For most people, turning 65 is the first time Medicare stops being an abstraction and becomes a set of real, time-sensitive decisions. Unlike the health plan you had through an employer — where open enrollment came around once a year and a missed deadline meant waiting a few months — Medicare’s deadlines can follow you for life. Sign up a little late for the wrong reason and you can owe a penalty on every premium from then on.
The good news is that the rules, once you see them laid out, are not complicated. There is a seven-month window around your 65th birthday, a short list of parts to understand, one big either/or decision about how you get your coverage, and a handful of traps that catch people who assume Medicare works like their old job’s insurance. This guide walks a South Florida reader through all of it — the timeline, the 2026 costs, and what to do now — in the order it actually matters.
A quick, important note before we start: we are a licensed independent brokerage, not the government. Medicare is a federal program, and nothing here is connected with or endorsed by the U.S. government or the federal Medicare program. Our job is to translate the rules into plain language and help you choose well.
Key takeaways
- Your Initial Enrollment Period (IEP) is a 7-month window — the 3 months before your 65th-birthday month, that month, and the 3 months after.1
- Miss it without other creditable coverage and the Part B late penalty is 10% for every 12 months you could have enrolled but didn’t — and it lasts as long as you have Medicare.2
- In 2026, the standard Part B premium is $202.90/month and the annual Part B deductible is $283; higher earners pay an income surcharge (IRMAA).36
- The big fork is Original Medicare + a Medigap policy vs. a Medicare Advantage (Part C) plan — different costs, networks, and trade-offs.
- If you’re still working at 65 with qualifying employer coverage, you may be able to delay Part B penalty-free using a Special Enrollment Period — but the rules are specific.4
1. Medicare in plain English: Parts A, B, C, and D
Medicare is built from four parts, and almost every decision you’ll make comes down to how you combine them.
- Part A (hospital insurance) covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people get Part A premium-free because they (or a spouse) paid Medicare taxes for at least 10 years — 40 quarters — of work.4
- Part B (medical insurance) covers doctor visits, outpatient care, preventive services, lab tests, and durable medical equipment. Part B has a monthly premium (see 2026 costs below).4
- Part C (Medicare Advantage) is a private-plan alternative that bundles Part A and Part B — and usually Part D drug coverage — into one plan, often with extras like dental or vision. You still pay your Part B premium.
- Part D (prescription drug coverage) is private drug coverage you add on. It has its own premium and its own late-enrollment penalty if you go without creditable drug coverage.
Together, Part A and Part B are called Original Medicare. From there you either stay with Original Medicare and add a Medigap (Medicare Supplement) policy plus a standalone Part D plan, or you choose a Medicare Advantage plan that rolls it together. That fork is the single most consequential choice you’ll make, and we’ll come back to it.
“Original Medicare” = Part A + Part B
When people say “just Medicare,” they usually mean Original Medicare (Parts A and B). By itself it has no out-of-pocket maximum and no drug coverage — which is exactly why most people add either a Medigap policy plus a Part D plan, or choose a Medicare Advantage plan instead. Deciding how to fill those gaps is the real work of turning 65.
2. Your Initial Enrollment Period: the 7-month window
The most important date on your Medicare calendar is your Initial Enrollment Period (IEP). It is a seven-month window built around the month you turn 65: the three months before your birthday month, your birthday month itself, and the three months after.1
So if your 65th birthday is in September, your IEP runs from June 1 through December 31. During that window you can sign up for Part A, Part B, a Part D drug plan, and — if you choose that route — a Medicare Advantage plan.
Sign up early in the window
Enrolling in the first three months of your IEP — before your birthday month — is the smoothest path, because it lets your coverage begin the month you turn 65 with no gap. Wait until your birthday month or later and your start date slides back, which can leave you briefly uncovered. Early is almost always better.
3. When your coverage actually starts
A detail that trips people up: signing up and being covered are two different dates. If you enroll during the first three months of your IEP, your coverage starts the first day of your birthday month (or the month before, if your birthday is on the 1st). If you enroll during your birthday month or the three months after, your coverage now generally begins the first day of the month after you sign up.1
That last point reflects a rule change that took effect in 2023: Medicare eliminated the old delayed start dates that could leave new enrollees waiting months for coverage. Now, later sign-ups start the following month instead of being pushed far out.5 It’s a genuine improvement — but the cleanest outcome is still to enroll early so coverage lines up with your birthday.
4. If you miss it: the GEP and the lifetime penalties
What happens if your seven-month window closes and you didn’t sign up — and you didn’t have other qualifying coverage? Two things: you have to wait for a limited enrollment window, and you may owe a penalty that never goes away.
The General Enrollment Period
If you miss your IEP, you can generally sign up during the General Enrollment Period (GEP), which runs January 1 through March 31 each year. Since the 2023 rule change, coverage from a GEP sign-up begins the first of the month after you enroll — no longer the old July 1 delay.5 Still, a GEP sign-up can mean months without coverage between your missed window and your new start date.
