Would like to know what, if anything, others are offering as an incentative for not "calling off" within a three (3) month period. We have PTO and cannot carry over any unused time into the next anniversary year. This makes it so that at the end of one's anniversary year, you could possibly have quite a lot of PTO left and end up taking time off (so it's not lost) just when you need to be at work (behind, audits, special projects). Most staff do take theirs throughout the year but some find it hard to take off.

If the end of the calendar year is a busy time of year for your company, why not change the end of the year for your PTO to a different time, so that everyone has to use up their time by, for example, Jun 30 instead of Dec 31st? Or use employee's anniversary dates so that the deadlines for using up time are staggered throughout the year?