Who is affected by the new obligation

The obligation applies to entrepreneurs registered in CEIDG before January 1, 2025. It arises from the e-Doręczeń service announcement dated September 16, 2026. Companies established from January 1, 2025, create an address during registration, as stated by Zielona Linia in the summary of changes for autumn 2026.

The scope of the dedicated announcement is narrower than the announcement from the Ministry of Development and Technology on September 15, 2026, which refers to every entrepreneur. Given this discrepancy, we adopt the scope from the e-Doręczeń announcement. For entities registered in KRS, the gov.pl service only generally indicates that the obligation applies to them according to the schedule, so we do not provide any specific date for them.

How to create an address and activate the mailbox

The application is submitted through the e-service available on Biznes.gov.pl. It must be signed with a trusted profile, qualified signature, or personal signature. Obtaining the address is free of charge and is done entirely online.

Submitting the application alone does not conclude the matter. The mailbox must be activated according to the instructions sent to the email address. After activation, the address is added to the Electronic Address Database, and from that moment, offices using e-Doręczeń direct correspondence there. The entrepreneur can manage the mailbox independently or appoint an administrator to handle it on their behalf.

Changes to entries in registers

From October 1, with each change of entry in KRS or CEIDG, it is necessary to provide data regarding the e-Doręczeń address. The Ministry emphasizes this in the announcement from September 15, and Zielona Linia specifies that this also applies to individuals running sole proprietorships who wish to change their entry in the register.

This rule applies regardless of whether the address has already been established previously. A company planning to change its data should therefore first address the mailbox issue.

Why the mailbox requires regular checks

Messages received via e-Doręczeń can have legal consequences, and the gov.pl service recommends checking the mailbox regularly to avoid missing correspondence and related deadlines. According to the same service, e-Doręczeń has the same legal effect as a registered letter with acknowledgment of receipt.

Costs depend on the recipient. Sending to a public entity via the public service of registered electronic delivery is free of charge. Correspondence between non-public entities is chargeable, and prices are set by the qualified service provider.

What is worth remembering

• From October 1, 2026, entrepreneurs registered in CEIDG before January 1, 2025, must have an active e-Doręczeń address. • The address is created free of charge, online, through the e-service on Biznes.gov.pl, signed with a trusted profile, qualified, or personal signature. • The application alone is not sufficient, as the mailbox must be activated via a link from the email message. • When changing an entry in KRS or CEIDG after October 1, it is necessary to provide e-Doręczeń data. • Messages in e-Doręczeń can have legal consequences, so it is advisable to check the mailbox regularly.