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Medicare Modernization Act (MMA) IRS Medicare Part B

Published by Social Security Administration | Social Security Administration | Catalog Last Checked: October 19, 2026 at 02:34 PM | Dataset Last Updated: October 16, 2026
SSA will use data received from the IRS to determine whether or not a beneficiary's income will result in a higher premium being paid for their Medicare Part B coverage. The data received from the IRS includes tax filing status, Modified Adjusted Gross Income (MAGI), any Life Changing Events, amended tax returns, and IRS corrections to a tax return.

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