The money has to be taxed every time it changes hands.
Your employer pays you. tax
You buy a car. tax
The dealership pays his salespeople. tax
They buy gas for their cars. tax
The gas station owner makes a profit. tax
We need to get rid of the sales tax and go to a simple income tax. Flat rate. No loopholes.
If you receive money or goods, they are taxed. You should not be taxed AGAIN if you buy something with your money.
The person selling you the service or goods should have his income taxed.
Too much of the tax system was designed for social engineering and business manipulation. That needs to end.