Updated October 30, 2026. Quick answer: The Montana Sheriffs’ Retirement System offers four payment options at retirement. Option 1 pays the most and leaves a beneficiary only any account balance not yet paid out. Options 2, 3 and 4 cut the monthly amount to protect a contingent annuitant. Generally, the choice cannot be changed once the first payment is accepted. The handbook’s sample shows $1,650 under Option 1 and $1,496 under Option 2. Vesting takes five years, and a refund forfeits the right to any future benefit. A refund above $200 paid directly carries 20% federal withholding.
More on public pension COLAs for 2027: the Montana Sheriffs’ Retirement System COLA for 2027 and the 3% or 1.5% GABA.
What this page covers and what it does not
This page works from three documents: the Sheriffs’ Retirement System (SRS) Member Handbook, Rev. 06/2026, published by the Montana Public Employee Retirement Administration (MPERA), and the text of two sections of the Montana Code Annotated 2025 (19-7-1001 on optional forms of benefits and 19-7-502 on early retirement). The handbook is a summary and says so: “If the content of this handbook conflicts with state law or administrative rules, the law or rules will apply.” Where the statute text and the handbook differ, both are shown below.
The system covers sheriffs, undersheriffs, deputy sheriffs, certain Department of Justice investigators and detention officers. Montana’s other large systems have their own pages: Montana PERS retirement decisions and Montana TRS retirement decisions.
The documents read describe no deferred retirement option program and no partial lump sum at retirement, so none is covered. The lump sums that do appear are a refund of contributions and an Option 1 account balance paid to a beneficiary.
When retirement is possible and how far ahead to start
Vesting comes first: the handbook says a member is vested “after you accumulate five years of membership service”. Then: “If vested and at least age 50, you may terminate service and apply for monthly retirement benefits.” For a service retirement, the handbook divides members by hire date. “Members hired on or before June 30, 2023, are eligible for service retirement benefits when they complete at least 20 years of membership service at any age.” “Members hired on or after July 1, 2023, are eligible for service retirement upon completing at least 20 years of membership service and reaching age 50.”
The statute text adds an early route. “A member with at least 5 but less than 20 years of membership service may retire with a retirement benefit commencing no sooner than the first day of the month following the member’s 50th birthday.” Confirm the amount with MPERA first.
The monthly service retirement is calculated as “Years of Service Credit x 2.5% x HAC”, where HAC is highest average compensation. That formula amount is the Option 1 amount from which the other options are built. On timing: “At least three months before you plan to retire, contact us for an official defined benefit retirement estimate.” “At least 30 days before you plan to retire, you must complete and submit to MPERA the retirement application forms that are included with your benefit estimate.” The option election is part of this paperwork, so the estimate is the moment to price each option.
The election at retirement: four options and what each pays a survivor
The handbook frames the choice this way: “SRS offers four benefit payment options for service and disability retirements.” “The reduction is based upon the option you choose, your age, and the age of your named contingent annuitant.” The statute text makes Option 1 the default: “If the member does not elect an optional retirement benefit pursuant to subsection (2), the member’s retirement benefit is known as an option 1 benefit.”
| Option | Retiree’s monthly amount in the handbook’s sample | What it does for a survivor |
|---|---|---|
| Option 1 | $1,650 a month for life | No monthly benefit; any account balance not yet paid out goes to the designated beneficiary |
| Option 2 | $1,496 a month for life | The same monthly amount for the rest of the contingent annuitant’s life |
| Option 3 | $1,569 a month for life | One-half of the monthly amount for the rest of the contingent annuitant’s life (a computed $784.50 on this sample) |
| Option 4, 10-year certain | $1,644 a month for life | The same benefit for the balance of the 10-year period, if the retiree dies inside it |
| Option 4, 20-year certain | $1,623 a month for life | The same benefit for the balance of the 20-year period, if the retiree dies inside it |
The amounts come from the handbook’s own sample, which shows the formula for each option, for example “$1,650 x Option 2 factor = $1,496 per month” The handbook labels these as illustrations: “These calculations are for educational purposes only and do not cover all scenarios.” An official MPERA estimate is the only source for a real figure.
