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Documents for issuance, re-issuance and extension of the term of validity of an electronic signature

Issuance of Personal Electronic Signature:


  • ID card of the Author or his/her representative, if another person is authorized to receive the signature.
  • Notarized power of attorney of the representative by BORICA's template.
  • Contract for certification services. The contract will be provided for signature upon receipt of the electronic signature at BORICA – BANKSERVICE’s office. You can read the contract in advance below on this page.
  • Filled online request for electronic signature.

Renewal of Qualified Electronic Signature:

Renewal of the validity of B-Trust certificate requires no change in the information contained therein. The renewal may be executed in two ways:

  • Submitting online request for renewal of the term of validity of the certificate, signed by the valid electronic signature; in this way the applicant declares that there is no change in the personal information contained therein. 
  • Submitting a request in the Provider’s office by the Author of the certificate or his/her authorized representative.

Issuance of Professional Electronic Signature:

For the company (the Titular):
  • Certificate of registration in the Commercial Register or other document certifying the legal status of the company/organization.
  • ID card of the authorized representatives of the Titular (or of the person authorized to represent him/her) – an original and a copy of both sides – manually signed.
  • Notarized power of attorney by BORICA's template. It is required only in cases when the Titular authorizes a representative to represent him/her before a Certification Services Provider for issuance and receipt of electronic signatures.
  • Contract for certification services. It is signed by the Titular or the authorized by him/her representative when they visit BORICA – BANKSERVICE’s office. You can read the contract below on this page.
For each entity (Author) to whom electronic signature will be issued:

Documents according to the Electronic Document and Electronic Signature Act

Contact us


41 Tsar Boris III Blvd.
1612 Sofia
e-mail: office

Lost or stolen signature

In case of lost or stolen signature – for temporarily suspension of 48 hours, call

0700 199 10 or *9910

In order to terminate your electronic signature, visit one of our offices.


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