Do you know what ss income vs earned income is, and what a tax bracket is. SS is automatically not considered earned income, when a retiree gets board and takes a job, the income from their job is first calculated, and then the social security which is automatically considered income exempt from earned income is totaled that is how you get your tax bracket, and what ever that number is, will be the percentage of tax on the income. The kicker is that most elderly retirees worked very low waged jobs for the time, and only the man worked, so women relied on the mans retirement income. Another thing you are forgetting is investment income, and that is why Trump more than likely flashes this I ended tax on social security, because let's face it, we have a bunch of old retired men and few women who get paid to run the country, and pull social security on top of the vacation. So if that wole has been pulled off your eyes, the alternator would have been to allow social security recipients to claim a earned income tax credit on their social security income, vs helping rich people with another loophole that digs the lower level recipients down even poorer because they already don't receive enough to get a tax return, or file taxes, did your dad explain that Mr professor?