🇪🇸 Company Formation in Spain: SL, NIF and Registration Guide
Company formation in Spain starts with a business decision: whether to operate as an individual autónomo or create a separate company. For founders who want a limited-liability corporate structure, the Sociedad de Responsabilidad Limitada (S.L., also called S.R.L.) is a common option. Its relatively accessible legal capital threshold does not remove the need for proper tax registration, accounting, local filings or a realistic funding plan.
This guide covers the main steps for international founders, including the difference between a personal NIE/NIF and a company NIF, how the online CIRCE route fits in, and what to plan after registration. Availability of each route depends on the founders, documents, digital access and activity.
This guide focuses on a new S.L. If an existing company might better match your timeline, compare the transfer and due-diligence route too; our ready-made company in Spain page explains that option.
Choose a structure before starting the paperwork
An autónomo is a natural person carrying on business in their own name. It can suit a solo activity with limited setup needs, but it is not a separate limited-liability company. An S.L. is a legal entity with its own assets, tax identity, accounting and governance. An S.A. is a more formal share company that may fit larger capital or investment needs. Do not pick a structure by name alone: compare liability, shareholder count, financing, management, social-security position and planned operations.
Personal NIE/NIF and company NIF are different
A foreign founder may need a personal Spanish identification number to act in tax, banking or registry matters. Depending on the person and their situation, this may involve an NIE (foreigner identification number) or a tax NIF assigned by the Tax Agency. The company has a separate legal-person NIF. The Spanish Tax Agency says legal entities must request a NIF and outlines the census filing and supporting documents; founders’ own numbers do not replace the company’s application.
Foreign corporate shareholders may also need documents proving their existence and authority, with translation and legalisation/apostille requirements depending on where the documents were issued. Confirm the exact package with the notary, registrar or tax adviser before signing.
How to form an S.L. in Spain
- Set the basics. Agree who the shareholders are, how ownership is divided, who will manage the company, where its registered office will be, and what the company will do. Check whether the business requires a licence or professional qualification.
- Reserve the company name. Apply for the relevant name certificate through the Central Mercantile Registry process. Allow for alternatives in case the first choice is unavailable, and check the company name separately from brand and trademark rights.
- Prepare the articles and funding. The articles should reflect the real governance and operating plan, not merely a generic template. Decide the subscribed capital, contributions, manager appointment and financial year. Spanish government guidance allows an S.L. from €1 in share capital, but while capital is below €3,000 special reserve and shareholder liability rules apply. A company should therefore choose capital that supports credible operations rather than treating the minimum as a recommended amount.
- Obtain identification and sign the deed. Shareholders and directors need the identification details and powers required for their roles. Incorporation is formalised in a public deed before a Spanish notary, subject to the selected route and circumstances.
- Register and complete tax startup filings. Submit the incorporation for registration in the competent provincial Mercantile Registry, obtain or finalise the company NIF and file the tax census commencement details before conducting the relevant business operations. The CIRCE system and Single Electronic Document can coordinate eligible procedures online, but not every situation will qualify for a fully digital route.
Tax, accounting and workforce setup
Before issuing invoices, decide the company’s tax census position, VAT/IVA obligations, activity classification, bookkeeping and invoice controls with a Spanish accountant. Corporate income tax treatment depends on the applicable tax period, the entity’s status and eligibility for special rates; regional and local obligations can also matter. Do not rely on an old online headline rate when budgeting a new company.
If the company hires staff or a working director, review social-security registration and payroll before work begins. Keep annual accounts, minutes and statutory books up to date, file tax returns on time, and report beneficial ownership and company changes when required. A foreign-owned company still has ongoing Spanish obligations even when customers or management are partly abroad.
What to plan before incorporating
Make a short operating plan covering where decisions will be made, where people will work, where contracts and customers sit, expected payment flows and the funding needed for the first year. Bank account opening is a separate onboarding decision; prepare beneficial-owner IDs, source-of-funds evidence, business contracts and a clear explanation of anticipated transactions. Incorporation by itself does not guarantee a bank account, a licence or tax residence in Spain.
For founders comparing Spain with Estonia, Eesti Consulting can explain the Estonian company side and cross-border considerations. We do not present this guide as a promise to provide Spanish incorporation or Spanish legal representation; Spain-specific filings should be confirmed with a local notary, gestor or tax adviser. You can contact our team or review our banking solutions overview for the Estonian and international banking topics we cover.
Frequently asked questions
Can a non-resident own a Spanish S.L.?
Foreign ownership is possible, but each shareholder and director must satisfy identification and documentation requirements. The practical steps vary with residence, nationality, legal-person shareholders and signing arrangements.
Is an NIE the same as the company NIF?
No. An NIE or personal NIF identifies an individual for relevant Spanish procedures. The company has a separate legal-person NIF for its tax and business dealings.
Can I create the company online?
CIRCE supports online processing for eligible company forms and procedures through the Single Electronic Document. Foreign participants should verify digital identity and signing eligibility before relying on this route.
Is €1 enough share capital?
It is the legal threshold described for an S.L., not a recommended budget. Below €3,000, the government describes additional reserve and shareholder-liability rules. Consider real startup expenses and working capital.
Official sources
- Spanish Government – starting a company and the CIRCE online route
- Spanish Government – company registration and notarial steps
- CIRCE / PAE – create an S.L. online
- Spanish Tax Agency – company NIF application
- Spanish Tax Agency – individual NIF information for foreign citizens
Information reviewed in October 2026. Company, tax and immigration-related requirements depend on individual circumstances and can change. Seek advice for your specific case before acting.
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