Autonomo in Spain 2026: Complete Self-Employed Guide

An autonomo is a self-employed individual who carries out an economic activity in their own name, on a habitual basis, for profit, and outside an employment contract.

You generally MUST register as autonomo if:

• -You provide services or sell goods to clients on a regular basis
• -You run your own business as a sole trader
• -You are a freelancer invoicing Spanish or foreign clients while resident in Spain
• -You are a partner/administrator in certain companies (autonomo societario)

The key test is "habituality." A genuinely one-off, tiny activity may fall outside the obligation, but as soon as your activity is regular - even if income is modest - the safe and legal route is to register. The "you can earn below the SMI without registering" idea is a persistent myth: the law is based on habitual activity, not on an income floor.

Two registrations, always:

Both are mandatory. Registering with Hacienda but not Social Security (or vice versa) is a common and costly mistake.

Your first step is registering in the census of business owners and professionals (censo de empresarios, profesionales y retenedores) with the tax agency (AEAT).

How to do it:

- File Modelo 036 (the full version) or Modelo 037 (the simplified version) electronically via the AEAT Sede Electronica - You declare your activity using an IAE/CNAE code (epigrafe), your tax address, and which taxes apply to you (IVA, IRPF, retentions)

When:

- You must file before the effective start of your activity - i.e., before your first invoice or first taxable event

What you choose here matters:

• -Your IAE epigrafe determines whether your activity is "professional" or "business" and affects your invoicing and retention rules
• -Whether you charge IVA (most activities do; some, like certain training or healthcare, are exempt)
• -Your IRPF method: estimacion directa (real income minus expenses - the norm for most) or estimacion objetiva (modulos, for specific sectors)

Tip: If you are unsure of your epigrafe or whether your activity is exempt from IVA, a one-off consultation with a gestor is well worth it - mistakes here ripple into every quarterly filing.

Once you are in the Hacienda census, you enroll in the Special Regime for Self-Employed Workers (RETA) with the Seguridad Social.

How to do it:

- Register through the Import@ss portal (with Cl@ve or digital certificate) - The Hacienda census registration (036/037) must come first, then RETA

When:

- You can register up to 60 days before starting your activity - Your RETA registration must take effect on your start date at the latest - it cannot be backdated, so do not delay

What RETA gives you:

• -Healthcare coverage under the public system
• -Sick leave, maternity/paternity, and other benefits
• -Accrual toward a state pension
• -Coverage for work-related accidents and occupational illness

Requirements summary:

• -Be of legal working age
• -Have an NIE (foreigners) and, if non-EU, an authorization that allows self-employment (see the foreigners section)
• -Have your Hacienda census registration done first

After both registrations, you are fully set up to invoice clients and operate legally.

New autonomos can pay a heavily reduced monthly social security contribution - the tarifa plana.

How it works in 2026:

- 80 euros per month for the first 12 months, regardless of your income - A second 12 months at 80 euros/month is possible only if your expected net annual income stays below the SMI (16,576-17,094 euros for 2026, depending on the reference used). You must request this extension via Import@ss.

Who qualifies:

- You have not been registered in RETA in the previous 2 years (or 3 years if you previously used this same benefit) - You are not a collaborating family member (autonomo colaborador) - You have no outstanding debts with Social Security or Hacienda

Important caveat:

The headline figure is 80 euros. A small additional contribution (the MEI, the Intergenerational Equity Mechanism) may apply on top depending on your base, so the exact charge can be slightly higher. Always confirm the precise amount on Import@ss when you register.

After the flat rate ends:

Once your tarifa plana period finishes, you move to the ordinary system based on your real net income (see the next section). Plan for this jump - your monthly contribution will rise significantly.

Since 2023, autonomo contributions are based on your real net income (rendimientos netos). For 2026, the brackets are frozen at 2025 levels because no increase was agreed.

