PensionMath
State PensionsNovember 17, 202515 min read

Teachers Retirement System (TRS): How State Teacher Pensions Work

CalSTRS, Texas TRS, Illinois TRS, NYSTRS: each state system works differently. Most do not allow lump sums, teachers in several states do not pay into Social Security, and the WEP repeal changes things for many of them.

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Formulas reference current IRS guidance and published segment rates. See methodology

Teaching is one of the few professions where defined benefit pensions still dominate, but the systems that fund those pensions vary dramatically by state. California teachers have CalSTRS. Texas teachers have TRS. New York teachers have NYSTRS. Each works differently, funds differently, and offers different options at retirement. Most don't allow a full lump sum. And in several states, including California, Texas, Ohio and Illinois, most teachers don't pay into Social Security, which until the 2025 repeal meant WEP and GPO cut whatever Social Security they had from other jobs or a spouse.

The major TRS systems

CalSTRS (California). Formula: an age factor times years of service times final compensation. Under 2% at 60 (members before 2013) the factor is 2.0% at 60; members with 30 or more years add a 0.2% career factor, so 30 years at 60 pays 66%. Under 2% at 62 the factor is 2.0% at 62, so 30 years at 62 pays 60%. Both tiers top out at 2.4%. Members need five years of service to retire.

Texas TRS. Formula: 2.3% times years of service times average of the 5 highest annual salaries (3 for grandfathered members). A 30-year teacher earns 69% of final average salary. Texas TRS offers a Partial Lump Sum Option (PLSO) at retirement, allowing members to elect 12, 24, or 36 months of benefit as a one-time payment in exchange for a permanently reduced monthly annuity. Five-year vesting.

Illinois TRS. Formula: 2.2% of final average salary per year of service, capped at 75%. Tier 1 members can retire at 62 with 5 years, 60 with 10 or 55 with 20 (reduced before 60 unless they have 35 years). Tier 2 members, hired from 2011 on, retire unreduced at 67 with 10 years or reduced at 62 with 10 years.

NYSTRS (New York). Formula varies by tier. Tier 6 members, who joined on or after April 1, 2012, get 1/60 (about 1.67%) of final average salary per year with under 20 years, or 35% plus 2% per year beyond 20 with 20 or more years. Five years of service is enough to vest in every tier, including Tier 6 since a 2022 change. Final average salary is the highest three consecutive years.

Georgia TRS. Formula: 2.0% times years of service (up to 40) times the average of the highest 2 consecutive years. Ten-year vesting. Service retirement at 60 with 10 years or at any age with 25 years, with a reduction if you have fewer than 30 years and are under 60.

The WEP repeal and what it means for teachers

In several states, including Texas, Ohio and Illinois, most public school teachers don't pay Social Security taxes on their teaching pay. Before the repeal, these teachers faced the Windfall Elimination Provision (WEP) if they had Social Security credits from other work, and the Government Pension Offset (GPO) if they had spousal or survivor SS benefits.

The Social Security Fairness Act, signed January 5, 2025, repealed both. Teachers who worked in SS-covered jobs before or after their teaching career now receive their full earned SS benefit. Spouses of teachers who lost spousal SS benefits to GPO now receive those benefits. If you have not seen your SS amount updated, check your my Social Security account and contact SSA if the reduction is still showing.

Survivor benefit options

Most TRS systems offer joint and survivor annuity options at retirement. The reduction depends on both ages. In Texas TRS's table, a 63-year-old naming a 59-year-old beneficiary under the 100% option keeps 88.64% of the standard annuity. Teachers in states without Social Security should pay particular attention to survivor benefit elections. Their spouse may have limited SS income from the teacher's career. The survivor benefit election at pension retirement may be the primary guaranteed income source the surviving spouse has.

Pension funding across state teacher systems

Teacher pension systems vary widely in funded status. Each system reports its funded ratio in its annual comprehensive financial report and actuarial valuation, both posted on its website, so look up yours rather than relying on a national average. Funding mostly affects future contribution rates and the pressure on lawmakers to change benefits for new hires. Benefits already earned are protected by law in most states, as covered below.

Part-time teachers and substitute teachers

Each system sets its own rules for how much part-time or substitute work earns a year of service credit, and some give partial credit while others give none below a threshold. Teachers who spent years in part-time or substitute roles before moving to full-time positions sometimes discover that their credited service years are substantially less than their calendar years in the classroom. Request a service credit history from your plan administrator if there is any uncertainty about your credited years.

