---
title: "Freelancing and Affiliate Income in Spain: When Must You Register as Autónomo?"
date: 2026-09-28T08:27:22Z
modified: 2026-09-28T08:27:23Z
permalink: "https://abill.io/en/blog/autonomo-spain/"
type: post
status: publish
excerpt: Spain autónomo rules for freelance and recurring affiliate income, including RETA, tax registration and the Canary Islands.
wpid: 4177
categories:
  - For freelancers
translation_priority:
  - Optional
featured_image: "https://abill.io/app/uploads/2026/09/pexels-jibarofoto-14366478-scaled.jpeg"
author: admin
---

If you earn money from freelancing or affiliate links while living in Spain, you may have heard that you don’t need to register as self-employed (autónomo) until you earn more than the minimum wage. That’s a myth. Spain’s Social Security says you must register if you work for yourself on a regular basis, however much or little you earn.

This guide explains what “regular” means in practice, why affiliate income usually counts, how the rules work in the Canary Islands, and what an invoicing platform can and can’t do for you.

## Short answer

If you earn from freelance work or affiliate links on an ongoing basis, you most likely need to register as autónomo before you start, even if your income is small.

## You need to register in two places

Registering as autónomo actually means two separate registrations:

1. **With the tax agency (Agencia Tributaria).** You tell the tax agency what kind of work you do and which tax rules apply to you, including VAT (IVA), or IGIC in the Canary Islands. You do this with form [**modelo 036**](https://sede.agenciatributaria.gob.es/Sede/procedimientoini/G322.shtml). The simpler modelo 037 has been withdrawn, so older guides that mention it are out of date.
2. **With Social Security (RETA).** RETA is the Social Security scheme for self-employed people. You register before you start working and can apply up to 60 days in advance. If you’ve already started, you still need to register, but it counts as late.

## Is there a minimum income before you have to register?

No. Social Security’s official [registration page](https://portal.seg-social.gob.es/wps/portal/importass/importass/Categorias/Altas%2C%20bajas%20y%20modificaciones/Altas%20y%20afiliacion%20de%20trabajadores/Alta_trabajo_autonomo) says you must register no matter how much you earn.

You may read online that people earning less than the minimum wage are exempt. In July 2025, Spain’s Supreme Court confirmed that this isn’t the rule (ruling STS 941/2025). A low income is one thing that’s taken into account, but it doesn’t settle the question on its own. What matters is whether you work regularly.

**One exception:** retired people drawing a pension don’t need to register if their yearly profit from self-employment stays below the minimum wage. Profit means income minus business expenses.

## Why affiliate income usually counts as regular work

[Affiliate income](https://abill.io/en/blog/services-that-can-be-paid-for-via-abillio/) can feel passive, but it usually looks regular in the eyes of the authorities, especially if:

- your links or campaigns stay live for months
- commissions arrive every month
- you promote products to make money
- you work with several brands or platforms
- you keep creating content or growing an audience to earn from it

The more of these apply to you, the harder it is to argue that your activity is occasional.

## What about the Canary Islands?

RETA covers all of Spain, so living or working in the [Canary Islands](https://abill.io/en/blog/the-freelancer-guide-to-cross-border-vat-invoicing/) doesn’t exempt you from registering with Social Security.

What does change is sales tax. The Canary Islands are outside the EU VAT area, so they use their own tax, IGIC, instead of IVA. That affects how you invoice and which taxes you charge. If you work with clients in or outside the Canary Islands, check with an adviser how IGIC or IVA applies to your specific services.

## Where Abillio fits in

Registering as autónomo is your responsibility, and no platform can do it for you. Getting paid is where Abillio can help. Abillio lets independent professionals:

- send valid invoices to clients in Spain and abroad
- receive international payments
- do all this without setting up a company just to invoice

It can’t:

- make regular work count as occasional
- decide whether you need to register with RETA
- file your Spanish income tax (IRPF) or IVA/IGIC returns for you

**Before you take on regular freelance or affiliate work,** have a Spanish tax adviser (asesor) look at your situation. Don’t wait until your earnings pass a threshold that doesn’t exist. Once your registration is sorted, [create an Abillio account](https://app.abill.io/) to start invoicing.

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_This article is general information, not tax or legal advice. Rules change and every situation is different, so confirm your position with the relevant authority or a qualified adviser._