Even at the present 23% ti rate, the average (middle CBO quintile; married, 2 kids) taxpayer who has an effective income tax rate of 12.5% ($6488 in income tax paid) will have an effective FairTax rate of 7.82% ($3,128 in FairTax paid). So, you see, the actual tax rate paid (the effective rate) is much, much lower that those repeatedly put forth by opponents.
That goes to show you that you must listen to the "anti" crowd with much discernment as it is heavy with demagoguery.
Fair Tax myth.
Only you think it makes sense that the average guy sees his taxes go from $6488 to $3128 and thinks that your numbers can possibly add up.