The employer is not required to make its contribution until the employee is reemployed. For employer contributions to a plan in which the employee is not required or permitted to contribute, the employer must make the contribution attributable to the employee's period of service no later than ninety days after the date of reemployment, or when plan contributions are normally due for the year in which the service in the uniformed services was performed, whichever is later. If it is impossible or unreasonable for the employer to make the contribution within this time period, the employer must make the contribution as soon as practicable.

If the employee is enrolled in a contributory plan he or she is allowed (but not required) to make up his or her missed contributions or elective deferrals. These makeup contributions or elective deferrals must be made during a time period starting with the date of reemployment and continuing for up to three times the length of the employee's immediate past period of uniformed service, with the repayment period not to exceed five years. Makeup contributions or elective deferrals may only be made during this period and while the employee is employed with the post-service employer.

If the employee's plan is contributory and he or she does not make up his or her contributions or elective deferrals, he or she will not receive the employer match or the accrued benefit attributable to his or her contribution because the employer is required to make contributions that are contingent on or attributable to the employee's contributions or elective deferrals only to the extent that the employee makes up his or her payments to the plan. Any employer contributions that are contingent on or attributable to the employee's make-up contributions or elective deferrals must be made according to the plan's requirements for employer matching contributions.

The employee is not required to make up the full amount of employee contributions or elective deferrals that he or she missed making during the period of service. If the employee does not make up all of the missed contributions or elective deferrals, his or her pension may be less than if he or she had done so.

Any vested accrued benefit in the pension plan that the employee was entitled to prior to the period of uniformed service remains intact whether or not he or she chooses to be reemployed under the Act after leaving the uniformed service.

An adjustment will be made to the amount of employee contributions or elective deferrals the employee will be able to make to the pension plan for any employee contributions or elective deferrals he or she actually made to the plan during the period of service.