{"data":{"id":"us/42-cfr-408.28","jurisdiction":"us","citation":"42 CFR 408.28","heading":"Increased premiums due to the income-related monthly adjustment amount (IRMAA).","body":"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.","path":["Title 42—Public Health","CHAPTER IV—CENTERS FOR MEDICARE \u0026 MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER B—MEDICARE PROGRAM","PART 408—PREMIUMS FOR SUPPLEMENTARY MEDICAL INSURANCE","Subpart B—Amount of Monthly Premiums"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-42.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:11Z","sha256":"052f4486835529468d9f2710264bf68df9510effe3c1b2369336e735ae606788","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-408.27","next":"us/42-cfr-408.40"},"notice":"GroundRules: Original legal text. Not legal advice."}