Your Initial Enrollment Period (IEP) is a 7-month window:

• 3 months before you turn 65
• The month you turn 65
• 3 months after you turn 65

Example: If you turn 65 in June, your IEP runs from March through September.

You might qualify for a Special Enrollment Period (SEP) if you:

• Recently lost employer health coverage (yours or your spouse's)
• Are moving to a new area
• Qualify for Medicare Savings Programs or Extra Help
• Live in a disaster area
• Have other qualifying life changes

If you currently have employer coverage (from your job or your spouse's job), you might not need to enroll in Medicare right away. But there are important considerations:

• Large employers (20+ employees): You can usually delay Medicare Part B without penalties
• Small employers (under 20 employees): You should enroll in Medicare Part B because it becomes your primary insurance
• COBRA or retiree coverage: Usually doesn't protect you from Medicare penalties

If you miss the March 31 deadline, you'll have to wait until the next General Enrollment Period (January 1 – March 31, 2027). That's almost a full year of waiting.

However, you might qualify for a Special Enrollment Period if your life circumstances change:

• You lose employer coverage
• You move to a new area
• You qualify for Medicare Savings Programs
• Other qualifying events

No, you cannot choose your coverage start date. It's automatically set to the first day of the month after you complete your enrollment.

Examples:

• Enroll on January 5th → Coverage starts February 1st
• Enroll on January 28th → Coverage starts February 1st
• Enroll on February 1st → Coverage starts March 1st

This is why enrolling early in January is your best strategy if you want the shortest gap in coverage.

When you enroll in Medicare Part A or Part B during the GEP, you also become eligible for a Special Enrollment Period for Medicare Part D (prescription drug coverage).

Your Part D Special Enrollment Period:

• Starts the day you submit your GEP application
• Lasts for the first 2 months of your Part A/B coverage
• No late enrollment penalties during this window

Only complete 12-month periods count for penalties. Partial years are ignored.

Example: Sarah's Initial Enrollment Period ended September 30, 2023. She enrolls during the January 2026 GEP.

• October 2023 – September 2024: 1 full year
• October 2024 – January 2026: Only 3 months (doesn't count)

Sarah pays a 10% penalty (1 year × 10% = 10%), not 20%.

The Part B late enrollment penalty is permanent. You pay it every month for as long as you have Part B coverage.

This is why it's so important to enroll as soon as you can, rather than waiting longer. Each full year of delay adds another 10% to your monthly premium — forever.

Yes, some people can get the penalty waived:

• Medicare Savings Program enrollees: If you qualify for programs that help pay Medicare costs, your state pays the penalty
• Disability to age 65 transition: If you had Medicare due to disability and turn 65, previous disability-related penalties are waived
• Employer coverage situations: If you had qualifying employer coverage, you might avoid penalties entirely

These exceptions are complex. If you think you might qualify, talk to a licensed Medicare advisor before enrolling.

Why Online Is Best

• Available 24/7 — No waiting for business hours
• Fast — Usually takes less than 10 minutes
• Immediate confirmation — You get a receipt number right away
• No phone wait times — Just log in and apply

How to Apply Online

Go to SSA.gov and look for "Apply for Medicare." You'll need:

• Your Social Security number
• Birth certificate information
• Information about current health insurance (if any)

When to Call

Phone enrollment is good if you:

• Don't feel comfortable with online forms
• Have questions about your application
• Need help understanding your options

Tips for Calling

• Call early in the day — Wait times are shorter in the morning
• Call mid-week — Mondays and Fridays are busiest
• Have your information ready — Social Security number, birth date, address
• Be patient — During the GEP, wait times can be 30+ minutes

Finding Your Local Office

Use the office locator at SSA.gov/locator or call 1-800-772-1213.

Making an Appointment

Highly recommended: Schedule an appointment in advance. Walk-ins can face very long wait times, especially during the GEP.

What to Bring

• Government-issued photo ID
• Social Security card or W-2
• Birth certificate
• Information about current insurance

Don't worry — small mistakes can usually be fixed easily:

• Contact Social Security immediately if you notice an error
• Most corrections can be made over the phone
• Your effective date won't change for minor corrections

The important thing is to get your application submitted during the GEP window (January 1 – March 31). Details can be corrected later.

Part D: You don't choose a Part D plan during GEP enrollment. After you enroll in Part A/B, you'll get a Special Enrollment Period to choose Part D coverage.

Medicare Advantage: You can't enroll in Medicare Advantage during the GEP. You'll get Original Medicare (Parts A and B) first. You can switch to Medicare Advantage during the next Open Enrollment Period (October 15 – December 7).

What It Is

Short-term health insurance provides temporary coverage for 1-12 months. It can bridge the gap between now and when your Medicare starts.

Pros

• Can provide immediate coverage
• Usually covers emergency and urgent care
• Often includes prescription drug coverage
• Can be purchased quickly online

Cons

• May not cover pre-existing conditions
• Not as comprehensive as regular insurance
• Can be expensive for older adults
• May have waiting periods for some services

If You Have COBRA Available

If you recently lost employer coverage and have COBRA available, you might be able to continue it temporarily.

Important Timing

• You usually have 60 days from losing coverage to elect COBRA
• COBRA typically lasts up to 18 months
• You can drop COBRA when Medicare starts

Complex Rules Apply

Marketplace plans and Medicare have complicated interactions:

• Before you have Medicare Part A: You might be eligible for Marketplace coverage
• After you enroll in Medicare: You're generally not eligible for premium tax credits
• Timing is critical: You don't want to pay for both Medicare and a Marketplace plan