Retirement Benefits and Options

The Massachusetts public retirement system provides several types of benefits to eligible members. Each monthly retirement allowance includes two parts:

  • Annuity: Based on the total contributions and interest in the annuity savings account at the time of retirement.
  • Pension: The difference between the calculated total retirement allowance and the annuity portion, unless otherwise required by law.

Your eligibility, benefit type, and calculation method depend on your membership date, group classification, and whether your retirement is regular or disability-related.

1. Superannuation Retirement (Regular Retirement)

A superannuation retirement allowance is calculated using:

  • Your age at retirement.
  • Years of creditable service.
  • Your highest average salary over a defined period.
  • Your membership date (before or after April 2, 2012).
  • Your group classification.

Looking for an estimate of your benefit percentage?

Superannuation Retirement (Membership Before April 2, 2012)

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Eligibility Requirements

Group(s) Creditable Service Requirement Retirement Age
1 At least 10 years 55
2 At least 10 years, plus must have been performing the duties of the Group 2 position prior to your termination or retirement. 55
4 None, but must have performed the duties of the Group 4 position prior to your termination or retirement. 55
1, 2, 4 20 or more years Any age

Calculation: Your retirement allowance is calculated using these factors:

  • Age at retirement
  • Years of creditable service
  • Your high 3-year salary average (regular compensation only)

Additional Veteran Benefit: Veterans receive $15 per year of creditable service, up to a maximum of $300.
Maximum Benefit: Your allowance cannot exceed 80% of the high, three-year salary average.

  • Group 1 reaches 80% at age 65 with 32 years of service.
  • Group 2 reaches 80% at age 60 with 32 years of service.
  • Group 4 reaches 80% at age 55 with 32 years of service..

How to Apply: Fill out and submit the Application for Superannuation Retirement

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Superannuation Retirement (Membership On or After April 2, 2012)

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Eligibility Requirements

Group(s) Creditable Service Requirement Retirement Age
1 At least 10 years 60
2 At least 10 years, plus 12 months in a Group 2 position immediately before retirement. 55
4 None, but must have performed Group 4 duties for at least 12 months before retirement. 55

Calculation: Your retirement allowance is calculated using these factors:

  • Age at retirement
  • Years of creditable service
  • Your high 5-year salary average (regular compensation only)

Additional Veteran Benefit: Veterans receive $15 per year of creditable service, up to a maximum of $300.
Maximum Benefit: Your allowance cannot exceed 80% of the high 5-year salary average.

  • Group 1 reaches 80% at age 67 with 32 years of service.
  • Group 2 reaches 80% at age 62 with 32 years of service.
  • Group 4 reaches 80% at age 57 with 32 years of service..

How to Apply: Fill out and submit the Application for Superannuation Retirement

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2. Ordinary Disability Retirement

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Ordinary disability benefits are available to members who are permanently incapacitated due to a non-work-related illness or injury.

Eligibility Requirements:
  • At least 10 years of creditable service.
  • Permanent incapacity preventing performance of essential job duties.
  • Disability not caused by job-related factors.
Calculation For Non-Veterans
Membership Before April 2, 2012

The benefit is calculated using the member’s:

  • Age
  • Creditable service
  • High, three-year average salary

If you are under age 55, your benefit is calculated as if you were 55. If you are 55 or older, it is calculated using the amount of service actually accrued.

Membership On or After April 2, 2012

The benefit is calculated using the member’s:

  • Age
  • Creditable service
  • High, five-year average salary

If the member is under age 55, the age factor is increased (to age 55) for a higher benefit.

Calculation For Veterans

Veterans will receive an allowance of:

  • A pension equal to 50% of the average annual rate of regular compensation received during the last 12 months of employment, plus
  • An annuity.

If a veteran’s superannuation allowance is greater than the ordinary disability retirement allowance, they will receive the greater benefit. Contact the office for more info.

3. Accidental Disability Retirement

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Accidental disability benefits are available to members who are permanently incapacitated as a direct result of an injury sustained or hazard undergone while in the performance of duties.

Eligibility Requirements:

  • Total and permanent incapacity.
  • Direct connection between the incapacitating condition and performance of duties.
  • The accident or exposure occurred no more than two years* prior to filing an application.

*Please note: The two-year filing requirement does not apply if notice of the injury was filed with both the employer and the retirement system within 90 days of the accident or exposure, as required for record-keeping and benefit eligibility.

Calculation: The accidental disability allowance includes:

A pension equal to 72% of:

  • Your member’s annual rate of regular compensation on the date of injury, or
  • The average annual rate of regular compensation earned in the 12 months prior to retirement, whichever is greater.

Benefit Cap: The total allowance (pension + annuity) cannot exceed 75% of annual rate of regular compensation.

Presumptions (Public Safety): Certain conditions — such as heart disease, lung disease, and certain cancers — are presumed job-related for eligible public safety personnel. Contact the office for more information.

4. Involuntary Retirement

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A department head may file an application to retire a member for superannuation or disability.

  • All standard age and service requirements still apply.
  • Under certain circumstances, members may request a hearing before the retirement board within 15 days of receiving the involuntary application.

If you receive an involuntary application for retirement from your department head, contact the Middlesex County Retirement System office for guidance.

Retirement Payment Options

You may select one of three benefit options when retiring. These options determine what happens to the allowance after your death.

Option A

  • Provides the highest monthly allowance.
  • No survivor benefit.

Option B

  • Monthly allowance is approximately 1-5% less than Option A.
  • Upon death, any remaining balance in your annuity savings account is paid in a one-time lump sum to your beneficiaries in the proportions you designate.
  • No ongoing monthly survivor benefit.

Option C

  • Monthly allowance is 7% to 15% less than Option A.
  • One eligible beneficiary receives ⅔ of your allowance for life.
  • Eligible beneficiaries: spouse, former spouse (unmarried), parent, child, or sibling.
  • Only one beneficiary may be named.

Please note: Option C “pops-up” to the full Option A allowance if your beneficiary predeceases you.

Have Questions?

Find answers to common questions about eligibility, contributions, and retirement benefits.