He Kept Driving for Uber and Paying for Health Insurance. Medicare Could Still Add a 10% Late-Enrollment Penalty

Take a man who just turned 65 and drives for Uber (NYSE:UBER | UBER Price Prediction) most weekdays. He pays hundreds of dollars a month for a health plan he bought himself. He figures a working man with insurance can put off Part B, the way his old coworkers did when they stayed on their company plans. To him, that logic feels solid. While the scenario is hypothetical, Medicare reads his situation differently, and that difference can cost him money every month for the rest of his life.

If you hold a payroll job with a group health plan, or your spouse does, you stand on stronger ground. If your coverage comes from a policy you bought on the Marketplace or directly from an insurer, this rule hits you.

Group Coverage From a Current Job Is the Real Medicare Test

Medicare cares about where your coverage comes from. The job-based Part B Special Enrollment Period requires qualifying employer group coverage tied to your current work or your spouse’s. A paycheck alone does not qualify, and neither does an insurance card alone.

His individual policy remains an individual policy no matter how many fares pay the premium. His deadline is the end of his Initial Enrollment Period, the seven-month window that generally starts three months before his birthday month and ends three months after it. Since he just turned 65, he still has time to enroll without a penalty. If he lets that window close, his individual coverage won’t protect him from a late-enrollment surcharge.

Penalty Builds in 12-Month Blocks

That same Medicare.gov page lays out the math. Without a Special Enrollment Period, he owes an extra 10% for each full 12-month period he could have signed up for Part B and didn’t. That surcharge sits on top of the standard Part B premium, which is $202.90 a month in 2026.

The percentage applies to a premium that resets every January, so the dollar cost of the penalty rises whenever the base premium rises. According to the Centers for Medicare & Medicaid Services (CMS), the standard premium rose $17.90 from $185.00 in 2025. A penalty tied to that base grows with it.

Medicare usually charges the penalty for as long as he has Part B. For most people, that means for life. Each extra full year he drives without enrolling adds another block. One fact could change the outcome. If he is covered through his spouse’s group plan at her current job, the Special Enrollment Period may protect him.

COBRA and Retiree Plans Trip Up Insured People Too

He has plenty of company. COBRA lets eligible workers keep their job-based coverage for a time after leaving. But for people 65 or older, Medicare generally pays before COBRA or retiree coverage. Those plans may calculate their share as though Medicare had already paid, leaving someone without Part B to cover the difference. Missing the enrollment deadline can add a lasting penalty to that immediate gap.

Neither COBRA nor retiree coverage extends the job-based enrollment deadline. Someone who qualified to delay Part B generally has eight months to enroll after the job or its group coverage ends, whichever happens first. Choosing COBRA doesn’t restart that clock. If employment or coverage ends during the Initial Enrollment Period, that initial window generally remains the deadline. Having insurance and being safe to delay Medicare are two separate tests.

Medicare’s sticker price is only the opening bid, and a Part B late-enrollment penalty can silently follow retirees for life. We listed other costs, including IRMAA and the coverage gaps that trap new enrollees, in a free guide to Medicare’s hidden bills.

Ask One Question Before Turning Down Part B

Before you decline Part B, ask this. Is my insurance an employer group plan tied to my current work or my spouse’s? Anything short of a clear yes points toward enrolling.

• Get the answer in writing. Ask the benefits office to confirm the coverage dates and whether the plan pays first after 65. With employers of fewer than 20 employees, Medicare generally pays first, so delaying Part B can leave bills unpaid even if you qualify for a Special Enrollment Period. Keep proof of employment and coverage. Medicare’s Request for Employment Information form is commonly used when enrolling later.
• If you already missed your window, ask Social Security whether you qualify for a Special Enrollment Period. Otherwise, the General Enrollment Period runs January 1 through March 31, with coverage starting the following month. Fall open enrollment doesn’t reopen your Part B signup window.
• Remember the Medigap link. Your six-month Medigap open enrollment window starts the first month you’re 65 or older and have Part B. During that window, insurers can’t deny you a policy they sell to someone in your situation or charge more because of your health. Delaying Part B delays that window; it doesn’t use it up. Some states offer additional protections.

Clock Keeps Running Behind the Wheel

A gig worker can have health insurance and steady work and still miss Medicare’s deadline. This driver has time to avoid the penalty altogether because he just turned 65. Enrolling before his initial window closes keeps that mistake off his future bills. His fares may pay the insurance premium, but they don’t buy him more time to sign up for Part B.

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