Bitcoin at all-time highs 2025: what Hacienda expects
If you sold BTC in 2024-2025: Declare capital gains. AEAT cross-references Models 172/173 with IRPF declarations.
If you didn't sell: No realized gain = no IRPF due. But still need Model 172 (foreign exchange balances) and Model 720 (if >€50,000 at foreign exchanges).
Partial sell + rebuy strategy: Sell generates capital gain (19-28%); rebuy establishes higher acquisition cost. 2-month rule doesn't apply to gains (only losses).
Tax rates on large BTC gains:
- Up to €6,000: 19%
- €6k-€50k: 21%
- €50k-€200k: 23%
- Over €200k: 28%
kointax calculates exact tax liability for current holdings, enabling sale planning.