The Minnesota Deferred Compensation Plan (MNDCP) is a voluntary savings plan intended for long-term investing for retirement. Sign up and manage your deferred compensation retirement account.The 457(B) Plan allows employees to make regular contributions into retirement savings. There are both pre-tax and after-tax savings options. 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. Find your employer's plan. The Minnesota Deferred Compensation Plan is a voluntary savings plan to supplement your pension and social security income at retirement. When an employee dies, deferred compensation may be due and payable to the employee's beneficiary or estate.