Updated October 8, 2026. Quick answer: A Middlesex County Retirement System member retiring under Chapter 32 chooses Option A, B or C, and the choice cannot be changed once the retirement is effective. Option B pays approximately 1% to 5% less than Option A and leaves any unspent contributions to a beneficiary. Option C pays approximately 7% to 15% less and continues two-thirds of the allowance to one named person for life. A member who makes no choice is retired under Option B. Taking a refund after leaving ends membership, and 20% of the taxable part is withheld unless it is rolled over.
What this page covers and what it does not
This page works from five Middlesex County Retirement System (MCRS) website pages, its refund application, its Choice of Option at Retirement form, and the Massachusetts Public Employee Retirement Guide for members after April 2, 2012 that the state Public Employee Retirement Administration Commission (PERAC) wrote and MCRS posts, all read on October 8, 2026. The figures cover Groups 1, 2 and 4 and membership beginning on or after April 2, 2012; the website keeps a separate section headed “Superannuation Retirement (Membership Before April 2, 2012)”, noted where it matters. Every figure is from those documents or is a labeled computed example. Disability retirement is not covered. Neighboring systems are on Boston Retirement System retirement decisions and Massachusetts state retirement decisions.
When a pension can start
The guide says “If your position is classified in Group 1, you have at least ten years of creditable service, and are age 60 or older you are eligible to receive a superannuation retirement allowance”. It sets Group 2 at age 55 with ten years, and for Group 4 says “If your position is classified in Group 4 and you are age 55 or older, you are eligible to receive a superannuation retirement allowance”.
| Group | Service requirement | Minimum age |
|---|---|---|
| Group 1 | At least ten years of creditable service | 60 |
| Group 2 | At least ten years, plus 12 months in a Group 2 position immediately before retirement (website) | 55 |
| Group 4 | No minimum service in the guide; 12 months of Group 4 duties before retirement (website) | 55 |
The website’s post-2012 table also lists a second Group 4 row, at least 10 years of service at age 50. For membership before April 2, 2012, it gives “Your high 3-year salary average (regular compensation only)” and a minimum age of 55 for Groups 1, 2 and 4, with 20 or more years of service allowing retirement at any age.
How the allowance is calculated
The guide gives one formula: “Your Benefit Rate x Your Highest Five Year Average Annual Rate of Regular Compensation x Your Creditable Service = Retirement Allowance”. Age and group set the rate, and a second chart covers long careers: “If you have more than 30 years of creditable service, a slightly different benefit chart will be utilized”. The average runs over five years, and only regular compensation counts; the guide excludes “overtime” and “payment for termination, severance, dismissal”.
| Group 1 age | Group 2 age | Group 4 age | Rate, under 30 years | Rate, 30 or more years |
|---|---|---|---|---|
| 67 or older | 62 or older | 57 or older | 2.50 | 2.500 |
| 65 | 60 | 55 | 2.20 | 2.250 |
| 62 | 57 | 52 | 1.75 | 1.875 |
| 60 | 55 | 50 | 1.45 | 1.625 |
A computed example from assumed inputs, not an MCRS figure: a Group 1 member retires at 60 with 20 years of creditable service and an assumed $60,000 five-year average. At the printed rate of 1.45 for age 60, applied for each of 20 years to the $60,000 average, the allowance is a computed $17,400 a year, or a computed $1,450 a month before any option reduction.
The website sets a ceiling: “Your allowance cannot exceed 80% of the high 5-year salary average”. At the top rate, 2.5 times 32 years is a computed 80 percent, matching the website’s statement that “Group 1 reaches 80% at age 67 with 32 years of service”. Veterans get an add-on: “Veterans receive $15 per year of creditable service, up to a maximum of $300”.
