Employment
Becoming autónomo in Spain in 2026: steps and fees
How to register as self-employed (autónomo) in Spain in 2026: tax and Social Security steps, monthly contributions, the €80 flat rate and quarterly returns.
Updated: October 2026
Want to freelance, open a small shop or offer a service in Spain on your own account? Then you will almost certainly need to register as autónomo (self-employed). This guide walks you through the registration steps with the tax office and Social Security, explains how the 2026 monthly contributions work, and lists the quarterly paperwork you will face once you are up and running.
Not sure yet whether to work as a sole trader or set up a limited company? Read our comparison autónomo or SL: which business structure suits you first, then come back here for the registration steps.
Before you start: what you need in place
Registering as autónomo is a two-part process – one registration with the tax agency (Agencia Tributaria) and one with Social Security. Before you can do either, a few basics must be sorted:
- NIE or TIE: your foreigner identity number. EU citizens need their registration certificate; non-EU citizens need a residence permit that allows self-employed work. See our guides to becoming a legal resident and work visas and permits.
- Social Security number: if you have never worked in Spain, you will need one (número de afiliación). It can usually be requested online through the Import@ss portal.
- Digital certificate or Cl@ve: almost every step is done online. A digital certificate (certificado digital) or Cl@ve PIN makes life far easier.
- Spanish bank account: Social Security collects your monthly contribution by direct debit. See how to open a bank account in Spain.
Step by step: how to register as autónomo
- Register with the tax agency (modelo 036). You file the census declaration on form 036, stating your start date, the activity code (epígrafe IAE) that matches what you do, your fiscal address and which VAT and income tax regimes apply. Since February 2025 the simplified form 037 no longer exists, so everyone uses 036. For simple cases the Agencia Tributaria offers a guided online assistant called Censos WEB.
- Register with Social Security (RETA). Through Import@ss you join the special scheme for self-employed workers (Régimen Especial de Trabajadores Autónomos). You choose your contribution base according to the net income you expect, select a mutual insurer (mutua) for sick leave and work accidents, and give your bank details.
- Ask for the flat rate at the same time. If you qualify for the tarifa plana (see below), request it when you register in RETA. The Social Security guide says it can also be requested within 30 days of registering.
- Check local licences. If you open premises (a shop, café or workshop), the town hall usually needs a licence or a responsible declaration (declaración responsable) before you open. Purely online or home-based work rarely needs one, but ask your ayuntamiento.
Timing matters. According to Social Security, you must register on the day you start your activity or up to 60 days before. The tax and Social Security start dates should match. Registering late means paying contributions from the start of the activity, possibly with a surcharge – and you lose the flat rate for that period.
Free help: a PAE office (Punto de Atención al Emprendimiento) can handle both registrations for you at no cost. Many people also use a gestor for the first year – see abogado, gestor or notario: who does what.
How much you pay to Social Security in 2026
Since 2023, autónomos pay according to their expected net income (rendimientos netos). There are 15 brackets: three in a reduced table for low earners and twelve in the general table. For 2026 the government kept the bracket table at the 2025 levels (Orden PJC/297/2026). The only increase is the intergenerational equity surcharge (MEI), which rose to 0.9%.
| Expected net income per month | Minimum contribution base (2026) |
|---|---|
| Up to €670 | €653.59 |
| €670 – €900 | €718.95 |
| €900 – €1,166.70 | €849.67 |
| €1,166.70 – €1,300 | €950.98 |
| €1,700 – €1,850 | €1,143.79 |
| €2,330 – €2,760 | €1,356.21 |
| €4,050 – €6,000 | €1,732.03 |
| Over €6,000 | €1,928.10 |
Your monthly payment is a percentage of the base you choose – a little over 31% in total once common contingencies, professional contingencies, cessation of activity, training and the MEI are added. In practice that means roughly €200 a month in the lowest bracket and close to €600 a month at the minimum base of the top bracket. The table above shows selected brackets; Social Security publishes the full list.
Adjusting your base and the annual regularisation
You can change your contribution base up to six times a year if your income changes. After the tax year closes, Social Security compares your real net income (from the tax agency’s data) with the bracket you chose. If you paid too little you receive a bill for the difference; if you paid too much you get a refund. Choosing a realistic bracket from the start avoids unpleasant surprises.
The tarifa plana: €80 a month for new autónomos
New autónomos can pay a reduced flat fee of €80 a month for the first 12 months (slightly more once the MEI is added). It can be extended for a further 12 months if your expected net income in that second year stays below the minimum wage (SMI). Key conditions:
- You must not have been registered as autónomo in the previous two years (three years if you already used a flat rate before).
- Family collaborators (autónomos colaboradores) are excluded.
- Longer periods apply to people with a disability of at least 33% and to victims of gender or terrorist violence.
- If you get the extension and your income turns out to be at or above the SMI, Social Security can claim back the difference.
Several regions add their own “cuota cero” grants that refund the flat fee in the first year or two. Programmes, deadlines and conditions vary, so check your regional government’s employment or business department before you register.
Your tax obligations once registered
Social Security is only half of it. As autónomo you also deal with VAT and income tax returns. The usual rhythm for most freelancers and small businesses is:
- Modelo 303 (quarterly): VAT you charged minus VAT you paid on business costs.
- Modelo 130 (quarterly): an income tax payment on account, generally 20% of your net profit so far in the year. Professionals who have tax withheld on most of their invoices may be exempt.
- Modelo 390 (annual): VAT summary for the year.
- Annual income tax return (renta): your business profit is taxed together with any other income.
Quarterly returns are normally due in the first 20 days of April, July and October, and by 30 January for the fourth quarter. Professionals invoicing Spanish businesses usually apply a 15% income tax withholding (retención) on their invoices, reduced to 7% in the year they start and the two following years. Keep all invoices and receipts, and be aware that new invoicing software rules (Verifactu) are due to apply to autónomos from mid-2027. For the bigger picture, see understanding the tax system in Spain.
What it costs to start: a quick summary
- Registration itself: filing form 036 and joining RETA is free.
- Social Security: €80 a month (plus MEI) with the flat rate, otherwise from around €200 a month depending on income.
- Gestor (optional): fees vary by region and workload; ask for a fixed monthly quote that includes quarterly returns.
- Licences and premises: only if you open a physical location; fees depend on the town hall.
Useful links
- Social Security: practical guide for self-employed workers (Import@ss)
- Social Security: the income-based contribution system
- Agencia Tributaria: modelo 036 census declaration
- Autónomo or SL: choosing your business structure
- Understanding the tax system in Spain
FAQ: becoming autónomo
Can I register as autónomo on my own without a gestor?
Yes. Both registrations can be done online with a digital certificate or Cl@ve, or for free at a PAE office. Many newcomers still use a gestor for the quarterly returns, especially in the first year.
Do I have to register if I only earn a little?
In general, anyone carrying out a regular economic activity on their own account must register, and the lowest bracket exists precisely for low earners. Occasional one-off income is assessed case by case, so ask a gestor before you start invoicing.
Can I be employed and autónomo at the same time?
Yes, this is called pluriactividad. You pay into both schemes, and Social Security may refund part of your contributions if the combined amount exceeds a yearly limit.
What happens if my income ends up higher than my bracket?
After the year ends, Social Security checks your real income and sends a bill for the difference. You can avoid this by changing your base during the year – up to six times.
Disclaimer: This article is general information only and is not legal or tax advice. Contribution rates, deadlines and regional grants can change – always check with Social Security, the Agencia Tributaria or a qualified gestor before you act.
