Updated September 3, 2026. Quick answer: Wisconsin Retirement System (WRS): instead of a conventional COLA, WRS recalculates an annuity adjustment every year that can be positive OR negative, floored so the Core annuity never drops below its guaranteed base, service credit can be purchased, and no DROP was found. Vesting takes five years of WRS creditable service.
Milwaukee city employees belong to a separate city system with its own rules: Milwaukee ERS retirement decisions.
Estimate a Wisconsin Retirement System benefit from age, service and final average earnings: WRS retirement calculator.
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? | Variable annuity adjustment: can be negative |
|---|---|
| Is the COLA compounded? | Effectively yes, within a protected floor |
| Vesting | 5 years of WRS creditable service |
| Buy service credit? | Yes |
| DROP? | None found |
| State | Wisconsin |
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
WRS does not run a conventional fixed-percentage COLA. Instead: “Your Core annuity is guaranteed for your lifetime and, by law, will never go below the Core (“floor”) (lowest payment limit).” “Payments may increase or decrease based on Core Trust Fund and Variable Trust Fund investment returns.” “Annuity adjustment rates are based on an assumed 5% effective rate of interest. They may be higher or lower, depending on whether actual fund performance is above or below 5%.” This is not a hypothetical: an ETF announcement on record shows a real year with “Core: 0% (no change) Variable: -10% (decrease).” Because a negative adjustment reduces the same balance a positive one grew, this functions as compounding on the current annuity within the protected Core floor, though ETF’s page does not use the word “compound” to describe it.
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How our partner relationships workBuying service credit
WRS lets members buy back “Forfeited Service” (after returning to WRS-covered employment for at least 3 complete, consecutive earnings periods), “Qualifying Service” (for members who began WRS service before 1973 as non-teachers), and “Other Governmental Service” (OGS) from federal, state, or local public employment including military time. “OGS calculations are based on several factors, including your age, years of WRS service and earnings, employment category and retirement date”; an online calculator gives unofficial forfeited-service estimates, with the official cost available only by contacting ETF directly.
Run your own numbers before deciding: some purchases never recover their cost, and the calculator shows which.
Vesting
For employees starting July 1, 2011 or later: “you must have 5 years of WRS creditable service,” where a year is earned by hours worked: “teachers need to work 1,320 hours and all other employees need to work 1,904 hours” to earn one year of service.
DROP
No DROP program was found on etf.wi.gov. WRS instead runs the annuity-adjustment mechanism above, plus a separate Wisconsin Deferred Compensation Program: a 457(b) savings plan, not a DROP.
DROP is rarer than it appears across the systems on this site: most have none.
Annuity payment options and the survivor choice
The Wisconsin Department of Employee Trust Funds (ETF) describes the usual WRS retirement benefit as a lifetime payment. ETF says “Most members will be eligible for a monthly lifetime payment.” Its page on how the benefit works adds that “In most cases a retirement benefit is paid as a monthly annuity payable for your lifetime.”
ETF says “Everyone who is eligible for monthly payments has three” life annuity options: For Annuitant’s Life Only, Life with 60 Payments Guaranteed and Life with 180 Payments Guaranteed. A fourth, the Joint and Survivor Annuity, applies to members who name a survivor. ETF explains that “A named survivor is one person who will receive a lifetime benefit upon your death if he/she survives you.” The joint and survivor choices listed are 75% Continued to Your Named Survivor, 100% Continued to Your Named Survivor, Reduced 25% on Death of Annuitant or Death of Your Named Survivor, and 100% Continued to Your Named Survivor with 180 Payments Guaranteed. For the general trade-off between a single-life and a survivor annuity, see single life versus joint and survivor pension.
ETF describes three possible outcomes at death, depending on the option chosen. One is that “The annuity stops, and no death benefit is payable to a beneficiary(-ies).” Another is that monthly benefits go to a beneficiary for the remaining months of a guaranteed period. The third is that a joint and survivor option “pays a named survivor for as long as he or she is living”.
The deadline matters. On a non-spouse survivor ETF says “if you choose a named survivor who is not your spouse, you can change this decision within 60 days after your first payment, but after that it is irrevocable”. More generally, ETF says “Once you make a choice, you only have 60 days to change it before it becomes permanent.” Where the survivor is a spouse, see also spousal consent to waive a joint and survivor annuity.
Members who retire early have one more choice. ETF says “If you are under age 62 when you retire, you may be eligible for an Accelerated Payment option.” The stated purpose is “to offer a higher benefit amount until age 62”, and ETF warns “Your WRS annuity payment automatically goes down permanently at age 62 when the temporary portion ends, even if you choose not to take your Social Security benefit.” In ETF’s words, “The more money you get before age 62, the less you get after 62.”
Members with employee additional contributions have separate choices. ETF lists a lump sum, a life annuity on the same lifetime options, or an annuity certain paid for 24 months, 60 months, 120 months, or a period the member chooses between 25 and 180 months, and notes that some restrictions apply and depend on account value.
| Item | Figure | Where ETF states it |
|---|---|---|
| Life annuity options for everyone eligible for monthly payments | 3 | ETF annuity payment options page |
| Joint and survivor options with a named survivor | 4 | ETF annuity payment options page |
| Guaranteed payments in the two guaranteed life options | 60 or 180 | ETF annuity payment options page |
| Window to change a non-spouse survivor choice, after first payment | 60 days | ETF annuity payment options page |
| Window to change an annuity choice before it becomes permanent | 60 days | ETF annuity payment options page |
| Accelerated Payment option: retiring under age | 62 | ETF annuity payment options page |
| Annuity certain terms for additional contributions | 24, 60, 120 months | ETF annuity payment options page |
What the pages read do not state: the size of the monthly reduction for any option, the factors used to price the guaranteed-period or survivor options, or a formula for the Accelerated Payment. Because no pricing factors are given, no computed example is shown here. The pages say the official Retirement Estimate and Application shows all the options and amounts a member may choose from.
