Updated September 3, 2026. Quick answer: Teachers’ Retirement System of Louisiana (TRSL): the COLA (called a “Permanent Benefit Increase”) is discretionary, tiered by funding level and gated on board recommendation plus legislative approval, service credit can be purchased, and TRSL runs an open DROP program, up to three years. Vesting takes five years of service credit.
Provisional. This page is published at medium confidence. The specific points that could not be confirmed are listed under What could not be verified below, and are named rather than smoothed over.
The verdicts
| Is the COLA granted? | Discretionary (Permanent Benefit Increase, board- and legislature-gated) |
|---|---|
| Is the COLA compounded? | Not stated |
| Vesting | 5 years of TRSL service credit |
| Buy service credit? | Yes |
| DROP? | Yes, open, up to 3 years |
| State | Louisiana |
Those first two rows are separate questions and are routinely confused. Whether you get an increase at all is one thing; whether it compounds is another. A system can grant an increase automatically every year and still compute it against your original benefit forever, which is a materially worse deal than it sounds.
The COLA
“A PBI is a permanent benefit increase, commonly referred to as a cost-of-living adjustment or COLA.” It is payable to eligible retirees and beneficiaries on July 1, subject to TRSL Board recommendation and legislative approval, provided there are sufficient funds in the TRSL Experience Account, which holds funds dedicated to PBIs. It applies only to a capped slice of the benefit: “PBIs are calculated only on the first $60,000 of the retiree’s annual retirement benefit.” This limit itself rises each year by the increase in the CPI-U for the preceding year, if any. The percentage granted is tiered by TRSL’s funded ratio and investment return, from none below 55% funded up to the lesser of 3% or CPI-U at 85%+ funded with an 8.25%+ return year; no PBI was granted in 2023, 2024, or 2025. A separate, member-elected option exists outside the ad hoc PBI: the Annual COLA Option lets a retiring member accept an actuarially reduced benefit in exchange for “a self-funded, guaranteed annual 2.5% cost-of-living adjustment.”
Buying service credit
TRSL purchasable service includes refunded service credit, sick and annual leave, legal and sabbatical leave, substitute teaching, involuntary furlough or strike, local/state public employment, non-TRSL charter school service, in-state private school and out-of-state public school teaching, and military/USERRA service. Most purchases require a nonrefundable actuarial calculation fee (“$200” as of January 2024, “$50” for each additional calculation) and payment by lump sum or rollover, except military and USERRA purchases, which allow installments over up to 36 months.
Run your own numbers before deciding: some purchases never recover their cost, and the calculator shows which.
Coordinate this with your overall retirement plan
An adviser can help weigh a COLA that may not compound, a service-credit purchase that may never pay for itself, or a DROP election against the rest of your retirement plan, but that does not replace the numbers in your own member statement.
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Vesting
“With five years of TRSL service credit, you are vested and may be eligible for the following valuable TRSL benefits:” survivor benefits for your family, a deferred retirement option that lets you leave your contributions with TRSL and apply once you reach eligibility age, and disability retirement for members who become permanently disabled while actively employed and meet eligibility requirements. A separate 10-year threshold applies only to disability-retirement eligibility for members who joined any Louisiana public system after January 1, 2011, not to standard vesting.
DROP
TRSL’s DROP is real and currently open, not closed: “DROP is an optional program that allows you to freeze your regular monthly retirement benefit and have it deposited into a separate account, while still working and drawing a salary from a TRSL-reporting agency or school… You can participate in DROP for up to three years, starting on the date you first become eligible to enter the program.” A separate, mutually exclusive option, the Initial Lump-Sum Benefit, is available only to members who have not used DROP.
DROP is rarer than it appears across the systems on this site: most have none.
What could not be verified
REFUND TERMS: this page does not state what happens to your contributions if you take a refund instead of leaving your account with the system: that comparison was not independently researched for this system this session, and is left as an open gap rather than guessed from another system’s rule. Consult your own plan’s refund/forfeiture terms before deciding. Any additional field marked “not stated” in the verdicts table above was genuinely absent from the official materials read, not omitted for space.
Sources
- TRSL purchase service
- TRSL DROP program
- TRSL Permanent Benefit Increase
- TRSL Member Handbook, Regular Plan and Plan B
Read September 3, 2026.
Related public pension systems: Oregon PERS · Connecticut SERS.
General information drawn from each system’s own official published materials, not legal, tax or financial advice. Vesting, COLA and buyback rules are set by state statute and plan tier, differ materially by hire date, and can change by future legislation. This page cannot see your own member statement, which governs. We are not a law firm, a tax adviser, or a fiduciary, and this is not personalized advice.