As a participant in CORP as a Tier 1, 2 or 3 DB Memberbenefits that are available to you vary depending on your Membership Tier:

Increases for Tier 1, 2 and 3 DB Members and Survivors

Cost of Living Adjustment (COLA) increase for correction officer retirees and survivors is determined based on the Consumer Price Index (CPI) published by the U.S. Bureau of Labor Statistics for the metropolitan Phoenix-Mesa-Scottsdale area ending December 31 of the prior calendar year.  Contingent on the CPI, up to 2% may paid as a COLA. 

For NEW retirees and survivors with a retirement date after July 1 of the prior fiscal year, the increase is prorated based on the date of retirement.  The following table provides examples how an increase is calculated if an increase is granted July 1, 2021:

Example 1: Effective retirement date 7/1/2020

# of months retired: 12

Example 2: Effective retirement date 1/1/2021

# of months retired: 6

Example 3: Effective retirement date 6/1/2021

# of months retired 1

Example 4: Effective retirement date  7/1/2021

Base benefit


Base benefit


Base benefit


Not eligible for the increase this year since the member was not retired prior to the effective date of the increase







Eligible for the full increase

Eligible for 6 months of the increase

Formula: $20 / 12 (months) x 6 (months) = $10.00

Eligible for 1 month of the increase

Formula: $20 / 12 (months) x 1 (month) = $1.67

New base


New base


New base


Please note that if a COLA is granted, it may change the monthly Federal and Arizona state income tax withholding amounts and so members are encouraged to view their Direct Deposit Notices via Members Only, showing the gross, deductions and net check. 

Additional Increase Requirements for Tier 3 DB Members and Survivors

The increase will be payable after 7 years of retirement, or at age 60, whichever comes first, and will be determined based on the funding level of the CORP.

 Funding Level


 70% to < 80% 

1.0% cap 

  80% to < 90% 

1.5% cap

90% or more

2.0% cap


Funding Levels

To help you understand the factors and investment methodologies, you may view current and prior fiscal year information in the ACFR (Annual Comprehensive Financial Reports), or the Actuarial Valuations under Annual Reports. 

Additional Resources

For additional resources, Plan summary, guide books and forms, you may access our Forms & Resources webpage and for the latest news and information, we encourage you to Sign Up for News and Updates