Can my family join me in Poland if I hold a single permit?

The single permit authorises your own stay and work, but it does not directly cover your spouse or children. To bring your family, they would typically apply for their own temporary residence permit for the purpose of family reunification once you are established in Poland.

Family reunification has its own conditions, including requirements around your stay, accommodation and resources. Because these are assessed separately, plan family applications as distinct cases and confirm what evidence is needed rather than assuming they are tied to your work permit.