Oklahoma TRS Retirement Calculator
Estimate your Teachers' Retirement System of Oklahoma pension. Pick when you joined, enter your service and final average salary, and see your monthly benefit, when it's unreduced, and what retiring early costs.
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The 2% formula
Every TRS member gets 2% of final average salary for each year of service. The handbook's example: a teacher who retires at 62 with 35 years and a $40,000 FAS draws $2,333 a month for life. Twenty-five years on a $55,000 FAS is $27,500 a year, or $2,292 a month.
Members who joined before July 1, 1992 average their highest three salaries. Later members use their highest five consecutive salaries. Pay before July 1, 1995 was subject to salary caps, so a long-career member's FAS can be a blend of capped and uncapped years.
When you can retire unreduced
Joined before July 1, 1992: age 62, or Combination 80, where age plus service reaches 80. A 57-year-old with 23 years qualifies.
Joined July 1, 1992 through October 31, 2011: age 62, or Combination 90 with no minimum age. 55 with 35 years works.
Joined November 1, 2011 or later: age 65, or 90 points once you are at least 60. A 58-year-old with 32 years has 90 points but still has to wait for 60.
Early retirement
TRS reduces early benefits with a fixed age table. It doesn't matter how close you are to the Rule of 80 or 90. Members who joined before November 1, 2011 can retire from 55, keeping 55.96% at 55, 60.62% at 56, 65.73% at 57, 71.33% at 58, 77.48% at 59, 84.26% at 60 and 91.73% at 61.
Members who joined after October 31, 2011 can retire from 60, keeping 65% at 60, 73% at 61, 80% at 62, 86% at 63 and 93% at 64. If you stop working early, you can also wait and start an unreduced benefit when you reach your normal retirement age. Waiting longer than that doesn't raise it.
COLAs come from the Legislature
TRS increases come from bills, not a formula. The 2026 COLA (Senate Bill 1144) took effect November 1, 2026: 6% for members retired 20 years or more, 3% for 8 to 20 years, and nothing for anyone retired fewer than 8 years. The calculator's totals assume no future increases.
What this calculator leaves out
It shows the Maximum Option with no survivor benefit. It assumes you keep working full time until your retirement age, and it doesn't apply pre-1995 salary caps or the EESIP. It uses the factor for your completed age; TRS may adjust for partial years, so confirm with TRS before you file.
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Frequently asked questions
How is the Oklahoma TRS pension calculated?
2% x service years x final average salary, divided by 12 for the monthly benefit. The TRS handbook example is a teacher retiring at 62 with 35 years and a $40,000 FAS: 2% x 35 x $40,000 / 12 = $2,333 a month.
When can I retire unreduced from Oklahoma TRS?
It depends on when you joined. Before July 1, 1992: age 62, or when age plus service reaches 80. July 1, 1992 through October 31, 2011: age 62, or 90 points. November 1, 2011 or later: age 65, or 90 points once you are at least 60.
How much is the early retirement reduction?
TRS uses a fixed table by age. If you joined before November 1, 2011, you can go at 55 and keep 55.96% of your benefit, a 44% cut. At 58 you keep 71.33%, at 60 84.26%, at 61 91.73%. If you joined after October 31, 2011, early retirement starts at 60, where you keep 65%, rising to 80% at 62 and 93% at 64.
How long does it take to vest?
Five years of service if you joined before November 1, 2017. Seven years if you joined on or after that date. Purchased service and unused sick leave don't count toward vesting.
Does Oklahoma TRS have a COLA?
TRS COLAs come from bills the Legislature passes. Senate Bill 1144 (2026) gave 3% to members retired at least 8 but fewer than 20 years as of June 30, 2026, and 6% to members retired 20 years or more, effective November 1, 2026. Members retired fewer than 8 years got nothing.
What is my final average salary?
Members who joined before July 1, 1992 use their highest three salaries. Everyone else uses their highest five consecutive salaries. Salaries before July 1, 1995 can be limited by the salary cap you elected then.