How to Register as a Freelancer in Spain 2026: Step-by-Step Guide
Everything you need to know to register with tax authorities and Social Security in 2026. Requirements, deadlines, and money-saving tips.
Registering as a Freelancer in 2026: Easier Than You Think
The registration process for freelancers in Spain has been almost entirely digitized in 2026. Here we explain the critical steps to get started on the right foot.
1. Form 036 or 037
This is the first step with the Tax Agency (Hacienda). You must choose your IAE (Economic Activities Tax) code correctly to avoid problems with future expense deductions.
2. Registration in RETA
You have 60 days before starting your activity to apply for Social Security registration. Remember to check if you are eligible for the Flat Rate (Tarifa Plana), which remains a great help for new entrepreneurs in 2026.
- Digital Certificate is mandatory.
- Bank account for direct debits.
- Invoicing software compatible with VeriFactu (like Trybiut).
Joaquín Mondéjar
Founder & CEO at Trybiut
Expert in financial management and tax optimization for freelancers and SMEs. Helping autónomos save time and money through AI-powered tools.