Moving between states: reciprocity agreements

Most state teacher pension systems have no portability. If you teach in California for 8 years, leave for Texas, and teach there for another 15, you have two separate pension benefits from two separate systems rather than one combined benefit. CalSTRS and Texas TRS are not reciprocal systems.

Reciprocity, where it exists, usually links systems within one state. Illinois, for example, lets service in its public systems count together under its Reciprocal Act. For teachers who move across state lines, the more useful tool is usually an out-of-state service purchase in the new system, which Texas TRS and CalSTRS both allow for eligible service. Costs and rules vary, so ask early.

Teacher pension versus 403(b): what the research shows

A teacher who stays a full career usually gets far more guaranteed income from the pension than the same contributions would buy in a 403(b). In Texas TRS, 30 years at 2.3% replaces 69% of the salary average. The catch is that pension value builds slowly at first and fast near the end, when the salary average is highest and unreduced eligibility arrives. A teacher who leaves after 10 or 12 years often gets much less than the same money would have grown to in a 403(b).

Disability retirement for teachers

Teacher systems offer disability benefits, but the terms differ a lot. Service minimums vary, and so does the formula. CalSTRS's basic disability benefit, for example, is 50% of final compensation plus 10% for each eligible child, up to 90%. Check your own system's handbook for the rules that apply to you.

Teachers who become disabled before meeting the service threshold may receive only a refund of their own contributions rather than a lifetime benefit. If you are nearing a service threshold and have a health condition that could affect your ability to work, understanding your disability benefit eligibility is worth doing before a potential forced separation from employment.

Supplementing TRS with a 403(b)

Most teacher pension systems allow participants to contribute to a 403(b) supplemental retirement account through payroll deduction. 403(b) plans are the nonprofit and government sector equivalent of the private-sector 401(k). Contribution limits for 2026 are $24,500 per year, with an $8,000 catch-up for employees 50 and older ($11,250 at ages 60 to 63). Teachers in states with strong pension systems often underuse 403(b) plans because the pension feels sufficient. But teachers who leave before reaching full retirement eligibility, or who want inflation protection beyond what a fixed pension provides, benefit from supplemental savings.

The 403(b) is particularly useful for teachers in non-Social Security states who entered the system mid-career with limited SS credits. Even after the WEP repeal improved SS benefits for these teachers, 403(b) savings provide investment-driven growth and estate value that the pension does not. Teachers within 10 years of retirement should review their 403(b) contribution rate alongside their pension projection, especially if their TRS system has no COLA or a below-inflation adjustment.

What teachers should do in the 10 years before retirement

The decade before TRS retirement is when planning decisions have the most impact. The benefits of acting early compound, and the costs of waiting until the final year are significant.

10 to 7 years out: Maximize service credit. If you have prior public service eligible for purchase, including substitute teaching, out-of-state public employment, or military service, get the purchase cost estimate from your TRS system now. CalSTRS's handbook says plainly that the earlier you buy, the lower the cost. A purchase that gets you to an unreduced threshold, like the Texas Rule of 80, can be worth far more than its added service alone.

7 to 5 years out: Model your benefit at multiple retirement dates. Most TRS systems provide online benefit estimators. Run projections at the nearest unreduced retirement age and at 2 and 4 years early. For a teacher with a $3,200/month unreduced pension, a 10% early reduction is $320/month less for 25 to 30 years of retirement, totaling $96,000 to $115,000 in foregone income. Make the decision with that number explicit.

5 years out: Attend your system's pre-retirement workshop or counseling session if it offers one. Most large systems do, covering benefit options, survivor elections, health insurance and the application process. These sessions answer questions that are difficult to resolve by reading the handbook alone. Register at 5 years out, not in the final month before retirement.

3 years out: Verify your Social Security earnings record at ssa.gov/myaccount. With WEP repealed for benefits payable after December 2023, SS credits earned from non-teaching work count in full. Know your SS benefit before modeling total retirement income. Request a formal benefit estimate letter from your TRS system. Verify that your salary history and service credit in the system are accurate. Errors in salary records happen and are significantly harder to correct after separation from employment.

1 year out: Start the application process and find out your system's filing window. Processing takes time, so don't wait for the last allowed day. Make your survivor benefit election affirmatively. The survivor benefit choice in a TRS plan is often irrevocable at retirement. Do not let it default.

