Self-Employment in Spain (Autónomo)
Working as a freelancer or self-employed professional in Spain means registering as an autónomo — Spain’s regime for self-employed workers. This involves two separate registrations with two different government bodies, ongoing quarterly tax obligations, and Social Security contributions.
The good news: Spain’s Cuota Reducida (reduced contribution) makes the first year very affordable at just €80/month.
Two Registrations, Two Agencies
Becoming an autónomo requires registering with both of these agencies — they are separate and independent:
1. Agencia Tributaria (Tax Agency)
What: Your alta censal — registering your economic activity for tax purposes.
How: File Modelo 036 (full form) or Modelo 037 (simplified version for most freelancers) at the Agencia Tributaria, either online via Sede Electrónica (requires digital certificate) or in person with a cita previa.
You will declare:
- Your IAE code (Impuesto sobre Actividades Económicas) — the activity classification that describes your work. Common codes: 844 (legal services), 762 (programming/IT), 699 (other professional services), 861 (artists/designers).
- Your tax obligations: IVA (VAT) regime and IRPF (income tax) withholding method
- Your registered business address (can be your home)
2. Seguridad Social — RETA
What: Registering with the Régimen Especial de Trabajadores Autónomos (RETA) — the Social Security regime for self-employed workers.
How: Register online through Import@ss or at a TGSS (Tesorería General de la Seguridad Social) office.
You will select:
- Your contribution base (base de cotización) — the amount on which your Social Security contributions are calculated
- Your mutual insurance provider (mutua colaboradora) for work-related accident/illness coverage
Important
Order matters: Register with the Tax Agency (Modelo 036/037) first, then with Social Security (RETA). You need your tax registration number before Social Security will process your application. Both registrations should happen within the same 60-day window.
Cuota Reducida — €80/Month for New Autónomos
Spain’s headline incentive for new self-employed workers:
| Period | Monthly Contribution | Notes |
|---|---|---|
| Months 1-12 | €80/month | Flat rate regardless of income |
| Months 13-24 | €80/month | Extended if net income stays below SMI (€1,424.50/month in 2026) |
| After reduced period | €230-€530+/month | Based on real income brackets (see below) |
Note
The Cuota Reducida replaces the old “tarifa plana.” Since the 2023 reform, Spain moved to an income-based contribution system. The €80 flat rate for new autónomos is the entry point into this system. After the reduced period, your contributions adjust based on your actual net income.
Income-Based Contributions (After Reduced Period)
After your Cuota Reducida period ends, monthly contributions are based on your net income bracket (rendimientos netos):
| Net Monthly Income | 2026 Minimum Contribution |
|---|---|
| Up to €670 | ~€230/month |
| €670-€900 | ~€260/month |
| €900-€1,166 | ~€275/month |
| €1,166-€1,300 | ~€290/month |
| €1,300-€1,500 | ~€295/month |
| €1,500-€1,700 | ~€310/month |
| €1,700-€1,850 | ~€320/month |
| €1,850-€2,030 | ~€340/month |
| €2,030-€2,330 | ~€370/month |
| €2,330-€2,760 | ~€390/month |
| €2,760-€3,190 | ~€415/month |
| €3,190-€3,620 | ~€450/month |
| Above €3,620 | ~€530/month |
Figures are approximate and updated annually. Last verified: April 2026 (2026 IPREM: €600/month).
Quarterly Tax Obligations
As an autónomo, you file taxes quarterly, not just annually. Mark these deadlines:
Modelo 303 — IVA (VAT) Return
- What: Report the IVA you charged to clients minus the IVA you paid on business expenses
- Rate: Standard 21% IVA on most professional services. Some activities qualify for reduced rates (10% or 4%).
- Deadlines: January 20, April 20, July 20, October 20
- Annual summary: Modelo 390 (due January 30)
- Exemption: Some activities are IVA-exempt (education, healthcare, insurance). If exempt, you don’t file Modelo 303 but must still declare on Modelo 036.
