The unit benefit formula is a technique for estimating an employer’s contribution to an employee’s pension plan based on years of service. According to the unit benefit formula, the firm pays a proportion of the employee’s wage, which might scale from 1.25 to 2.5 percent. Employees are compensated for long working hours in a firm under a retirement plan that uses a benefit formula. The unit benefit formula is a means of calculating the contribution made by the employee to a defined benefit plan or pension plan based on years of service. Although a retirement plan based on a unit benefit formula might reward employees for staying with the company for a more extended period, it can also be more expensive for the employer to execute.