Medical Expense✓ Verified · outline & fact-checked · Sep 2026Difficulty 2/5
Medicare Part B monthly premiums are:
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Answer & full 3-part explanation (select an option above, or peek)
Why A is correct
All Part B beneficiaries pay a monthly premium, and higher-income beneficiaries pay more through the income-related monthly adjustment amount (IRMAA), which is added to the standard premium based on modified adjusted gross income. The standard premium is set federally, and the income tiers are determined by IRS tax data. This income-sensitive structure is part of the Part B premium rules examined under AH-III.D.1d, which also covers the deductible, the 80/20 coinsurance structure, and the absence of an annual out-of-pocket cap.
Why the other options are wrong
- B) Part B premiums are not waived for anyone; all enrollees pay them.
- C) The premium varies by income, so it is not an identical amount for all beneficiaries.
- D) Part B premiums are set by the federal government, not by the individual states.
Memory hook
Richer pays more: Part B premiums rise with income, never drop to zero.