Excise taxes. Authorisation. Mixing of hydrocarbons with biofuels (Management Office)

General Data


Excise taxes. Authorisation. Mixing of hydrocarbons with biofuels (Management Office)

Type of procedure





In the case of biofuels destined for mixing with a fuel prior to finalisation of the suspension regime, as biofuels or chemically modified, the mixing operation will be carried out with the prior authorisation of the Excise Tax Management Office.

Responsible body

Tax Agency

General information on the procedure

Start method

Interested party

Applicant: Citizen - Company

Place of presentation

  • Online

  • AEAT (Tax Agency) offices


Application for authorising hydrocarbon and biofuel mixes.

Procedure/service stages

  • Initial step. Submission of application.

  • Formalities. By the Excise Tax Management Office.

  • End. Ruling by the Excise Tax Management Office

Resolution deadline

6 Month/s

Resolution body

Tax Agency


Economic-administrative claim: Application period: One month from the day following the notification of the contested decision or the day on which the proceedings or prior motion for reversal is deemed to be resolved. It shall be addressed to the administrative body that made the appealable decision.

Reconsideration: Application period: One month. Optional and filed with the office that made the administrative decision to be appealed, stating that no economic-administrative claim has been lodged against it.

Information concerning electronic procedure

Identification system

Electronic DNI (Spanish National ID), Electronic certificate, Clave PIN

Interactivity level

Level 4: Electronic processing


Normativa Básica

Real Decreto 1165/1995, de 7 de julio, por el que se aprueba el Reglamento de los Impuestos Especiales. Artículo 108.bis.3. (BOE 28-julio-1995)

Ley 38/1992, de 28 de diciembre, de Impuestos Especiales. (BOE 29-diciembre-1992)