The formula
Years of creditable service × percentage value × average final compensation.
| Class | Per year |
|---|---|
| Regular Class | 1.60%, stepping to 1.63%, 1.65%, 1.68% at later normal retirement ages |
| Special Risk Class | 3.00% for Special Risk service on and after October 1, 1974 |
Average final compensation is your highest 5 fiscal years if you enrolled before July 1, 2011, your highest 8 if on or after.
Under a five-year average a strong final stretch pulls the number up hard. Under eight it is diluted. Same career, different answer.
