If you’re asking when will IRMAA brackets for 2025 be announced, the answer is likely in late 2024, around October or November. These adjustments depend on the Modified Adjusted Gross Income (MAGI) data from tax returns, typically from two years prior (2023 for the 2025 brackets). Beneficiaries exceeding the specified income limits will face additional monthly charges on Medicare Part B and Part D premiums. To avoid surprises, keeping track of income changes and staying informed about official Medicare and Social Security updates is crucial, especially for those close to IRMAA income thresholds.