Error 403, SSL connection error, The page cannot be shown or Secure connection failed when accessing or signing a procedure on the internet
Skip information indexError 403 - You DO NOT have an electronic certificate or DNI
When does error 403 appear?
Error 403 is an identification error. It occurs when accessing a procedure that requires identification with a certificate or electronic DNI and the internet browser does not detect any signature.
If you do not have an electronic certificate, this error code will appear when accessing a procedure that requires it.
The system will automatically offer the options available to access with electronic identification of the procedure in question. If you only allow entry with a certificate or DNIe you will receive a 403 error. If the procedure allows Cl@ve or another type of identification, the necessary data will be requested to continue with the identification.
The 403 error will also appear when accessing, without having a certificate, "Register in Cl@ve with certificate or DNI electronic". Remember that registration in Cl@ve can also be done online without a certificate, by video call or by requesting an invitation letter by accessing the "Register in Cl@ve" service. In-person registration at registration offices is also possible.
What is a digital certificate?
The certificate is an electronic signature that is installed in the browser to guarantee your identity on the Internet and allows you to carry out procedures from your own computer without having to travel (for example, accessing your tax data, submitting your returns electronically, making payments or requesting and collect certifications directly through the Tax Agency website).
The electronic certificate is not requested through the Tax Agency's website but through the website of an issuing entity.
The procedure for obtaining a certificate that allows you to identify yourself on the AEAT page may vary depending on the issuing entity. Likewise, in the event of incidents in requesting or obtaining the certificate, it is necessary to contact the corresponding issuing entity, since the requirements and circumstances may vary in each of them. All issuing entities have options and help services that can be accessed from their websites.
How does the electronic DNI work?
The AEAT website supports identification and signature using the electronic DNI . To use it, you need certain pieces of hardware and software that can access the card's chip, and therefore access the certificates contained in it. In addition, the certificates must remain valid since they expire 24 months after the issuance of the DNI , if they are not renewed before at one of the Update Points of the DNI located in the issuing offices, and know the PIN that protects access to the functionalities in the DNIe .
When accessing an option on the web page that requires an electronic certificate, the browser must request the PIN and then display the certificate store to be able to choose the appropriate one (authentication or signature).