How much is Medicare Part B's monthly premium in 2025?

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Accepted Answer

Part B’s monthly premium is sizable—$185 in 2025 (which translates to $2,220 for the year). It can triple to as much as $628.90 a month (about $7,547 for the year) if you’re a high-income beneficiary hit with the so-called IRMAA surcharge; IRMAA stands for Income-Related Monthly Adjustment Amount. For 2025, IRMAA kicks in if your 2023 income was over $106,000 and you’re single; above $212,000 for married couples filing joint tax returns.

What does Medicare Part B cover? Here’s a rundown of costs and benefits