[Mojave]

The 30% rate (as you insist) is adequate to cover the cost of the prebate.

Again, where does the money come from? Do other expenditures get cut? Does borrowing increase?

There ain't no such thing as a free lunch.

[Cracker Jack]

where does the money come from?

It comes from the FairTax paid by the taxpayers. Where does any government money come from other than the taxpayers? Three answers to the same question should be enough for anyone.