Repealing the penalties that enforce the “individual mandate” would “both reduce the number of people purchasing health insurance and change the mix of people with insurance,” as younger and healthier people with low health costs would be more likely to go without insurance, the budget office said.
The Republican bill would have eliminated the expansion of Medicaid eligibility and the subsidies for insurance purchased through Affordable Care Act marketplaces, after a transition period of about two years.
Those changes could have immediately increased the number of uninsured by 27 million, a number that would gradually increase to 32 million in 2026, the budget office said.
Without subsidies, the budget office said, enrollment in health plans would shrink, and the people who remained in the individual insurance market would be sicker, with higher average health costs. These trends, it said, would accelerate the exodus of insurers from the individual market and from the public marketplaces.
As a result, it said, about half of the nation’s population would be living in areas that had no insurer participating in the individual market in the first year after the repeal of marketplace subsidies took effect. And by 2026, it estimated, about three-quarters of the population would be living in such areas.
While writing the Affordable Care Act in 2009 and 2010, lawmakers continually consulted the Congressional Budget Office to understand the possible effects on spending, revenue and insurance coverage. The current director of the budget office, Keith Hall, who signed the report issued on Tuesday, was selected and appointed by Republican leaders of Congress in 2015.
The latest report was requested by Mr. Schumer and two other Democrats, Senators Ron Wyden of Oregon and Patty Murray of Washington.