A computed example from the handbook’s sample amounts, not a figure for any particular member: Option 2 pays a computed $154 a month less than Option 1, which is 9.3% of the Option 1 amount (the difference divided by $1,650). Option 3 pays $81 a month less, or 4.9%. The smaller cut buys the survivor half as much, a computed $784.50 a month on the sample. For the general trade, see single-life versus joint-and-survivor pension.
Option 1: the largest check, with an account balance as the only backstop
Option 1 is the single-life choice. “Option 1 provides a monthly benefit for your lifetime only and is the largest monthly amount you can choose.” “Upon your death, your designated beneficiary will receive any balance left in your account.” “That balance will be the amount that was available at retirement, minus the total benefits already paid to you.” “All Option 1 monthly benefit payments end upon your death.”
A computed example from assumed figures: the handbook’s sample retiree has a balance at retirement of $79,796. If that retiree died after 24 monthly payments of $1,650 (a total of a computed $39,600, ignoring any annual increases), the balance minus that total would leave a computed $40,196 for the designated beneficiary. After enough payments the balance is gone, and the check simply stops at death. A retiree whose spouse depends on the income should treat Option 1 as a choice that leaves that person with no monthly benefit.
Options 2 and 3: a continuing benefit for a contingent annuitant
Option 2 passes the full amount on. “When you die, your contingent annuitant receives the same monthly benefit for the rest of their life, subject to annual benefit increases.” Option 3 passes half: “When you die, your contingent annuitant receives one-half of that amount for the rest of their life, subject to annual benefit increases.” “However, because the contingent annuitant receives only one-half of your benefit, your Option 3 benefit would be larger than the Option 2 benefit.”
Option 2 has an age limit for a contingent annuitant who is not a spouse. “According to IRS regulations, if the age difference between you and your non-spouse contingent annuitant is greater than 10 years, you may not select Option 2.” “This limit does not apply to your spouse.” A retiree who wants to protect a much younger non-spouse should confirm with MPERA whether Option 2 is open to them (the statute wording is compared below).
Whether a spouse is asked to consent to a choice that gives up a survivor benefit is not addressed in the documents read; see spousal consent to waive a joint-and-survivor annuity and confirm the SRS form requirements with MPERA.
Option 4: a guaranteed period instead of a lifetime survivor benefit
Option 4 works differently. “Option 4 provides a continuing benefit to one or more contingent annuitants in the event of your death before the end of a period certain.” “Payments to the contingent annuitant(s) will stop when the guaranteed period ends.” The retiree is paid for life in every case. The period is 10 or 20 years, with age limits at retirement. For the 10-year period: “You must be age 75 or younger when you retire to be eligible for this benefit.” For the 20-year period: “You must be age 65 or younger when you retire to be eligible for this benefit.”
A computed example from assumed figures: if the sample retiree chose the 10-year period at $1,644 a month and died after four years, six years would remain. Six years of 12 monthly payments at $1,644 is a computed $118,368 paid to the contingent annuitant or annuitants, before the annual increases the handbook says apply. Nothing would be paid to anyone after the retiree’s death if the retiree outlived the 10 years.
Option 4 is looser after retirement: “You can change your Option 4 contingent annuitant designation after retirement at will.”
What cannot be undone, and the narrow ways to change
“Generally, once you receive and accept your first benefit payment, you cannot change your retirement option.” Before the first payment the application must be on file: “The member or the designated beneficiary who elects an optional retirement benefit under subsection (2) shall file a written application with the board prior to the first payment of the benefit.”
