What ‘tax plan’are you calling the ‘Fair Tax’?
There is an actual tax plan called ‘The FAIR Tax”
It is 27% at the cash register, but the tax is hidden by using a ‘tax inclusive’ method. (you only see the price with tax included, it’s hard to tell what the tax is)
I have tried to argue with ‘fair tax’ proponents that you never want to hide the tax, and ‘tax inclusive’ is not how sales tax is added now. They always try to give some convoluted argument an how much better ‘tax inclusive’ is. It’s like liberal zealotry.