To be able to renew the certificate, you must take into account:

  • Online renewal can only be done from a computer.
  • The certificate must be in the renewal period, that is, between the 60 days before its expiry (the idCAT certificate has a duration of 4 years).
  • It can only be renewed online once every 5 years *.

*According to the General Certification Policy , if more than five years have passed since the last time the holder identified himself in person at a Registration Entity office, he will have to present himself again to carry out the renewal For this reason, the online renewal process will only be possible once every 5 years.

You can renew online or in person at a idCAT Registration Entity.

Below we explain the steps to follow to renew your idCAT Certificate online :

Step 1 . Go to with the browser where you have installed the idCAT Certificate and go to the "Renew the certificate" section.

Go to the renew the certificate section of the Certificate Management section

Step 2. Press the "Next" button, the certificate selector will appear, select your idCAT Certificate in renewal period and continue.

Note: If you access from the renewal link in the expiration notice email, you will be taken directly to the certificate selector. Select yours and continue.

Step 3. You will see the details of your certificate on the screen, check that the details are correct and press "Download".

If any of the data is incorrect, it will be necessary for you to go to a Registration Entity in order to obtain a new idCAT Certificate.


If using Windows, if prompted to "Save" or "Open", click "Save" to save the certificate file to your browser's download location.

If using Mac and Safari press "Allow" to complete the download process.

Once done, you will see a message confirming that the download was successful.

Step 4. Next, install the renewed idCAT certificate .p12 or .pfx file by following the installation instructions according to your operating system.

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