Kointax.ioKointax.io

Crypto Tax Blog

Practical guides, legal updates and strategies to correctly report your cryptocurrencies in Spain.

bitcoin
irpf
renta

How to Declare Bitcoin on the Spanish Tax Return 2025

Step-by-step practical guide to declare your Bitcoin gains and losses on the 2025 IRPF. Learn which boxes to fill out and how to calculate the correct amount.

Equipo declaracrypto15 Apr 2026· 8 min
dac8
directiva
hacienda

DAC8: the European directive that makes Hacienda know everything about your crypto

DAC8 is the directive that requires EU exchanges to report data to tax authorities. What it means for Spanish investors.

Equipo kointax18 Mar 2026· 5 min
errores
declaracion
hacienda

Top 10 mistakes when declaring crypto in Spain (and how to avoid them)

The most common errors Spanish crypto investors make in their declarations.

Equipo kointax7 Feb 2026· 6 min
rectificacion
declaracion
hacienda

How to amend an incorrect crypto declaration in Spain before Hacienda

If you declared crypto incorrectly in previous years, you can correct it.

Equipo kointax13 Dec 2025· 6 min
hacienda
inspeccion
cripto

How does Hacienda detect crypto? What you need to know about inspections

The AEAT has sophisticated mechanisms to detect undeclared cryptocurrencies.

Equipo kointax22 Aug 2025· 7 min
errores
declaracion
hacienda

The 7 most common mistakes when declaring crypto in Spain (and how to avoid them)

Analysis of the most frequent mistakes Spanish investors make when declaring cryptocurrencies.

Equipo kointax15 Jul 2025· 8 min
guia
declaracion
hacienda

Declaring crypto in Spain 2025: complete step-by-step guide for Hacienda

Everything you need to know to correctly declare your cryptocurrencies in Spain in 2025.

Equipo kointax1 Jul 2025· 10 min