Crypto Tax Blog
Practical guides, legal updates and strategies to correctly report your cryptocurrencies in Spain.
All
irpf 161
espana 149
impuestos 78
hacienda 55
defi 50
irpf-cripto 44
staking 33
kointax 28
comparativa 26
koinly 26
bitcoin 24
alternativa 24
fiscalidad 18
declaracion 16
trading 14
cripto 14
nft 12
aeat 11
tokens 11
blockpit 11
ethereum
layer 2
arbitrum
Ethereum Layer 2 (Arbitrum, Optimism, Base): specific taxation
Arbitrum, Optimism, Base and other Ethereum L2s offer cheaper transactions. Bridges, native tokens, ARB and OP airdrop, and their tax implications in Spain.
Equipo declaracrypto25 Apr 2026· 7 min
polygon
matic
layer 2
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.
Equipo declaracrypto25 Apr 2026· 7 min
ethereum
layer 2
privacidad
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.
Equipo declaracrypto25 Apr 2026· 6 min