{"data":{"id":"us/20-cfr-418.1322","jurisdiction":"us","citation":"20 CFR 418.1322","heading":"How will a Medicare prescription drug coverage income-related monthly adjustment amount determination for the effective year affect your Medicare Part B?","body":"If we make an income-related monthly adjustment amount determination for you for the effective year under subpart C of this part (Medicare Prescription Drug Coverage Income-Related Monthly Adjustment Amount), we will apply that income-related monthly adjustment amount determination under this subpart to determine your Part D income-related monthly adjustment amount for the same effective year. Therefore, if you become enrolled in Medicare Part B in the effective year after we make an income-related monthly adjustment amount determination about your Medicare prescription drug coverage, the income-related monthly adjustment amount determination for your Medicare prescription drug coverage will also be used to determine your Medicare Part B income-related monthly adjustment amount. Any change in your net benefit due will be accompanied by a letter explaining the change in your net benefit and your right to appeal the change.","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":"51ce43cb5f4a667e3407545398403d507e15e738b14d2f3d43ed099095575658","source_id":"us-cfr","stale":true,"prev":"us/20-cfr-418.1320","next":"us/20-cfr-418.1325"},"notice":"GroundRules: Original legal text. Not legal advice."}