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 happy couple shopping with a full cart at a warehouse club in 2026. Top 10 Sam's Club Deals You Can't Ignore in 2026
  • A couple shopping for high-end deals at a modern warehouse store. 12 Costco Deals Shoppers Are Jumping on for 2026
  • A high-end desk setup with a Social Security card and a gold pen, representing presidential financial benefits. Is Trump on Social Security? A Look at Presidential Benefits
  • 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

Newsletter

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

Related Articles

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

Amazon Prime in 2026 is more than just shipping. Discover the best perks you might…

Read More →
work

No Tech Skills? These 10 Remote Jobs Are Perfect for You

9. Virtual Recruiter A recruiter is an employer who helps a company fill available positions.…

Read More →
stimulus money by Christmas

Could We See the $2,000 Checks by Christmas?

Income Qualifications and What Counts as Middle Class Based on Trump’s comments, the $2,000 dividend…

Read More →
small business

Top 7 Best Small Business Ideas to Start After 50

7. Start an eCommerce Store If none of the options above appeal to you, maybe…

Read More →
Saving Tips

5 Best Retirement Saving Tips for People Under 44 Years Old

A woman gazes thoughtfully out a sunlit cafe window, reflecting on her future while enjoying…

Read More →
retirement contributions 2023

Ready to Max Out Your 401(k) in 2023? Here Are The Steps!

Don’t stick with the default savings rate Lots of employees are usually enrolled in their…

Read More →
most expensive antiques

Top 7 Most Expensive Antiques You Probably Own Too

7. Vinyl records Vinyl records are one of the most expensive antiques, and there is…

Read More →
stimulus checks

Stimulus Checks 2023: Which States Are Still Sending Payments?

Pennsylvania Who’s Eligible: To qualify for a stimulus check under Pennsylvania’s “Property Tax/Rent Rebate” program,…

Read More →
small towns to retire in

5 Amazing Small Towns to Retire In for Only $2,300 a Month

West Virginia: Wheeling Small towns to retire in are all over the United States, but…

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.