What is an Autónomo?
Autónomo is the Spanish term for self-employed. If you work for yourself—freelancing, consulting, running a small business—you register as autónomo and pay your own social security contributions.
Who Needs to Register?
You must register as autónomo if you:
- Work for clients independently
- Invoice clients for services
- Run a sole-trader business
- Work regularly (habitually) for yourself
Requirements
To register as autónomo, you need:
- **NIE** (foreigner identification number)
- **Valid residency/work permit** or EU citizenship
- **Spanish address** (empadronamiento helps)
- **Spanish bank account** (for direct debits)
The Registration Process
Step 1: Register with Tax Agency (Hacienda)
Form: Modelo 036 or 037 (simplified version)You declare:
- Your activity (IAE code)
- Your tax regime
- Your business address
- Expected income bracket
Step 2: Register with Social Security
Form: TA.0521Register with Tesorería General de la Seguridad Social for:
- Autónomo contribution (cuota)
- Healthcare coverage
- Pension rights
Step 3: Choose Your IAE Code
IAE (Impuesto de Actividades Económicas) codes classify your activity. Common ones for expats:
- **Graphic design/web:** 844
- **Translation:** 774
- **Consulting:** 721
- **Teaching:** 824
- **Writing/journalism:** 773
- **IT services:** 845
- **Photography:** 973
Choose the most appropriate. You can have multiple codes.
Costs of Being Autónomo
Monthly Social Security (Cuota)
The famous "cuota" is a fixed monthly payment regardless of income:
2024/2025 rates:- New autónomos: Flat rate of ~€80/month for first 12 months
- Then €230/month (minimum, rising annually)
- Based on actual income from 2025 system
- Can be €300-500+ for higher earners
- First 12 months: ~€80/month
- Months 13-18: ~€230/month
- Months 19-24: ~€300/month
- Then full rate
Quarterly Taxes
Every quarter, autónomos must:
Modelo 303 (VAT/IVA)- If your services include VAT
- Declare VAT charged minus VAT paid
- Pay the difference to Hacienda
- Advance payment of income tax
- 20% of quarterly profit
- Credited against annual tax return
- If you have employees or contractors
- Withholding tax on their payments
Annual Declarations
- **Modelo 100:** Annual income tax return (Renta)
- **Modelo 390:** Annual VAT summary
- **Modelo 347:** Transactions over €3,005.06 with single client
VAT (IVA) for Autónomos
Standard rate: 21% Reduced rate: 10% (some services) Super-reduced: 4% (specific items) Invoicing within Spain: Add 21% IVA to your fees Invoicing to EU businesses: Reverse charge (no IVA, they self-assess) Invoicing outside EU: No IVARegister for VIES if invoicing EU businesses (Modelo 036).
Practical Tips
Getting a Gestoría
Most autónomos use a gestoría (administrative agency) to:
- Handle registration
- File quarterly/annual returns
- Keep accounts
- Advise on tax optimisation
Deductible Expenses
You can deduct business expenses:
- Office/coworking costs
- Equipment (computer, phone)
- Professional services
- Travel for work
- Professional development
- Portion of home expenses (if home office)
- Internet/phone (business proportion)
Banking
Get a separate business bank account. While not legally required, it:
- Simplifies accounting
- Looks professional
- Makes tax time easier
Many autónomos use digital banks (N26, Revolut) alongside traditional Spanish accounts.
Digital Certificate
Get a certificado digital from FNMT:
- Needed for most online dealings with Hacienda
- Free to obtain
- Get it early, process takes a few days
- Saves countless trips to government offices
Common Mistakes
1. Not registering before starting work: Register before you invoice
2. Missing quarterly deadlines: Fines for late filing
3. Not keeping receipts: Can't deduct without factura
4. Underestimating cuota: It's due even if you earn nothing
5. Ignoring retención: Some clients withhold 15% IRPF—account for this
6. Working under NLV: Non-lucrative visa prohibits self-employment
Is It Worth It?
Pros
- Legal and compliant
- Healthcare coverage included
- Pension contributions
- Can invoice Spanish clients
- Professional credibility
Cons
- Fixed monthly cost regardless of income
- Administrative burden
- Spanish bureaucracy