CalSTRS Retirement Benefits Explained
How the formula works and what makes CalSTRS distinct
CalSTRS Formula
Benefit Factor × Years of Service × Final Monthly Compensation
(plus career factor bonus for Classic members with 30+ years)
The Defined Benefit Program — The Core Pension
CalSTRS administers three retirement programs, but the Defined Benefit Program is what most people mean by "the CalSTRS pension." It uses the standard formula above. Members hired before 1/1/2013 are Classic and use 2% at 60. Members hired on or after that date are PEPRA and use 2% at 62. Both formulas have a 5-year minimum service-credit threshold for retirement.
The Career Factor — Classic-Only Bonus
Classic CalSTRS members who retire with 30 or more years of service receive an additional 0.2% added to their benefit factor — known as the career factor. The career factor is capped: the total benefit factor (base factor plus career factor) cannot exceed 2.4%. Practically, this rewards long-tenured Classic members and is one of the features that disappeared with PEPRA.
Final Compensation — Same as CalPERS Plus a Wrinkle
Classic CalSTRS members use the highest 12-month compensation average; PEPRA members use 36-month. There's an additional CalSTRS-specific rule: members with 25+ years of service can use the higher of the regular formula or the one-year final compensation if the school district participates in that contract feature. This rule does not apply to PEPRA members.
Worked Example — Classic 2% at 60, Age 60, 25 Years, $7,500/Month
- Benefit factor at age 60: 2.000%
- Years of service: 25
- Final compensation: $7,500/month
- Calculation: 0.020 × 25 × $7,500 = $3,750/month
- Annual: $45,000/year
The same member with 30 years gets the career factor: 2.2% × 30 × $7,500 = $4,950/month — meaningfully more, both from the extra service credit and the 0.2% career-factor bonus.
No Social Security on CalSTRS Earnings
CalSTRS members generally do not pay into Social Security on their teaching earnings, and CalSTRS itself does not coordinate with Social Security. If you have Social Security credits from non-CalSTRS work (a summer job, a prior career), the Windfall Elimination Provision (WEP) reduces your Social Security benefit, and the Government Pension Offset (GPO) reduces any spousal/survivor Social Security benefit. Both are federal Social Security rules; check with the SSA for current calculations.
Survivor and Disability Benefits
CalSTRS offers several retirement payment options including a Member-Only option (analogous to CalPERS' unmodified option) and joint-and-survivor options that continue payments to a beneficiary at the cost of a reduced monthly benefit. Disability retirement is available for permanently disabled members under separate rules — coverage levels depend on Classic vs PEPRA status and years of service.
CalSTRS Benefits — Frequently Asked Questions
What is final compensation?▾
What is service credit?▾
What does the sensitivity ranking show?▾
What are the survivor benefit options?▾
What is the CalSTRS career factor?▾
How accurate is this calculator?▾
Related Guides
All 32 CalPERS Benefit Factor Charts
Interactive viewer for every CalPERS benefit factor table
2% at 62 — Deep Explainer
The most common PEPRA formula explained
2% at 55 — Deep Explainer
The most common Classic formula explained
How the CalPERS Retirement Formula Works
Benefit factor × years × final compensation
Final Compensation Explained
Highest 12 months vs highest 36 months
CalPERS Calculator Hub
All 32 CalPERS formulas
Disclaimer: CalSTRS rules around survivor options, disability, and the one-year final-compensation rule have specific eligibility requirements not fully covered here. Confirm specifics via the CalSTRS member handbook or by contacting CalSTRS directly.