Updated September 3, 2026. Quick answer: Oklahoma Public Employees Retirement System (OPERS): the COLA is discretionary; only the Legislature can grant one, service credit can be purchased, and OPERS has no DROP: it instead runs a permanent-multiplier program called “2.5% Step-Up,” which is not the same mechanism. Vesting takes eight years of credited service, six of which must be full-time-equivalent employment.
Other Oklahoma systems run on their own rules: Oklahoma OPPRS retirement decisions and Oklahoma OLERS retirement decisions.
Oklahoma’s firefighters system runs on separate rules: Oklahoma Firefighters Pension retirement decisions.
Oklahoma City non-uniformed employees belong to a separate city system with its own rules: Oklahoma City ERS retirement decisions.
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 (Legislature has sole authority) |
|---|---|
| Is the COLA compounded? | Not stated |
| Vesting | 8 years of credited service |
| Buy service credit? | Yes |
| DROP? | No, but has a separate “2.5% Step-Up” multiplier program |
| State | Oklahoma |
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
“OPERS cannot grant a COLA on its own; the Oklahoma Legislature has sole authority to provide COLAs for OPERS and URSJJ members.” How OPERS internally plans for COLA costs between legislative actions was not found in the materials reviewed for this system. The most recent legislated round applies to members retired and receiving benefits as of June 30, 2026: those retired on July 1, 2006 or earlier get a 6% increase, those who retired between August 1, 2006 and July 1, 2016 get a 3% increase, and those who retired after that get no adjustment, effective on the benefit deposited on November 30, 2026.
Buying service credit
OPERS purchasable service includes military service (free for members who joined before July 1, 2000; actuarial cost after that date; USERRA buyback for military-absence gaps), withdrawal payback to restore prior service credit, and prior service transferred from several other Oklahoma retirement systems (Firefighters, Police Pension, Uniform Retirement System for Justices and Judges, Law Enforcement, and Teachers’). The exact cost formula for these purchases was not found in the materials reviewed for this system.
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.
Before you start, what actually happens. The form is run by Kapitalwise, our advisor-matching partner. Kapitalwise sends your details to advisers who pay for the introduction, so expect calls and texts. Clear Money Guide is paid when you submit the form, whether or not you hire anyone. The matching service is free to you and there is no obligation to hire anyone.
The Kapitalwise form opens here. You stay on this page.
What happens when you press the button
It requests contact details and phone verification by text. Nothing loads and nothing reaches Kapitalwise until you press the button. Submitting the form does not guarantee an adviser or a match. This matching form is not tax or legal advice.
Vesting
“A member automatically vests once they have eight years of credited service, six years of which must be full-time-equivalent employment.” The vesting page reviewed did not break out any hire-date tiering, so whether tiers exist is unverified.
DROP
OPERS has no Deferred Retirement Option Plan. It runs a different, permanent-multiplier program called “2.5% Step-Up”: “The 2.5% Step-Up program allows you to increase your OPERS benefit by paying more each pay period. Currently, the extra contribution is 2.91% of your compensation.” OPERS’s standard benefit computation factor is 2.0%; Step-Up participants instead get a 2.5% factor on “full years of participating service earned after starting Step-Up.” “Keep in mind, once you join in Step-Up, you are always in the program. You cannot stop or pause the added Step-Up contribution.” This lacks a DROP’s defining feature (a separate account that accrues while a member keeps working); it is instead a permanent benefit-formula increase funded by higher ongoing contributions.
DROP is rarer than it appears across the systems on this site: most have none.
Choosing a survivor option at OPERS retirement
OPERS frames the payment choice this way: “At retirement, you will have a choice between four retirement benefit options.” The page adds that “The options differ in what happens to the benefit after you pass away.” The four are Maximum, Option A, Option B and Option C.
Under the Maximum option, OPERS says “you will receive full, unreduced benefits.” The trade is stated this way: “No further monthly benefits are paid.” For a married member the page also states that “your spouse must consent to your choice of the Maximum benefit.”
Option A and Option B are the two joint and survivor choices. Under Option A, “one-half of the member’s reduced retirement benefit will be paid to the surviving joint annuitant for his or her lifetime”. Under Option B, “the same reduced monthly gross benefit will be paid to your surviving joint annuitant for his or her lifetime”. OPERS describes the cost of Option B plainly: “the retiree will absorb a larger reduction to their monthly benefit”. For the general trade-off between a single-life and a survivor payment, see single life versus joint and survivor pension.
Who can be named is limited. OPERS says “Your joint annuitant must be a specific person” and, for Option B, a person “no more than 10 years younger than you, unless that person is your spouse”.
Marriage changes the default. OPERS says “You must retire, and name your spouse, under Option A or B if you are married at retirement” and continues with “unless your spouse consents to you choosing a different option”. A spouse who consents to waive a survivor annuity is discussed on the spousal consent page.
