What the Annual Enrollment Period is

The Medicare Annual Enrollment Period — almost everyone shortens it to AEP — runs from October 15 to December 7 every year, and anything you change inside it takes effect on January 1. It is the one stretch of the year when essentially everyone already on Medicare can rearrange how their coverage is put together, without needing a reason and without answering health questions.

That is the mechanical answer. The useful answer, if you live in York County, has a second half: the list you are choosing from is set by your address. Medicare Advantage and Part D availability varies by county and ZIP code, so the comparison a reader in Rock Hill, Fort Mill, Tega Cay, Indian Land or York runs each fall is not the same comparison a co-worker across the state line is running. Same dates, different list.

What you can do between October 15 and December 7

You do not have to do any of them. Staying put is a legitimate outcome and often the right one — but it should be a choice you made after looking, not something that happened because December 7 went by while the envelope sat on the kitchen counter.

What the Annual Enrollment Period is not

It is not your first sign-up window

If you are coming up on 65 and have never been on Medicare, AEP is not your entry point. Your first window is the 7-month Initial Enrollment Period built around your birthday month — the three months before it, the month itself, and the three months after. When you can enroll in Medicare sets those windows out in order, including the 8-month Special Enrollment Period that may open instead if you are still working.

It is not a window for buying Medicare Supplement coverage

AEP has nothing to do with Medigap, and this is where people get hurt. The Medigap Open Enrollment Period is a separate, one-time window: six months beginning the first month you are both 65 or older and enrolled in Part B. Once it closes, insurers can generally use medical underwriting. Assuming you can pick up a supplement next October is a costly assumption, and in South Carolina it lands harder on people who came to Medicare before 65, because this state has no law requiring private insurers to sell Medigap under 65.

It is not the Medicare Advantage Open Enrollment Period

Two different windows with similar names. Medicare Advantage Open Enrollment runs January 1 to March 31, it is only open to people already enrolled in a Medicare Advantage plan, and it allows one change — to a different Medicare Advantage plan, or back to Original Medicare with a drug plan. It is a repair window, not a shopping window.

Why it matters even when nothing is wrong

The most common reason to make a change in the fall is not that something went wrong with you. It is that something changed in the plan. Drug lists get reworked, a medication moves to a different tier, cost-sharing shifts, and provider networks are rebuilt for the new year. Your plan has to tell you about all of it in advance, in a letter called the Annual Notice of Change, which lands in the fall precisely so you can read it before December 7.

So the honest framing of AEP is not "shop around for something better." It is "find out whether what you already have is still the same thing you chose." Those are different exercises, and the second one takes about twenty minutes.

Why this window lands differently on the Charlotte line

Large numbers of people in Rock Hill, Fort Mill, Tega Cay and Indian Land commute into North Carolina for work, and over the years their care has followed. It is completely ordinary here to have a primary care doctor near home in South Carolina and a cardiologist, orthopedist or oncologist in Charlotte — one household, two states, one plan expected to cover both.

A network change in a plan document is a quiet thing. A network change that drops the Charlotte half of your care while leaving the South Carolina half intact does not announce itself; you find out at the first appointment in February. The fall review is the only scheduled opportunity to catch that in advance, and for a cross-border household it is worth more than it is to almost anyone else in the state. Our Medicare guide for Rock Hill goes further into what that looks like locally.

How to run the comparison properly

A real comparison is tedious and specific. It is not a glance at premiums.

  • Your doctors, by name, on both sides of the line. Not the health system — the individual provider, checked against the specific plan for the coming year.
  • Your medications, by name and dose. A drug that was covered comfortably this year can sit on a different tier in January.
  • Your pharmacy. Preferred pricing differs by pharmacy, which matters when one option is near home and the other is on the commute.
  • The whole year, not the monthly premium. Deductibles, copays, the out-of-pocket maximum on a Medicare Advantage plan, and what a bad year would actually cost.

Two federal numbers anchor the drug side of that math. Your out-of-pocket spending on covered prescriptions is capped at $2,100 in 2026 and $2,400 in 2027, and a plan's drug deductible can be no higher than $615 in 2026 or $700 in 2027. Those limits apply everywhere; everything inside them is set plan by plan.

About the noise

From late September the mailers arrive in stacks and the television advertising becomes relentless. None of it is tailored to your address, your doctors or your prescriptions, and none of it is urgent in the way it sounds. There is no queue and nothing runs out on a first-come basis; December 7 is simply a deadline. If a pitch is built on pressure rather than on your own list of providers and drugs, that tells you something about the pitch. Choosing a Medicare agent covers what to demand of anyone you talk to this time of year.

How The Jordan Insurance Agency helps

The Jordan Insurance Agency serves South Carolina from our Charlotte office at 3540 Toringdon Way, Suite 200, Charlotte, NC 28277, (704) 926-7565, Monday through Friday, 9:00 AM to 5:00 PM ET. We are straightforward about that: the office is across the state line, and most of our South Carolina clients handle this by phone or video rather than driving up. It suits the work, which is mostly reading documents together.

What we do each fall is specific. We read your Annual Notice of Change with you, take your doctors on both sides of the line, your medications and your pharmacy, and test them against the plans actually offered at your South Carolina address — not at an address a few miles north. Often the conclusion is that you should stay where you are, and we will say so plainly; there is no version of this where we talk you into a change you do not need. We never tell you that you qualify or do not qualify for something — that gets checked. A consultation with a licensed agent is free.