Medicare Part B Premium Explained
How much Part B costs and what affects your monthly premium
Written by Walter Johnson, Licensed Insurance Agent
This article is for educational purposes only and is not a solicitation for insurance
OFFICIAL 2026 EDUCATIONAL RESOURCE BY WALTER JOHNSON, LICENSED INSURANCE AGENT (CA #0J15814).
How much Part B costs and what affects your monthly premium
Written by Walter Johnson, Licensed Insurance Agent
This article is for educational purposes only and is not a solicitation for insurance
Learn how the Medicare Part B premium works, including standard costs, income-based adjustments, and what you can expect to pay each month.
What Is the Medicare Part B Premium?
The Medicare Part B premium is the monthly amount most people pay for outpatient medical coverage. This includes services such as doctor visits, preventive care, and diagnostic testing.
Part B is optional, but most people enroll because it covers essential healthcare services.
👉 Start here: Medicare Parts A, B, C, and D Explained
How Much Is the Part B Premium?
Medicare sets a standard monthly premium for Part B each year.
Most people pay this standard amount, but your actual premium may vary depending on your income.
In general:
Most people pay the standard premium
Higher-income individuals may pay more
👉 Learn more: How Much Does Medicare Cost at Age 65?
Income-Related Monthly Adjustment Amount (IRMAA)
If your income is above a certain level, you may pay more for Part B.
This is called the Income-Related Monthly Adjustment Amount (IRMAA).
IRMAA:
Increases your monthly premium
Is based on your income from two years prior
Applies to both Part B and Part D
👉 Learn more: Medicare Costs
When Do You Start Paying the Part B Premium?
You typically begin paying your Part B premium when your coverage starts.
This is usually:
When you enroll during your Initial Enrollment Period
Automatically if you are already receiving Social Security benefits
👉 Learn more: Medicare Initial Enrollment Period Explained
How You Pay the Part B Premium
There are several ways to pay your Part B premium:
Automatically deducted from Social Security benefits
Direct billing from Medicare
Electronic payment options
Most people have their premium deducted automatically.
Can Your Part B Premium Change?
Yes, your premium can change over time.
Reasons include:
Annual updates to Medicare costs
Changes in your income
Adjustments based on IRMAA
It’s important to review your premium each year.
What Does the Part B Premium Cover?
Your Part B premium helps pay for coverage including:
Doctor visits
Preventive services
Lab tests and screenings
Outpatient care
Durable medical equipment
Even with the premium, you will still have additional out-of-pocket costs.
How to Lower Your Medicare Costs
While you cannot always reduce your Part B premium, you may be able to manage overall costs by:
Reviewing your coverage options
Considering Medicare Advantage plans
Understanding income-related adjustments
👉 Learn more: Medicare Advantage (Part C) Explained
Why Understanding the Part B Premium Matters
The Part B premium is one of the most common Medicare costs.
Understanding how it works helps you:
plan your monthly budget
avoid surprises
make informed coverage decisions
Next Step
Now that you understand the Part B premium, the next step is learning about deductibles and other out-of-pocket costs.
👉 Continue to: Medicare Deductibles Explained
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