Great! The government will just take everyone at their word. I don't think so.
Individual households do not remit retail taxes to government. The retai; business does after collecting it with the sales transaction.
Today there are approximately 120 million household on which financial and personal data is reported to the federal government detailing to deductibile expenditures and gross incomes of each individual reporting for those households.
Under a retail sales tax, the number of reporting businesses will be on the order of 20 million filing business sales tax returns with no individual level detail required, reporting to state tax bureaus rather than federal.
The FairTax NRST tax system, is a far cry from everyone reporting or government taking "everyone's" word or collecting information on individual level about everyone even.
Your hyperbole is noted for what it is. A rather unproductive exclaimation having little to do with reality and the significant improvements that a retail sales tax provides to the privacy and freedom from government intrusiveness as compared to the current federal income/payroll tax system or any other system that has been proposed to congress as tax reform todate.
You have a better tax system that isolates the individual more from a predatory federal govenment, I'm all ears. Thus far I have seen few suggestions of anything suggesting a federal tax reform that would even begin to meet the requirements you appear to demand and be acceptable to the electorate as a whole.
I'm all open for your suggestions where you can show a more viable tax reform that informs the individual voter of the proportionate cost of government in their lives and yet does not unnecessarily intrude into their household and personal financial privacy on a federal level.
I think they shouldcharge $20,000 to vote, and then we can eliminate all income taxes, estate and FICA taxes, and cut spending by however much is needed with our new Congress. That would be revenue neutral and most Americans would come out ahead.
Then how are the revenues accounted for?