Hey,
I am a previous business owner of a gas station.
Back when I ordered fuel - it was not taxed. The income from selling fuel goes to a vault in the business, which you can withdraw out of.
If you choose to withdraw the income - you then get taxed accordingly to how much your assets are worth. (Most people owning gas stations, if not all, will be 35% but it is a dynamic number)
If you keep the income in the vault - and you order - it takes it out of the business and not your bank account, therefore it does not tax you when ordering fuel.
However, when having to buy blips from Weazel News, that cannot be taken straight from the business vault - which means you are paying Weazel News the taxed income.
TL:DR; Income is only taxed when you withdraw it to your salary.