A reduction of federal payments to reduce out-of-pocket costs for low-income individuals purchasing coverage through the ACA health insurance exchanges could result in premiums for silver-level plans being 20% higher in 2018 and 25% higher in 2026, according to estimates in a report by the Congressional Budget Office (CBO). It also is estimated that one million more individuals would be uninsured in 2018, largely as a result of insurers leaving a handful of markets in response to the policy.
The report can be obtained at https://www.cbo.gov/system/files/115th-congress-2017-2018/reports/53009-costsharingreductions.pdf.