various deductions

And because of various deductions and credits, many enacted by Republicans, close to half of all tax filers pay no federal income taxes.

而由于各种税收减免和优惠（其中许多是由共和党人出台的），在所有报税人当中，近一半不用缴纳任何联邦所得税。

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In the majority of states, the local income tax corresponds to the federal income tax in its basic structure in that it provides a progressive rate schedule and allows for various personal exemptions and deductions.

在大多数州里，地方所得税的基本结构与联邦所得税相同，也有累进税率表、准许种种免税和减税额。

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