How do I establish paternity in Massachusetts?
Massachusetts paternity law is in M.G.L. Chapter 209C, recently overhauled by the Massachusetts Parentage Act (effective 2025).
1. Voluntary Acknowledgment of Parentage
Form R-298 is signed by both parents before a notary at the birthing hospital or later at any Registry of Vital Records and Statistics office. Under M.G.L. ch. 209C, § 11 a properly executed acknowledgment "shall have the same force and effect as a judgment of paternity." Either signatory may rescind within 60 days or before any administrative or judicial proceeding (whichever is earlier). After 60 days, challenges require fraud, duress, or material mistake of fact within 1 year of discovery.
2. Court-Ordered Paternity
A complaint to establish paternity under M.G.L. ch. 209C, § 5 may be filed by the mother, alleged father, child (through next friend), or the Department of Revenue Child Support Enforcement Division in the Probate and Family Court of the county where the child resides. Under § 17 and 42 U.S.C. § 666(a)(5)(B) the court orders genetic marker testing on motion; a 97% probability creates a rebuttable presumption of paternity (§ 17).
3. Presumption of Parentage
Under the updated M.G.L. ch. 209C, § 6 a person is presumed a parent if married to the gestational parent at birth, married within 300 days before birth, married after birth and acknowledged parentage, openly held the child out as their own for the first two years, or consented to assisted reproduction. The MPA replaces the older father-only language with gender-neutral parentage.
4. Effects of Establishing Parentage
Triggers child support under M.G.L. ch. 119A and the Massachusetts Child Support Guidelines, opens custody and visitation under M.G.L. ch. 209C, § 10, vests intestate inheritance under M.G.L. ch. 190B, § 2-103, and supports a birth-certificate amendment via the Registry of Vital Records (R-353).
5. Special Situations
Same-sex spouses are presumed parents under the MPA. De facto parents may petition under M.G.L. ch. 209C, § 14 (post-MPA). The MPA codifies surrogacy and assisted-reproduction parentage. Sperm and egg donors are not parents absent agreement.
This is legal information, not legal advice.
- De facto or holding-out parentage claim under the Massachusetts Parentage Act
- Surrogacy or assisted-reproduction parentage order under the MPA
- Voluntary acknowledgment challenge filed after the 60-day rescission window
- M.G.L. ch. 209C, § 5
- M.G.L. ch. 209C, § 6
- M.G.L. ch. 209C, § 11
- M.G.L. ch. 209C, § 14
- M.G.L. ch. 209C, § 17
- 42 U.S.C. § 666(a)(5)(B)
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.