Sources for this section:
- Wisconsin Retirement System, etf.wi.gov annuity-payment-options: https://etf.wi.gov/retirement/applying-retirement/annuity-payment-options
- Wisconsin Retirement System, etf.wi.gov how-wrs-retirement-benefit-works: https://etf.wi.gov/retirement/wrs-retirement-benefit/how-wrs-retirement-benefit-works
- IRS, Topic no. 413, Rollovers from retirement plans (irs.gov): https://www.irs.gov/taxtopics/tc413
- IRS, Topic no. 558, Additional tax on early distributions from retirement plans other than IRAs (irs.gov): https://www.irs.gov/taxtopics/tc558
Lump sum eligibility and rollover rules
WRS lets some members take a one-time lump sum in place of a monthly annuity, but ETF ties that choice to the size of the benefit. ETF says “If your benefit amount does not meet the required minimum amount, you will only be eligible for a one-time lump-sum payment.” It adds that eligibility “depends on the size of your For Annuitant’s Life Only benefit”, and that the limits “are determined by state statute as modified by federal law”.
For 2026 ETF gives the limits as “In 2026, the minimum amount is $278 and the maximum amount is $577.” The page then sets out three cases. Below the minimum, “you are restricted to a one-time lump-sum payment”. At or above the minimum but under the maximum, “you may choose between a lump-sum payment or a monthly payment”. Above the maximum, “you are not eligible for a lump-sum payment and may only take a monthly payment”.
A computed example from an assumed $400 monthly For Annuitant’s Life Only benefit, not a WRS figure: the assumed amount is a computed $122 above the $278 minimum and a computed $177 below the $577 maximum, so under the rule quoted above that member would be in the band where either a lump sum or a monthly payment may be chosen. The limits are stated for 2026 only, and the page gives no formula for converting a monthly annuity into a lump-sum amount.
On a lump sum, ETF says “If eligible, ETF will mail you the necessary documentation for a rollover to another qualified retirement plan.” ETF’s page on how the benefit works also addresses a lump sum on return to WRS employment: it says a member who “closed your account by taking a lump sum benefit” must meet the 75-day minimum break in service requirement.
The federal rules are in the IRS topic pages. On rollovers the IRS says “If a plan pays you an eligible rollover distribution, you have 60 days from the date you receive it to roll it over to another eligible retirement plan.” It also says “Any taxable eligible rollover distribution paid to you from an employer-sponsored retirement plan is subject to mandatory income tax withholding (generally at a rate of 20%), even if you intend to roll it over later.” The IRS says “The mandatory withholding doesn’t apply in a direct rollover.” It describes a direct rollover as one where “you have the payer transfer a distribution directly to another eligible retirement plan (including an IRA)”. See 20 percent withholding on a pension lump sum for how the withholding works.
A lump sum that is not rolled over can also carry an early distribution tax. The IRS says “the law imposes a 10% additional tax on certain early distributions from certain retirement plans”, and describes early distributions as those received “before reaching age 59” and a half, with listed exceptions, one of which is distributions made “after you separated from service with your employer after attainment of age 55”. Whether a given WRS payment meets an exception is not addressed by the WRS pages.
| Item | Figure | Where it is stated |
|---|---|---|
| 2026 minimum monthly annuity for a lump-sum choice | $278 | ETF annuity payment options page |
| 2026 maximum monthly annuity for a lump-sum choice | $577 | ETF annuity payment options page |
| Rollover deadline after receiving a distribution | 60 days | IRS Topic 413 |
| Mandatory withholding rate, generally | 20% | IRS Topic 413 |
| Additional tax on certain early distributions | 10% | IRS Topic 558 |
| Break in service after taking a lump sum | 75 days | ETF how the benefit works page |
What the pages read do not state: how a lump-sum amount is calculated for a member under the minimum, whether the 2026 limits change in later years, or the tax treatment of a particular WRS payment. The member’s Retirement Estimate and Application, ETF and a tax professional are the places to confirm. For a broader comparison of a lump sum with monthly pay, see pension lump sum versus monthly annuity break-even.
Sources for this section:
- Wisconsin Retirement System, etf.wi.gov annuity-payment-options: https://etf.wi.gov/retirement/applying-retirement/annuity-payment-options
- Wisconsin Retirement System, etf.wi.gov how-wrs-retirement-benefit-works: https://etf.wi.gov/retirement/wrs-retirement-benefit/how-wrs-retirement-benefit-works
- IRS, Topic no. 413, Rollovers from retirement plans (irs.gov): https://www.irs.gov/taxtopics/tc413
- IRS, Topic no. 558, Additional tax on early distributions from retirement plans other than IRAs (irs.gov): https://www.irs.gov/taxtopics/tc558
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
- WRS how the retirement benefit works
- WRS buying creditable service
- WRS annuity payments and adjustments
Read September 3, 2026.
Related public pension systems: New Mexico PERA · New Mexico ERB.
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.
Comparing plans across states or systems? Oklahoma TRS: COLA, Vesting, Buyback and DROP answers the same COLA, vesting and buyback questions for that pension.
Comparing plans across states or systems? Virginia VRS: COLA, Vesting, Buyback and DROP answers the same COLA, vesting and buyback questions for that pension.