Crypto Tax Blog
Practical guides, legal updates and strategies to correctly report your cryptocurrencies in Spain.
Bitcoin and Ethereum ETFs: taxation of indirect investment in crypto
Bitcoin spot ETFs approved in the US and European ETPs allow investing in crypto without a wallet. Taxation of crypto ETFs in Spain, withholdings and advantages vs. direct possession.
Ethena (USDe) and sUSDe: the synthetic stablecoin and its taxation in Spain
Ethena offers a stablecoin backed by delta-hedging of ETH and BTC, with a sustainable yield via funding rates. Staking USDe in sUSDe generates returns with specific tax implications.
Ethereum and the transition to Proof of Stake: tax implications in Spain
Since the Ethereum Merge in 2022, validators receive rewards in ETH. Discover how these staking rewards are taxed in the Spanish personal income tax and what difference there is with PoW mining.
Decentralized Exchanges (DEX) vs. centralized (CEX): tax implications
Trading on DEX or CEX has different tax implications. DEXs do not report to the Treasury but your operations are still reportable. Discover the differences and how to keep track.
Electronic invoice and payments in cryptocurrencies: obligations in Spain 2025
The Create and Grow Law requires electronic billing. If you are self-employed or a company and charge in crypto, you must issue an invoice with the equivalent in euros. How to comply with Verifactu and the new regulations.
Filecoin and decentralized storage: taxation for storers and clients
Filecoin (FIL) and Arweave (AR) are decentralized storage networks. Income from storage providers, customer payments and the launch of the FVM for smart contracts.
Crypto venture capital funds (VC funds): taxation for the Spanish investor
Venture capital funds specialized in crypto (a16z, Paradigm, Spanish funds) allow exposure to the Web3 ecosystem without operating directly. How participations, distributions and returns are taxed in Spain.
Frax Finance: partially collateralized stablecoin and taxation in Spain
Frax is a partially algorithmic stablecoin backed by collateral (USDC) and FXS emissions. With frxETH, sfrxETH and veFXS, the Frax ecosystem creates multiple tax layers for the Spanish investor.
Crypto futures and derivatives in Spain: how to declare them
The taxation of futures contracts, options and other derivatives on cryptocurrencies in Spain. Classification, calculation and personal income tax boxes.
Complete guide for the Spanish crypto investor: everything you need to know
The definitive guide to crypto taxation for Spanish investors. Personal income tax, FIFO, information models, planning, errors and everything you need to declare correctly.
Crypto tax regularization guide: how to catch up with the Treasury
If you have not declared your cryptocurrencies for years, you still have time to regularize your situation. How voluntary regularization works, what penalties to expect and how to minimize the impact.
ICOs, IEOs and STOs: taxation of investment in crypto projects
ICOs (Initial Coin Offerings), IEOs and STOs are forms of blockchain financing. Discover how both the investment and the tokens received are taxed in Spain.


