INSURANCE BRIEF

Delaying Medicare Part B — What it Means for Your Medigap Options

May 12, 2026 · 3 min read · By: Justin Tomlin – Licensed Insurance Agent (FL W960118 | GA 3760385)

How Part B enrollment timing connects to Medigap — also called Medicare Supplement Insurance — is something worth understanding before making this decision. Getting it wrong can limit coverage options that may be difficult or impossible to recover later.

How Part B enrollment timing connects to Medigap — also called Medicare Supplement Insurance — is something worth understanding before making this decision. Getting it wrong can limit coverage options that may be difficult or impossible to recover later.

When Delaying Part B is Safe

Delaying Part B is generally safe when a person is actively employed and covered under a group health plan through their own employer or a spouse’s employer (more on that later). This is called creditable coverage — meaning Medicare recognizes it as comparable to Part B.

When that coverage ends — due to retirement, job loss, or a spouse losing employment — a Special Enrollment Period opens. This window typically lasts eight months. During that time, a person can enroll in Part B without a late enrollment penalty.

One important exception: COBRA coverage and retiree health plans do not qualify as creditable coverage for this purpose. Delaying Part B while relying on COBRA is not a safe delay, even if the COBRA coverage feels equivalent to the prior employer plan.

How Medigap Open Enrollment Works

Medigap open enrollment is a one-time six-month window. It begins the month a person is both age 65 or older and enrolled in Medicare Part B.

During this window, insurance companies must sell a Medigap policy to anyone who applies. They cannot charge more or deny coverage based on health history or pre-existing conditions. This is called guaranteed issue — an applicant cannot be turned away or rated up for health reasons.

Once this window closes, it does not reopen. Outside of open enrollment, insurers in most states — including Florida and Georgia — can use medical underwriting. They can ask health questions, charge higher premiums, or decline an applicant entirely based on health history.

The Risk of Delaying Incorrectly

If Part B is delayed without qualifying creditable coverage, two things happen. A late enrollment penalty is added to the Part B premium — permanently. And the Medigap open enrollment window does not begin until Part B is obtained.

By the time Part B is finally in place, the person may be older with health conditions that make Medigap difficult or impossible to qualify for through underwriting. That window — and the guaranteed access it provided — is gone for good.

Before Making This Decision

Anyone considering a Part B delay should confirm their current coverage qualifies as creditable. Employer size matters — for employers with fewer than 20 employees, Medicare is typically primary even when employer coverage is active. In that situation, delaying Part B can create gaps even with employer insurance in place.

Decisions about Part B timing have long-term consequences for both cost and coverage access. A licensed insurance agent or a free SHIP counselor can help evaluate the options before any window closes.

Official Resources for Making Decisions

This article is for general educational purposes only and does not constitute an offer to sell or a solicitation of an offer to buy any insurance product. Medicare has specific enrollment periods — missing them may result in gaps in coverage or late enrollment penalties. Contact Medicare.gov or 1-800-MEDICARE for complete plan information. CHL Insurance Solutions is an independent licensed insurance agency (FL L131407 | GA 241106).