Do You Have to Enroll in Medicare When You Turn 65?

Turning 65 is an important Medicare milestone, but it does not automatically mean you must sign up for every part of Medicare on day one. What you need to do depends on the coverage you have right now and your work situation.

You may not have to enroll in every part of Medicare at 65, but delaying without the right type of coverage can lead to gaps in coverage and late-enrollment penalties.

Medicare decisions can look different depending on your situation. Someone who is actively working, covered through a spouse's current employment, retired, self-employed, on COBRA, or covered by a retiree plan may each have a different path. That is why it helps to understand the rules before you decide.

When You May Be Able to Delay Medicare

You may qualify for a Special Enrollment Period and be able to delay Part B without a penalty if:

• You or your spouse are actively working, and
• You have group health coverage based on that current employment.

Employer size and how your plan works with Medicare can matter. Before you delay Medicare, confirm your individual situation with your employer or benefits administrator.

Do not assume that every employer plan, retiree plan, COBRA plan, Marketplace plan, or private health plan allows you to delay Part B without consequences.

Creditable Prescription Drug Coverage Matters Too

Medicare Part D helps cover prescription drugs. If you plan to delay Part D, confirm that your current prescription-drug coverage is considered creditable — meaning it is expected to pay, on average, at least as much as standard Medicare prescription-drug coverage.

• Employers and plans generally provide a creditable-coverage notice each year.
• Keep this notice in a safe place.
• If you go 63 days or more without Medicare drug coverage or other creditable prescription-drug coverage after becoming eligible, you may owe a Part D late-enrollment penalty later.

What Happens If You Delay Part B Without Qualifying Coverage

If you delay Part B without qualifying for a Special Enrollment Period:

• The Part B late-enrollment penalty is generally an additional 10% for each full 12-month period you could have had Part B but did not enroll.
• The penalty is added to your monthly Part B premium.
• In most cases, the penalty lasts as long as you have Part B.
• You may also have to wait for the General Enrollment Period to enroll.

What Happens If You Delay Part D Without Creditable Coverage

If you delay Part D without creditable coverage:

• The Part D late-enrollment penalty is generally 1% for each full month you went without Medicare drug coverage or other creditable drug coverage after becoming eligible.
• The penalty is added to your Part D premium.
• In most cases, it continues for as long as you have Part D coverage.
• The actual dollar amount can change because it is based on the national base beneficiary premium, which may change each year.

Coverage That Requires Extra Attention

Important: COBRA, retiree coverage, Marketplace coverage, private health plans, and other non-active-employment coverage may not protect you from Part B late-enrollment penalties or give you the same Special Enrollment Period rights.

Before you make changes, speak with your benefits administrator and a licensed insurance broker to confirm how your coverage works with Medicare.

A Simple Checklist Before You Delay Medicare

• Am I or my spouse still actively working?
• Is my coverage based on that current employment?
• Is my employer coverage considered primary or secondary to Medicare?
• Is my prescription-drug coverage creditable?
• Have I saved my creditable-coverage notice?
• What happens to my coverage if I enroll in Medicare?
• When will I need to enroll in Part A, Part B, and Part D?
• Have I reviewed my situation with my employer benefits administrator and a licensed broker?

Official Medicare Sources

For the most current official information, visit:

• Avoiding Medicare late-enrollment penalties
• Creditable prescription drug coverage

This article is for general educational purposes only and is not legal, tax, or medical advice. Medicare rules, costs, coverage, and enrollment rights can vary by individual circumstances. Please confirm your situation with your employer or benefits administrator and review official Medicare information before making enrollment decisions.