Group IV
Requirements: 55 years of age if less than 20 service years
20 year of service may retire at any age
If you are first employed after Jan 1, 1978, you must have 10 years of service
Directions: Multiply the indicated percentage by the average of your 3 highest consecutive years salary
| Factor | 0.001 | 0.002 | 0.003 | 0.004 | 0.015 | 0.016 | 0.017 | 0.018 | 0.019 | 0.02 | 0.021 | 0.022 | 0.023 | 0.024 | 0.025 |
| Age | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55-65 |
| Service | Years | ||||||||||||||
| 10 | 25 | ||||||||||||||
| 11 | 27.5 | ||||||||||||||
| 12 | 30 | ||||||||||||||
| 13 | 32.5 | ||||||||||||||
| 14 | 35 | ||||||||||||||
| 15 | 37.5 | ||||||||||||||
| 16 | 40 | ||||||||||||||
| 17 | 42.5 | ||||||||||||||
| 18 | 45 | ||||||||||||||
| 19 | 47.5 | ||||||||||||||
| 20 | 2 | 4 | 6 | 8 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 |
| 21 | 2.1 | 4.2 | 6.3 | 8.4 | 31.5 | 33.6 | 35.7 | 37.8 | 39.9 | 42 | 44.1 | 46.2 | 48.3 | 50.4 | 52.5 |
| 22 | 4.4 | 6.6 | 8.8 | 33 | 35.2 | 37.4 | 39.6 | 41.8 | 44 | 46.2 | 48.4 | 50.6 | 52.8 | 55 | |
| 23 | 6.9 | 9.2 | 34.5 | 36.8 | 39.1 | 41.4 | 43.7 | 46 | 48.3 | 50.6 | 52.9 | 55.2 | 57.5 | ||
| 24 | 9.6 | 36 | 38.4 | 40.8 | 43.2 | 45.6 | 448 | 50.4 | 52.8 | 55.2 | 57.6 | 60 | |||
| 25 | 37.5 | 40 | 42.5 | 45 | 47.5 | 50 | 52.5 | 55 |