FTX, Celsius bankrupt exchanges: deductible losses in Spain?
AEAT position: Loss deductible when "definitively produced" — unclear for ongoing bankruptcies.
Conservative approach: Wait for bankruptcy resolution, declare actual unrecovered amount.
Aggressive approach: Declare loss in collapse year (2022 for FTX) — risk of AEAT challenge.
FTX 2024 distributions (~118¢/$): Received distributions = partial loss recovery → must adjust previously declared loss.
Celsius: Different restructuring — users received NewCo tokens as compensation → new acquisition cost.
kointax classifies bankrupt exchange losses and calculates correct amounts.