Late Enrollment Penalty (LEP) for Part B
If an individual did not sign up for Part B when first eligible, the individual may have to pay a late enrollment penalty for as long as the individual has Medicare. The individual’s monthly premium for Part B may go up 10% for each full 12-month period that the individual could have had Part B but did not sign up for it.
For individuals enrolling using the SEP for the Working Aged and Working Disabled, the Part B LEP is calculated by adding the months that have elapsed between the close of the individual’s IEP and the end of the month in which the individual enrolls. For enrollments after your IEP has ended, months where you had group health plan coverage are excluded from the LEP calculation.
For individuals enrolling using an Exceptional Conditions SEP, the International Volunteers SEP, or the SEP for Certain TRICARE Beneficiaries, no LEP will be applied.