Agencia Tributaria: Spain’s national tax agency

What does it mean?

Agencia Tributaria commonly refers to the Agencia Estatal de Administración Tributaria, or AEAT. Its official website provides tax information and procedures.

A professional adviser can assist you, but their website is not the tax agency’s own portal.

An everyday example

Before answering a tax message, use the official service to confirm that the request is genuine.

What to do next

1. Start at the official AEAT website rather than a payment link in an unexpected message.
2. Choose the service matching the tax or letter you are dealing with.
3. Check which identification method is accepted.
4. Save any submission receipt and verify the outcome in the official service.

A useful question to ask

Which AEAT procedure matches the reference on this letter?

Check the official guidance

Agencia Tributaria: tax-administration glossary

Sources checked on 8 September 2026. These explanations and preparation prompts are introductory, not complete procedural instructions or individual legal, tax or medical advice. Confirm current requirements with the responsible authority or qualified professional before acting.

Related words

• Declaración de la renta: Your income-tax return
• Cl@ve: Identifying yourself online with Cl@ve
• Justificante de pago: Proof that a payment was made