[candybar]

From an economic perspective, there's no difference between the sales tax that is paid by the seller or by the buyer. So it's not correct for you to take credit for the taxes paid on the transactions between you and Amazon - the economic burden is shared by both parties. Likewise, Amazon pays the payroll tax and any income tax that is paid by its employees, effectively increases the cost of transaction between Amazon and its employees, making it a shared burden by both parties.