The U.S. Senate's healthcare bill would raise insurance premiums by at least 10 percent by 2016 for those independently buying coverage but subsidies would reduce the actual costs for half of that group, the Congressional Budget Office said on Monday.

The nonpartisan CBO said the bill would have a much smaller impact on those who receive coverage through employer-based plans. The analysts said premiums would increase for those purchasing their plans individually largely because those plans would offer greater benefits than under current policies.

(Reporting by Donna Smith and John Whitesides; editing by Bill Trott)