Did You Get Charged the Right Medicare Part B Premium? Millions May Have Paid Too Much

If your parent signed up for Medicare Part B during 2023 or 2024 and got hit with a late-enrollment penalty, there's a decent chance they shouldn't have been charged it at all.

According to a recent audit from the Social Security Administration's watchdog office, Social Security workers made processing errors that led to about 12,000 people being incorrectly charged late-enrollment penalties — totaling roughly $12 million. These aren't small mistakes. They're penalties that stick around for as long as someone has Part B, which for most people means the rest of their life.

What went wrong

The auditors looked at a random sample of 200 Medicare Part B applications from people who enrolled during the 2023 and 2024 General Enrollment Periods and got penalized for enrolling late. Twenty-three of those 200 were processed incorrectly — about 11 percent.

The mistakes? Social Security employees didn't consistently account for things that should have excused the late enrollment:

• Whether someone had group health coverage through work (theirs or a spouse's), which would make late enrollment totally fine

• Whether the person met lawful presence or residency requirements, which affect eligibility timing

• Whether they qualified for a special enrollment period or other exception

In other words, the system charged people penalties for being late when they weren't actually late — or when they had legitimate reasons for enrolling when they did.

Why this matters to you

Medicare Part B late-enrollment penalties aren't one-time fees. They're permanent premium increases — 10 percent added for every 12-month period someone was eligible but didn't enroll. If your parent was incorrectly penalized, they've been overpaying every single month since they enrolled. And they'll keep overpaying unless someone catches it.

The truth is, most people don't scrutinize their Medicare statements closely enough to notice. The audit found that the notices Medicare sends don't clearly break out penalty amounts — they just show a total premium. So unless you're comparing your parent's premium to the standard rate, you might not realize there's a penalty baked in at all, let alone whether it's correct.

What to do

If your parent enrolled in Part B during 2023 or 2024 and is paying a late-enrollment penalty, pull out their Medicare statements. Look for any mention of a penalty or compare their premium to the standard Part B rate (it's been widely published each year).

If they're being penalized and you think they shouldn't be — maybe they had employer coverage, or there was confusion about their eligibility timing — it's worth appealing. You can request a redetermination by contacting Social Security. Be prepared to provide documentation: proof of prior coverage, employment records, anything that shows why the penalty shouldn't apply.

The audit notes that Social Security agreed with the recommendations to fix these processing errors and take corrective action on affected accounts. But I wouldn't wait for them to proactively find your parent's case. Government correction processes are slow and inconsistent. If you think there's an error, you need to raise it yourself.

The bigger issue

What gets me about this isn't just the dollar amount — though $12 million is nothing to shrug at. It's that these penalties are designed to be punitive and permanent, which means the stakes for getting the processing right are high. When 11 percent of applications in a sample are bungled, that's not a rounding error. That's a systems problem.

And because the notices don't clearly explain what you're being charged or why, beneficiaries have almost no way to catch these mistakes on their own unless they already understand Medicare rules well enough to know something's off.

So: check the statements. If something looks wrong, don't assume the government got it right. They didn't for thousands of other people.