美国政府的财政收入,绝大部分来自税收,其中个人所得税占的比例最大。个人所得税包括联邦税、州税和地方税。联邦税率全国一致,但州税率和地方税率各地不同。有些州甚至没有州税,如阿拉斯加、佛罗里达、内华达、德克萨斯和华盛顿等州。有些州虽有州税,但只限股息和利息收入,如新罕布什尔和田纳西等州。此 The U.S. government’s fiscal revenue comes largely from taxes, of which personal income tax accounts for the largest proportion. Personal income tax includes federal tax, state tax and local tax. The federal tax rate is the same across the country, but the state and local tax rates are different. Some states do not even have state taxes, such as Alaska, Florida, Nevada, Texas, and Washington. Some states have state taxes, but only dividends and interest income, such as New Hampshire and Tennessee. this