CBO estimates 32 million more uninsured in a decade with Obamacare repeal

The number is higher than under plans that include a replacement.

The CBO estimates that the plan would decrease deficits by $473 billion by the end of the next 10 years.

The CBO previously estimated that proposed law would result in 22 million more uninsured persons and a deficit reduction of $321 billion by 2026.

In addition to those who will not be covered by insurance, the repeal-only act will increase premiums for those who hold plans, according to the CBO.

The office estimates that "average premiums in the nongroup market (for individual policies purchased through the marketplaces or directly from insurers) would increase by roughly 25 percent" in one year. That average premium increase would hit 50 percent by 2020 compared to projections of rates under the current law, and double by 2026, the CBO said.

ABC News' Ali Rogin contributed to this report.