TRS vs. 403(b) for Texas Teachers: How They Actually Work Together

Texas teachers often ask ‘TRS or 403(b)?’ — but that’s the wrong framing. TRS is your automatic pension; a 403(b) or 457(b) is how you save on top of it. You’re not choosing between them; you’re deciding how much extra to add. Here’s how the pieces fit.

TRS: your base pension

The Teacher Retirement System of Texas (TRS) is a defined-benefit pension. You contribute a set percentage of every paycheck (mandatory), the state contributes too, and at retirement you receive a guaranteed monthly benefit based on a formula: roughly years of service × 2.3% × your final average salary. You don’t pick investments and you can’t outlive it — but it also grows on a fixed schedule, not with the market.

403(b) and 457(b): saving on top

TRS alone usually replaces only part of your income, so most teachers save more through a 403(b) (a 401(k)-style plan for schools) and often a 457(b). You choose the investments, and the money is fully yours and portable. Watch the fees — school 403(b) menus are notorious for high-cost annuity products, so favor low-cost index options where available.

The Social Security wrinkle (and the 2025 repeal)

Many Texas school districts don’t participate in Social Security, so teachers may not earn Social Security on their teaching wages. Historically, the WEP and GPO rules also reduced any Social Security a teacher earned from other jobs (or a spouse). In January 2025, the Social Security Fairness Act repealed WEP and GPO, restoring those benefits for affected public workers — a meaningful change for many TRS members. Because your teaching income may still not build Social Security, the extra saving in a 403(b)/457(b) carries more weight than it does for private-sector workers.

So how much should you add?

A reasonable approach: contribute to your 403(b)/457(b) up to any district match first, then work toward saving 10–15% of pay across TRS-plus-supplemental. If your district offers both a 403(b) and a 457(b), you can use both — each has its own contribution limit, letting you shelter far more than most workers.

Educational information only, not financial or tax advice. Figures are current for the tax/plan year noted and can change — always confirm the latest at the official source (IRS.gov, SSA.gov, or your plan) before acting.

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