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Getting Started

Everything you need to know to start your journey as an autónomo in Spain.

How to install AutoFirma and use your digital certificate (Windows and Mac)How to become autónomo in SpainModelo 036: Register as autónomoModelo TA.0521: Registration Form for Social SecurityWhat you need to know about Digital Certificates in Spain

Tax Forms (Modelos)

Step-by-step guides for filling out Spanish tax forms correctly.

How to fill in Modelo 130How to fill in Modelo 303Modelo 100: Annual Personal Income Tax ReturnModelo 111: Withholding Tax on Professional ActivitiesModelo 115: Withholding Tax on Rent from Urban Properties

Being Autónomo

Tips and advice for managing your self-employed business in Spain.

Autónomo vs. SLEssential tax deductions with examplesHow to deduct expenses as autónomoSocial security contributions for autómomosWhat is Tarifa Plana and how can I apply it?

Invoicing

Learn how to create compliant invoices and understand Verifactu requirements.

How to choose IVA & IRPF rates for your invoicesWhat is Verifactu and how to comply?How to create your first invoice as autónomo in Spain (2026)Avoid duplicate invoices: set Stripe to proforma

Taxes

Understanding IVA, IRPF and other Spanish taxes.

Spain's IRPF Tax Bands 2026Understanding IVA in SpainTax calendar for self-employed in Spain 2026

International

Working with clients outside Spain and intra-community operations.

Understanding intra-community operationsHow to register in the ROI (Intra-Community Operators Registry)