Both the 0.9% Increased Medicare Tax on Earned Income and the 3.8% Medicare Tax on Unearned Income are referred to as, well, "Medicare" taxes, and they are treated as such on the tax return (additional taxes, not based on ordinary taxable income).
When I look at §1401, §1411, and §3101, I see the 0.9% tax on earned income referred to as Hospital Insurance, although I don't see anything in the NII tax that refers to that.
My question is this: where and how are these taxes designated specifically for Medicare (and not, for example, to subsidize health insurance under the Individual Mandate)? I guess this must be somewhere outside of Title 26 of the code?
And, will this be credited to the individual who pays it? In other words, just about every employed or formerly employed person in U.S. has a lifetime earnings record maintained by Soc. Security Administration (anyone can get their personal statement of earnings from SSA web site, they used to be mailed out annually), which among other things is used to track eligibility for both Social Security and Medicare benefits. Will either or both of these taxes be tracked as well, both for informational purposes as well as for determining when a worker is eligible for Medicare benefits?