For any clarification technique can contact the Virtual Office of the Ministry of Industry, Trade and Tourism.
To facilitate access to services and procedures of the electronic site and processing through the same, it offers the following documentation of aid.
- [Signature MINETAD] requirements for the electronic signature with its own system of the ministry [pdf] [718.08 KB]
- [Signature @firma] requirements for the electronic signature with the sistema@firma [pdf] [970.58 KB]
- General requirements for the electronic signature [pdf] [1.43 MB]
- Requirements for the use of applications with access to the default gateway AEAT [pdf] [464.04 KB]