The validity of an electronic signature/tags

Electronic signature/mark is valid for one year from their issue. The signature for one year is a property, not a mistake. The reason for limiting the validity of the signature is greater security.

In the event that an electronic signature is compromised (stolen, misused), it can be with a certification authority to have. For this reason, there are the so-called. certificate revocation lists (CRLS) that are always available on the website of the certification authorities.
The signature that has lost validity because of the end of the validity period, is not placed in the certificate revocation list.

If the signing certificate is not listed in the certificate revocation list, it means that its validity HAS NOT BEEN cancelled, therefore the signature was valid at the time of signing. It is unique for the recognition of the validity of the signature in the future. Therefore it is not necessary to have fears that after the end of the validity of the signature of Your tax voucher will not be valid.

As soon as it will be close to the expiration date of signature, our company in time (at least a month in advance) the request for the issue of the subsequent electronic signature to new tax documents several days after dispatch did not suggest that the validity of an electronic signature has expired.