Pension benefits are calculated using a formula, which is: Final Average Pay (FAP) x a Multiplier* x Credited Service = Monthly Base Benefit

The additional earnings for working in a second job may increase their final average pay. Statutorily required employer and employee contributions must be paid to the System on any such compensation. See MOSERS Board Rule 2-8 for details. 

However, state law says an employee can earn only one day of service credit for each day worked so it would not increase their credited service in terms of retirement eligibility or for calculating their benefit amount.

Below is a simplified example showing how working in an additional position could potentially impact an employee’s benefit. Employees should contact a MOSERS benefit counselor to get an estimate for their particular situation:

Working in one full-time position making $28,307 per year and retiring in MSEP 2000 with 25 years of service:

$28,307/12 months = $2,358.92 as monthly final average pay

FAP ($2,358.92) x Multiplier (0.017) x Credited Service (25) = $1,002.54 monthly base benefit in retirement

Working in one full-time position making $28,307 per year and retiring in MSEP 2000 with 25 years of service plus working in a part-time position at the same rate of pay (an extra 1,000 hours at $13.61 per hour per = $13,610 per year for 3 years):

$41,917/12 months = $3,493.08 as monthly final average pay

FAP ($3,493.08) x Multiplier (0.017) x Credited Service (25) = $1,484.56 monthly base benefit in retirement

*The multiplier for MSEP is 1.6%; the multiplier for MSEP 2000 and MSEP 2011 is 1.7%.