AEAT explained in English

AEAT is Spain's tax office. Here's what it is and why it matters for your business.

What is AEAT?

AEAT stands for Agencia Estatal de Administración Tributaria — Spain's national tax authority. It's the equivalent of HMRC in the UK, the IRS in the US, or Revenue in Ireland.

AEAT collects taxes, processes tax returns, audits businesses, and enforces Spain's tax laws. If you run a business in Spain — as an autónomo or through a company — you'll interact with AEAT regularly through your tax returns.

How does AEAT affect my invoicing?

AEAT requires businesses to keep accurate, ordered invoice records. Under the new Veri*Factu rules coming into force in 2027, invoicing software must create tamper-proof records in a format AEAT can verify.

BillBee prepares your invoices in the correct AEAT format automatically — including hash chains, QR codes, and XML records.

What is the AEAT website?

AEAT's official website is sede.agenciatributaria.gob.es. Most official forms and submissions are done through this portal.