Employers must report IMRF wages as well as member and employer IMRF contributions on a monthly basis for each IMRF member employed. Both employer-paid member and employer IMRF contributions must be deposited with IMRF monthly.
IMRF considers the failure to timely remit member contributions to be a serious offense.
4. 20 A Cash Basis
IMRF wage reporting is on a cash basis. This means that wages are reported to IMRF for the month and when they are paid to the member. It does not matter when the wages were earned or when the obligation to pay the wages accrued.
Instructions for reporting IMRF wages and contributions follow:
Monthly Employer Statement and Reporting of IMRF Deposits on Web
Monthly Reporting of Member Wages and IMRF Contribution Detail
Methods of Reporting Monthly IMRF Wages and Contributions: Specific Guidelines