Crypto Tax Blog
Practical guides, legal updates and strategies to correctly report your cryptocurrencies in Spain.
Bitcoin mining at home with solar energy in Spain: how is it taxed?
Home Bitcoin mining with solar panels is growing in Spain. Guide on taxation of this activity.
Ethereum staking and withdrawals in Spain: how to declare ETH staking rewards
Ethereum staking has unique features after The Merge and withdrawal enablement. Complete tax guide.
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.
ZK-rollups (zkSync, Starknet): privacy and taxation in Spain
ZK-rollups provide privacy and scalability. zkSync Era, Starknet and their ecosystems. Tax treatment, the ZK airdrop and the particularities of ZK proofs.
Cryptocurrency lending: how interest is taxed in Spain
Lending cryptocurrencies on platforms such as Aave, Compound or Nexo generates interest. Discover how they are classified and taxed in Spanish personal income tax and what happens when you recover the funds.
Lido DAO (LDO): governance, advanced delegated staking and taxation in Spain
Lido Finance is the largest Ethereum liquid staking protocol. The LDO token gives governance power over key protocol decisions. How LDO holders, stETH staking and node operator elections are taxed.
Liquid Staking Tokens (stETH, rETH, cbETH): the new frontier of staking
Liquid staking tokens such as stETH (Lido), rETH (Rocket Pool), and cbETH (Coinbase) allow staking while maintaining liquidity. Complete tax treatment in Spain.
Maker/DAI and Sky Protocol: collateral vaults, stability fee and DSR in Spain
MakerDAO (now Sky Protocol) allows you to mint DAI leaving ETH or USDC as collateral. The stability fee, DSR and changes to USDS generate multiple tax events. Complete guide for Spanish taxpayers.
Maple Finance and DeFi institutional lending: how returns are taxed
Maple Finance offers lending pools to KYB-verified institutions, paying yields in USDC to depositors. A more regulated DeFi alternative with clear tax implications in Spain.
Matic/Polygon: Layer 2 of Ethereum and taxation in Spain
Polygon (MATIC/POL) is the most used Ethereum scaling solution. Discover how Polygon operations, POL staking, and DeFi projects in the ecosystem are taxed.
Marriages with a spouse abroad and crypto: taxation in Spain
When one of the spouses resides in Spain and the other resides abroad, the tax treatment of joint cryptocurrencies becomes complicated. Marital economic regime, Model 720 and double taxation agreements.
Cryptocurrency mining: how it is taxed in Spain 2025
Complete guide on the taxation of cryptocurrency mining in Spain. Discover when it is taxed as an economic activity, how to deduct expenses and what tax obligations you have.