What is done if I am determined to be a higher-income beneficiary?
Then you'll pay a larger percentage of the total cost of Part B based on the income you normally report to the Internal Revenue Service IRS.
There's one more thing about the amount. If I Had a Higher Salary
you ll pay monthly premiums plus an additional amount , which is based on what you report to the IRS . Because individual plan premiums vary , the law specifies that the amount is determined using a base premium