Colorado PERA has nine HAS tables, PERA 1 through PERA 9. Yours sets your retirement ages and your early-retirement percentages. Three questions decide it.
Colorado specificsShort answer: your table, PERA 1 to PERA 9, depends on when you joined and how much service you had on January 1, 2011. It sets your full-benefit rule, your reduced percentages and how many years go into HAS. Enter your membership date in the calculator and it picks the table.
Three questions
When did your PERA membership begin? On or after January 1, 2020 is PERA 9. In 2011 through 2016 is PERA 7.
Joined in 2017 through 2019? PERA 7 if your most recent 10 years of service are in the School or DPS Divisions. PERA 8 if not.
Joined before 2011? It depends on your service on January 1, 2011, and whether you could already retire that day (with a full or a reduced benefit). Could retire: PERA 1, 3 or 5. Couldn't yet: PERA 2, 4 or 6. Joined before 2007 with less than five years on that date: PERA 6.
Your PERA Benefits p. 16, Highest Average Salary Percentages Tables (chart)
Members who joined before 2011 Check with PERA
If you joined before 2011, your table (PERA 1 or 2, 3 or 4, 5 or 6) depends on whether you could already retire on January 1, 2011. That depends on your age and service on that day.
What we use: We test your age and service on January 1, 2011. If you don't enter that service, we estimate it from your membership date as if you worked without a break. Your PERA account shows your actual table.
Your PERA Benefits p. 16; C.R.S. 24-51-605(3), (4)
Joined 2017 through 2019 Check with PERA
If you joined in 2017 through 2019, you're on PERA 7 if your most recent 10 years of service are in the School or DPS Divisions, and PERA 8 if not.
What we use: We assume PERA 7 because this site is for school employees. Pick PERA 8 in the calculator if your recent service was in another division.
Your PERA Benefits p. 16
The nine tables
"Full benefit" means 2.5% of HAS for each year of service. "Reduced" means a smaller percentage from your table, for life. The salary cap limits how much each year's pay can rise in your HAS.
PERA 1
On or before June 30, 2005
Could retire on Jan. 1, 2011?
Yes: could retire (full or reduced) on Jan. 1, 2011
Full benefit
age 50 with 30 years; age 60 with 20 years; age 65 with 5 years; Rule of 80: age plus service of 80, from age 55
Reduced benefit
age 50 with 25 years; age 55 with 20 years; age 60 with 5 years
Early percentages
Set by state law
HAS raise cap
15% a year
C.R.S. 24-51-602(1)(a), (1)(c); Your PERA Benefits p. 6 (Membership Started Before July 1, 2005, With Five Years of Service Credit on January 1, 2011); C.R.S. 24-51-604(1), Table C; Your PERA Benefits p. 7 (Membership Started Before January 1, 2020)See the PERA 1 table →
PERA 2
On or before June 30, 2005
Could retire on Jan. 1, 2011?
No: couldn't retire yet on Jan. 1, 2011
Full benefit
age 50 with 30 years; age 60 with 20 years; age 65 with 5 years; Rule of 80: age plus service of 80, from age 55
Reduced benefit
age 50 with 25 years; age 55 with 20 years; age 60 with 5 years
Early percentages
Actuarial (PERA can change them)
HAS raise cap
8% a year
C.R.S. 24-51-602(1)(a), (1)(c); Your PERA Benefits p. 6 (Membership Started Before July 1, 2005, With Five Years of Service Credit on January 1, 2011); C.R.S. 24-51-604(1), Table C; Your PERA Benefits p. 7 (Membership Started Before January 1, 2020)See the PERA 2 table →
PERA 3
July 1, 2005 - December 31, 2006
Could retire on Jan. 1, 2011?
Yes: could retire (full or reduced) on Jan. 1, 2011
Full benefit
35 years at any age; age 55 with 30 years; age 60 with 20 years; age 65 with 5 years; Rule of 80: age plus service of 80, from age 55
Reduced benefit
age 50 with 25 years; age 55 with 20 years; age 60 with 5 years
Early percentages
Set by state law
HAS raise cap
15% a year
C.R.S. 24-51-602(1)(a.5), (1)(c); Your PERA Benefits p. 6; C.R.S. 24-51-604(1), Table C; Your PERA Benefits p. 7 (Membership Started Before January 1, 2020)See the PERA 3 table →
PERA 4
July 1, 2005 - December 31, 2006
Could retire on Jan. 1, 2011?
No: couldn't retire yet on Jan. 1, 2011
Full benefit
35 years at any age; age 55 with 30 years; age 60 with 20 years; age 65 with 5 years; Rule of 80: age plus service of 80, from age 55
Reduced benefit
age 50 with 25 years; age 55 with 20 years; age 60 with 5 years
Early percentages
Actuarial (PERA can change them)
HAS raise cap
8% a year
C.R.S. 24-51-602(1)(a.5), (1)(c); Your PERA Benefits p. 6; C.R.S. 24-51-604(1), Table C; Your PERA Benefits p. 7 (Membership Started Before January 1, 2020)See the PERA 4 table →
PERA 5
January 1, 2007 - December 31, 2010
Could retire on Jan. 1, 2011?
