How much does the IRS cost to operate? How much would a new NRST "compliance" agency cost to operate? The difference, if any, would be the only reduction in government spending. How much would this "difference" save on the cost of a product or service? These are the only "savings" we could see from a NSRT.
We have huge comsumption in the USA and falling production. That needs to change and taxing consumption is a fine start. It also will tends to spread the pain of paying for government to people the people that drive up the cost of government but NEVER paid for government (non-producers) so I think it is fairer that an income tax.