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Crypto Tax Blog

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

bug-bounty
recompensas
cripto

Crypto bug bounty rewards in Spain: how are they declared in IRPF?

Bug bounty programs pay in crypto. Guide on how to declare these rewards in Spain.

Equipo kointax23 Sept 2026· 3 min
bitcoin
reserve
empresa

Bitcoin as corporate reserve in Spain: tax implications under Corporate Tax

Companies like MicroStrategy hold BTC on balance sheet. How does Spain's Corporate Tax treat corporate Bitcoin?

Equipo kointax20 Sept 2026· 5 min
menores
menores-de-edad
cripto

Cryptocurrencies of minors in Spain: who declares and how

Minors who own crypto also have tax obligations. Guide on who declares and how in Spain.

Equipo kointax17 Sept 2026· 3 min
ens
ethereum
dominios

ENS (Ethereum Name Service) in Spain: are .eth domains assets with tax implications?

ENS domains (.eth) are NFTs with value. Guide on their tax implications in Spain.

Equipo kointax14 Sept 2026· 3 min
tokentax
kointax
comparativa

kointax vs TokenTax in Spain: is TokenTax suitable for Spanish users?

TokenTax is an American crypto tax platform. Comparison with kointax for Spanish users.

Equipo kointax11 Sept 2026· 3 min
renta-2025
novedades
aeat

Crypto in the 2025 Tax Return: all AEAT updates you need to know

The 2025 Renta campaign brings important updates for crypto taxpayers. Updated guide.

Equipo kointax8 Sept 2026· 5 min
margin-trading
apalancamiento
cripto

Crypto margin trading in Spain: how leveraged profits and losses are taxed

Margin trading allows leveraged operations. Complete tax guide in Spain.

Equipo kointax5 Sept 2026· 4 min
modelo-173
kointax
hacienda

Complete guide: how to file Model 173 with kointax step by step

Model 173 declares all crypto operations of the year. Step-by-step guide to generate and file it with kointax.

Equipo kointax2 Sept 2026· 5 min
modelo-172
kointax
hacienda

Complete guide: how to file Model 172 with kointax step by step

Model 172 is mandatory for those with crypto at exchanges. Step-by-step guide to generate and file it with kointax.

Equipo kointax30 Aug 2026· 5 min
arbitrum
optimism
base

Arbitrum, Optimism and Base (Ethereum L2) in Spain: taxes and how to declare

Ethereum L2 networks are increasingly popular. Tax guide for users on Arbitrum, Optimism and Base in Spain.

Equipo kointax27 Aug 2026· 4 min
stablecoin
usdc
usdt

Stablecoin farming in Spain: how USDC and USDT DeFi yields are taxed

Depositing USDC or USDT in DeFi protocols to earn interest generates income that must be declared. Complete guide.

Equipo kointax24 Aug 2026· 4 min
transferencias
wallets
propias

Transferring crypto between my own wallets in Spain: is it a taxable event?

Moving crypto between your own wallets or exchanges is a common doubt. Clear guide on whether it's taxable in Spain.

Equipo kointax21 Aug 2026· 3 min