The 30-year teacher's total retirement income picture

Most TRS retirement discussions focus on the pension in isolation. The full picture includes TRS pension, Social Security (if applicable), 403(b) savings, and any part-time income in the early retirement years. For a career teacher with 30 years of service in a state with an average TRS benefit structure, the numbers are materially better than most teachers expect.

Example: a Tier 3 Texas TRS teacher retires at 60 with 30 years, meeting the Rule of 80 at the tier's minimum age. Salary average $72,000. TRS benefit: 2.3% times 30 times $72,000 = $49,680/year ($4,140/month). Most Texas teachers don't pay Social Security on teaching pay, but with WEP repealed for benefits payable after December 2023, Social Security earned from other jobs now counts in full. Assume $1,000/month from earlier covered work.

If that teacher also put 5% of a $60,000 average salary into a 403(b) for 30 years at a 6% return, the account would be about $237,000 at retirement. Drawing 4% a year adds about $9,490/year ($791/month).

Total monthly retirement income: $4,140 TRS pension plus $1,000 SS plus $791 from the 403(b) = $5,931/month in the first year. For a teacher who spent their career earning a public-sector salary, that income picture compares favorably to most private-sector workers' retirement outcomes. The pension is the foundation; the 403(b) provides the inflation buffer and estate value that the fixed pension does not.

Key questions to ask your TRS system before retirement

Most TRS systems have a pre-retirement counseling service that allows members to ask specific questions before submitting their application. Use it. Specific questions worth asking: What is my final average salary calculation using the years XXXX through XXXX? Does my service credit include the substitute year I worked in 2009, and how was it calculated? What survivor benefit options are available to me and what is the monthly cost of each? If I retire on a date in the middle of a school year, how does that affect my final average salary calculation? Can I retire and return to part-time work in a non-TRS-covered position without affecting my pension?

Get answers in writing, or at minimum document the date, time, and name of the representative you spoke with. Phone counseling conversations are not legally binding, but a written record of what you were told creates a basis for a formal claim if the benefit you receive differs from what you were promised. Errors in TRS benefit calculations do occur. The most common: incorrect service credit totals, missing years due to leave periods, and salary history errors from years where your employer reported incorrectly. Identifying these before your retirement date gives you the opportunity to correct them through normal administrative channels. Fixing a benefit after it's been set takes far longer than catching the error at the estimate stage. Treat the pre-retirement estimate review as a required step, not an optional one. Every TRS system provides this service at no cost to the member. Use it every year in the five years before your planned retirement date, not just once at the end.

PBGC coverage and public pension protection: why TRS is different

Private-sector pensions are insured by the Pension Benefit Guaranty Corporation, a federal agency that steps in when a corporate pension plan fails due to employer bankruptcy or underfunding. Public-sector pensions -- including every state TRS system -- are not covered by PBGC. State law and, in many states, constitutional provisions provide the protection instead.

In most states, accrued public pension benefits are treated as a contractual right that cannot be reduced retroactively for already-earned service. Courts in New York, Illinois, California, and others have consistently ruled that pension benefits for already-accrued service are legally protected and cannot be cut without triggering constitutional obligations. Illinois provides the strongest protection: Article XIII, Section 5 of the Illinois Constitution explicitly states that membership in a state pension system is an enforceable contractual relationship, and that benefits shall not be diminished or impaired. Illinois courts have upheld this protection repeatedly against legislative attempts to reduce pension costs.

New York's constitution has a similar clause (Article 5, Section 7). Other states protect benefits through statute or court decisions, and the strength of that protection varies. Where it's weaker, funding levels and politics matter more.

What this means practically: for active TRS members, the risk of benefit reduction on already-accrued service is low in most states -- significantly lower than the risk of a private-sector pension plan failing and being taken over by PBGC with benefit cuts. The PBGC guarantee in 2026 is $7,789.77/month. TRS benefits have no analogous cap. A teacher with 38 years of service entitled to a $6,500/month benefit is owed that full amount by state law, not subject to any federal guarantee ceiling.

What happens to your TRS benefit if you leave teaching before retirement

Teachers who leave TRS-covered employment before reaching retirement eligibility have options that vary significantly by state and years of service. Understanding these options before leaving is essential; the decision made at separation is often irrevocable.

