These contributions shall be deducted by the employer and paid to the System as service agent for the Department of Central Management Services. The System may use the same processes for collecting the contributions required by this subsection that it uses to collect contributions received from school districts and other covered employers under Sections 16-154 and 16-155 of the Illinois Pension Code.
An employer may agree to pick up or pay the contributions required under this subsection on behalf of the teacher; such contributions shall be deemed to have to have been paid by the teacher. Beginning January 1, 2002, if the employer does not directly pay the required member contribution, then the employer shall reduce the member's salary by an amount equal to the required contribution and shall then pay the contribution on behalf of the member. This reduction shall not change the amounts reported as creditable earnings to the Teachers' Retirement System.
A person who purchases optional service credit under Article 16 of the Illinois Pension Code for a period after June 30, 1995 must also make a contribution under this subsection for that optional credit, at the rate provided in subsection (a), based on the salary used in computing the optional service credit, plus interest on this employee contribution. This contribution shall be collected by the System as service agent for the Department of Central Management Services. The contribution required under this subsection for the optional service credit must be paid in full before any annuity based on that credit begins.
These contributions shall be paid by the employer to the System as service agent for the Department of Central Management Services.
The System may use the same processes for collecting the contributions required by this subsection that it uses to collect contributions received from school districts and other covered employers under the Illinois Pension Code. The school district or other employing unit may pay these employer contributions out of any source of funding available for that purpose and shall forward the contributions to the System on the schedule established for the payment of member contributions.
5 ILCS 375/6.6