The Minnesota Deferred Compensation Plan (MNDCP) is a voluntary savings plan intended for long-term investing for retirement. If you have questions about the deferred compensation plan, please contact the Minnesota Deferred Compensation Plan at 1-800-657-. 5757. 4.Sign up and manage your deferred compensation retirement account. If you are eligible for a deferred compensation match or conversion, the questions and answers below will help you make your selection. Find your employer's plan. Deferred Compensation Plan.