I recently commissioned from the ranks and am wondering about leaving (already!). Does anyone know how I find out when I reach my IPP? Is it 16yrs from my 21st as if I'd always been commissioned or do I have to serve a minimum number of years as an officer? I've been around the houses with my clerks to no avail! Obviously I don't want to leave without the pension as I've already served 17yrs. Thanks for any help.