How long is a Bulgarian student residence permit valid and can it be renewed?

Student permits are tied to the length of your course. In practice the permit is granted for the study period with validity of up to a year, and you renew it each year as long as you stay enrolled and in good standing.

Because the permit lapses when your studies end, you need to keep your enrolment current and apply for renewal in good time. Plan each academic year around the renewal so there is no gap in your legal status, and keep your enrolment certificates and fee receipts ready for each application.