{"data":{"id":"us/20-cfr-418.1125","jurisdiction":"us","citation":"20 CFR 418.1125","heading":"How will the income-related monthly adjustment amount affect your total Medicare Part B premium?","body":"(a) If you must pay an income-related monthly adjustment amount, your total Medicare Part B premium will be the sum of:\n(1) The Medicare Part B standard monthly premium, determined using the rules in 42 CFR 408.20; plus\n(2) Any applicable increase in the Medicare Part B standard monthly premium as described in 42 CFR 408.22; plus\n(3) Your income-related monthly adjustment amount.\n(b) The nonstandard Medicare Part B premium amount described in 42 CFR 408.20 does not apply to individuals who must pay an income-related monthly adjustment amount. Such individuals must pay the full Medicare Part B standard monthly premium plus any applicable penalties for late enrollment or reenrollment plus the income-related adjustment.","path":["Title 20—Employees' Benefits","CHAPTER III—SOCIAL SECURITY ADMINISTRATION","PART 418—MEDICARE SUBSIDIES","Subpart B—Medicare Part B Income-Related Monthly Adjustment Amount"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-20.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:45Z","sha256":"f38661c153972325181e5e9019221ee45301c66e4b79dd5a720d638244b3f6a8","source_id":"us-cfr","stale":true,"prev":"us/20-cfr-418.1120","next":"us/20-cfr-418.1130"},"notice":"GroundRules: Original legal text. Not legal advice."}