I am on leave of absence
Your employer is not obligated to continue paying premiums for your ITP occupational pension when you are on leave.
However, premiums for TGL will be paid as long as you are employed and a resident in Sweden. Special rules apply if you are in the military service or studying.
If you are on leave for studies in accordance with the Study Leave Act (and are entitled to study assistance) your TGL may continue to apply through a so-called post protection for up to 27 months.