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Apply for a Domestic Partnership

City Clerk's Office

The Domestic Partnership Ordinance allows persons in committed relationships who meet the criteria established by the Ordinance as constituting domestic partnerships to register at the office of the City Clerk and obtain a certificate attesting to their status. The ordinance recognizes certain rights of access for domestic partners. This ordinance, in conformance with the Human Rights Ordinance, which bars discrimination on the basis of sexual orientation, marital status and family status, also equalizes the treatment of City employees. 

Note: This city ordinance does not affect state law in many important areas of property rights, custody and inheritance, if you have questions about these issues you should consult a lawyer.

How to Start

  1. You and your partner must come to the City Clerk’s Office in person to file a Domestic Partner Registration, which both partners must sign under the pains and penalties perjury. The Registration can be amended to add or delete dependents or change the household address.
  2. Pay the fee of $35
  3. The City Clerk will mail you a Certificate of Domestic Partnership and two wallet-sized cards indicating the existence of the partnership, the names of the domestic partners, and the names of the dependents of the domestic partnership, if any. 
City Clerk’s Office
Cambridge City Hall
795 Massachusetts Avenue, Room 103
Cambridge, MA 02139
Monday: 8:30am-8pm 
Tuesday-Thursday: 8:30am-5pm 
Friday: 8:30am-12pm 


Additional Information

  • To be domestic partners, you and your partner must reside together in a relationship of mutual support, caring and commitment, be 18 or over, and consider yourselves to be a family. 
    • "Reside together" means living together in a common household. A partner may be temporarily absent from the common household, so long as she or he has the intent to return. A partner may own or maintain an additional residence.
  • Neither of you can be married to anyone, and neither of you can have a different domestic partner. If either of you had a different domestic partner before, you have to wait six months and seven days after the old domestic partnership ended before you can set up a new one. You don't have to wait if your old partnership ended because your partner died. 
  • You cannot be related to your partner as a parent, stepparent, child, stepchild, sister or brother, aunt, uncle, niece, nephew, grandparent or grandchild, or any other relationship that would bar marriage.

Page was last modified on 12/8/2021 2:07 PM
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