What is the TRS Rule of 80?
The TRS Rule of 80 means your age plus your years of TRS service credit total at least 80, with at least 5 years of service. In Tiers 1-2 it gives a full, unreduced pension at any age. In Tiers 3-6 you must also be at least 60 or 62, or the benefit is cut.
The TRS Benefits Handbook spells it out tier by tier on pages 26 to 31: "you meet the Rule of 80 (your age and years of service credit total at least 80) and you have at least five years of service credit." Every tier also has a second way to a full benefit: age 65 with 5 years. Which test applies depends on your TRS tier.
The Rule of 80 in each TRS tier
| Tier | Minimum age for a full benefit under the Rule of 80 | Meet it younger than that? | Handbook |
|---|---|---|---|
| Tier 1 | None: any age | Not applicable | p. 26 |
| Tier 2 | None: any age | Not applicable | p. 27 |
| Tier 3 | Age 60 | Cut 5% for each year under 60 | p. 28 |
| Tier 4 | Age 60 | Cut 5% for each year under 60; no cut at 55+ with 20+ years (still an early-age retiree) | p. 29 |
| Tier 5 | Age 62 | Cut 5% for each year under 62 | p. 30 |
| Tier 6 | Age 62 | Cut 5% for each year under 62; no cut at 55+ with 20+ years (still an early-age retiree) | p. 31 |
Full benefit or reduced? By age and tier
Assumes you have exactly the years shown, which is just enough to meet the Rule of 80 at that age.
| Age | Years needed | Tiers 1-2 | Tiers 3-4 | Tiers 5-6 |
|---|---|---|---|---|
| 50 | 30 | Full | Reduced | Reduced |
| 52 | 28 | Full | Reduced | Reduced |
| 54 | 26 | Full | Reduced | Reduced |
| 55 | 25 | Full | Reduced | Reduced |
| 56 | 24 | Full | Reduced | Reduced |
| 57 | 23 | Full | Reduced | Reduced |
| 58 | 22 | Full | Reduced | Reduced |
| 59 | 21 | Full | Reduced | Reduced |
| 60 | 20 | Full | Full | Reduced |
| 61 | 19 | Full | Full | Reduced |
| 62 | 18 | Full | Full | Full |
If you don't meet the Rule of 80
You can still retire early from age 55 with 5 or more years, or at any age with 30 or more years, but TRS reduces the benefit for life. For 5 to 19 years of service the handbook says the cut "may be as great as 53%". The exact cut by age and years is in the TRS early retirement reduction table. Often a few more months of work closes the gap; see what one more year adds.
Rule of 80, Rule of 90 and TRS-Care
- Rule of 90 for PLSO. In Tier 2, Tier 3 and Tier 5, taking a Partial Lump Sum Option needs age plus service of at least 90 (Handbook pp. 27, 28, 30). This is the "Rule of 90". It's separate from the Rule of 80 for a full benefit.
- TRS-Care. Retiree health coverage needs at least 10 years of TRS service plus age and service of at least 80 (or 30+ years), even if your pension was reduced. See TRS-Care eligibility (Handbook pp. 52-53).
- Your retirement date. You must meet the rule on your retirement date, which is always the last day of a month. See when to retire.
Needs checking with TRSThe handbook doesn't say whether partial years of age count toward the Rule of 80. Ask TRS for an estimate at each date you're weighing.
Questions
What is the TRS Rule of 80?
You meet the Rule of 80 when your age plus your years of TRS service credit total at least 80, with at least 5 years of service. Depending on your tier, that means a full benefit at any age (Tiers 1-2), or only from age 60 or age 62 (Tiers 3-4 or Tiers 5-6).
What if I meet the Rule of 80 before my tier's minimum age?
You can still retire, but it counts as an early-age retirement. In Tiers 3 and 5 your benefit is cut 5% for each year you are under 60 or 62. Tier 4 and 6 members who are at least 55 with 20 or more years are not reduced, but are still early-age retirees.
Does the Rule of 80 also decide TRS-Care?
It helps. TRS-Care needs at least 10 years of TRS service plus age and service totaling at least 80 (or 30+ years), even if your pension was reduced for early age. That's a separate test from your pension.
Source: TRS Benefits Handbook, September 2025, pp. 26-31. Last reviewed .