And untack all the old taxes that you paid for in your merchandise even though it wasn’t itemized.
What of earnings that have already been earned and taxed?
We add a 9%
And even then, I'm leery of authorizing the federal government to enact a sales tax. For that is a new tax... and who knows what the next party in power will do to it.
It's best not to give the authority to the government at all.