How to legalize the stay of an unaccompanied child who came from Ukraine?

In order for the stay of an unaccompanied child from Ukraine to be considered legal in Poland, the following conditions must be met.
The child must meet the following conditions cumulatively (all conditions must be met):

  • be a citizen of Ukraine,
  • to come to Poland from Ukraine due to the hostilities carried out there,
  • legally enter Poland from February 24.02. 2022

If the child’s entry into the territory of the Republic of Poland has not been registered when crossing the border, then it is necessary to register this stay by submitting an application for granting a PESEL number within 90 days from the date of entry.

The duration of legal stay is 18 months from February 24, 2022. However, it should be remembered that a child who came to Poland without an adult guardian must be represented by a temporary guardian. This means that if such a situation arises, you must always apply for the appointment of a temporary guardian. https://ukraina.interwencjaprawna.pl/how-to-become-a-temporary-guardian-of-a-child-from-ukraine-without-parents/
A child who meets the above conditions will also be able, after 9 months from the date of entry to Poland, but not later than August 24, 2023, to apply for a temporary residence permit on the same terms as an adult. The only difference will be that the legal guardian will have to sign the application on behalf of the child.
If the crossing of the border has not been registered in the child’s documents, the guardian of the child should register the crossing of the border by the child in the appropriate commune office. Along with registering the border crossing on behalf of the child, it is worth applying for a PESEL number.
https://ukraina.interwencjaprawna.pl/how-to-get-pesel-number/
This will allow you to apply for additional cash benefits related to raising a child.