Crypto Tax Blog

The 2025 Renta campaign brings important updates for crypto taxpayers. Updated guide.

The exchanges in Spain report your data to the Treasury with Forms 172 and 173. What they report, what you can do and how it affects you in your declaration.

DAC8 forces all crypto exchanges to automatically report to the European tax authorities from 2026. What it means for the Spanish taxpayer.

Foreign exchanges request the Spanish tax residency certificate for reduced withholding at source or exemption. Learn how to obtain it from the AEAT, deadlines, and why it benefits Spanish crypto investors.

Step-by-step guide to accessing the Spanish Tax Agency's Electronic Office and correctly declaring your cryptocurrencies. Learn which certificates you need, how the Cl@ve PIN works, and how to fill out the IRPF draft with your crypto transactions.

What documentation you must keep to justify your crypto operations to the AEAT, for how long, and in what format.

When the AEAT focuses on crypto investors, which signals trigger inspections, and how to legally protect yourself against a potential audit.

What Forms 172 and 173 from the AEAT are, who is required to file them, deadlines, and how to complete them correctly in 2025.

Why Koinly's FIFO can differ from what the Spanish AEAT requires and the impact on your tax return.

If you use Koinly and file taxes in Spain, learn how to export correctly and adapt the report to AEAT requirements.

The main problems Spanish users have with Koinly and how to solve them with a native alternative.