CalPERS Final Compensation Calculation and Age Factor Table
The Retirement Formula
Every CalPERS pension uses three variables:
Service Credit × Age Factor × Final Annual Compensation ÷ 12 = Monthly Allowance
Service credit is your total years of credited service, including eligible purchased or converted credit. The age factor is a percentage that increases with age. Final compensation is your average salary over a defined period. Understanding how CalPERS calculates the last two variables is where most members need clarity.
Final Compensation: 12 Months vs 36 Months
Classic members may have their final compensation calculated using either the highest 12 consecutive months or the highest 36 consecutive months, depending on what their employer contracted with CalPERS.
The 12-month option is more favorable. A single year with eligible pensionable pay, a raise, or a step increase can set the entire figure. If your highest-paid year was 2024 and you earned $95,000, your final compensation under the 12-month method is $95,000.
Under the 36-month method, that same $95,000 year gets averaged with the two adjacent years. If you earned $88,000 and $91,000 in the years before, your 36-month average is $91,333 — lower than the 12-month peak.
PEPRA members always use the 36-consecutive-month average. There is no employer contract option for a shorter period. PEPRA also restricts what counts as pensionable compensation, excluding overtime, one-time bonuses, uniform allowances, and 12 other categories under Government Code Section 7522.34.
Check your Annual Member Statement on myCalPERS to see which final compensation period applies to you. If you are Classic and you see "36-month," do not assume it is wrong — some Classic employers contracted for the longer period.
Age Factor Tables
The age factor (also called the benefit factor) determines what percentage of final compensation you earn per year of service. It increases in quarterly increments — every three months of age adds a small bump.
Classic 2% at 55 (Local Miscellaneous)
| Age | Factor |
|---|---|
| 50 | 1.426% |
| 52 | 1.628% |
| 55 | 2.000% |
| 57 | 2.104% |
| 60 | 2.262% |
| 62 | 2.366% |
| 63+ | 2.418% (cap) |
At age 55 with 25 years of service and $80,000 final compensation, the monthly benefit is: 25 × 2.000% × $80,000 ÷ 12 = $3,333/month.
The same member waiting until age 60 gets: 25 × 2.262% × $80,000 ÷ 12 = $3,770/month — a $437/month increase from the higher age factor alone, not counting the additional service credit earned during those five years.
PEPRA 2% at 62 (Miscellaneous)
| Age | Factor |
|---|---|
| 52 | 1.000% |
| 55 | 1.300% |
| 57 | 1.500% |
| 60 | 1.800% |
| 62 | 2.000% |
| 65 | 2.300% |
| 67+ | 2.500% (cap) |
The PEPRA factor starts much lower and reaches its target percentage seven years later. A PEPRA member at 55 gets 1.300% per year of service; a Classic 2% at 55 member at the same age gets 2.000%.
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Quarterly Increments Matter
The age factor does not jump once a year. It increases every quarter — at each birthday, three months after, six months after, and nine months after. If you are retiring near a quarter boundary, waiting a few weeks can permanently raise every future pension payment.
For example, a Classic 2% at 55 member retiring at 59 years and 11 months gets a lower factor than one retiring at 60 years and 0 months. The exact factor at each quarter depends on the specific formula, but the jump at each quarter boundary is real and permanent.
Your myCalPERS estimate lets you model different dates. Run estimates for dates just before and just after the nearest quarter boundary to see the actual dollar difference.
Compensation Caps
Final compensation is also subject to statutory caps.
Classic members hired on or after July 1, 1996, are limited by IRC Section 401(a)(17) — $350,000 for 2025 and $360,000 for 2026. Most Classic members earn well below this threshold.
PEPRA members face significantly lower caps under Government Code Section 7522.10:
| Year | With Social Security | Without Social Security |
|---|---|---|
| 2025 | $155,081 | $186,096 |
| 2026 | $159,733 | $191,679 |
If you are a PEPRA member earning above the cap, only compensation up to the limit counts in your final compensation calculation. Salary above the cap does not increase your pension.
Verifying Your Numbers
Log into myCalPERS and generate a retirement estimate. Check that the service credit total, final compensation figure, and age factor all match what you expect. If any number looks wrong — especially the final compensation period (12 vs 36 months) or your membership tier — contact CalPERS before filing your application.
For worksheets that walk through the full calculation with your specific numbers, the CalPERS Service Retirement Guide includes a Benefit Estimate Worksheet that maps each variable to the formula.
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