2. Public Limited Company (AS - Aktsiaselts):
   • The minimum share capital requirement is €25,000.
   • This type of company is more suitable for larger businesses or those that plan to be publicly traded.

It’s important to note that while the initial registration of a Private Limited Company (OÜ) can be done without paying the share capital upfront (under specific conditions), it must be paid before any dividends are distributed or other financial commitments requiring capital are undertaken.

Steps to Register a Private Limited Company (OÜ) in Estonia:

1. Choose a Name: Ensure your company name is unique and meets the Estonian Business Register’s requirements.
2. Prepare the Documents: Draft the articles of association and other necessary documentation.
3. Register Online or via Notary: You can register your company online through the Estonian e-Business Register if you have an Estonian e-Residency card or by visiting a notary.
4. Open a Business Account: If required, open a bank account to deposit the share capital.
5. Submit the Application: Complete and submit your application along with the required documents and registration fee.
6. Receive Confirmation: Once approved, you will receive a confirmation of your company’s registration.

For more detailed and updated information, you should refer to the Estonian Business Register or consult with a legal professional in Estonia.