Why don't you read the article which contains an explanation of why sales tax is regressive. > Sales tax is already notoriously regressive—that is, it places a

Why don't you read the article which contains an explanation of why sales tax is regressive. > Sales tax is already notoriously regressive—that is, it places a larger burden on low-income taxpayers. There are no brackets or marginal rates in sales tax. Whether you make $100 or $100 million, your sales tax in Cupertino is 9.125% of the taxable purchase. The result is the portion of individual income that goes to paying sales tax is invariably higher in lower income individuals than it is in higher income folks.