Registering as Self-Employed in Spain as a Foreigner 2026
NIE, digital certificate, Modelo 036, the 80 €/month flat rate and how to coordinate registration with your residence permit. Everything a foreigner needs to register as self-employed in 2026.
Updated: 1 July 2026.
Summary: If you hold an NIE with authorisation to work as self-employed, you can complete registration in about 30 minutes. In 2026 the flat rate of 80 €/month for the first 12 months is still in place. The correct order is: NIE → digital certificate → Tax Agency (Modelo 036) → Social Security (RETA). Modelo 037 was abolished on 3 February 2025.
1. What is the NIE and what is RETA
The NIE (Número de Identidad de Extranjero) is your personal tax and identification number as a foreign national in Spain. It appears on your TIE (residence card) or on an EU registration certificate. Everyone needs an NIE before registering as self-employed, but the NIE alone does not authorise self-employed work; your underlying residence status must allow it.
RETA (Régimen Especial de Trabajadores Autónomos) is the special Social Security scheme for the self-employed. Registering with RETA is what makes you a legal autónomo and gives you access to healthcare, pension contributions and sick pay, on different terms from employees. See the official Seguridad Social guide for self-employed workers.
2. Requirements before you start
| Requirement | Detail |
|---|---|
| NIE | With authorisation allowing self-employed work (TIE, EU registration certificate, or a residence permit with labour market access). |
| Digital certificate or Cl@ve PIN | Needed to file Modelo 036 online with the Agencia Tributaria. |
| Spanish bank account | To set up direct debit for your monthly Social Security contribution. |
| IAE activity code (epígrafe) | The business activity you will invoice under. |
If your current permit only allows employed work, or you are still on an arraigo (settlement) permit that does not yet cover self-employment, you need to change your authorisation first. Our sister firm, Extranjería Clara, handles this immigration side.
3. Registering with the Tax Agency: Modelo 036
Modelo 037, the simplified census declaration, was abolished on 3 February 2025 (Order HAC/1526/2024). Every census registration, change and deregistration is now filed with Modelo 036, which includes the simplified, guided version. Tick the ROI box if you will invoice EU clients. Choose your IAE activity code carefully: changing it later means filing another census declaration. If your NIE is very recent or your authorisation was just granted, the online system may not let you finish the filing, and you may need an in-person appointment; check this before starting the process. Official forms: Agencia Tributaria, census declarations 036/037.
4. Registering with Social Security (RETA)
Registration in the Social Security census must coincide with, or come before, your first day of self-employed activity. In practice, this means filing your RETA registration on the same day as your Tax Agency registration, or immediately after, with no later grace period. Registering late means you are treated as unregistered from day one and lose access to the flat-rate bonus, and a surcharge on your contribution may apply. It is filed online through SEDESS with a digital certificate. You must also choose a contribution bracket based on your expected net income, under the income-based contribution system introduced in 2023 and still in force in 2026. See the official Seguridad Social guide.
5. The 2026 flat rate (tarifa plana)
The headline flat rate for new self-employed registrations is 80 €/month for the first 12 months, applicable regardless of income. This can be extended for a further 12 months if your net earnings stay below the Spanish minimum wage (SMI). Because the Intergenerational Equity Mechanism (MEI) contribution is not covered by the bonus, your real monthly direct debit is around 88-89 €/month once MEI is added. To qualify, this generally needs to be your first registration in RETA, or you must have been off RETA for at least 2 years (3 years if you already used the flat rate before). Always confirm the exact figures for your case, since contribution rules are updated periodically. Official source: Seguridad Social, self-employed guide.
6. After you register
- Modelo 303 (VAT) — filed quarterly.
- Modelo 130 (income tax on account) — quarterly, unless you are under the objective estimation regime (módulos).
- Modelo 390 and Modelo 190 — annual summaries.
- Annual personal income tax return (Declaración de la Renta) the following year.
Common mistakes foreign residents make
- Registering before your NIE reflects the correct authorisation to work as self-employed.
- Choosing an IAE activity code that does not match what you actually invoice for.
- Forgetting to request a ROI (intra-EU VAT number) when invoicing EU clients; see our guide on invoicing clients in Latin America and the EU.
Coming to Spain on a self-employment settlement permit (arraigo)
Many clients arrive with an approved arraigo laboral por cuenta propia and need to register immediately to meet the conditions of their approved business plan. We offer a joint package with our sister firm: Arraigo + Self-Employment Package.
Our standard advisory fee for a one-off consultation on your registration is 75 € + VAT (90.75 €). Tell us your situation over WhatsApp and we will confirm timelines and a fixed price.
Frequently asked questions
What is the difference between the NIE and RETA registration?
The NIE is your tax ID number; RETA registration is what actually makes you a legal self-employed worker under Social Security. You need both, in the right order.
Can I register as self-employed with any type of residence permit?
No. Your permit must specifically allow self-employed work (cuenta propia). If it only covers employed work, you need to modify it first, usually with immigration support.
How much is the flat rate for autónomos in 2026?
80 €/month for the first 12 months, plus the non-bonused MEI contribution, bringing the real monthly payment to roughly 88-89 €. It can be extended a further 12 months if net income stays below the minimum wage.
Should I use Modelo 036 or 037?
Modelo 037 no longer exists: it was abolished on 3 February 2025. Every registration now goes through Modelo 036, and you tick the ROI box if you invoice EU clients.
When exactly must I register with RETA?
On the same day as your Tax Agency registration, or immediately after, and always before your first day of self-employed activity. There is no grace period.
What happens if I invoice EU clients without a ROI number?
You may face VAT compliance issues on intra-EU transactions; you should request the ROI as part of your Modelo 036 registration.