The election is hard to undo. OPERS states “Your chosen retirement benefit option may not be changed on or after the effective retirement date.” If a joint annuitant dies first, the member must give OPERS a death certificate and “you will begin receiving benefits under the Maximum benefit option.” The page also says “No other person may be substituted.”
| Item | Figure | Where OPERS states it |
|---|---|---|
| Option A reduction factor, age 62, annuitant two years younger | 92.16% | OPERS retirement options page |
| Option A approximate monthly benefit on $1000 | $921, with about $460 to the joint annuitant | OPERS retirement options page |
| Option B reduction factor, same ages | 85.46% | OPERS retirement options page |
| Option B approximate monthly benefit on $1000 | $855, continuing at the same amount | OPERS retirement options page |
| Option C reduction factor, age 62 | 97.19% | OPERS retirement options page |
| Option C approximate monthly benefit on $1000 | $972, to the beneficiary only within the first 10 years | OPERS retirement options page |
OPERS gives each example on a $1000 normal gross benefit. A computed example from an assumed $2,000 monthly Maximum benefit, not an OPERS figure: using the Option A factor of 92.16%, the computed result is $2,000 multiplied by 92.16 and divided by 100, or a computed $1,843.20 a month for the retiree and a computed $921.60 a month to the joint annuitant after the retiree dies. Using the Option B factor of 85.46%, the computed result is $2,000 multiplied by 85.46 and divided by 100, or a computed $1,709.20 a month, paid at that same amount to the survivor. The computed gap between the two retiree payments is $134.00 a month. The example holds only for a retiree age 62 with a joint annuitant two years younger.
What the pages read do not state: the factors for any ages other than 62 (OPERS points to separate reduction factor charts, which are not reproduced in the archived text), how the factors were derived, or how a member can check that a particular spouse consent has been accepted. The reduction charts and OPERS itself are the places to confirm a real figure.
Sources for this section:
- Oklahoma Public Employees Retirement System, opers.ok.gov retirement-options: https://www.opers.ok.gov/retirement-options/
- Oklahoma Public Employees Retirement System, opers.ok.gov withdrawals: https://www.opers.ok.gov/withdrawals/
Leaving OPERS before retirement: vest or withdraw
The OPERS withdrawals page covers a different decision: leaving before retirement. It opens with a limit: “While working for an OPERS employer, you may not take a withdrawal or loan from the contributions paid to OPERS.” Of members who leave, OPERS says “In most cases you do not have to take out your contributions.” The general trade-off between taking a refund and leaving the money in is on pension refund versus leaving it.
OPERS sets the two paths side by side. A member who leaves contributions in place and has vested “Could receive a future lifetime benefit.” A member who withdraws gets the opposite: “No lifetime benefit.” and “Service is canceled out, including prior service.” OPERS adds that the withdrawing member will “give up any monthly payment OPERS would have made toward your health insurance at retirement.”
The amount is limited to the member’s own money. OPERS says “you will receive a one-time payment of all your employee contributions into OPERS less applicable taxes and penalties.” It also says “No interest or increased value is paid on employee contributions.” and “The employer contributions always stay in OPERS.”
For a vested member the choice is exclusive. OPERS says “By law, you must choose between accepting the vested benefit or proceeding with a withdrawal.” It will also “calculate the amount of your vested, monthly lifetime retirement benefit before processing your withdrawal payment.” Eight years of credited service is the vesting threshold the page names.
Timing is fixed by law. OPERS says “You cannot return to work for any OPERS employer for four months after your termination.” and “At the earliest payment may be made in the fifth month after separation.” Returning inside that window has a cost: “You will be required to pay back the full amount of any ineligible withdrawal payment plus applicable interest.”
On tax, OPERS states “A withdrawal may be subject to taxes if it is not rolled over to another tax-deferred account.” For payments made directly to the member, OPERS says it “is required to withhold 20% for federal taxes” and, “for Oklahoma residents, 4.5% for state taxes.” A member under 59½ “may be subject to a 10% federal tax penalty for early withdrawal.” For the federal withholding rule in general, see the 20 percent withholding page.
A member who later returns can try to undo the withdrawal. OPERS says “You may restore your withdrawn service credit, if eligible, by paying the sum of your withdrawn contributions plus interest.” A member who does not restore starts as a new member “with no service credit” under the rules in place at the most recent hire date.
| Item | Figure | Where OPERS states it |
|---|---|---|
| Years of credited service for vesting | 8 years | OPERS withdrawals page |
| Waiting period after termination | 4 months | OPERS withdrawals page |
| Earliest payment | fifth month after separation | OPERS withdrawals page |
| Federal withholding on a direct payment | 20% | OPERS withdrawals page |
| Oklahoma withholding for residents | 4.5% | OPERS withdrawals page |
| Possible federal early withdrawal penalty | 10% under age 59½ | OPERS withdrawals page |
No computed example is given, because the pages read set out no formula for the payback interest and no interest rate. What the pages read do not state: the rate of interest on a withdrawal payback, the dollar cost of restoring service for any given member, or a way to compare the withdrawal amount against the value of the vested lifetime benefit. OPERS points to its Withdrawal Payback Calculator and benefit estimator for those figures.
Sources for this section:
- Oklahoma Public Employees Retirement System, opers.ok.gov retirement-options: https://www.opers.ok.gov/retirement-options/
- Oklahoma Public Employees Retirement System, opers.ok.gov withdrawals: https://www.opers.ok.gov/withdrawals/
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
- OPERS vesting
- OPERS 2026 COLA legislative update
- OPERS 2.5% Step-Up
- OPERS Pre-Retirement Seminar Workbook 2025
Read September 3, 2026.
Related public pension systems: New Jersey PERS · New Jersey TPAF.
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.