About the document
- Who files:
- The grantor (individual or organisation’s representative) — in person
- Where to submit:
- AEAT Delegación or Administración
- Authority:
- Spanish Tax Agency (Agencia Tributaria, AEAT)
- Country:
- Spain
- Category:
- Taxes (AEAT)
- How to fill:
- Chat in any language → original form → PDF
- Price:
- form free · chat €3 per document
- Last updated:
What this document is
Anexo I “Otorgamiento de apoderamientos mediante comparecencia” is an official form of the Spanish Tax Agency (AEAT). With it, the grantor goes to an AEAT office in person and enters in the register of powers (registro de apoderamientos) the person or firm who may act for them on the AEAT website: file applications, view data, receive notifications, pay taxes.
The power is given either for specific procedures (code and description from the AEAT catalogue) or for four general groups. It takes effect once entered in the register. FoxDocs fills in the official PDF without changing its layout.
Who files it and where
- the grantor — an individual or an organisation; for an organisation, its legal representative or a person with authority appears;
- the form is filed in person at an AEAT Delegación or Administración and signed before an officer, who checks identity;
- without a visit, the same can be done on the AEAT website with a digital certificate, DNIe or Cl@ve, or by a notarial document;
- a power to receive notifications only applies once the attorney accepts it: by signing the form under “Representante” at the AEAT office;
- if the form has a defect, you get 10 days to fix it; revoking a power in person uses a separate form, Anexo II.
What the form asks for
- grantor: full name and NIF, or the organisation’s name and NIF plus who acts on its behalf and their NIF;
- attorney: name or firm name and NIF;
- specific procedures: up to three rows — code, description, end date;
- general power: items 1–4 (procedures needing the taxpayer’s signature, viewing data, notifications, paying debts from the grantor’s account) and end date;
- place and date; signatures of the grantor, the attorney (for notifications) and the AEAT officer.
What to bring
- the completed form;
- an identity document (NIE/TIE, DNI or passport);
- for an organisation — proof of authority: articles and appointment of the director, or a notarial power;
- for a notifications power — the attorney, if they sign the form at the office;
- check on the AEAT website or at the office whether an appointment (cita previa) or other documents are needed.
How to fill it in with FoxDocs
- Tell the chat, in any language, who you are appointing, for what and until when.
- The assistant fills in both parties, ticks the chosen items and lays out the signing date.
- Download the PDF, check it and sign it at the AEAT office before an officer.
Source
Procedure ZP01 and form, Agencia Tributaria: sede.agenciatributaria.gob.es — Apoderamiento; rules — Resolución de 18 de mayo de 2010 (BOE-A-2010-8118). Checked 2026-10-09. This is not legal advice.