Yes: could retire (full or reduced) on Jan. 1, 2011
Full benefit
35 years at any age; age 55 with 30 years; age 60 with 25 years; age 65 with 5 years; Rule of 85: age plus service of 85, from age 55
Reduced benefit
age 50 with 25 years; age 55 with 20 years; age 60 with 5 years
Early percentages
Set by state law
HAS raise cap
8% a year
C.R.S. 24-51-602(1)(a.7), (1)(d); Your PERA Benefits p. 6; C.R.S. 24-51-604(1), Table C; Your PERA Benefits p. 7 (Membership Started Before January 1, 2020)See the PERA 5 table →
PERA 6
January 1, 2007 - December 31, 2010 (not eligible on Jan. 1, 2011); or on or before December 31, 2006 with less than five years of service credit on Jan. 1, 2011
Could retire on Jan. 1, 2011?
No: couldn't retire yet on Jan. 1, 2011
Full benefit
35 years at any age; age 55 with 30 years; age 60 with 25 years; age 65 with 5 years; Rule of 85: age plus service of 85, from age 55
Reduced benefit
age 50 with 25 years; age 55 with 20 years; age 60 with 5 years
Early percentages
Actuarial (PERA can change them)
HAS raise cap
8% a year
C.R.S. 24-51-602(1)(a.7), (1)(d); Your PERA Benefits p. 6; C.R.S. 24-51-604(1), Table C; Your PERA Benefits p. 7 (Membership Started Before January 1, 2020)See the PERA 6 table →
PERA 7
January 1, 2011 - December 31, 2016; or January 1, 2017 - December 31, 2019 with the most recent 10 years of service in the School or DPS Divisions
Could retire on Jan. 1, 2011?
Doesn't matter
Full benefit
35 years at any age; age 58 with 30 years; age 65 with 5 years; Rule of 88: age plus service of 88, from age 58
Reduced benefit
age 50 with 25 years; age 55 with 20 years; age 60 with 5 years
Early percentages
Actuarial (PERA can change them)
HAS raise cap
8% a year
C.R.S. 24-51-602(1.5), (1.8); Your PERA Benefits p. 6 (lists 58/30 and 60/28); C.R.S. 24-51-604(1), Table C; Your PERA Benefits p. 7 (Membership Started Before January 1, 2020)See the PERA 7 table →
PERA 8
January 1, 2017 - December 31, 2019, most recent 10 years NOT in the School or DPS Divisions
Could retire on Jan. 1, 2011?
Doesn't matter
Full benefit
35 years at any age; age 60 with 30 years; age 65 with 5 years; Rule of 90: age plus service of 90, from age 60
Reduced benefit
age 50 with 25 years; age 55 with 20 years; age 60 with 5 years
Early percentages
Actuarial (PERA can change them)
HAS raise cap
8% a year
C.R.S. 24-51-602(1.7); Your PERA Benefits p. 6; C.R.S. 24-51-604(1), Table C; Your PERA Benefits p. 7 (Membership Started Before January 1, 2020)See the PERA 8 table →
PERA 9
On or after January 1, 2020
Could retire on Jan. 1, 2011?
Doesn't matter
Full benefit
35 years at any age; age 64 with 30 years; age 65 with 5 years
Reduced benefit
age 55 with 25 years; age 60 with 5 years
Early percentages
Actuarial (PERA can change them)
HAS raise cap
8% a year
C.R.S. 24-51-602(1.9); Your PERA Benefits p. 6; C.R.S. 24-51-604(2), Table C.1; Your PERA Benefits p. 7 (Membership Started on or After January 1, 2020)See the PERA 9 table →
The HAS raise cap is 15% for membership on or before Dec. 31, 2006 and eligible to retire on Jan. 1, 2011; 8% for membership on or before Dec. 31, 2006 and not eligible to retire on Jan. 1, 2011; 8% for membership on or after Jan. 1, 2007. Your PERA Benefits p. 7
Denver Public Schools
Employees of Denver Public Schools. The Denver Public Schools Retirement System (DPSRS) merged into PERA on January 1, 2010. Members who began with DPS before 2010 may have a DPS benefit structure account; membership with a DPS employer that began on or after January 1, 2010 is under the PERA benefit structure. The School Division covers school districts other than DPS. Your PERA Benefits p. 1, Program Overview; p. 13 (DPSRS merged into PERA Jan. 1, 2010); Survivor Benefits booklet p. 1, Overview
If you have a DPS benefit structure account, its rules differ. In short:
DPS benefit structure service retirement: members with five years of service credit on Jan. 1, 2011 - age 50 with 30 years, 55 with 25 years (15 earned), or 65 with 5 years; members with less than five years on Jan. 1, 2011 - 35 years at any age, 55 with 30 (20 earned), 60 with 25, or 65 with 5.Your PERA Benefits p. 9, DPS Benefit Structure, Service Retirement Eligibility
DPS reduced service retirement: with five years on Jan. 1, 2011 - 25 years at any age or 55 with 15; otherwise 50 with 25, 55 with 20, or 60 with 5. With less than five years under the DPS structure only a refund/rollover is available.Your PERA Benefits p. 9, DPS Benefit Structure, Reduced Service Retirement Eligibility
DPS benefit: the higher of a minimum benefit ($15 a month for each of the first 10 years plus $20 for each additional year, plus a money purchase amount) or 2.5% of HAS per year, with reduced percentages from the DPS 1-4 HAS tables.Your PERA Benefits p. 10, Benefit Calculation
DPS payment options are A (life, no match on the remaining balance), B (life with a guarantee period), P2 (50% to a cobeneficiary) and P3 (100% to a cobeneficiary).Your PERA Benefits p. 11, DPS Benefit Structure Benefit Options
DPS benefit structure members get the same AI terms as PERA benefit structure members who joined before 2007 (1.0% in 2026).Annual Increases fact sheet p. 1, AI Overview
DPS Division employer contribution: 18.40% total (January 2026); the member rate is 11.00%, the same as the School Division.Contribution Rates fact sheet PDF pp. 1-2
We don't model the DPS benefit structure. If your membership with Denver Public Schools began on or after January 1, 2010, you're under the PERA benefit structure and these pages apply.
