That's ridiculous.
First of all, over 80% of sales taxes are collected by large corporate retail businesses. All that will be required for them to implement the FairTax will be to reprogram their cash registers. That's it.
Secondly, as a former small retail businessman, I assure you that the sales tax is by far the simplest tax to collect and pay. A couple of lines in the form: Gross sales. Percentage collected and owed. Bam. Finished.
The idea that somehow the enforcement mechanism for enforcing this tax would in any way come anywhere close to the invasiveness of the income tax is a total crock.
And under the FairTax, the individual would have exactly 0% obligation at all to do or show anything.
As a CURRENT small retailer I agree. But what have you EVER in your ENTIRE LIFE seen the US government get involved with that remains that simple.
There will be forms, and paperwork, and require proof, and audits, and source-of-Supply documentation, and waste documentation.
Its Naieve to think it won't be so, and be so in VERY short order.