CalSTRS Post-Retirement Earnings Limit: Rules for Working After You Retire

The 180-Day Separation Rule

Before you can work any CalSTRS-covered position after retirement, you must observe a mandatory 180-calendar-day separation from service. This clock starts on your effective retirement date — not your last day of work.

If you perform CalSTRS-covered service during the 180-day window, CalSTRS reduces your monthly retirement benefit dollar-for-dollar by the amount you earned. That reduction applies even if you didn't know the work was CalSTRS-covered.

Narrow exemptions exist for critical district staffing needs, but they require a formal board resolution from the hiring district and pre-approval from CalSTRS before work begins. You can't request the exemption after the fact.

Annual Earnings Limits

After the 180-day separation period ends, CalSTRS retirees working in California public school positions face an annual post-retirement earnings cap. The limits change each fiscal year:

The 2025–2026 increase reflects Senate Bill 765, which temporarily expanded the cap. When SB 765 sunsets on June 30, 2026, the limit reverts to the statutory baseline for 2026–2027.

If your post-retirement earnings exceed the cap in any fiscal year, CalSTRS withholds the excess from your monthly pension check, dollar-for-dollar. The reduction continues until the overage is recovered.

What Counts as CalSTRS-Covered Work

The earnings limit and 180-day rule apply only to work performed in California public school systems — K-12 school districts, community college districts, county offices of education, and qualifying charter schools.

Work that is exempt from the earnings limit:

• Private schools anywhere in California
• Private sector employment (any industry)
• Out-of-state public schools
• University of California (UC) positions
• California State University (CSU) positions
• Federal teaching positions

A CalSTRS retiree who substitutes at a public middle school three days a week during the school year is subject to the earnings cap. The same retiree tutoring privately or teaching at a CSU is not.

Substitute Teaching After Retirement

Substitute teaching is the most common post-retirement CalSTRS-covered work and fully subject to both the 180-day rule and the annual earnings cap. There is no special exemption for substitutes.

Track your substitute earnings carefully throughout the fiscal year. Many retirees spread their substitute days across multiple districts, and each district reports your earnings to CalSTRS independently. The cap applies to your combined total across all CalSTRS-covered employers.

If you're approaching the cap partway through the year, stop taking assignments. CalSTRS collects overages from your pension check, and the recovery process can take months to resolve.

How This Affects Retirement Timing

The earnings limits create a practical consideration for educators planning to supplement their pension income. The cap is measured by fiscal year, while the 180-day separation period runs from your effective retirement date. Consider both when choosing a retirement date.

Some educators delay retirement specifically to avoid the 180-day gap during peak substitute season (September through June). Others use the separation period to take a full break and return to substitute work the following school year.

The CalSTRS Service Retirement Guide covers the return-to-work rules in detail, including the exemption application process and a planning worksheet for post-retirement earnings.

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