Contribution Rates

Employees contribute a percentage of their regular compensation to the retirement system. A member’s contribution rate is set by statute and determined by his or her most recent membership date.*

 

Membership Date

Contribution Rate

Prior to January 1, 1975 5%
January 1, 1975 to December 31, 1978 7%
January 1, 1979 to December 31, 1983 7% plus an additional 2% of compensation in excess of $30,000
January 1, 1984 to June 30, 1996 8% plus an additional 2% of compensation in excess of $30,000
As of July 1, 1996 9% plus an additional 2% of compensation in excess of $30,000
As of April 2, 2012 9% plus an additional 2% of compensation in excess of $30,000. Members in Group 1 with 30 years of creditable service will have their contribution rate decreased to 6% plus an additional 2% of compensation in excess of $30,000

 

*NOTE: If a member receives a refund of retirement contributions from any Massachusetts contributory retirement system and later re-establishes membership with the Middlesex County Retirement System, his or her contribution rate will be at the new member rate, even if the member re-deposits the amount withdrawn.

Members’ contributions will be taken by their employer from their regular compensation on a weekly, biweekly, or monthly basis as determined by their pay period.