{"data":{"id":"us/20-cfr-418.1301","jurisdiction":"us","citation":"20 CFR 418.1301","heading":"What is an initial determination regarding your income-related monthly adjustment amount?","body":"An initial determination is the determination we make about your income-related monthly adjustment amount that is subject to administrative review. For the purposes of administering the income-related monthly adjustment amount, initial determinations include but are not limited to determinations about:\n(a) The amount of your income-related monthly adjustment amount based on information provided by IRS; and\n(b) Any change in your income-related monthly adjustment amount based on one of the circumstances listed in § 418.1310(a)(1) through (a)(4).","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":"1537aba97f00a33b4a4c42d39942ffd898615546cf5dfb84cc82410dd44a70f2","source_id":"us-cfr","stale":true,"prev":"us/20-cfr-418.1270","next":"us/20-cfr-418.1305"},"notice":"GroundRules: Original legal text. Not legal advice."}