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 kointax·October 8, 2026·3 min read

Fantom/Sonic in Spain: taxation

FTM → S migration (Sonic): 1:1. Conservative: capital gain/loss at FTM market value at migration. Alternative: technical upgrade, no tax event.

Sonic staking: Rewards = capital income at market value (19-28%).

DeFi on Fantom/Sonic (SpookySwap, Beethoven X):

kointax supports Fantom/Sonic network.

declaracrypto.es — FIFO, LIFO, HIFO or WAC method. 80+ compatible exchanges. Excel + PDF report ready for your tax return.

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