You have to be 18 to register as autónomo. The Estatuto del Trabajo Autónomo (Ley 20/2007) technically allows from 16, but Seguridad Social blocks the alta en RETA below 18 in practice, even for emancipated minors. The only working exception under 18 is joining a cooperative as a working member. Get this wrong and you spend weeks on filings that get rejected at the TGSS office.
Here's exactly how the rule works, when the exception applies, and what to do if you're not 18 yet.
The headline number is 18. Anything else needs a specific structure or a workaround.
The block is administrative, not legal in the abstract. The law (article 9 of Ley 20/2007) says minors of 16 or older can do autónomo work. The TGSS, the body that actually issues the alta en RETA, requires legal majority. Without alta en RETA, you can't legally invoice, can't get the Spanish health card through self-employment, and don't accrue pension rights.
That's the gap that catches people. Reading the law you think you can; trying the filing, you can't.
Three things only happen at 18:
A 17-year-old emancipated by court order can sign contracts and open a bank account, but the TGSS form still rejects them. This is where most aspiring teen autónomos get stuck.
Before booking a slot at TGSS, run these checks:
You're not stuck. The realistic paths:
There's no current proposal in the BOE pipeline to lower the autónomo minimum age. Periodic discussions about aligning ETA art. 9 with the TGSS practice surface every couple of years but haven't reached the legislative stage.
The cooperative path expanded under the 2022 Ley de Sociedades Cooperativas reform: cooperatives get streamlined registration, which makes the 16-17 cooperative route slightly more accessible than it was a decade ago.
If you're 17 today and planning to register on your 18th birthday, the framework above should still hold.
Marta, 17, designer. Wants to invoice freelance design work to UK clients. Emancipated by parental consent. Tries alta en RETA, refused. Solution: joins a small youth design cooperative with three friends; the cooperative invoices the client and pays her as a socio trabajador. On her 18th birthday she leaves the cooperative and registers as autónomo individually.
Lucas, 16, inherits a hardware shop. Father's death leaves him sole owner. The legal guardian appointed by the court runs operations. Lucas signs key documents through the guardian, accrues no RETA contributions. At 18, he takes over and files alta en RETA the same week.
Sofía, 18, just turned legal. Was preparing the alta during her last weeks at 17: NIE in order, digital certificate ready, Modelo 036 drafted, bank account open. Files Modelo 036 the morning of her birthday. RETA alta processed within 48 hours. She invoices her first client a week later.
Once you're 18 and ready to register, the standard autónomo flow applies. See the autónomo registration guide for the full alta process (Modelo 036/037, RETA alta within 60 days, Cl@ve PIN or digital certificate), and the deregistration guide for the eventual baja if your plans change.
For higher-risk businesses or partnerships, a Sociedad Limitada is the alternative structure, also gated at 18 for the director role.
Can a 16-year-old be autónomo?
Not in practice. The law allows autónomo work from 16, but Seguridad Social rejects RETA alta below 18. The realistic alternative at 16-17 is joining a cooperative as a working member.
Does emancipation help?
For some legal acts (contracts, bank accounts) yes. For RETA alta, no. The TGSS does not accept emancipation as a substitute for legal majority.
Can I issue legal invoices as a minor?
No. Invoicing requires alta en Hacienda and RETA, both gated at 18 outside the cooperative exception.
What about inherited businesses?
The minor becomes the legal owner. A guardian or legal representative manages operations until the minor turns 18.
Can a minor be a company director?
No. Director / administrator roles in Sociedades Limitadas and Sociedades Anónimas require full legal capacity at 18.
Is the cooperative path realistic?
Yes if a cooperative already exists or several minors set one up together. The cooperative itself files for the social security regime, the working member just enrols.
What's the rush to register on the day I turn 18?
None, unless a client is waiting. The deadline is 60 days from your first activity to register with Seguridad Social, so there's buffer.
renn handles the full autónomo registration at 18: digital certificate setup, Modelo 036, RETA alta, and the first quarterly returns. If you're under 18 and want a plan to be ready on day one, book a tax chat and we'll line up the documents and timing so the alta processes within 48 hours of your birthday.
