and..
"President’s Tax Reform commission about a national retail sales tax, State tax officials suggested that if the Federal government gave up taxation of incomes, “States would view this as a tax base now available to them to tax more fully. Since all but seven States have an income tax, it could be better to get rid of State sales taxes and let the Federal government collect its own revenue.” Also, in 1990, a GAO survey found that 80% of the State tax officials queried voiced strenuous opposition to a federal consumption tax like the Fairtax as an intrusion on a tax base that traditionally belonged to them."
within: http://www.fairtaxblog.com/20071230/bruce-bartlett-why-the-fairtax-wont-work/
The Fair Tax broadens the base and reduces the incidence. It is revenue neutral. Whether your taxes are cut depends on many factors. Generally, working stiffs are much better off under the Fair Tax than the income tax. Please see:
http://www.fairtax.org/PDF/TheFairTaxAndMiddleAmericans—CaseStudy.pdf
And here is an excellent rebuttal to Bruce Bartlett:
http://www.fairtax.org/PDF/080115-Kotlikoff_on_Barlett.pdf