When to Sign Up for Medicare: The 7-Month Window
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Lightly edited for readability.
If you're turning 65 in the next year, there are a few things you're going to want to know.
The first question you need to ask yourself: do I need to go ahead and take my Medicare, or can I delay it? A general rule of thumb is that if you're still working and you have qualifying coverage, or if your spouse is still working and you're on their coverage, then typically you can delay your Medicare.
Next, if you decide you do need to enroll, when do you enroll and how do you enroll? You have a seven-month window. It is three months before your 65th birth month, your 65th birth month, and three months after. So you have a seven-month window to enroll in your Medicare with no penalty.
I tell all my clients it pays to be proactive. Go ahead and enroll in your Medicare three months before, so it will start the first day of your 65th birth month.
How do you enroll? There are a few different options. You can call Social Security, you can go into the local Social Security office, or my favorite personally is doing it online. That's the simplest route. It takes most of our clients about 15 to 20 minutes.
Next, you need to know that Original Medicare is made up of two parts, Part A and Part B. Part A: think about anything inside the hospital. It's your hospital coverage. Typically Part A doesn't cost you a penny each month over the age of 65, and the reason is that you paid for it through your working life, whether you knew it or not.
Part B is your medical coverage. Think about anything outside of the hospital, it's going to fall under your Part B. Going to your primary care doctor, your specialist. Part B is $202.90 in 2026. If you're a higher income earner, it could be more. And if you're drawing Social Security, that $202.90 will typically come out of your Social Security check, out of sight, out of mind.
The next thing you need to know is these two terms: Medicare Advantage and Medicare Supplement. On our website there's a link where you can do a deeper dive into these key differences. There are pros and cons to both, so definitely do your research. And if you choose not to do a Medicare Supplement or a Medicare Advantage, one thing I would recommend is to certainly go get a prescription drug plan.
I wrote the full Turning 65 guide in plain English so everyone can understand it. I'm going to link that below, so if you want to keep doing some research as you approach 65, I highly recommend you do that. Or if you'd rather have myself or one of my team members look over your situation, you can always call us here directly at (859) 618-6443.
My name is Austin with Tyler Insurance Group. We're right here in Lexington. Our office is in the Beaumont Circle. So if you're turning 65, we'd be happy to help you out. Have a great rest of the day.
Most of the Medicare mistakes I help people fix come down to one thing: timing. Medicare isn't something you can sign up for whenever you get around to it. There's a specific window, it's only seven months long, and missing it can cost you money every single month for the rest of your life.
The good news? Once you understand the window, it's simple. Let's walk through it.
Your Initial Enrollment Period is 7 months
When you turn 65, you get a one-time Initial Enrollment Period (IEP) to sign up for Medicare Part A and Part B. It runs for seven months:
- The 3 months before the month you turn 65
- The month you turn 65
- The 3 months after the month you turn 65
So if your 65th birthday is in September, your window opens June 1 and closes December 31. That's it.
Some people are enrolled automatically — many are not
If you're already collecting Social Security benefits before 65, you'll usually be enrolled in Part A and Part B automatically — your card just shows up in the mail. Easy.
But if you haven't started Social Security yet (more and more people wait), nobody signs you up. It's on you to do it during that 7-month window. This is where a lot of folks get tripped up.
The penalty that follows you for life
Here's why the timing matters so much. If you miss your window and don't have other qualifying coverage, you can face a late enrollment penalty:
- Part B: your premium goes up 10% for each full 12 months you could have had it but didn't — and that higher premium sticks for as long as you have Part B.
- Part D (drug coverage): a separate penalty added to your premium for going without creditable drug coverage, also ongoing.
These aren't one-time fees. They're permanent. That's the part people don't realize until it's too late.
Still working at 65? The rules change
If you (or your spouse) are still working and have health coverage through an employer with more than 20 employees, you can usually take premium-free Part A and delay Part B without any penalty. When that job or coverage ends, you get a Special Enrollment Period to sign up.
But if your employer has fewer than 20 employees, or you're on COBRA, retiree coverage, TRICARE, or a Marketplace (ACA) plan, the rules are different — and those plans usually do not let you delay Part B safely. This is exactly the kind of situation worth a five-minute phone call before you make a move.
The bottom line
Mark your calendar three months before your 65th birthday. If you're not on Social Security, plan to actively enroll. And if you're still working, don't assume — confirm. Get the timing right and the rest of Medicare gets a whole lot less stressful.
Once your timing is set, the next step is choosing your coverage. If you're here in central Kentucky, my local Medicare guide for Lexington walks through your 2026 options, costs, and hospital networks in plain English.
Turning 65 soon? You can grab the free Kentucky Medicare guide. Or have a local agent walk you through your enrollment window so you don’t miss a deadline.
Quick recap
Test what you learned
Five quick questions — pick an answer to see if you're right, and why.
Want help getting your timing right?
I'm a local Kentucky agent. No call center, no pressure, no cost — just a straight answer for your situation.
Or call me directly: (859) 618-6443
This article is general information, not advice for your specific situation, and Medicare rules can change. Tyler Insurance Group is not connected with or endorsed by the United States government or the federal Medicare program. For complete details on all your options, contact Medicare.gov or 1-800-MEDICARE.