Index/Topics/Medicare Parts B and D

Medicare Parts B and D

Medicare Parts B and D premiums are affected by the IRMAA surcharge.

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6 results
Jan 16, 2026
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How do Roth conversions affect Medicare IRMAA and Part B/Part D premiums?

Roth conversions count as taxable income in the year of the conversion and therefore can push a beneficiary’s modified adjusted gross income (MAGI) above IRMAA thresholds, triggering higher Medicare P...

Jan 23, 2026
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How do RMDs affect Medicare IRMAA and Social Security benefit taxation calculations?

Required Minimum Distributions ( and therefore raise the Modified Adjusted Gross Income (MAGI) that the uses to determine Medicare IRMAA surcharges, potentially moving beneficiaries into higher for Pa...

Jan 16, 2026
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Which IRMAA brackets (and percentage surcharges) did the SSA publish for 2026 and how did they change from 2025?

The Social Security Administration (via CMS/SSA notices reported across Medicare coverage guidance) set five IRMAA income brackets for 2026 with the first threshold at $109,000 (single) / $218,000 (ma...

Jan 27, 2026

How does Modified Adjusted Gross Income (MAGI) differ from AGI for IRMAA calculations?

Modified Adjusted Gross Income () for IRMAA purposes is not a mysterious new tax base but a simple tweak to the Adjusted Gross Income (AGI) reported on a tax return: for Medicare’s Income-Related Mont...

Jan 16, 2026

How do IRMAA thresholds change year to year and where can retirees find official future values?

IRMAA thresholds are adjusted annually for inflation for most brackets, using a CPI‑U comparison calculated each fall, and beneficiaries are assigned surcharges based on their MAGI from two years prio...

Jan 10, 2026

What income thresholds trigger each IRMAA bracket for 2025 Medicare Part B and Part D?

The IRMAA surcharge for Medicare Parts B and D in 2025 is applied when a beneficiary’s modified adjusted gross income (MAGI) from 2023 exceeds statutory thresholds set by the Social Security Administr...