School district employees and some other educational employees may purchase tax-sheltered annuities and have the cost tax-deferred under Section 403(b) of the Internal Revenue Code. Contributions to deferred compensation plans, such as an IRC section 403(b) plan , are included as IMRF earnings and must be reported to IMRF. This is true regardless of the source of the contributions, whether paid via a cafeteria plan, or whether paid by the employer in lieu of health insurance.