The Minnesota Deferred Compensation Plan (MNDCP) is a voluntary savings plan intended for long-term investing for retirement. Qualified deferred compensation plans include regular defined benefit plans, 401(k), IRA, and 457 plans.If you have questions about the deferred compensation plan, please contact the Minnesota Deferred Compensation Plan at 1-800-657- 5757. 4. NACo's Deferred Compensation Program has helped more than 1.5 million county employees and retirees save for and live comfortably in retirement. The Minnesota Deferred Compensation 457b Plan or mndcp is available to all public employees who work for the state. Find your employer's plan. This plan offers a tax-deferred savings plan that can help supplement other retirement benefits.