Are you living with your partner in Manchester, Concord, or Nashua and wondering about your legal rights? Does New Hampshire have common law marriage? The answer is complicated.
New Hampshire partially recognizes it, but only after one partner dies. While you are both alive, you are not legally married under New Hampshire law, no matter how long you have lived together.
What Is Common Law Marriage?
Common law marriage is a union formed without a license or ceremony. A couple lives together, acknowledges each other as married, and presents that status publicly. Most states do not allow it. New Hampshire takes a unique position.
Is Common Law Marriage Recognized in New Hampshire?
New Hampshire does not recognize common law marriage for living couples. However, the state carved out a narrow exception under RSA 457:39. This statute allows a court to treat a relationship as a legal marriage after one partner dies, but only for inheritance and probate purposes.
No court will declare you legally married while you are both alive. You cannot file for divorce, claim alimony, or seek property division as a married couple under New Hampshire law.
The New Hampshire 3-Year Rule Under RSA 457:39
For the inheritance exception to apply, three conditions must all be met.
The couple must have cohabited continuously for at least three years. Even a one-month break in cohabitation, where one partner moves out, can invalidate the claim entirely.
The couple must have openly acknowledged each other as husband and wife. Privately considering yourselves married is not enough. Public declaration matters.
The community must have generally regarded the couple as married. Friends, neighbors, family, and colleagues must have recognized the relationship as a marriage.
If all three conditions are satisfied and one partner dies, the surviving partner can file in probate court to claim a spousal share of the deceased partner’s estate.
How to Prove Common Law Marriage in New Hampshire Probate
Proof in probate court requires solid documentation. Joint bank accounts, shared property titles, shared last names, insurance beneficiary designations, and witness testimony from community members all strengthen a claim. Courts look at the full picture of how the couple presented themselves to the world.
Out-of-State Common Law Marriages in New Hampshire
New Hampshire recognizes valid common law marriages formed in other states. Under the Full Faith and Credit Clause of the U.S. Constitution, if you established a legal common law marriage in Colorado, Texas, or another qualifying state before moving to New Hampshire, that marriage is fully valid here. You would need a formal divorce to end it.
Legal Protections for Unmarried Couples in New Hampshire
Since common law marriage offers no protection while both partners are alive, New Hampshire residents in long-term relationships should plan.
New Hampshire Cohabitation Agreement
A cohabitation agreement is a written contract that defines property rights, debt responsibilities, and financial arrangements during and after the relationship.
New Hampshire courts enforce properly drafted agreements. This is the strongest legal tool available to unmarried couples while both are living.
New Hampshire Estate Planning for Unmarried Couples
A will or trust allows you to name your partner as a beneficiary directly. This bypasses the need to prove common law marriage in probate court entirely.
A healthcare power of attorney and a durable power of attorney also grant your partner authority to make medical and financial decisions if you become incapacitated.
The Bottom Line for New Hampshire Residents
New Hampshire has common law marriage in a very limited form. It applies only in probate court after death. If you share a life, a home, or finances with a partner in New Hampshire, do not rely on RSA 457:39 to protect you.
Speak with a New Hampshire family law or estate planning attorney in Manchester, Concord, or Nashua today to secure your rights now.