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Types of Service Credit

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Michigan Office of Retirement Services

Types of Service Credit

Types of Service Credit

Public Act 92 of 2017, which was signed into law on July 13, discontinued the option to purchase most types of service credit as of September 29, 2017. However, active members of the Michigan Public School Retirement System may still purchase Active Duty Military Service and make payments to reinstate service canceled by a refund or to make whole member contributions that should have been made, but weren’t. These service credit types have specific rules, costs, and applications. In this section, we list the various types of service credit that you may be able to purchase or transfer. We also provide a summary chart below.

A note about costs.

The cost for your service credit may be based on a flat percentage rate, an actuarial rate, or a combination of contributions and interest. Where possible, we give you details and examples so you can estimate your cost. You can always get an actual cost by sending ORS an application or by requesting a "bill".

Service Credit Costs and Limits

Type Cost / Limit Application
Active Duty Military Service Intervening: No charge in most cases / 6 years
Nonintervening: 5% of highest previous fiscal year salary / 5 years (combination cannot exceed 6 years)
miAccount or  Military Service Credit Application (R0081C)


Weekly Workers' Compensation 

Pre-7/1/77: Contributions plus Interest / No limit
7/1/77-12/31/86: No charge / No limit

Post-1987: MIP costs plus Interest / No limit

Post-1987: Basic Plan no charge

Note: MIP contributions on WWC payments must be paid in full before you establish a retirement effective date.

If you received WWC payments after July 1, 1992, the credit should be reflected on your annual Member Statement

If you received WWC payments before July 1, 1992, submit an  Application for Weekly Workers' Compensation Credit (R0285C)

If you received WWC payments after July 1, 1992, your employer should have reported your WWC to ORS. Contact your payroll office to verify that your WWC was reported


Discontinued Service Credit Types

As of September 30, 2017
Universal Buy-In* Parental Leave*
Nonpublic Educational Service* Comprehensive Employment and Training Act of 1973 (CETA)
Out-of-System Public Educational Service Pre-1974 Out-of-System Public Educational Service Post 1974*
Sabbatical Leave Pre-1981 Sabbatical Leave Post-1981*
State of Michigan Civil Service - Defined Benefit Plan State of Michigan Civil Service - Defined Contribution Plan

* If you purchased this type of service credit after June 30, 2008, your insurance premium subsidy may not begin when your pension begins. It may be delayed until you reach the age in which you would have become eligible for a pension had you not purchased service. See Insurance Premium Subsidies and Delayed Subsidies for details.

Important Information

Buying service can help you qualify for your pension earlier, but it won't necessarily help you qualify for the plan's health insurance premium subsidy earlier. For more information refer to the Delayed Subsidy Examples.

Glossary of Terms