The election: Option A, B or C
Every retiring member picks one of three options, which decide what a survivor receives.
| Option | What the member receives | What a survivor receives |
|---|---|---|
| Option A | The highest monthly allowance | No monthly survivor benefit; no payout of the remaining annuity balance |
| Option B | Approximately 1% to 5% less than Option A | Unspent accumulated contributions go as a lump sum to the beneficiaries of record; nothing if the account is used up |
| Option C | Approximately 7% to 15% less than Option A | Two-thirds of the allowance continues for life to one named beneficiary; pop-up to the Option A amount if that person dies first |
Option B keeps one flexibility the option itself lacks: “Although your option selection may never be changed, if you choose Option B you may change your beneficiary at any time after retirement”. The survivor page adds that “Members may name multiple beneficiaries and divide the benefit as desired”. The balance runs down, and the sources differ on how fast (see below).
Option C is the joint and last survivor option. “The monthly allowance you receive under Option C depends upon life expectancy factors for both you and your designated beneficiary”, and “The younger your beneficiary, the smaller your retirement allowance will be”. Eligible beneficiaries are limited to a spouse, an unremarried former spouse, a child, a parent or a sibling, and “You may not change your Option C beneficiary after your retirement becomes effective”.
A computed example from an assumed $2,000 monthly Option A allowance, not an MCRS figure: Option B at 1% to 5% less would pay between a computed $1,900 and $1,980 a month. Option C at 7% to 15% less would pay between a computed $1,700 and $1,860 a month, and the beneficiary would receive two-thirds of the allowance being paid at the member’s death, between a computed $1,133.33 and $1,240.00 a month. The real reduction depends on the ages involved, so the board’s estimate decides. The trade-off in general is at single-life versus joint-and-survivor pension.
What is irrevocable and the deadline
The option cannot be changed once retirement is effective: “You are not permitted under any circumstances to change your option selection after your retirement becomes effective”. If the Option C beneficiary dies first, the guide says “If your Option C beneficiary dies before you die, you will thereafter be paid the full retirement allowance you would have received had you elected Option A at the time your retirement allowance became effective”. The form says “You may change your Option selection before your retirement becomes effective by filing a new form”.
Failing to choose is itself a choice: “If you refuse or fail to select an option before the date your retirement becomes effective, the law provides that you shall be retired under Option B”.
For a married member, “A married member’s Choice of Retirement Option Form at Retirement must be signed by the member’s spouse to acknowledge the spouse understands the option chosen”. If the spouse has not signed, the board must notify the spouse by registered mail within fifteen days, and “Thirty days after the member’s spouse has been notified as provided above, the option will take effect”. See spousal consent to waive a joint and survivor annuity. The board can give a personalized estimate of each benefit, the form says.
Lump sums: what the documents describe
In the documents read, a lump sum appears only as the Option B payout, a death-before-retirement choice and the refund after leaving. The pages read do not describe a lump-sum retirement option, a partial lump sum or a deferred retirement option plan (DROP). The pension-or-cash decision for someone who has left is the refund decision below, framed generally at pension lump sum versus monthly annuity break-even.
Leaving before retirement: leave the money or take a refund
“You will become vested upon reaching 10 years of creditable service, allowing you to leave your retirement deductions on deposit and qualify for a future retirement allowance once you reach retirement age or older, even if no longer actively employed.” The guide lets a member leave the account in place: “You may choose to leave your account in the Retirement System to retain your rights in the event you again become a public employee and a member of a retirement system”. Interest is capped, though: “The interest that may be paid to you, if you later seek a refund, is limited to that which accrues during the first two years following your resignation”. See pension refund versus leaving it.
The website says members with 10 or more years “will receive 100% of the regular interest that has accrued in their annuity savings account”, while “Members with fewer than 10 years of creditable service will receive 3% interest on their accumulated total deductions”. The guide advises: “You should always seek counseling prior to withdrawing your funds.”