The Part B late-enrollment penalty
This is the expensive one. If you don’t enroll in Part B when first eligible and you don’t have qualifying coverage (like an employer plan), your monthly Part B premium can rise 10% for each full 12-month period you could have had Part B but didn’t — and you pay that surcharge for as long as you have Medicare.2 Wait three years and that’s a 30% penalty added to every premium, for the rest of your life.
“The Part B penalty isn’t a one-time fee — it’s a surcharge on every premium you’ll pay for the rest of your life. That’s why the enrollment date matters more than almost anything else.”
The Part D late-enrollment penalty
Prescription coverage has its own trap. If you go 63 or more days in a row without Part D or other creditable drug coverage after your IEP, you can owe a Part D late-enrollment penalty — a small percentage of the national base premium multiplied by the number of months you went without, added to your drug-plan premium for as long as you have Part D.2 Even if you take no medications today, enrolling in a low-cost Part D plan on time protects you from this later.
“I’m healthy, I’ll wait” is the costly mistake
The penalties exist precisely to discourage waiting until you’re sick. Skipping Part B or Part D because you feel fine at 65 doesn’t save money — it can add a permanent surcharge to your premiums the moment you do enroll. Unless you have qualifying coverage (see the next section), sign up on time.
5. Do you have to take Medicare at 65?
Not always. Many South Floridians are still working at 65, or covered by a spouse’s plan, and the rules make room for that — if you follow them carefully.
- Still working, employer has 20+ employees. If you have qualifying group coverage through your (or your spouse’s) current employer, you can usually delay Part B without penalty and enroll later through a Special Enrollment Period.4 Many people still take premium-free Part A at 65.
- Special Enrollment Period (SEP). When that employment or group coverage ends, you generally get an 8-month window to enroll in Part B without a late penalty.1 Don’t rely on COBRA or retiree coverage to hold this window open — those do not count as current-employer coverage for this purpose.
- Small employer (fewer than 20 employees). Here Medicare usually becomes the primary payer at 65, so delaying Part B can leave gaps — check before you assume your job’s plan is enough.
This is one of the most common places people make an expensive mistake — either enrolling late when they shouldn’t have delayed, or delaying when their coverage didn’t actually qualify. If you’re working at 65, confirm your situation before your birthday, not after.
6. The big decision: Original Medicare + Medigap vs. Medicare Advantage
Once you’re enrolled, you choose how you get your coverage. This is the fork that shapes your costs, your doctor choices, and your paperwork for years.
| Original Medicare + Medigap + Part D | Medicare Advantage (Part C) | |
|---|---|---|
| Doctors | Any provider in the U.S. that accepts Medicare | Usually a network (HMO/PPO); referrals may apply |
| Monthly cost | Part B + Medigap premium + Part D premium | Part B premium + often a low or $0 plan premium |
| Out-of-pocket | Medigap makes costs highly predictable | Copays/coinsurance up to a yearly maximum |
| Drug coverage | Separate Part D plan you choose | Usually built in |
| Extras (dental/vision) | Not included; bought separately | Often bundled in |
Neither path is universally “better.” Medigap tends to suit people who want to keep any Medicare doctor and prize predictable costs; Medicare Advantage can suit people who are comfortable with a network in exchange for lower premiums and bundled extras. What matters is matching the plan to your doctors, medications, and budget — which is exactly the kind of comparison a licensed agent does with you, at no cost to you.
7. What Medicare costs in 2026
Here are the 2026 numbers that apply to almost everyone, plus the income surcharge that applies to higher earners.
| 2026 item | Amount |
|---|---|
| Standard Part B premium | $202.90 / month3 |
| Part B annual deductible | $2833 |
| Part A premium | $0 for most (40+ quarters of Medicare-taxed work)4 |
| IRMAA (income surcharge) begins above | $109,000 single / $218,000 joint (based on 2024 income)6 |
The income surcharge (IRMAA)
If your income is above the thresholds, you pay an Income-Related Monthly Adjustment Amount (IRMAA) — an extra amount added to your Part B and Part D premiums. For 2026 it kicks in above $109,000 (single) or $218,000 (married filing jointly), and it’s based on your 2024 tax return — Medicare looks back two years.6 At the highest tiers, total Part B premiums can reach several hundred dollars a month. If a one-time event (like selling a home) spiked your 2024 income, you can ask Social Security to reconsider using a life-changing-event form.
8. A South Florida lens
A few things make turning 65 in Broward County a little different from turning 65 elsewhere:
- Plan choice is wide here. South Florida is one of the most competitive Medicare Advantage markets in the country, which means more plans — and more fine print — to compare. More choice is good, but it makes an unbiased comparison more valuable, not less.
- Language matters. Medicare’s rules are complicated in any language. We walk clients through their options in English, French, Creole, and Spanish, so the decision is made in the language you think in.
- Snowbirds and travel. If you split time between Florida and another state or country, the Original-Medicare-plus-Medigap path — which travels nationwide — can matter more than it would for someone who never leaves their county.
One team, four languages
Turning 65 soon? Let’s map your enrollment before the clock runs.
We compare your options across carriers — and explain every step in English, French, Creole, or Spanish, at no cost to you.
9. Your step-by-step timeline
- ~6 months before 65: Figure out your situation. Are you retiring, or working with employer coverage? That single answer decides whether you enroll now or use a Special Enrollment Period later.
