Medicare Part B Special Enrollment Calculator
Calculate SEP eligibility and late enrollment penalty.
SEP Eligibility
Coverage Type:employer
SEP Qualified:Yes
SEP requires active employment coverage. COBRA does NOT qualify for SEP.
Enrollment Periods
IEP (Initial)
3 months before to 3 months after 65
SEP (Special)
8 months after coverage ends
GEP (General)
January 1 - March 31 (coverage July 1)
SEP Window
2024-03 to 8 months after coverage ends
SEP allows enrollment without penalty when employer coverage ends.
Recommendation
Enroll during SEP when coverage ends - no penalty
Enroll during SEP if eligible to avoid lifetime penalty. Part A is premium-free for most.
Part B Premium 2024
Standard:$ 174.70
With Penalty:$ 174.70
IRMAA may apply based on income. Penalty adds to base premium permanently.
Part B Enrollment Key Points
- IEP: 7-month window around age 65
- SEP: 8 months after coverage ends
- SEP requires active employment
- COBRA does NOT qualify for SEP
- Late penalty: 10% per 12-month delay
- Penalty is lifetime
- Enroll during SEP to avoid penalty
- Part A is premium-free for most
- GEP: Jan-Mar, coverage July 1
- Report coverage end to SSA