The web Browser you are currently using is unsupported, and some features of this site may not work as intended. Please update to a modern browser such as Chrome, Firefox or Edge to experience all features Michigan.gov has to offer.
Actuarial Cost Table
This table estimates your cost to purchase universal buy-in, parental leave, and other governmental service credit.
Directions: Use your age as of the beginning of the current fiscal year (the state fiscal year runs Oct. 1 through Sept. 30). Multiply the applicable percentage rate by your highest previous fiscal year earnings (equating part-time wages to full-time wages) to arrive at the cost of 1 year of service credit.
Age at Purchase | Percentage Rate | Age at Purchase | Percentage Rate | Age at Purchase | Percentage Rate | ||
up to 25 | 12.6% | 37 | 15.7% | 49 | 19.3% | ||
26 | 12.8% | 38 | 16.0% | 50 | 19.6% | ||
27 | 13.0% | 39 | 16.3% | 51 | 19.8% | ||
28 | 13.2% | 40 | 16.6% | 52 | 20.0% | ||
29 | 13.4% | 41 | 16.9% | 53 | 20.2% | ||
30 | 13.6% | 42 | 17.2% | 54 |
20.4% |
||
31 | 13.9% | 43 | 17.5% | 55 | 20.6% | ||
32 | 14.2% | 44 | 17.8% | 56 | 20.7% | ||
33 | 14.5% | 45 | 18.1% | 57 | 20.8% | ||
34 | 14.8% | 46 | 18.4% | 58 | 20.9% | ||
35 | 15.1% | 47 | 18.7% | 59 | 21.0% | ||
36 | 15.4% | 48 | 19.0% | 60 and up | 21.1% |