How to file Model 173 with kointax: step by step
Purpose: Informational declaration of all crypto operations during the fiscal year. Complements Model 172 (balances).
Who must file: Individuals/companies that made crypto operations exceeding established thresholds.
What it includes: Buy/sell operations, amount in euros, crypto type, platform used.
Steps with kointax:
- Connect all exchanges and wallets
- Review and verify transaction classifications
- kointax: Reports → Model 173 → Select year → Generate
- Download compatible file
- Present at AEAT Sede Electrónica (digital certificate or Cl@ve PIN)
Important: Model 173 is informational. AEAT cross-references with IRPF. Discrepancies = audit risk. Must file both separately.