Contribution Rates
Employees contribute a percentage of their regular compensation to the Middlesex County Retirement System.
A member’s contribution rate is set by state law and depends on their most recent membership date.*
Find Contribution Rates by Membership Date
| Membership Date | Contribution Rate |
|---|---|
| Jan 1, 1975 – Dec 31, 1978 | 7% |
| Jan 1, 1979 – Dec 31, 1983 | 7% + an additional 2% of compensation in excess of $30,000. |
| Jan 1, 1984 – Dec 31, 1996 | 8% + an additional 2% of compensation in excess of $30,000. |
| On or after Jan 1, 1996 | 9% + an additional 2% of compensation in excess of $30,000. |
| On or after Apr 2, 2012 | 9% + an additional 2% of compensation in excess of $30,000. Group 1 members will have their contribution rate decreased to 6%, plus an additional 2% in excess of $30,000 once they accrue 30 years of creditable service. |
*If a member previously received a refund of retirement contributions from any Massachusetts contributory retirement system and later re-establishes membership, the contribution rate will be based on their new membership date, even if the member re-deposits withdrawn funds.
How Contributions Are Collected
Contributions are automatically deducted from your paycheck by your employer. The deduction schedule (weekly, biweekly, or monthly) is determined by your employer’s pay period.
HAVE QUESTIONS?
Find answers to common questions about eligibility, contributions, and retirement benefits.