Tax and Budget

Pension Changes in the FY2018 Budget: Short-Term Savings and Long-Term Costs

Release: October 10, 2017

The changes made to Illinois public pension systems in Public Act (PA) 100-0023 (introduced as Senate Bill 42), the Budget Implementation Act, or BIMP, passed on July 6, 2017, and include two primary elements. First, the BIMP creates a new Tier 3 level of benefits for public sector workers. Second, the BIMP permits the state to smooth out the fiscal impact of the actuarial reduction in the assumed rate of return generated by the state’s five pension systems.