How to Register as Autonomo

1️⃣ Step 1: Prepare Your Documents

Before registering, gather your identification (NIE/NIF), bank account, Solicitar el Número de la Seguridad Social.

• NIE/NIF identification
• Proof of address
• Bank account details
• Solicitar el Número de la Seguridad Social

2️⃣ Step 2: Obtain Social Security Number

Go to the link and click on Solicitar NUSS

Log in using your electronic certificate and fill in your details.

Sign and submit the application.

The number is assigned immediately — you can download the document.

3️⃣ Step 3: Register in Hacienda (Tax Office)

Register your activity in Hacienda using Modelo 036 form. Specify your CNAE code.

Select extended filling mode No.

4️⃣ Step 4: Página 1

Tick box 111. Start of activity.

Fill:

• Lugar - Place of completion.
• Fecha - Date.
• Firma en calidad de - Applicant submitting the form - Interesado
• Firmado D./D - First and last name

5️⃣ Step 5: Página 2A

Identificación.

• A[1] - S - SI. Por cumplir los requisitos del art. 9.1 LIRPF
• A[2] - ESPAÑA
• A[3] - Nationality
• A[3B] - Date of Spanish tax residency

Datos de teléfonos y direcciones electrónicas para recibir avisos de la AEAT, TEA y DGT

• A[28] - Prefijo país Country phone code if not Spain
• A[29] - A29 Tlfo. móvil para avisos Phone number Confirmación Tfno. Móvil Phone number
• A[3] - Nationality
• A[26] - Correo electrónico para avisos - Email
• Aplicacion Movil AEAT - If mobile notifications are required AEAT

Domicilio fiscal en España.

Select Buscar dirección, enter your postal code, click Buscar and select your street, then click Seleccionar.

Go to the cadastral reference search service.

Enter your address and find your cadastral reference number A[30]

Fill in remaining fields A[39] - 1

6️⃣ Step 6: Página 4A - IAE

Añadir registro →

→Buscador de actividades→ Search for your business activity →

→

→Indicate city and start date of activity

La actividad se desarrolla en un local determinado If you use business premises, indicate in this section.→Guardar

7️⃣ Step 7: Página 5. - IVA и ROI

VAT registration under general regime. ROI registration can be done later if no permanent address or no EU clients yet.

• A[500] - Si Territory IVA
• A[501] - No No exemptions IVA
• A[502] - Start of activity
• A[503] - Date.
• A[510] - General regime Общий режим IVA
• A[512] - Date.

ROI registration is required to issue 0% VAT invoices within the EU. Address verification may take time.→Guardar

• A[582] - Alta
• A[584] - Date.

8️⃣ Step 8: Página 6. - IRPF

• A[600] - Alta Quarterly IRPF 20% payment obligation IVA
• A[602] - Date.

• A[609] - Simplified direct estimation regime IVA
• A[650] - Date.

9️⃣ Step 9: Página 7. - Retenciones e ingresos a cuenta

• A[700] - Alta Tax agent obligations when paying salaries if you have employees IVA
• A[720] - Date.

🔟 Step 10. Sign and submit the application.

Download the confirmation file after submission Modelo 036

1️⃣1️⃣ Step 11: Register in Seguridad Social

Sign up in the social security system to start paying contributions and activate your autonomo status.