After retirement a change is possible only for an Option 2 or Option 3 retiree. “There are only two circumstances under which you can change your Option 2 or Option 3 election and/or contingent annuitant.” The two circumstances are these: “your original contingent annuitant dies”; or “you and your contingent annuitant divorce and there is no Family Law Order in place giving your contingent annuitant the right to receive part of your benefit”. Under either one the retiree may choose among three paths: “revert to the higher Option 1 retirement benefit that was available at the time of your retirement, plus any guaranteed annual benefit adjustments (GABA) you have received”; “change your benefit option and name a new contingent annuitant”; or “keep the same option and name a new contingent annuitant”.
There is a deadline and a price. “To change your optional form of benefit or contingent annuitant, you must designate a new contingent annuitant and/or option in writing within 18 months of the death of or divorce from the prior contingent annuitant.” And: “your retirement benefit calculation will change if you select a new option or new contingent annuitant, because the calculations are based on your age and your new contingent annuitant’s age at the time of the election”. The documents read describe no change for an Option 1 retiree.
The documents read describe no way to correct an option election after the first payment beyond these.
Where the sources disagree
The handbook and the statute text state the Option 2 age limit differently. The handbook gives a flat rule: “According to IRS regulations, if the age difference between you and your non-spouse contingent annuitant is greater than 10 years, you may not select Option 2.” The statute text uses an adjusted figure: “This option may be the chosen benefit only if the adjusted age difference between the member or designated beneficiary and the contingent annuitant, other than the member’s or designated beneficiary’s spouse, is 10 years or less.”
The handbook speaks of the raw age gap, while the statute text defines an adjusted gap that is reduced for a member under 70. The handbook says the law controls where they conflict. Confirm the calculation for a real couple with MPERA before the Option 2 form is signed.
Leaving before retirement: refund or leave the money in
A member who leaves covered work before retiring has a separate decision. “You may withdraw your contributions (plus interest) if you leave SRS-covered employment and don’t retire.” “Employer contributions are not refundable.” “If you withdraw your contributions, you will lose your right to any future retirement benefit.”
Vesting changes the options. “If you withdraw your accumulated contributions, you are no longer vested, and you give up your right to any SRS benefits.” For a vested member, leaving the money is allowed: “Vested members can leave accumulated contributions on account to continue to earn interest and later receive a retirement benefit.” The general trade is covered in pension refund versus leaving it.
For members who are not vested, the handbook describes mandatory refund rules. For the middle band: “If you have between $200 and $1,000 in accumulated contributions, you can request a refund application from MPERA.” “You can request a lump-sum payment be sent directly to you, or you can roll over your contributions to another eligible retirement plan.” The deadline matters: “The application must be returned within 90 days of your termination.”
Taxes on a refund, and what a rollover changes
On withholding, the handbook says: “If you receive a refund greater than $200 directly, the IRS requires us to withhold 20% for federal income tax purposes.” The penalty is separate: “You may also be subject to an additional 10% penalty if you withdraw your account before you reach age 50.” A rollover is the way around both: the handbook says the taxable part of the refund can go “into an IRA or other eligible retirement plan immediately, as a direct rollover, or within 60 days”. For the general rule, see 20 percent withholding on a pension lump sum.
A computed example from an assumed $5,000 pre-tax refund paid directly, not an SRS figure: 20% withholding is a computed $1,000, leaving a computed $4,000 in cash. Rolling over the full $5,000 within 60 days would require finding the withheld $1,000 elsewhere, as the IRS material below explains.
What the IRS adds on tax
A refund or lump sum from a public pension is a distribution, so the IRS rules apply on top of SRS’s own. On withholding, the IRS says that a taxable eligible rollover distribution paid to you “is subject to mandatory income tax withholding (generally at a rate of 20%), even if you intend to roll it over later”, and that if you roll it over yourself “you’ll have to add funds from other sources equal to the amount withheld”. The handbook says the withholding applies to a refund paid directly, and that a direct rollover or a rollover within 60 days avoids it. The rollover clock, if the money is paid to you: “you have 60 days from the date you receive it to roll it over to another eligible retirement plan”.
