Income Limits For Medicare Premiums 2025. Irmaa surcharges can increase part b premiums up to $628.90 and add part d surcharges up to. Base medicare part b premium for 2025 is $174.70 for those with magi under $106,000.

Medicare part b premiums, which many retirees have deducted from their social security checks, are set to increase in 2025. Medicare part b is essential for medical coverage, and its standard monthly premium in 2025 is $185.00.