Make money work for you!

  • Home
  • Personal Finance
  • Budgeting
  • Shopping
  • Taxes

An Introduction to Medicare: Parts A, B, C, and D Explained

August 24, 2025 · Personal Finance

Photo-realistic, senior-friendly scene that visually introduces the section titled 'Key Enrollment Periods: When to Sign Up'.

Key Enrollment Periods: When to Sign Up

Timing is everything with Medicare. Enrolling at the right time ensures your coverage starts when you need it and helps you avoid lifelong penalties. There are several specific windows of time, called enrollment periods, for signing up.

Initial Enrollment Period (IEP): This is your first and most important chance to sign up. It is a 7-month period that starts 3 months before your 65th birthday month, includes your birthday month, and ends 3 months after. It is the ideal time to enroll in Parts A and B, and also to choose a Part C or Part D plan.

Special Enrollment Period (SEP): If you or your spouse are still working past 65 and have health coverage through that current job, you may be able to delay enrolling in Part B without penalty. When that employer coverage ends, you will get an 8-month Special Enrollment Period to sign up for Part B.

General Enrollment Period (GEP): If you missed your IEP and do not qualify for an SEP, you can sign up for Parts A and B during the General Enrollment Period, which runs from January 1 to March 31 each year. Your coverage would then start on July 1. You may have to pay a late enrollment penalty if you use this period.

Annual Open Enrollment Period (AEP): This is your yearly chance to review and change your coverage. It runs from October 15 to December 7. During this time, you can switch from Original Medicare to a Medicare Advantage plan, switch from one Medicare Advantage plan to another, or join, drop, or switch a Part D prescription drug plan. Changes you make take effect on January 1 of the following year.

Medicare Advantage Open Enrollment Period: This runs from January 1 to March 31. If you are already in a Medicare Advantage plan, this period allows you to switch to a different Medicare Advantage plan or switch back to Original Medicare (and select a Part D plan).

Keeping these dates in mind is a critical part of managing your healthcare. Mark your calendar for your Initial Enrollment Period—it is the smoothest on-ramp to your Medicare coverage.

Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Share this article

Facebook Twitter Pinterest LinkedIn Email

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Search

Latest Posts

  • A person thoughtfully choosing a card from their wallet at a checkout counter. 5 Places to Avoid Using Your Debit Card and 3 Safe Spots
  • A mature couple looking at a tablet together on a sunny patio, appearing confident about their financial future. Married or Divorced? Don't Miss This Social Security Tip That Could Increase Your Checks
  • A confident woman working on her taxes at a bright, organized home office desk. IRS Alert: 6 Mistakes That Could Inflate Your Tax Bill
  • A woman looks thoughtfully at a tablet in a modern kitchen, representing financial planning for rising costs. Unfortunately, We'll Pay More for These 6 Things in 2026
  • A woman smiling at her phone in a bright living room with a delivery package on the table. The Best Amazon Prime Perks You Should Be Using in 2026
  • A woman smiling at her phone in a bright kitchen, representing the relief of receiving a tax refund. When Will Your 2026 Tax Refund Arrive? IRS Timeline Explained
  • A shopper looking at a grocery checkout screen with the New York City skyline in the background. 10 US Cities Where Grocery Prices Are Highest in 2026
  • A person reviewing tax documents on a laptop in a bright, modern home office. Tax Season Warning: How IRS Budget Cuts May Affect Your Refund
  • Editorial illustration of a gold gavel striking tax forms on a navy background. Trump's $10B IRS Lawsuit Could Upend the 2026 Tax Filing Season
  • IRS refund Tax Refund Alert: Americans May See a $1,000 Increase in 2026

Newsletter

Get money-saving tips and personal finance advice delivered to your inbox.

Related Articles

clothes product

Budget Dressing: How to Save Money on Clothes (10 Tips)

A young man thoughtfully checks a budget app on his phone while browsing through racks…

Read More →
annuity

Is an Annuity a Good Idea if You Don’t Have High Net Worth?

A woman holds a glowing shield-shaped puzzle piece, illustrating how the right financial security fits…

Read More →
Antique Selling Platform

Top 7 Best Antique Selling Platforms to Get the Most Money

Timeless treasures like these leather-bound books and silver pocket watch are perfect candidates for rehoming…

Read More →
PayPal

7 PayPal Scams You Could Be Tricked Into

Digital payment systems such as PayPal have become more popular than ever. Even so, they…

Read More →
cost of living

Top 11 US States Rated by the Cost of Living

New Jersey Another not-so-friendly state for retirement is New Jersey. The state marks a high…

Read More →
trip

6 Ways to Save $1,000 on Your Next Trip

Maximize your budget by pairing a passport and premium travel credit card for significant savings…

Read More →
A senior citizen sits at a desk reviewing financial documents, surrounded by elements suggesting financial security and well-being.

5 Smart Ways to Use Your Stimulus Check for a Better Future

A Final Thought: Your Plan, Your Future Receiving a stimulus check provides a unique moment…

Read More →
documents you should shred

9 Documents You Should Shred for Your Safety

Use multi-cut scissors You don’t own a shredding machine, and you need a fast method…

Read More →
budget

How to Create a Budget for Anything in 6 Easy Steps

Creating a budget has never been an easy task, and sometimes it might become a…

Read More →
The Money Place

Make money work for you!

Inedit Agency S.R.L.
Bucharest, Romania

contact@ineditagency.com

Explore

  • Subscribe
  • Unsubscribe
  • Newsletter
  • Terms and Conditions
  • Do not sell my personal information
  • Privacy Policy
  • Contact

Categories

  • Budgeting
  • Personal Finance
  • Shopping
  • Taxes

© 2026 The Money Place. All rights reserved.