On early distributions the IRS says “the law imposes a 10% additional tax on certain early distributions from certain retirement plans”. Its list of exceptions includes “Distributions made to you after you separated from service with your employer after attainment of age 55” and “Distributions made to a qualified public safety employee from a governmental plan”. Whether an exception fits a particular refund depends on your own plan and facts, so confirm it with a tax preparer before you take one.
Coming back: reinstating refunded service and buying other service
A refund is not always final. “We will consider you a new member without credit for the refunded service.” “You may reinstate the refunded service through a service purchase.” The price of reinstating: “To purchase the refund, you must repay the accumulated contributions you received and pay interest at the actuarial assumed rate of return in effect at the time of the repayment.” A member who may return to covered work should therefore ask MPERA for a cost statement before taking the refund.
Other service can be bought as well. “As an SRS member, you can purchase any service for which you are eligible, at any time before retirement.” “Cost statements are only valid for 30 days.” “You can pay for a service purchase in one lump sum within 30 days of the date of your cost statement or make monthly payments.” For a rough comparison before asking for a cost statement, see pension buyback calculator.
Benefit increases and working after retirement
“The Guaranteed Annual Benefit Adjustment (GABA) increases your retirement benefit every year if you are eligible.” The rate depends on the hire date: “If you were hired on or after July 1, 2007, you will be eligible for a 1.5% GABA.” The handbook sets 3% for members hired before July 1, 2007.
Working after retirement is tightly limited. “As a retiree, you may work in an SRS-covered position for less than 480 hours during a calendar year.” On earnings: “your retirement benefit will be reduced $1 for each $3 you earn over the limit”.
Death before retirement
Death before retirement is handled separately from the option election. The handbook lists choices for a beneficiary, the first being “a lump-sum payment of your accumulated contributions”. The others are set out in its death benefits section.
What this page could not settle
- The documents read do not print the Option 2, 3 or 4 factors, so the actual reduction for a particular age and contingent annuitant cannot be computed here; only the handbook’s single sample is shown.
- The documents read do not state whether a spouse must consent to an option that gives up a survivor benefit, or to a refund.
- The documents read do not state the interest rate credited on member contributions.
- The documents read do not describe a deferred retirement option program or a partial lump sum at retirement.
- No active-member count is stated here, because the plan-membership figures sit in the MPERA annual report, which this page does not cite.
Common mistakes
- Signing the option form and assuming it can be changed later; generally the choice cannot be changed once the first benefit payment is accepted.
- Choosing Option 1 for the largest check without noticing that a survivor receives only any remaining account balance, not a monthly benefit.
- Taking a refund after reaching vesting and not realizing that it ends the right to any future SRS benefit.
- Asking for a rollover after the refund is paid directly and not having other money to replace the 20% federal withholding.
- Naming a much younger non-spouse for Option 2 without checking the age rule with MPERA first.
Related on this site: Montana PERS retirement decisions, Montana TRS retirement decisions, single-life versus joint-and-survivor pension, pension refund versus leaving it, 20 percent withholding on a pension lump sum, pension buyback calculator and public pension retirement decisions by system.
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Answer againSources
- Montana Public Employee Retirement Administration (MPERA), Sheriffs’ Retirement System (SRS) Member Handbook (Rev. 06/2026): https://mpera.mt.gov/_docs/Handbooks/SRS.pdf
- Montana Code Annotated 2025, Title 19, chapter 7, section 19-7-1001, Optional forms of benefits, designation of contingent annuitant (statute text): https://archive.legmt.gov/bills/mca/title_0190/chapter_0070/part_0100/section_0010/0190-0070-0100-0010.html
- Montana Code Annotated 2025, Title 19, chapter 7, section 19-7-502, Retirement option (statute text): https://archive.legmt.gov/bills/mca/title_0190/chapter_0070/part_0050/section_0020/0190-0070-0050-0020.html
- 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
Sources: the primary documents linked above, read on October 30, 2026. General information from each system’s own published materials, not legal, tax or financial advice. Your own member statement and the system’s current rules decide your benefit, and a pension counsellor at the system or a fee-only adviser is the right place to confirm anything consequential.