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Protocol for the implementation of the provision of information for tax purposes by the Autonomous Communities and cities with a statute of autonomy (PROTCCAA - June 2021)

3.1.1. Information request via CESII

Access to the application is offered through the electronic office ( Immediate transfer of information: request New window ). To enter it will be necessary to authenticate with an electronic certificate. The application includes a tutorial.

The user must select the necessary supply from among those authorized.

The request, which will consist of a list of records (understood as a NIF followed by the full name - format: first surname second surname name or company name -), it can be done in two ways:

  • Uploading a file in “.csv” format. It is not necessary to use any special program to prepare the file. Directly, from Excel you can save the document as a “.csv” file. The “.csv” file is a simple type of document to represent data in table form: Columns are separated by semicolons, and rows by line breaks. If you are working with the Excel program, you can save the file with the “.csv” extension. In turn, a “.csv” file can be opened with the Excel program, viewing the information as a table.
  • By directly writing, in a text field, a NIF or several NIFs one per row (separating the NIF from the full name/company name with a semicolon).

Depending on the supply selected, the maximum number of records requested in each request will vary. This number will be specified in the web application.

The designs can be consulted on the Tax Agency website:

Registry design via CESII - Identification data supplies New window

Registry design via CESII - Asset information supplies New window