TRS Illinois Retirement Mistakes to Avoid

Missing a deadline in the TRS retirement process can affect your pension, and some decisions cannot be reversed. Here are the mistakes Illinois educators make most often, and how to sidestep each one.

Missing the Optional Service Credit Payment Deadline

Every optional service purchase — out-of-state teaching, military credit, recognized private school service, approved leaves — must be paid in full before your effective retirement date. Not "in process." Paid. TRS cannot add service credit to your annuity calculation after that date, regardless of circumstances.

The cost compounds at 6% annual interest from the date contributions would have been due, so waiting costs real money. Request a formal cost statement from TRS Member Services as soon as you're within two years of retiring, and explore tax-deferred trustee-to-trustee transfers from your 403(b) or 457(b) to cover the balance without a taxable event.

Private school service has its own hard stop: applications for recognized non-public school credit must be filed on or before June 30, 2028.

Taking the Survivor Benefit Refund When You Shouldn't

Members who retire without an eligible dependent beneficiary can request a refund of their 1% survivor contributions — every dollar contributed since July 24, 1959. That refund feels like found money, but accepting it permanently waives all future monthly survivor benefit rights. If you later marry or acquire a dependent, your new spouse gets nothing from TRS when you die.

The only way to restore survivor coverage after taking the refund is to return to TRS-covered employment and earn at least one full year of creditable service. For most retirees, that's not a realistic path. If there's any chance your family situation could change, think carefully before cashing out.

Confusing the Reversionary Annuity With the Built-In Survivor Benefit

TRS retirement benefits already include a built-in survivor benefit funded by your mandatory 1% contribution. An eligible surviving spouse typically receives a monthly benefit equal to about 66.67% of your earned pension. The Reversionary Annuity is an additional optional election that permanently reduces your monthly pension to provide extra income to a designated dependent after your death.

Some educators elect a Reversionary Annuity without understanding that a built-in survivor benefit already exists, permanently reducing their monthly income for coverage they already had. This election is irrevocable once submitted — the only exception is a "pop-up" restoration if your designated beneficiary predeceases you.

Prearranging Return-to-Work Before Retiring

It's tempting to line up substitute teaching or a coaching gig before you officially retire. But TRS treats prearranged post-retirement employment as evidence that you never actually separated from service. This can void your retirement annuity and force you to repay benefits.

The current limit allows up to 120 days or 600 hours of TRS-covered work per school year, extended through June 30, 2029. But you cannot teach in a TRS-covered position during the same school year you retired, and starting January 1, 2027, the 30-day separation rule requires a complete break from all roles with your last employer — not just TRS-covered positions, but coaching, bus driving, and club sponsoring too.

Ignoring the 6% Salary Cap Rule

If your creditable earnings in any year used for your Final Average Salary calculation increase by more than 6% over the previous year, your employing school district — not you — owes TRS a lump-sum actuarial penalty. Some districts respond by capping their retirees' last-year raises, restructuring contracts, or reducing supplemental pay.

This doesn't directly cut your pension, but it can create friction with your district's business office. Know where you stand before your final contract negotiations, especially if you're expecting a large raise, stipend increase, or administrative role change in your last years.

Still Relying on Pre-2025 WEP and GPO Information

The Social Security Fairness Act, signed January 5, 2025, fully repealed both the Windfall Elimination Provision and the Government Pension Offset for benefits payable from January 2024 onward. Any TRS handbook, union publication, or advisor presentation that still describes these offsets as active law is outdated. If you never applied for Social Security because of these provisions, you need to file a new claim with SSA — the adjustment is not automatic for people who never filed.

The Retirement Guide Walks Through Every Deadline

The TRS Illinois Retirement Guide puts these deadlines and irrevocable decisions in a 12-month countdown, so you can see exactly when each one locks in — and what to verify before it does.

See more Illinois guides →