Medicare 2026

The seven-month Medicare sign-up window in Lowell

LOWELL, Mass. — If your 65th birthday is on the horizon, the single most important thing to know about Medicare is this: you have a seven-month window to sign up, and missing it can cost you for the rest of your life. That window is called the Initial Enrollment Period, or IEP, and getting the timing right is the first big step into Medicare.

Aging into Medicare: the enrollment window you don't want to miss

Here's a plain-language guide to how it works, what to do first, and the mistakes people most often make.

What the Initial Enrollment Period actually is

Your IEP is a seven-month stretch built around the month you turn 65. It includes:

• The three months before your birthday month
• Your birthday month
• The three months after your birthday month

So if you turn 65 in June, your IEP runs from March 1 through September 30. If you sign up in the three months before your birthday, your Medicare usually starts the first day of your birthday month. Sign up later, and coverage starts the month after you enroll.

The rules and dates come straight from the Centers for Medicare & Medicaid Services (CMS) — you can double-check anything you read here at medicare.gov.

Do you need to sign up, or will it happen automatically?

This trips up a lot of people.

• If you're already getting Social Security or Railroad Retirement benefits at least four months before you turn 65, you'll usually be enrolled in Part A and Part B automatically. Your red, white, and blue card will arrive in the mail.
• If you're not drawing Social Security yet — which is more and more common as people work longer — nothing happens automatically. You have to sign yourself up through the Social Security Administration, online at ssa.gov, by phone, or at a local office.

If you're in Lowell and still working past 65, don't assume your HR department will handle it. They won't.

The mistake that follows people for life

The biggest, most painful IEP mistake is skipping Part B when you should have taken it — usually because someone thought their existing insurance was "good enough."

Here's the rule of thumb:

• If you have job-based coverage from a current employer with 20 or more employees (yours or your spouse's), you can usually delay Part B without a penalty and pick it up later through a Special Enrollment Period.
• If you have retiree coverage, COBRA, VA benefits alone, or a Marketplace plan, those do not protect you from the Part B late-enrollment penalty.

The Part B penalty is 10% added to your monthly premium for each full 12-month period you could have had Part B and didn't. It sticks with you for as long as you have Medicare. A similar (smaller) penalty applies to Part D drug coverage if you go without creditable drug coverage for 63 days or more.

If you're unsure whether your current insurance counts as "creditable," ask your benefits administrator for that word specifically, in writing.

First steps, in order

A simple checklist for someone in Lowell approaching 65:

1. About 6 months out: Check your Social Security account at ssa.gov. Confirm your address and decide whether you'll draw Social Security at 65 or wait. 2. Ask your employer (or your spouse's) whether their plan is creditable coverage for Part B and Part D, and how it coordinates with Medicare. 3. Decide on Part B. If you're retiring or don't have qualifying employer coverage, plan to enroll during your IEP. 4. Learn the two paths. Once you have Part A and Part B (Original Medicare), you'll choose between (a) staying with Original Medicare and often adding a Medigap policy plus a standalone Part D drug plan, or (b) enrolling in a Medicare Advantage plan (Part C), which bundles everything together. 5. Compare what's available. Lowell is in Middlesex County, and plan availability — the number of Medicare Advantage and Part D plans offered — is set at the county level. You can see the full list of plans serving Middlesex County using the Plan Finder at medicare.gov.

A few 2026 and 2027 numbers worth knowing

Medicare changes a little each year. A few figures apply across the whole program, no matter which plan you choose:

• The Part D out-of-pocket cap is $2,100. Once your covered drug spending hits that ceiling, you pay $0 for covered drugs the rest of the year.
• The Part D deductible can be no higher than $615.
• The old "donut hole" coverage gap is gone as of 2025; Part D now has three simpler phases.
• The Medicare Prescription Payment Plan lets you spread your drug costs across the calendar year in monthly installments instead of paying big amounts at the pharmacy counter — it's optional and free to opt into.
• IRMAA — the income-related surcharge on Part B and Part D — kicks in for single filers with income above $109,000 (based on your tax return from two years earlier).

Keep in mind that Medicare's yearly Annual Enrollment Period runs October 15 through December 7, and Medicare Advantage has its own Open Enrollment from January 1 through March 31. Those come around every year — but your IEP only happens once.