^^^This (+ rep).
Within a generation of the passage of the income tax, definitions blurred the distinction between income and salaries/wages into nebulous oblivion with an ever-widening lasso. Each successively blurred distinction nullified, in effect, your right to the value of your own labor, which Congress now has the power statutorily impute, through income tax law, to be essentially valueless (or whatever value they decide) - the only thing that is always of 100% real value is what you receive in exchange for your labor.
Income was originally "net profit", intended to tax rich businessmen (at a whopping 1%, and perish the slippery slope fallacy that income would ever include common wages, or that taxes could reach the unthinkable 10%). Note that the original schedules for income tax only considered NET profit as taxable income (not the all-inclusive tentacles of "adjust gross income" that would later come). How do you accomplish "net income" with labor, except for the taxpayer himself to distinguish between gross and net? Need to have government step in and decide for everyone what counts as an "itemized decuction" or "tax credit". And the degree to which wages and salaries are considered "taxable income", is the degree to which
your labor is imputed as being worth ZERO, while 100% of what you receive in exchange for that labor is
pure profit.
A good read on how that nasty camel went from nose in the tent to fully and destructively inside the tent, with the meddling and blurring of the income/wages line, by deception and degree, can be read
HERE.
Once again, proof that abrogation of individual liberty occurs through a game of legislative S-E-M-A-N-T-I-C-S, in an INSANE WORLD where the truly nefarious, along with their blitheringly useful idiot dependents, can, with straight faces, argue that:
Income = Wages
Money = Debt
Inflation = Net effect on prices, pay no attention to the root causes - just point lots of fingers and argue and fight amongst yourselves
Fictitious = Tangible = Derivatives = Physical
Rights = Entitlements
Defense = Offense = Unprovoked Attacks
...and anyone who says otherwise is kooky, old-fashioned, behind the times, selfish, isolationist, or "living in a bubble".