A foreign founder without a NIE is a founder who cannot sign. Who exactly needs one, and when?

The NIE is the personal identification number Spain gives to foreigners. The current foreigners regulation, Real Decreto 1155/2024, in force since 20 May 2025, covers it in article 205. It says the number goes to people who have economic, professional or social ties with Spain, among others. A founder or investor fits that description.

Shareholders

An individual who will own shares in a Spanish SL needs an identification number for the deed and for tax purposes. For a foreign individual that number is the NIE. A foreign company that will be a shareholder does not get a NIE. It needs a tax number for entities, and the tax agency has specific procedures for non-resident entities.

Directors

Notaries and registrars expect each administrator to be identified by a number in the deed. In practice that means a NIE for a foreign individual. Rules on this are applied by the notary in charge of your deed, so ask them which identification they will require before you sign.

How you obtain it

From inside Spain you apply to the national police, directly or through an immigration office or police station. From abroad, you normally apply at the Spanish consulate for your place of residence, using form EX-15. The form asks you to state the reason, such as economic or professional, and the consulate asks for papers that prove it. A company incorporation project, or a letter from the notary or bank, are typical examples. Attendance is in person, although an accredited representative can apply for you. Practice varies by consulate, so read your consulate's page before booking.

One more route exists. The Startup Law includes a procedure that lets non-resident foreign investors obtain a tax number without first holding a NIE. It applies only to that context, so do not count on it for an ordinary company.

What a NIE does not do

A NIE identifies you. It does not give you residence, and it does not give you permission to work in Spain. A consular NIE is valid for dealing with Spanish authorities, not for proving you live here. If you plan to move and work in the company, that is a separate immigration question.

Picture two co-founders, one in Lisbon and one in Singapore, with a notary appointment already booked. The Lisbon founder has a number. The Singapore founder is still waiting for a consulate slot. The deed cannot be signed as planned, unless an attorney with a valid power signs for the missing founder. Either way you have lost time you could have saved by applying first.

Apply for the number before you book anything else.

This article reflects the position at its publication date. Rules change, so check them against your own case before acting.

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