A maximum limit of the carried over leave can be set in Admin > Settings > Core defaults > 'Max Carry Fwd leave'. By setting this value to 0, MyWebWorkplace does not automatically carry forward any leave from the last leave year in to the next. By setting this value to your standard entitlement of, for instance, 20 days MyWebWorkplace will carry over all of the unused entitlement from the previous year for each employee. *Only the unused portion of the entitlement from the previous year will be carried over up to the maximum allowed.*
A rule can also be set in Admin > System Functionality (dropdown menu) > Leave > absence rules called 'AL Carry Over must be used within N Days of Cycle Start'. This rule will expire the carried over leave after a preset number of days.