COBRA-to-Medicare Bridge Cost Calculator

Planning the cost-effective transition from employer coverage to Medicare. This application is commonly used by professionals who need precise quantitative analysis to support decision-making, budgeting, and strategic planning in their respective fields

Determining when to drop COBRA and enroll in Medicare. Industry practitioners rely on this calculation to benchmark performance, compare alternatives, and ensure compliance with established standards and regulatory requirements, helping analysts produce accurate results that support strategic planning, resource allocation, and performance benchmarking across organizations

Calculating COBRA premium as bridge coverage before 65. Academic researchers and students use this computation to validate theoretical models, complete coursework assignments, and develop deeper understanding of the underlying mathematical principles

Avoiding the Medicare late enrollment penalty after job loss. Financial analysts and planners incorporate this calculation into their workflow to produce accurate forecasts, evaluate risk scenarios, and present data-driven recommendations to stakeholders

Should I take COBRA or go straight to Medicare at 65?

If you are retiring at or near 65, you should generally enroll in Medicare at 65 rather than taking COBRA. Medicare with a Medigap supplement will almost always cost less than COBRA and provides equivalent or better coverage. COBRA is most useful as a bridge when you retire before 65 and have no other coverage option.

Can I have both COBRA and Medicare at the same time?

Yes, but it is generally not financially sensible to pay for both. If you have both, Medicare becomes the primary payer and COBRA pays secondary — reducing your net Medicare out-of-pocket costs. However, the combined premium cost is substantial. Some people keep COBRA briefly while awaiting Medigap approval. This is an important consideration when working with cobra to medicare bridge calculations in practical applications.

Does COBRA loss create a Medicare Special Enrollment Period?

No. Losing COBRA does not trigger a Medicare SEP. The SEP is only triggered by the end of active employer group health coverage (from a current employer). Losing COBRA while past your IEP means you cannot enroll until the General Enrollment Period (January 1 – March 31), with Medicare starting July 1 — a potentially long gap and permanent late penalty.

How much does COBRA typically cost?

COBRA premiums equal the full cost of the health plan — both the employee's and employer's shares — plus a 2% administrative fee. Employer-sponsored health coverage averages $8,435/year for single coverage and $23,968/year for family coverage in 2023 (KFF Employer Health Benefits Survey). COBRA exposes you to the full cost your employer was subsidizing.

What is the General Enrollment Period for Medicare Part B?

The GEP runs January 1 – March 31 each year for those who missed their IEP or SEP. Coverage begins July 1 of that year. This 3-month coverage gap (April–June) combined with the late enrollment penalty makes missing enrollment windows very costly. In practice, this concept is central to cobra to medicare bridge because it determines the core relationship between the input variables.

Can I use ACA marketplace coverage as a COBRA alternative?

Yes. Losing job-based coverage (including at retirement) is a qualifying life event that triggers a 60-day Special Enrollment Period for ACA marketplace plans. If your income is between 100–400% of FPL, you may qualify for premium tax credits that make marketplace coverage less expensive than COBRA. Compare costs carefully. This is an important consideration when working with cobra to medicare bridge calculations in practical applications.

Does COBRA affect my Medigap open enrollment?

No. Your Medigap Open Enrollment Period is based on when you enroll in Medicare Part B, not when your COBRA ends. Enroll in Part B promptly when eligible to start the 6-month Medigap Open Enrollment Period during which insurers cannot medically underwrite. This is an important consideration when working with cobra to medicare bridge calculations in practical applications. The answer depends on the specific input values and the context in which the calculation is being applied.

What if I have retiree health coverage from my employer?

Employer retiree health coverage is different from COBRA. Retiree coverage may continue indefinitely and sometimes coordinates with Medicare as a secondary payer. Review your retiree coverage carefully — sometimes it is more cost-effective than dropping it for Medigap, and sometimes Medicare + Medigap is better. This is an important consideration when working with cobra to medicare bridge calculations in practical applications.