How does a tax on a good typically affect consumer surplus?

A tax on a good usually makes that good more expensive for consumers. When the price goes up due to the tax, some people might decide not to buy it or buy less of it. This decrease in purchases means that the overall benefit or "surplus" consumers get from buying the good also goes down. For example, if a popular snack increases in price because of a tax, some people may stop buying it, leading to less enjoyment from that snack and a loss of consumer surplus. Therefore, the tax reduces how much consumers benefit from the good they purchase.