- 3 months before your birthday month: Your IEP opens. If you’re not delaying for employer coverage, this is the time to enroll so coverage starts the month you turn 65.
- Decide your path: Original Medicare + Medigap + Part D, or a Medicare Advantage plan. Compare against your actual doctors and prescriptions — not a brochure.
- Don’t skip drug coverage: Enroll in a Part D plan (or a Medicare Advantage plan that includes it) on time, even if you take nothing today, to avoid the Part D penalty.
- If you’re working past 65: Confirm your employer coverage qualifies, take premium-free Part A if it makes sense, and calendar your 8-month SEP for when that coverage ends.
- Mark October 15–December 7: That’s the annual window to review and switch plans every year after — your needs and the plans both change.
10. Frequently asked questions
When exactly can I first sign up for Medicare?
During your Initial Enrollment Period — a seven-month window that starts three months before the month you turn 65, includes your birthday month, and ends three months after. Enrolling in the first three months lets your coverage begin the month you turn 65.
What happens if I don’t sign up at 65?
If you don’t have qualifying coverage (like a current employer’s plan) and you miss your window, you may have to wait for the General Enrollment Period (January 1–March 31) and could owe a Part B late-enrollment penalty of 10% for each 12 months you delayed — a surcharge that lasts as long as you have Medicare.
I’m still working at 65 with insurance. Do I have to enroll?
If your employer (or your spouse’s) has 20 or more employees and you have qualifying group coverage, you can usually delay Part B without penalty and enroll later through an 8-month Special Enrollment Period after that coverage ends. If the employer has fewer than 20 employees, Medicare often becomes primary at 65, so check before delaying. COBRA and retiree coverage do not keep the penalty-free window open.
How much does Medicare cost in 2026?
The standard Part B premium is $202.90 per month with a $283 annual deductible. Most people pay $0 for Part A. Higher earners (above $109,000 single / $218,000 joint, based on 2024 income) pay an IRMAA surcharge. Medigap, Part D, and Medicare Advantage premiums are separate and depend on the plan you choose.
Should I choose Medicare Advantage or a Medigap plan?
It depends on your priorities. Original Medicare with a Medigap policy lets you see any provider that accepts Medicare and makes costs very predictable, but has higher premiums and needs a separate drug plan. Medicare Advantage often has lower premiums and bundled extras but uses a network. The right choice comes from matching a plan to your doctors, medications, and budget — which a licensed agent can do with you at no cost.
Does JCKC charge to help me with Medicare?
No. Like most licensed Medicare brokers, we’re compensated by the insurance carriers when you enroll, so our help comparing and choosing a plan is free to you — and your plan doesn’t cost more for using an agent.
What we'll do for you
JCKC Financial Services is an independent brokerage based in Broward County. We help South Florida families with the financial side of life — Medicare, ACA / Obamacare, life insurance, tax preparation, and notary services — in English, French, Creole, and Spanish. Turning 65 brings a cluster of deadlines and choices; our job is to make sure you hit the windows, avoid the penalties, and land on a plan that fits your doctors and your budget.
Whether you want to confirm your enrollment timeline, weigh Original Medicare with a Medigap policy against a Medicare Advantage plan, sort out how your job’s coverage interacts with Medicare, or simply have someone walk the whole thing with you, we can help — and it costs you nothing to sit down with us.
Don’t wait until the window is closing — schedule a Medicare consultation or call (954) 825-9923. We’ll meet you in the office, online, or in the language you’re most comfortable with.
11. Sources
- Medicare.gov (Centers for Medicare & Medicaid Services). When does Medicare coverage start? / Sign up for Medicare. medicare.gov/basics/get-started-with-medicare/sign-up/when-does-medicare-coverage-start
- Medicare.gov. Part B late enrollment penalty & Part D late enrollment penalty. medicare.gov/basics/costs/medicare-costs
- Centers for Medicare & Medicaid Services. 2026 Medicare Parts A & B Premiums and Deductibles. cms.gov/newsroom/fact-sheets/2026-medicare-parts-b-premiums-and-deductibles
- Centers for Medicare & Medicaid Services. Original Medicare (Part A and B) Eligibility and Enrollment. cms.gov/medicare/enrollment-renewal/original-part-a-b
- National Council on Aging (NCOA). A Closer Look at the Medicare General Enrollment Period. ncoa.org/article/a-closer-look-at-the-medicare-general-enrollment-period
- Kiplinger. Medicare Premiums 2026: IRMAA Brackets and Surcharges for Parts B and D. kiplinger.com/retirement/medicare/medicare-premiums-2026-irmaa-brackets-and-surcharges
Disclaimer: JCKC Financial Services is a licensed independent insurance brokerage that also provides tax preparation and notary services. We are not connected with or endorsed by the U.S. government or the federal Medicare program, and we are not a law firm and do not provide legal advice. Medicare rules, premiums, deductibles, and income thresholds are set by federal law and CMS and may change; the figures here reflect amounts published for 2026 and may be revised. This article is general information only and is not legal, tax, financial, or insurance advice or a substitute for guidance from a licensed professional about your specific situation.