How to download or install your electronic certificate
After requesting the electronic certificate and accreditation (when necessary), the procedure for obtaining the certificate may vary depending on the issuing entity in question. In some cases it involves direct download via the Internet to the browser or smart card; In others, the issuing entity provides a copy of the electronic certificate on a digital storage unit along with an installation guide for the user to install in their browser.
In any case, the download or obtaining is carried out through the issuing entity and is outside the Tax Agency. If the electronic certificate is successfully installed in your browser, a window will appear that requests its acceptance every time the identification or signature is required by the AEAT website
Download and install a certificate from the FNMT
To download an FNMT electronic certificate it is necessary to access the FNMT website again.
Look for the link to download the certificate where you will be asked to enter again the NIF or NIE , the first surname as indicated when requesting the certificate. certificate and the code that was sent by email in the application process. Accept the conditions of use of the certificate and click "Download Certificate". For the certificate to be downloaded correctly, the obtaining and downloading process must be carried out from the same computer and with the same user.
The browser will open the key generation application again, enter the password that you indicated at the time of the request and if the password is correct, the option to make a backup copy of the certificate will be offered (Recommended). Finally, the system will proceed to install the certificate.
To report any questions or incidents in downloading the certificate, contact the issuing entity. In the side menu of the FNMT page you will find the "Technical Support" section, "User Support" with the contact information for FNMT and a link to "Frequently Asked Questions".