Modelo 130 — IRPF (Income Tax Advance)
- What: Quarterly advance payment of your income tax (20% of net profit)
- Deadlines: Same as Modelo 303
- Calculation: (Revenue - Deductible expenses) × 20%, minus previous quarters’ payments
- Annual return: Modelo 100 (Declaración de la Renta, due April-June)
Important
Missing quarterly deadlines incurs automatic surcharges: 1% for each month late (first 12 months), plus 15% after 12 months, plus interest. Set calendar reminders for the 1st of January, April, July, and October.
Modelo 349 — Intra-Community Operations (If Applicable)
If you invoice clients in other EU countries (common for remote workers and freelancers), you must file Modelo 349 quarterly, reporting all intra-community transactions.
Invoicing Requirements
Spanish invoices (facturas) must include:
- Sequential numbering (e.g., 2026-001, 2026-002)
- Your full name and NIF (tax identification number)
- Client’s full name/company and NIF (or EU VAT number for intra-EU clients)
- Date of issue
- Description of services
- Tax base (base imponible)
- IVA rate and amount (if applicable)
- IRPF retention rate and amount (if applicable — typically 15%, or 7% for new autónomos in their first 3 years)
- Total amount
Note
IRPF retention on invoices: When invoicing Spanish companies or other autónomos, you typically apply a 15% IRPF retention (retención). This means the client withholds 15% and pays it to the tax agency on your behalf. New autónomos can apply a reduced 7% retention during their first 3 full calendar years. This does NOT apply when invoicing individuals or foreign clients.
Business Plan Validation (For Visa Purposes)
If you’re applying for a self-employed work authorization (autónomo visa), your business plan must be validated by an official body:
- UPTA (Unión de Profesionales y Trabajadores Autónomos) or ATA (Asociación de Trabajadores Autónomos) — the main trade unions for self-employed workers
- This is different from the ENISA report required for the Entrepreneur/Startup Visa, which is for innovative business projects
- A generic business plan without UPTA/ATA validation will be rejected for an autónomo visa application
The business plan should demonstrate:
- Professional qualifications relevant to the activity
- Market viability in your target location
- Financial projections showing sustainability
- Sufficient initial capital to launch and sustain the activity
Autónomo vs. Sociedad Limitada (SL)
| Factor | Autónomo | Sociedad Limitada (SL) |
|---|---|---|
| Setup cost | Free (just registration) | ~€600-€1,500 (notary, registry, minimum capital) |
| Minimum capital | None | €1 (since 2022 reform; €3,000 traditional) |
| Liability | Unlimited personal liability | Limited to company capital |
| Tax rate | Progressive IRPF (19-47%) | Corporate tax 25% (15% for first 2 years) |
| Social Security | Mandatory RETA contributions | Only if you’re the SL administrator |
| Best for | Freelancers earning under ~€40,000/year | Higher earners, those needing liability protection |
Note
Rule of thumb: If your net income is consistently above €40,000/year, the SL corporate tax rate (25%) becomes more favorable than progressive IRPF rates (which hit 37% at ~€35,200 and 45% at ~€60,000). Consult a gestor or tax advisor (asesor fiscal) for your specific situation.
Getting Help
- Gestor administrativo: A Spanish administrative agent who handles registrations, filings, and paperwork. Costs €50-€150/month for ongoing quarterly filing service. Highly recommended for your first year.
- Asesor fiscal: A tax advisor for more complex situations (SL setup, international income, Beckham Law interaction). Costs €100-€300/month.
- Punto de Atención al Emprendedor (PAE): Free government advisory offices for new entrepreneurs. Available in most cities.
Cross-References
- Tax Residency & Beckham Law — How autónomo income is taxed and whether the Beckham Law applies to you
- Social Security & SIP — Detailed guide to Social Security registration and healthcare access
- Entrepreneur & Startup Visa — If your business is innovative, the startup visa may be a better fit than the autónomo visa
- Forms Reference — Links to Modelo 036, 037, 130, 303, and other filing forms
Last updated: April 4, 2026