CFR > Title 42 - Public Health > CHAPTER IV—CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER B—MEDICARE PROGRAM (parts 405 to 426) > PART 408—PREMIUMS FOR SUPPLEMENTARY MEDICAL INSURANCE > SUBPART B—Amount of Monthly Premiums (§408.20 to §408.28) > 408.28—Increased premiums due to the income-related monthly adjustment amount (IRMAA).

408.28—Increased premiums due to the income-related monthly adjustment amount (IRMAA).

Beginning January 1, 2007, Medicare beneficiaries must pay an income-related monthly adjustment amount in addition to the Part B (SMI) standard monthly premium, plus any applicable increase for late enrollment or reenrollment, if the beneficiary's modified adjusted gross income exceeds the threshold amounts specified in 20 CFR 418.1115.
[73 FR 36469, June 27, 2008]