Blog

Articles, guides and news about taxation for freelancers and SMEs

digitalización tickets
hacienda

Digitizing Receipts and Tickets: How It Works for Tax Purposes

Complete guide on digitizing receipts and tickets: how it works for tax purposes for freelancers and SMEs in Spain. Everything about digitalización tickets y ha

Equipo Asesorix3 Jan 2026· 5 min
criptomonedas
fiscalidad
hacienda

Cryptocurrency Taxation for Freelancers 2024

Complete guide on cryptocurrency taxation for freelancers 2024 for freelancers and SMEs in Spain. Everything about criptomonedas y fiscalidad: obligations, dedu

Equipo Asesorix4 Dec 2025· 5 min
multas
sanciones
hacienda

Fines and Penalties for Late Tax Form Filing

Complete guide on fines and penalties for late tax form filing for freelancers and SMEs in Spain. Everything about multas y sanciones: obligations, deductions a

Equipo Asesorix15 Sept 2025· 5 min
modelo 303
iva
hacienda

Form 303 VAT: How to Fill It In Step by Step

Complete guide on form 303 vat: how to fill it in step by step for freelancers and SMEs in Spain. Everything about modelo 303 y iva: obligations, deductions and

Equipo Asesorix12 Aug 2025· 5 min
justificación gastos
hacienda

How to Justify Expenses to the Tax Authority Without Issues

Complete guide on how to justify expenses to the tax authority without issues for freelancers and SMEs in Spain. Everything about justificación gastos y haciend

Equipo Asesorix27 May 2025· 5 min
archivo facturas
conservación
hacienda

How Long Should I Keep My Invoices?

Complete guide on how long should i keep my invoices? for freelancers and SMEs in Spain. Everything about archivo facturas y conservación: obligations, deductio

Equipo Asesorix14 May 2025· 5 min
alta autónomo
hacienda
seguridad social

How to Register as Self-Employed in Spain: Step by Step

Complete guide on how to register as self-employed in spain: step by step for freelancers and SMEs in Spain. Everything about alta autónomo y hacienda: obligati

Equipo Asesorix1 Mar 2025· 5 min
modelo 100
renta anual
hacienda

How to File Annual Income Tax as a Freelancer: Form 100

Complete guide on how to file annual income tax as a freelancer: form 100 for freelancers and SMEs in Spain. Everything about modelo 100 y renta anual: obligati

Equipo Asesorix24 Jan 2025· 5 min
factura sin iva
exención
hacienda

When Can I Issue an Invoice Without VAT?

Complete guide on when can i issue an invoice without vat? for freelancers and SMEs in Spain. Everything about factura sin iva y exención: obligations, deductio

Equipo Asesorix16 Dec 2024· 5 min
iva
errores
hacienda

10 Common Mistakes When Filing VAT as a Freelancer

Complete guide on 10 common mistakes when filing vat as a freelancer for freelancers and SMEs in Spain. Everything about iva y errores: obligations, deductions

Equipo Asesorix9 Dec 2024· 5 min
devolución iva
hacienda
modelo 303

VAT Refund from Tax Agency: When and How to Request It

Complete guide on vat refund from tax agency: when and how to request it for freelancers and SMEs in Spain. Everything about devolución iva y hacienda: obligati

Equipo Asesorix1 Dec 2024· 5 min