Public demo — your own sandbox with fictional data, reset after 48 hours. Nothing here is real financial data. All data is encrypted at rest and in transit.

Guides

What you can claim Reporting requirements The modelos explained Tax rates Official links

Official portals

  • AEAT Sede Electrónica — the tax agency's portal: file modelos, check estado de tramitación, download datos fiscales, request certificates (estar al corriente).
  • AEAT — Tax certificates — including the "up to date with tax obligations" certificate clients sometimes request.
  • Import@ss (Seguridad Social) — your RETA status, contribution base, work-life report (vida laboral).
  • Cl@ve — the identity system used to log into AEAT/Seguridad Social (alongside digital certificates).
  • AEAT — Verifactu — official page for the certified invoicing-software regime.
  • DEHú — the single mailbox for official electronic notifications (check it; notifications count as delivered).
  • BOE — the official gazette where the laws themselves are published.

Access to AEAT/Seguridad Social services needs a digital certificate, Cl@ve, or (for some) reference numbers. Your accountant usually holds authorisation to act for you (apoderamiento).

These guides are general orientation, not tax advice. Rules change (rates on these pages were last verified 2026-07-20); your accountant's filing is authoritative.