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Crypto Tax Blog

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

dao
gobernanza
tokens

DAO governance tokens in Spain: how UNI, AAVE, MKR and others are taxed

Governance tokens like UNI, AAVE and MKR have specific tax implications. Guide for Spain.

Equipo kointax11 Oct 2026· 4 min
fantom
ftm
sonic

Fantom/Sonic (FTM/S) in Spain: taxation of DeFi on the Fantom network

Fantom evolved to Sonic with new token S. Guide on FTM/Sonic taxation and DeFi in Spain.

Equipo kointax8 Oct 2026· 3 min
wrapped-tokens
wbtc
weth

Wrapped tokens (wBTC, wETH) in Spain: is wrapping a taxable event?

Wrapped tokens let you use BTC and ETH in DeFi. Guide on whether wrapping creates a taxable event in Spain.

Equipo kointax5 Oct 2026· 4 min
polygon
matic
defi

Polygon (MATIC/POL) in Spain: how DeFi operations on Polygon network are taxed

Polygon is one of the most used L2 networks for DeFi. Guide on MATIC/POL taxation and Polygon DeFi in Spain.

Equipo kointax2 Oct 2026· 4 min
opciones
defi
dopex

DeFi options (Dopex, Lyra, Hegic) in Spain: how they're taxed in IRPF

Decentralized options protocols generate complex tax events. Guide for Spanish users.

Equipo kointax18 Aug 2026· 4 min
avalanche
avax
defi

Avalanche (AVAX) and its DeFi ecosystem in Spain: taxes and how to declare

Avalanche has a growing DeFi ecosystem with Trader Joe, Benqi and more. Tax guide for Spanish users.

Equipo kointax31 Jul 2026· 4 min
metamask
wallets
defi

MetaMask and DeFi wallets in Spain: how to import all your transactions for Hacienda

MetaMask is the most popular DeFi wallet. Guide to importing all your EVM transactions for Spanish tax declaration.

Equipo kointax13 Jul 2026· 4 min
yield-farming
recompensas
defi

Yield farming in Spain: how rewards and LP tokens are taxed in IRPF

Yield farming generates continuous rewards in multiple tokens. Complete tax guide for Spanish DeFi users.

Equipo kointax4 Jul 2026· 5 min
aave
compound
prestamos

Aave and Compound in Spain: taxes on DeFi loans and collateral

Aave and Compound are the largest DeFi lending protocols. Complete tax guide for Spanish users.

Equipo kointax10 Jun 2026· 4 min
flash-loans
defi
impuestos

Flash loans in DeFi: do they have tax implications in Spain?

Flash loans are instant uncollateralized loans in DeFi. Guide on whether they have tax implications in Spain.

Equipo kointax29 May 2026· 4 min
uniswap
dex
impuestos

Uniswap in Spain: how to declare swaps and liquidity provision on the largest DEX

Uniswap is the largest DEX by volume. Complete tax guide for Spanish users: swaps, LPs, UNI rewards.

Equipo kointax5 May 2026· 4 min
impermanent-loss
defi
liquidity

Impermanent loss in DeFi in Spain: how to declare it and whether it's deductible

Impermanent loss is one of the most complex DeFi concepts. Guide on its tax treatment in Spain.

Equipo kointax26 Apr 2026· 5 min