So how do you keep the poor from being exploited in the tax?
I could come up with some ideas, but I'm not the one endorsing the Fair Tax. A better question is, how do you keep the monthly govt. cheese check from becoming a form of dependency? And doesn't it bother you that every American household would be waiting for the government to come through with their monthly check, so they will have the money they've budgeted to spend that month? All I'm saying is, if you want to reform the tax system, watch out for the obvious, "unintended" consequences (not least of which is giving the national government more control over interstate and intrastate commerce).
But if you insist, I could suggest that food, medicine, clothing, housing be exempt from the Fair Tax. That would still leave electronics, entertainment, tools, automobiles, stationary and office supplies, jewelry, sporting goods, etc. I could suggest that people under a certain income level be given a Fair-tax-exemption card they could show when making purchases. I could suggest that the government charter privately-run, tax-free stores, where poor people could buy their necessaries. Or just don't collect Fair Tax on anything, at any store, until a certain point in the year (maybe it wouldn't help the poor that much, but at least it would be better than all of us getting govt. checks). Probably all of these will have their flaws, but so does the current plan for a Fair Tax.
I think I'd be more inclined to favor an end to with-holding, along with a flat tax on income above a certain level, and an end to most (or all) exemptions. Personally, it would help me if my state government would not charge personal property tax on my two vehicles (2-driver household), especially since they are more than ten years old, and not worth much.