Colorado · PERA · Working after retirement

Working after a Colorado PERA retirement

Many PERA retirees go back to a school as a substitute or part-timer. You can, within a yearly limit. Go over it and your benefit is cut.

Colorado specificsShort answer: 110 days or 720 hours a calendar year for PERA employers, or 140 days for designated school retirees. Each day over the limit cuts your benefit 5%. Critical-shortage hires get no PERACare subsidy. If you'd rather keep earning service, compare one more year. Check the benefit at stake in the calculator.

The limit

110 daysor 720 hours a calendar year, for any PERA employer
140 daysor 916 hours, if your school district designates you
5%off a month's benefit for each day over the limit

A "day" is more than 4 hours. Days of 4 hours or less count by the hour: add those hours up and divide by 6.5454. Working After Retirement, definitions (PDF p. 2); pp. 1-3

PERA's example: Janet works 60 long days and 90 hours on short days. 90 ÷ 6.5454 = 13.75, so she has used about 74 days (our engine: 73.75). Working After Retirement p. 1, Workday Limit Definition, Example

Our examples: 108 long days and 30 short-day hours is 112.58 days: 3 days over the 110-day limit, so 15% off a later month's benefit (5% a day). A designated retiree with 130 days and 40 hours is at 136.11, under 140.

Designated retirees and critical shortages

School/DPS Division employers (and state colleges) may designate up to 10 retirees a year (plus one per 1,000 students over 10,000) to work up to 140 days/916 hours for that employer; school-district designations are limited to six consecutive calendar years beginning January 2025. Designation must be reported by September 1. Working After Retirement, definitions (PDF p. 2); pp. 1-3

Rural school districts, their charter schools, and BOCES may declare a critical shortage for listed roles (including teachers); a designated retiree has no limit for that position for up to six consecutive calendar years, gets no PERACare subsidy, and if retired with a reduced benefit must wait two years to return to the same employer in that position. Working After Retirement, definitions (PDF p. 2); pp. 1-3

Your first month

Working or volunteering for a PERA employer on the first business day of the effective month invalidates/delays retirement. Working for a PERA employer in your retirement month cuts your benefit by 5% for each day or part day. Working After Retirement, definitions (PDF p. 2); pp. 1-3

Working retirees pay working retiree contributions at the regular member rate; they earn no added benefit and can't be refunded. Not reporting excess days by March 31 adds a penalty at PERA's assumed rate of return (7.25%) per day of nondisclosure. Working After Retirement, definitions (PDF p. 2); pp. 1-3

PERA's booklets describe no DROP program; working after retirement is how retirees go back to work. Rules are in state law at C.R.S. 24-51-1101

From the sources

Questions

How many days can a Colorado PERA retiree work?

Up to 110 days or 720 hours a calendar year for PERA employers, without losing benefits. A "day" is more than 4 hours of work.

What happens if I go over?

Each day over the limit cuts a later month's benefit by 5%.

Can a school district let me work more?

Yes. A school district can designate a small number of retirees to work up to 140 days or 916 hours for that district. Rural districts with a critical shortage can hire some retirees with no limit for that job.

Can I work in my first month of retirement?

Avoid it. Working for a PERA employer in your retirement month cuts your benefit by 5% for each day or part day, and working on the first business day can cancel or delay your retirement.

Source: Your PERA Benefits: A Summary of the Colorado PERA Defined Benefit Plan, Revised April 2026. Also: Working After Retirement pp. 1, 1-3, 2; C.R.S. 24-51-1101. Last reviewed .