How your net income is calculated:

- Net income = your earnings minus deductible business expenses, minus an additional flat 7% generic-expense deduction (3% for company directors / autonomos societarios)

Approximate 2026 monthly contribution by net monthly income:

Important notes on these figures:

- These are the minimum contributions for each bracket; you may choose a higher base if you wish (useful for a bigger future pension). - The 2026 amounts are the 2025 figures carried forward, so treat them as approximate and confirm the exact cuota on the official Seguridad Social tables. - The MEI add-on rises to 0.9% of your base in 2026, slightly increasing the total. - You can change your bracket up to 6 times a year as your income changes. At year-end, Social Security reconciles what you paid against your actual income and refunds or charges the difference.

As an autonomo you self-assess your taxes. The two main ones are IVA (VAT) and IRPF (income tax), filed quarterly, plus annual summaries.

Quarterly filings:

- Modelo 303 (IVA): You charge IVA on your invoices (usually 21%), deduct the IVA on your business expenses, and pay the difference. - Modelo 130 (IRPF): A quarterly advance payment of income tax under estimacion directa (or Modelo 131 if you are on modulos). If 70%+ of your invoices already carry IRPF retention, you may be exempt from filing 130.

2026 quarterly deadlines:

(If you pay by direct debit, file about 5 days earlier.)

Annual filings:

- Modelo 390: Annual IVA summary, filed in January (informational, no payment) - Modelo 100: Your annual income tax return (declaracion de la renta), filed in the spring campaign (roughly April to June 2026 for 2025 income)

IRPF retention on your invoices:

- If you are a professional invoicing Spanish businesses, you apply a 15% IRPF retention on your invoices (the client pays it to Hacienda on your behalf) - New professional autonomos can apply a reduced 7% retention in the year they register and the following two years - Invoices to private individuals or to foreign clients generally carry no retention

Under estimacion directa you can deduct expenses linked to your activity, reducing both your IRPF and your reclaimable IVA. To be deductible, an expense must be related to the activity, properly invoiced in your name/NIF, and recorded in your books.

Commonly deductible:

• -Your RETA social security contributions
• -Gestor/accountant fees and professional insurance
• -Supplies, stock, raw materials, and merchandise
• -Rent for premises and professional services (lawyers, etc.)
• -Phone, internet, software, and professional subscriptions
• -Professional equipment (amortized over time if it costs more than ~300 euros)

Working from home:

If you work from home and declared it on your Modelo 036/037, you can deduct 30% of the proportional part of your home utilities (electricity, water, gas, internet) corresponding to the square meters you use for the activity.

Travel and meals (dietas):

• -Daily meal allowances are deductible within limits (around 26.67 euros/day in Spain without overnight stay, 53.34 euros/day with overnight), if paid electronically, in a different municipality, and properly justified.

Vehicles - be careful:

For IRPF, a car is fully deductible only for specific activities (transport, driving instructors, commercial reps, couriers, taxis). For mixed personal/professional use, IRPF is very restrictive (IVA generally allows 50%).

Golden rule: Keep every invoice (factura, not just a ticket), with your name and NIF, and record it. No valid invoice means no deduction - and no reclaimable IVA.

Whether you can register as autonomo depends on your nationality and immigration status.

EU / EEA / Swiss citizens:

• -Full freedom to establish as self-employed
• -You only need your NIE plus the two registrations (Hacienda + RETA)
• -No work authorization required

Non-EU citizens:

You need a residence/work authorization that specifically allows self-employment (trabajo por cuenta propia). The main routes are:

- Self-employment work visa / authorization (cuenta propia): Requires a viable business plan, proof of sufficient investment and funds, and any qualifications or licenses your activity needs. - Digital Nomad Visa (Ley 14/2013): For remote workers and freelancers serving mainly foreign clients (no more than ~20% of income from Spanish entities). It requires proving income of around 200% of the SMI - roughly 2,700-2,800 euros/month in 2026 - and grants residence plus work rights, renewable. Confirm the exact current threshold, as it is recalculated against the SMI. - Certain other permits (for example, after regularization, arraigo, or family reunification) also allow self-employment.

Key point: Immigration status and the autonomo registration are linked. You cannot legally register as autonomo without an underlying right to do self-employed work in Spain. If you are non-EU, sort out your immigration authorization first - see our Digital Nomad Visa and related guides.

NIE and digital ID: Every autonomo needs an NIE, and in practice a Cl@ve or digital certificate to file taxes and manage Social Security online. See our NIE and Cl@ve guides.