A Senate bill to gut the Affordable Care Act would kill more than 16 million people over 10 years and lead to more than 30 million fewer insured Americans, according to a nonpartisan analysis.
The report, published Thursday by the nonpartisan Congressional Budget Office, found that the legislation would cost more than $100 billion a year, or nearly 10 percent of gross domestic product.
It also concluded that the Republican proposal would have a disproportionate impact on the poor, seniors and young people.
The bill would eliminate or significantly curtail coverage for nearly a million people under age 65 and nearly 500,000 people under 65 without a plan, the CBO found.
It would also repeal or significantly restrict coverage for millions of people who are uninsured or underinsured and could face higher premiums.
Democrats say the plan would create millions of jobs.
The CBO report also said the bill would create nearly 9 million fewer Americans and 3 million fewer jobs over 10 to 20 years.
That could lead to an unemployment rate of 7.1 percent, the lowest since 2000, the report found.
The nonpartisan Joint Committee on Taxation estimated the bill could raise $1.5 trillion in revenue over 10 year periods over 2026 and add nearly 1 million jobs.
Republicans say the legislation is needed to fix a health care system in crisis, but Democrats have called it the worst budget proposal in history and have criticized it for cutting Medicaid, the federal program for low-income people, and raising taxes.
The House is expected to vote on the legislation this week, and President Donald Trump has said he wants to get it done.
The Senate passed a version of the legislation Thursday that would strip millions of Americans of health insurance in 2018.
The measure would also gut Medicaid, which provides health care for millions.
A bipartisan group of senators said the Senate bill would be more expensive than Obamacare, and that a tax overhaul was better for the economy.
But a White House official said the proposal would cut federal spending by $1 trillion over 10 decades.
The official, who spoke on condition of anonymity to discuss internal deliberations, said the tax bill will save the economy billions of dollars over the long run and will bring more revenue to the federal government.
The Congressional Budget and Policy Center, a nonpartisan think tank, said repealing or significantly limiting Medicaid would cost $8.5 billion over 10-year periods over the period 2020 to 2026.
The group said that the $8 billion is offset by savings from cutting taxes and expanding the federal deficit.
The tax plan would also eliminate or severely limit coverage for an estimated 12 million people and would lead to about 10 million fewer uninsured Americans.
The new CBO report said repealing the ACA would cost at least $100 trillion over the decade, or about 4 percent of GDP.
The analysis, by researchers with the Joint Committee for Taxation, is the first time that the Congressional Budget Committee has looked at the effects of a GOP plan to repeal the ACA.
Republicans have been pushing the plan as a way to fix the nation’s health care crisis.
They say it will lower premiums and help Americans afford health care, and it will help pay for tax cuts and other benefits they say will boost the economy and lead more Americans to buy insurance.
The Republican plan would eliminate coverage for about 7 million people without a health plan, including nearly 6 million under age 45, according the CBO report.
That’s a sharp decline from the 7.5 million under the ACA, which also had an expansion of Medicaid under the law.
The estimated increase in the uninsured under the bill is likely due to an increase in enrollees from Medicaid.
The GOP plan also would reduce federal spending for the next decade by about $1,600 billion over the 10- to 20-year period.
The budget office estimates that repealing the law would reduce the federal budget deficit by $2.2 trillion.
The Joint Committee also estimated the tax cut will boost GDP by $10 trillion over that time.
The estimate for the tax plan comes as Senate Democrats are threatening to filibuster the bill.
The Democratic leaders said Thursday that if they have to vote to proceed to debate, they will filibuster the plan, which they say could leave the GOP with no path to passing a repeal and replace bill.
Patty Murray of Washington, Heidi Heitkamp of North Dakota, Kamala Harris of California, Joe Manchin of West Virginia and Joe Donnelly of Indiana have all indicated they will oppose the bill if it moves to a filibuster-proof chamber.
The senators are also planning to call for a special committee of senators to examine the plan before the end of the year.
The Associated Press contributed to this report.