A refund ends membership: “Taking a refund of your total accumulated deductions terminates your membership in the retirement system”. On return, “If you rejoin the system later, you will be treated as a new member, and all benefit rules in effect at that time will apply”, and “Members who redeposit a refund and become active again must remain employed for at least two consecutive years to qualify for retirement”. For members who joined before April 2, 2012, the form warns of “An increase in the salary average period used in the retirement benefit calculation formula from 3 years to 5 years”.
Who cannot take a refund, and the paperwork
The website says a member cannot request a refund when already retired, an active member of any Massachusetts contributory system, on an official leave of absence, receiving workers’ compensation benefits, seeking to be restored to a position, or accepting a position governed by G.L. c. 32. The form says “Your employer must certify the termination of your employment, that you owe no obligation to the employer under an employee benefit plan, and sign this application”. On delivery, “Photocopies, faxes, and scans sent via email will not be accepted”. The MCRS cover letter says “it takes approximately 60 days from receipt of your COMPLETED application for your refund check to be issued”.
How a refund is taxed and paid
The website says the non-taxable part is “Equal to contributions made before January 12, 1988, and buybacks of prior service”, and the taxable part is “Equal to contributions made on or after January 12, 1988, plus accrued interest”. It also says “20% of taxable contributions and interest is withheld if paid directly to you”, and “You may roll funds over into a tax-deferred account, such as an Individual Retirement Account (IRA), to avoid immediate withholding”. It warns: “The IRS may impose a 10% penalty for early withdrawals.”
A computed example from an assumed $10,000 taxable refund paid to the member, not an MCRS figure: 20% of $10,000 is a computed $2,000 withheld for federal tax, leaving a computed $8,000 in cash before any further tax or penalty. See 20% withholding on a pension lump sum. State treatment is at Massachusetts retirement taxes and does Massachusetts tax pensions.
Buying service credit
The website says “Purchased service is added to your total creditable service for vesting and retirement benefit purposes”, and “you may rollover funds from deferred compensation or tax-deferred plans with no penalties”. Military service: “Eligible veterans may purchase up to 4 years of retirement credit for active military service”; “The cost of this service is 10% of your salary when you last became a member of a retirement system, per year purchased”, and “no interest is charged”.
To buy back a refunded period, the website says “Actuarial interest applies”. Members who started on or after April 2, 2012 and took a refund have “1 year from re-entry to apply and pay at a lower interest rate”; “After 1 year, the higher actuarial interest rate applies”. The guide describes buyback interest inside one year as one half of the system’s assumed actuarial interest rate. MCRS’s own rate is not stated in the pages read. See the pension buyback calculator sets up the break-even.
Death before retirement
For a death not related to the job, MCRS describes two choices. One is a lump sum: “You may name one or more beneficiaries to receive a one-time payment of your accumulated total deductions in your annuity savings account”. The other, Option D, is a monthly benefit: “This option provides a monthly allowance to a qualified beneficiary, calculated as if you had retired under Option C on the date of death”. Its eligible beneficiaries: “Eligible beneficiaries include your spouse, child, former spouse (if not remarried), parent, or sibling”. When an Option D allowance is paid it lists “$120/month for the one child”.
Cost-of-living adjustments
The guide says “Cost-of-Living Adjustments (COLAs) are not automatic”; “The retirement boards then can grant a COLA, but not over 3%”. The pages read do not state whether MCRS has granted a COLA in any year, so a retiree should ask the board.
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 MCRS’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”. MCRS’s refund form describes the same 20% withholding on a direct payment and offers a direct rollover as the alternative. 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” if the employee separated from service during or after the year they attained age 50 or 25 years of service under the plan, whichever is earlier. 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.
Where the sources disagree
First, the Option B depletion timeline: the guide says “your deductions are used up within eight to twelve years of your retirement, depending upon your age at retirement”, while the MCRS form says “the contributions comprising the annuity account will be depleted within approximately twelve to fifteen years depending upon your age at retirement”. Both documents are posted by MCRS, so the board should say which figure it uses.
