A national report by the Pew Charitable Trusts showed state workers in Illinois pay one of the highest rates in the nation for health insurance premiums.
The Illinois Senate has approved legislation that will require retired state employees to pay premiums on their health insurance.
Governor Pat Quinn says he will sign the bill into law.
The state says 90% of retired state and university employees don't pay any premiums for their health insurance. That is estimated to cost at least $800 million this year.
Supporters of the legislation says it preserves access to health care for retirees. Otherwise, co-payments would rise and coverage might be reduced.