“For new teachers to become part of Social Security this scenario would mean a mandatory 12.4 percent payroll deduction split evenly between the member and the employer, which in the case of Illinois teachers is school districts and state government. Teachers would still be required to contribute 9.0 percent of salary to TRS.
“For school districts, the cost of teacher pensions would immediately rise by a considerable amount. Instead of contributing 0.58 percent per new teacher, every district would have to contribute 6.2 percent per teacher. It is estimated that this increased cost would equal $41 million for Illinois school districts in the first year and more than $2.4 billion over 10 years. Plus, districts would still have to contribute 0.58 percent for each participant in the current system.
“Finally, a 1999 study by the General Accounting Office found that adding teachers and other public employers from around the country who are not currently in Social Security would create, at best, a temporary surge in revenue for Social Security. Over the long term, adding teachers to Social Security would only increase the System’s total obligations and deepen the long-term funding problem” (TRS).