How to Register as Self-Employed (Autónomo) in Spain: A UK Expat Guide

Registering as self-employed (autónomo) in Spain is one of the most common administrative steps for UK nationals who move here and want to work for themselves, whether as freelancers, consultants, tradespeople, or remote workers with some Spanish clients. The system is more structured than UK self-employment and the social security costs are higher — but it is manageable once you understand the mechanics.

What Autónomo Status Means

Being autónomo in Spain means you are registered as a self-employed professional with both the Spanish tax authority (Agencia Tributaria, known as AEAT) and the Spanish social security system (Seguridad Social). You operate as an individual rather than through a company, billing clients and paying tax and social security on your earnings.

It is the equivalent of UK sole trader status, not a limited company. If you want a Spanish company structure (SL, equivalent to a limited company), that is a separate and more involved process.

Who Needs to Register as Autónomo

You need to register as autónomo if you are:

• Providing services to Spanish clients or employers as a freelancer or contractor
• Running a business or trade in Spain (shop, restaurant, consultancy, trade)
• Working remotely but providing services to Spanish companies above the 20% threshold (relevant for Digital Nomad Visa holders — your Spanish-source income cannot exceed 20% of total income under that visa without triggering full autónomo obligations)

You do not need to register as autónomo if:

• You are employed in Spain (your employer handles your social security)
• You are on the Digital Nomad Visa working exclusively for non-Spanish clients (you are not providing services in Spain)
• You are an NLV holder who does not work at all

The Two Registrations You Need

Registering as autónomo involves two separate steps.

1. Registro en Hacienda (Tax Registration)

You register your economic activity with the AEAT using form Modelo 036 or Modelo 037 (the simplified version). This registers your activity (actividad económica) under the CNAE activity code that describes your work, and sets you up for quarterly tax filings.

You can do this online via sede.agenciatributaria.gob.es with a Cl@ve PIN or digital certificate, or via a gestor.

2. Alta en el RETA (Social Security Registration)

The RETA (Régimen Especial de Trabajadores Autónomos) is the self-employed social security scheme. You register at your local Tesorería General de la Seguridad Social office, or online.

From the day you register, you begin paying monthly social security contributions. The contribution is based on your chosen base contributiva (contribution base) within a range linked to your income. Since 2023, Spain moved to an income-based contribution system, replacing the old flat-rate model.

Monthly social security contributions under the 2026 income-based system (approximate):

• Net income below €670/month: approximately €230 to €260/month
• Net income €670 to €1,700/month: approximately €260 to €350/month
• Net income €1,700 to €2,500/month: approximately €350 to €430/month
• Net income above €2,500/month: approximately €430 to €530/month and above

These are significant costs, particularly in the early months. The tarifa plana (flat rate starter discount) helps new registrants: currently €80 per month for the first 12 months, then a graduated increase.

The tarifa plana is available to those registering as autónomo for the first time or who have not been autónomo in the previous 2 years. If you qualify, applying for it immediately is important as it is not applied retrospectively.

Tax Filings as an Autónomo

Once registered, you file quarterly:

Modelo 130: Quarterly income tax payment on account (for most professionals)
Modelo 303: Quarterly VAT return (if your activity is subject to VAT — most professional services are)

And annually:
Modelo 100: Your full annual income tax return

If you have invoiced clients with VAT (IVA), you charge 21% on most professional services, collect it from clients, and pay it to Hacienda quarterly (less any IVA you have paid on business expenses). If your clients are all non-Spanish (as for most Digital Nomad Visa holders), IVA generally does not apply to those invoices under the reverse charge mechanism, but the rules depend on the type of service and client location.

A gestor is highly recommended for autónomo administration. The quarterly deadlines are rigid (20th of the month following the quarter end), the forms are not intuitive, and errors attract penalties. Most gestors charge €500 to €900 per year for full autónomo administration including all quarterly and annual filings.

What You Can Claim as Business Expenses

As an autónomo, you can deduct genuine business expenses from your taxable income. Common deductible expenses include:

• Office or workspace costs (including a proportion of home costs if working from home, subject to rules)
• Professional subscriptions and software
• Business travel and accommodation
• Professional development and training
• Equipment (computers, phones, tools of trade)
• Health insurance (since 2019, autónomos can deduct up to €500/year of their own health insurance premium, or up to €1,500 for those with disabilities)
• Social security contributions (fully deductible)

The home office deduction in Spain is more restrictive than many people expect. You can deduct a proportion of home costs (based on the percentage of floor area used exclusively for work) for utilities, but rent and mortgage interest deductions are limited. A gestor can advise on what is defensible for your specific situation.

The Digital Nomad Visa and Autónomo: The Key Interaction

If you are on the Digital Nomad Visa, your primary basis for being in Spain is working remotely for non-Spanish clients. You are permitted to have up to 20% of your income from Spanish sources without it affecting your DNV status.

Once Spanish-source income regularly exceeds 20%, you are expected to be operating under a different visa or permit framework. In practice, this does not mean you need to register autónomo on day one of taking a small Spanish client, but the 20% threshold should be monitored.

For DNV holders who do register as autónomo (even at the borderline level), the Beckham Law flat-rate tax regime may still apply depending on how your income is structured. This is a specific area where professional advice is worth having.

Practical Steps to Register

1. Ensure you have your NIE number (essential — you cannot register without it)
2. Decide on your CNAE activity code (a gestor can advise if you are unsure)
3. Register with Hacienda via Modelo 037 (gestor can do this, or online with Cl@ve)
4. Register with RETA at the Social Security office or online (apply for tarifa plana at the same time if eligible)
5. Open a Spanish bank account if you do not have one — direct debits for social security contributions require a Spanish account
6. Set up your quarterly filing schedule or hand it to a gestor

The whole process takes 1 to 3 days if your documentation is in order. The main delay is usually getting an appointment at the Social Security office in areas with high demand.

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Frequently Asked Questions

How much does it cost to be autónomo in Spain per month?
The main cost is social security contributions. With the tarifa plana for new registrants, €80/month for the first year. At normal rates, €230 to €530/month depending on your income level. Tax is additional, filed quarterly.

Can I be autónomo on a Non-Lucrative Visa?
No. The NLV explicitly prohibits working in Spain, including self-employment. Autónomo requires a different visa basis — typically a self-employment visa or the Digital Nomad Visa (for remote work within the 20% Spanish income limit).

Do I need to charge VAT as an autónomo in Spain?
Most professional services are subject to 21% IVA in Spain. If your clients are Spanish, you charge IVA and pay it quarterly to Hacienda. If clients are in other EU countries or the UK, different rules apply (generally reverse charge or zero rating). A gestor can confirm your specific position.

Can a gestor handle all my autónomo paperwork?
Yes, and this is the recommended approach for most people. Expect to pay €500 to €900 per year for a gestor to handle all registrations, quarterly filings, and annual tax return for a straightforward autónomo.

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*See also: What Is a Gestor and Do You Need One? | Spain Digital Nomad Visa Guide | Beckham Law Explained for UK Expats*