Quote from kjkent1:
Merchants already serve as unpaid tax collectors for the Federal government visa vis payroll taxes. And, anyone who has ever worked for a government taxing authority will tell you that auditing sales tax is enormously easier than auditing income. So, your enforcement theory doesn't hold with the facts.
As for fairness, what could possibly be more fair than taxing a person on what he/she consumes, and not on what he/she saves?
A national sales tax is a better idea in every way that matters, in my opinion.
Enforcement will be a nightmare and evasion will be rampant. The analogy between witholding taxes and sales tax is best when used on a cash basis. Employers who pay cash, don't withold taxes, don't report those payments, and neither do the employees. So many cash basis merchants will be tempted to collect the full price, selling plus tax, but not report those taxes. So here you will have a huge audit and enforcement division to handle this.
Right now, luxury good sellers, from antique dealers to jewelers, etc. connive with customers (rather, they bow to the customer's demand) that they ship empty boxes out of state to avoid state sales taxes. They will think up new ways to avoid new taxes. Especially when it falls upon the merchant to collect and pass on those taxes.
THis is the chief reason Dick Armey opposes the national consumption tax, not on the grounds that it is not fair, but that it will be difficult to enforce.