I'll grant that IF prices decline by at least the amount of the tax (I'm skeptical) then a person with accumulated after-income-tax savings wouldn't be any worse off. But he'd still be paying twice the taxes.
I personally support the idea of a sales tax of some sort. It would encourage saving and investing - both good for the country and individual families.
Why are you skeptical?
... then a person with accumulated after-income-tax savings wouldn't be any worse off. But he'd still be paying twice the taxes.
What indicates to you that that after tax savings will be taxed any more than now?