一项独立的分析得出结论说，由国会众议院共和党领导人推动的美国税制改革将在下个10年内，增加美国国债达1万7千亿美元，这比之前的估算多出了2590亿美元。
国会预算办公室的分析星期三公布之际，国会议员们继续考虑一系列旨在把美国公司税从百分之35减为百分之20并且削减许多中产阶级家庭税率的计划。美国对中产阶级家庭的广泛定义是年收入在4万9千美元到8万6千美元之间的家庭。
这个机构被认为是国会财政政策的独立记分员。它的分析可能会使共和党人推动众议院在11月23日感恩节之前通过税改法案的计划复杂化。
共和党议员们曾经保证，下个十年的减税不会让美国目前以及不断增加的20多万亿美元的长期国债增加幅度超过1.5万亿美元。
鉴于国会预算办公室估计税改会花费更多，众议院占多数的共和党人将不得不修改他们的计划，以使额外的税收缺口不超出他们自己设定的1.5万亿美元。
目前的税制改革可能是30多年来美国复杂的税法首次做出的实质性变化。参议院共和党人预计星期四将推出他们的税改计划，参议院的版本可能与众议院的版本大相径庭。
川普总统一直要求进行税改，但是在他签署税改法之前，必须由国会参众两院先批准相同的立法法案。
An independent analysis has concluded the U.S. tax overhaul being advanced by Republican leaders in the House of Representatives would add $1.7 trillion to the country's debt during the next decade, about $259 billion more than previously assumed.
The Congressional Budget Office analysis was released Wednesday as lawmakers continue to consider an array of proposals aimed at cutting the country's corporate tax rate from 35 to 20 percent and trimming tax rates for many, but not all, middle-class families, broadly defined in the United States as those with an annual household income of $49,000 to $86,000.
The new analysis from the agency that is considered to be the independent scorekeeper for congressional financial policies could complicate Republican plans for the House to adopt the tax overhaul before the country's Thanksgiving holiday on November 23.
Republican lawmakers had pledged the tax cuts over the next decade would not add any more than $1.5 trillion to the country's current and growing long-term debt of more than $20 trillion.
With the CBO's estimate the tax changes would cost more, the majority Republicans in the House would have to change their proposals to keep the additional costs within the $1.5 trillion limit they have imposed on themselves.
The tax overhaul could be the country's first substantial changes to its labyrinth tax code in more than three decades. Senate Republicans are expected to unveil their tax change proposals on Thursday, which are likely to be widely different than the House proposals.
President Donald Trump has called for the tax overhaul, but both chambers of Congress would have to approve identical pieces of tax legislation before he could sign the measure.
