修改后的个人所得税法由于对某些应税所得项目的适用税率和费用扣除标准等作了较大调整，因而，这些所得项目的纳税人的税收负担水平发生了较大变化．具体失现在；工四、原全所得．对于原个人收入调节税的纳税人而古，由于该项所得的费用扣除标准由原来的400～460元提高到了800 The amended individual income tax law has made significant changes to the tax burden levels of taxpayers on these income items due to the major adjustments made to the applicable tax rates and cost deduction standards for certain taxable income items. Specific failure in; work four, the original full income. For old taxpayers who adjusted the tax on personal income, the cost deduction standard for this item increased from 400 to 460 yuan to 800