Not covered by this calculator. Safety Officers (state troopers and others) and Judges have different eligibility, HAS and contribution rules. Your PERA Benefits p. 1; pp. 8-9, Safety Officer Provisions
From the sources
Colorado school district employees (except Denver Public Schools) are in PERA's School Division. Membership is generally required, and the retirement plan is the PERA Defined Benefit Plan.Your PERA Benefits p. 1, Program Overview; p. 2, Membership and Contributions
Your benefit rules depend on when your PERA membership started. PERA sorts members into nine tables (PERA 1 through PERA 9) by membership date, by whether you had five years of service on January 1, 2011, and by whether you could retire on that date.Your PERA Benefits p. 16, Highest Average Salary Percentages Tables
If you joined on or after January 1, 2020, you are on the PERA 9 table. If you joined between 2011 and 2016, you are on PERA 7. If you joined in 2017 through 2019, you are on PERA 7 when your most recent 10 years are in the School or DPS Divisions, and on PERA 8 otherwise.Your PERA Benefits p. 16
Check with PERAYour PERA account shows which table applies to you. Our calculator works it out from your dates, and when you don't enter your service on January 1, 2011, it estimates that from your membership date.Your PERA Benefits p. 16
Denver Public Schools employees are in a separate DPS Division. Some have a DPS benefit structure account with different rules. If your DPS membership began on or after January 1, 2010, you are under the PERA benefit structure.Your PERA Benefits p. 1; pp. 9-11; Survivor Benefits booklet p. 1
Check with PERASchool Division employees don't appear on PERA's list of who can choose the PERA Defined Contribution (DC) Plan. The list covers State employees, community college employees, some classified college and university employees, and Local Government Division employees.DC Plan overview p. 1, PERAChoice
Where the PERA DC Plan applies, you have 60 days from your hire date to choose it. If you don't choose, you go into the Defined Benefit Plan. DC members always keep 100% of their own contributions. Employer money vests at 50% right away and rises 10% a year to 100% after five years of participation.C.R.S. 24-51-1502(1); DC Plan overview p. 3, Vesting
School Division members contribute 11% of salary to PERA. Employers contribute 21.40% (as of January 2026). Both rates can rise or fall by up to 0.5% a year under PERA's automatic adjustment provision.Your PERA Benefits p. 2; Contribution Rates fact sheet PDF p. 2; Automatic Adjustment fact sheet p. 1
The PERA DC Plan Check with PERA
PERA's list of who can choose the PERA Defined Contribution (DC) Plan doesn't include school district employees, but the sources don't say so in words.
What we use: We say school employees aren't on the list, and we don't model the DC Plan.
DC Plan overview p. 1, PERAChoice
Questions
What are the PERA 1 to PERA 9 tables?
PERA sorts members into nine groups by when membership began, and for earlier members by their service and whether they could retire on January 1, 2011. Each group has its own HAS table and retirement ages. The tables are named PERA 1 through PERA 9.
How do I find my table for sure?
Your PERA account shows which HAS table applies to you. Our calculator works it out from your dates, but your account is the final word.
Why does January 1, 2011 matter?
A 2010 law changed the rules for members who couldn't yet retire on January 1, 2011. If you joined before 2011 and could already retire that day (full or reduced), you keep the older table (PERA 1, 3 or 5). If not, you're on PERA 2, 4 or 6.
Source: Your PERA Benefits: A Summary of the Colorado PERA Defined Benefit Plan, Revised April 2026, pp. 1, 2, 6, 7, 8-9, 9, 9-11, 10, 11, 13, 16. Also: C.R.S. 24-51-602, 24-51-604, 24-51-605, 24-51-1502; Survivor Benefits booklet p. 1; Annual Increases fact sheet p. 1; Contribution Rates fact sheet; DC Plan overview pp. 1, 3; Automatic Adjustment fact sheet p. 1. Last reviewed .