Second, refund interest for short service. The website says “Members with fewer than 10 years of creditable service will receive 3% interest on their accumulated total deductions” with no split between voluntary and involuntary exits, while the guide gives 3% for a voluntary exit with less than ten years and 100% of regular interest to anyone involuntarily terminated. For an involuntary exit under ten years the two differ.
Third, the 80% ceiling. The website’s post-2012 section says “Your allowance cannot exceed 80% of the high 5-year salary average”, but the guide’s restrictions section says “The superannuation retirement allowance of any member may not exceed 80% of his or her three-year average annual rate of regular compensation”, although the same guide’s formula uses a five-year average.
What this page could not settle
- The pages read do not state how much Option B or Option C reduces a particular member’s allowance; they give approximate ranges, and the form says the Option C amount depends on both ages.
- The pages read do not describe a lump-sum retirement option, a partial lump sum or a DROP.
- The pages read do not state MCRS’s own assumed actuarial interest rate, the regular interest rate credited to accounts, or whether MCRS has granted a COLA.
- The website lists a Group 4 row at age 50 with at least 10 years that the guide does not; the pages read do not say who it covers.
- The guide’s 30-year rate chart prints 2.357 at the Group 1 age 66 line, out of step with the 0.125 steps in the rest of the column; the board should confirm the rate it applies.
- The pre-2012 age factor table, the group percentage charts, the benefit estimator, the PERAC survivor guides, disability retirement, working after retirement, the Social Security interaction and retiree health insurance were not examined.
- M.G.L. c. 32 was seen only through these documents, some of which carry earlier revision dates.
Common mistakes
- Assuming a choice can be revisited after the retirement date; both the guide and the form say it cannot.
- Naming an Option C beneficiary and expecting to replace that person later; only the pop-up is available if the beneficiary dies first.
- Taking a refund without weighing that membership and the right to a pension end, and that a return later makes the member new.
- Expecting the full refund check; 20% of the taxable portion is withheld unless rolled over.
Related on this site: Boston Retirement System retirement decisions, Massachusetts state retirement decisions, Massachusetts retirement taxes, does Massachusetts tax pensions, pension refund versus leaving it, single-life versus joint-and-survivor pension, pension buyback calculator, 20% withholding on a pension lump sum and public pension retirement decisions by system.
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Answer againSources
- Middlesex County Retirement System, Retirement Benefits and Options (web page, read October 8, 2026): https://middlesexretirement.org/benefits-options/
- Middlesex County Retirement System, Leaving Job Before Retirement (web page, read October 8, 2026): https://middlesexretirement.org/leaving-job-before-retirement/
- Middlesex County Retirement System, Survivor Benefits (web page, read October 8, 2026): https://middlesexretirement.org/survivor-benefits/
- Public Employee Retirement Administration Commission (PERAC), Massachusetts Public Employee Retirement Guide POST 4/2/2012, as published on the Middlesex County Retirement System website: https://middlesexretirement.org/wp-content/uploads/2026/02/PERAC-Retirement-Guide-POST-Apr-2-2012.pdf
- Middlesex County Retirement System, Application for Withdrawal of Accumulated Total Deductions (Refund Form), PERAC form last revised June 2025: https://middlesexretirement.org/wp-content/uploads/2026/06/Application-for-Refund-and-Tax-Notice-07112025.pdf
- Middlesex County Retirement System, Choice of Option at Retirement (PERAC form last revised February 2020): https://middlesexretirement.org/wp-content/uploads/2026/02/Retirement-Option-Selection-Form-05212020.pdf
- Middlesex County Retirement System, Death Before Retirement (web page, read October 8, 2026): https://middlesexretirement.org/death-before-retirement/
- Middlesex County Retirement System, Creditable Service (web page, read October 8, 2026): https://middlesexretirement.org/creditable-service/
- 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 8, 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.