**Vacation time accrual can be prorated by taking the amount of time worked during a period, dividing it by the time amount of the period covered and then multiplying it by the number of days that can be earned during the period.** For full periods worked, no prorating is needed.

Prorating vacation time accrual is a method for determining how much vacation time an employee earns when hired between vacation earning periods. Prorating also occurs at the end of an employee's work for a company to determine how much vacation time is earned, so the employee can be compensated for unused time.