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Index/Topics/Medicare Parts B and D

Medicare Parts B and D

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

Fact-Checks

4 results
Jan 16, 2026
Most Viewed

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 16, 2026

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 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...

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