Definition: Mortgage 401(k) refers to a retirement account designed for employees who wish to save money for their retirement. It provides tax-advantaged savings opportunities, which are typically available through employers in addition to 401(k) plans offered by employer-sponsored plans (ESPPs). The term "mortgage 401k" refers to the specific type of retirement plan that offers these tax-advantaged savings options and is designed for employees who wish to save money for their retirement. The acronym "401k" stands for a defined contribution plan, which means that the funds in the plan are invested through an employer or a third party (such as a 401(k) provider), with contributions from employees' income or other sources. The term "mortgage 401k" is used to describe this type of retirement plan. It allows workers who have saved money for their retirement but want to use it for their own benefit, by contributing and investing in the funds within an employer's 401(k) plan. The funds can be invested through various types of investment vehicles (such as mutual funds or stocks), which are tax-advantaged because they offer lower rates of interest than traditional 401(k) accounts. For employees who have not yet reached retirement age, the terms "401k" and "retirement" may be less familiar, but these concepts are essential in understanding the context and purpose of a retirement plan.