The refund option: most TRS systems allow departing members to take a refund of their employee contributions, sometimes with credited interest. Taking a refund gives up the accrued pension for good. Compare the two carefully, because the answer depends on age. Take a 35-year-old leaving with a $1,200/month pension payable at 62. Valued with the IRS rates and mortality table our calculator uses, that pension is worth about $35,000 today (about $188,000 by the time it starts at 62), before any COLA the plan pays. If the refund is larger than that, the refund may be the better deal for a young leaver. For someone older or with more service, the deferred pension usually wins.

The deferred vested option: most TRS systems allow members with vested service (typically 5 to 10 years depending on the state) to leave their contributions in the system and collect a deferred pension at the normal retirement age. This preserves the most value for members who leave teaching mid-career. The benefit is calculated at the formula and salary in effect at the date of separation, not at the future retirement date -- so there is no salary growth benefit after leaving, and no COLA accrual until payments begin in most systems.

Reciprocity: arrangements that combine service generally work within one state, such as the Illinois Reciprocal Act among Illinois public systems, not across state lines. Before taking a teaching job in another state, ask both systems how your service will be treated and whether an out-of-state service purchase is available.

The decade-by-decade TRS planning summary

Verify your service credit in your 40s, model benefit scenarios in your early 50s, go to a pre-retirement workshop about 5 years out and file a complete application on time.

The most common preventable mistakes: taking a refund of contributions after leaving a position and permanently forfeiting a deferred pension, missing a service credit purchase window when the actuarial cost was still favorable, defaulting on the survivor benefit election without modeling the true cost of each option, and submitting a retirement application with errors in the final average salary period that take months to correct.

None of these mistakes requires extraordinary planning to avoid. They require knowing what questions to ask and when to ask them. TRS systems are not adversarial -- they want to pay you correctly. The members who get exactly the benefit they earned are the ones who verified their records, corrected errors before submission, and used the free pre-retirement counseling services their system provides. Every step in the process is documented in your system's member handbook. Reading it once, 5 years before your planned retirement date, is the most valuable hour of retirement planning you can do. Every TRS system publishes a member handbook that covers benefit formulas, service credit rules, survivor options, early retirement penalties, refund procedures, and the application process in detail. Most systems also offer a secure online portal where members can view their current service credit, salary history, and projected benefit at multiple retirement ages. Using these tools regularly -- not just in the final year -- is the difference between a retirement that works exactly as planned and one that requires correcting errors under time pressure. Log in to your TRS member portal at least once per year, confirm your service credit total is accurate, and save the statement. An annual five-minute check is the lowest-cost retirement planning habit that exists.

Use the present value calculator to frame your TRS pension as a financial asset in present value terms before the retirement election is filed -- most teachers are surprised how large the number is. Use the Social Security calculator to model claiming timing if your state allows Social Security participation alongside TRS. Use the pension income tax calculator to understand your state's treatment of pension income and whether a retirement location decision affects your after-tax income materially. TRS pensions are among the most generous in public employment. Claim yours correctly.

The math in this article is for educational purposes. Tax laws, benefit formulas, and IRS rules change. Before making pension or retirement decisions involving five- or six-figure amounts, consult a fee-only fiduciary financial advisor who can model your specific situation.

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Frequently asked questions

Do teachers pay Social Security?

Depends on the state and often the district. In states such as Texas, Ohio and Illinois, most public school teachers don't pay Social Security tax on their teaching pay. Check Box 4 of your W-2: if Social Security tax is withheld, your job is covered.

Can teachers take a pension lump sum?

Most state teacher pension systems do not offer a lump sum at retirement. Texas TRS and STRS Ohio are exceptions, each with a partial lump sum option. If you leave before vesting, you can usually withdraw your own contributions plus interest.

How did the WEP repeal help teachers?

Teachers with a pension from non-covered teaching who also worked SS-covered jobs had their Social Security reduced by WEP. The Social Security Fairness Act, signed January 5, 2025, repealed WEP (and GPO) for benefits payable after December 2023, so those teachers now get their full earned benefit.

What happens to my TRS pension if I leave teaching early?

Before vesting: you can withdraw your contributions. After vesting: you retain your accrued benefit, payable at retirement age. The employer contribution is forfeited if you leave before vesting.

How are teacher pensions calculated?

Most use a percentage per year of service times a final average salary. Texas TRS pays 2.3%, Illinois TRS 2.2% (capped at 75%), Georgia TRS 2.0%, and CalSTRS an age factor up to 2.4%. At 2.0% to 2.3%, a 30-year teacher with a $70,000 average salary earns $42,000 to $48,300 a year.

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