Is Common Law Marriage Recognized in Maine?

Common law marriage in Maine is not recognized, no matter how many years a couple has lived together or how openly they present themselves as spouses. Maine law treats unmarried partners as “unrelated individuals,” which affects inheritance, property, taxes, healthcare decisions, and more.¹ To gain the legal protections that come automatically with marriage, unmarried couples in Maine have to build them deliberately through other documents.

How Maine Creates a Legal Marriage

Maine requires three steps. At least one partner files a notice of intentions with the municipal clerk where they live or with the State Registrar of Vital Statistics.² The clerk then issues a marriage license, which expires if not used within 90 days.³ The marriage must then be solemnized by an authorized person, which in Maine includes judges, lawyers admitted to the Maine Bar, ordained ministers, and certain other clergy or licensed officiants.⁴

Miss any of those steps and there is no marriage under Maine law. Cohabitation, shared bank accounts, shared children, joint tax filings in prior years, or introducing each other as spouses does not close the gap.

What If You Formed a Common Law Marriage in Another State

A handful of states still permit couples to establish common law marriages, including Colorado, Iowa, Kansas, Montana, South Carolina, Texas, and Utah, along with Rhode Island and Oklahoma through case law.⁵ The general rule across the country is that a marriage valid where it was created is recognized in other states. Maine’s statutes do not explicitly address the question, and the legislature’s broad statement that Maine “does not recognize common law marriage” leaves the answer unsettled.

If you established a common law marriage in another state and later moved to Maine, talk to a family law attorney before assuming your marriage will or won’t be honored here. The outcome affects everything from joint tax filing to inheritance rights.

Maine’s Domestic Partnership Registry

Maine offers a domestic partnership registry under Title 22, Section 2710. Two unmarried adults who have lived together in the state for at least 12 months can register as domestic partners if neither is married or in another domestic partnership.⁶ The statute defines domestic partners as “2 unmarried adults who are domiciled together under long-term arrangements that evidence a commitment to remain responsible indefinitely for each other’s welfare.”

Registration is not a substitute for marriage, and the form itself warns that “registration is not a substitute for a will, a deed or a partnership agreement” and that any rights it confers “may be completely superseded by a will, a deed or other instruments.”⁶ The main practical value is a formal record of the relationship that can matter for employer benefits or other administrative purposes.

What Unmarried Partners Lose in Maine

Inheritance

Maine’s intestacy law gives a surviving spouse a significant share of an estate when someone dies without a will. If there are no surviving children or parents, the spouse inherits everything, and when children or parents survive, the spouse still receives at least the first $100,000 plus a share of the remainder.⁷ An unmarried partner, no matter how long the relationship lasted, receives nothing under these rules. Without a will, your partner’s assets pass to their blood relatives.

Splitting Property If You Break Up

Married couples divorcing have a statutory framework for dividing assets. Unmarried couples don’t. If both names are on a deed and you can’t agree what to do with the property, one option is a partition action under Title 14, Chapter 719, which asks a court to divide or order the sale of jointly held property.⁸ Partition doesn’t help if only one partner holds title, even when both contributed money. In that situation, the contributing partner may have to pursue an unjust enrichment or constructive trust claim, which is harder to prove.

Taxes

The IRS looks at whether you are legally married on the last day of the tax year to set your filing status. Because Maine doesn’t create common law marriages, a cohabiting couple in Maine files federal returns as single or, if they have a qualifying dependent, as head of household.⁹ Joint filing is unavailable. Gift tax rules also treat unmarried partners differently: spouses can transfer unlimited amounts to each other under the marital deduction,¹⁰ while unmarried partners face annual gift-tax reporting once transfers cross the yearly threshold, which can matter when one partner covers a disproportionate share of shared expenses or property.

Medical Decisions

Marriage automatically grants spouses decision-making authority in medical emergencies. Without marriage, your partner has no legal right to make healthcare choices for you if you become incapacitated. Maine law lets you name anyone as your healthcare agent through an advance directive under Title 18-C, Section 5-805, and that person doesn’t have to be a spouse or relative.¹¹ Without a signed directive, hospitals turn to legal next of kin, and an unmarried partner is not on that list.

Social Security and Employer Benefits

Spousal Social Security benefits generally require a legal marriage of at least one year.¹² Divorced-spouse benefits require ten years of marriage.¹³ Cohabitation, however long, doesn’t substitute. Employer health plans, pension survivor benefits, and COBRA continuation coverage usually follow the same rule, though some employers extend coverage to registered domestic partners.

Parentage

Married parents are both presumed legal parents of a child born during the marriage. Unmarried parents have to establish that legal relationship. Maine allows unmarried parents to sign a voluntary acknowledgment of parentage under Title 19-A, Section 1861, often available at the hospital at birth.¹⁴ Without that, a person who lives with a child from birth and openly holds the child out as their own for at least two years is presumed to be a parent, though the presumption can be challenged and sometimes needs a court order to resolve.¹⁵ Once parentage is established, Maine treats parental rights and responsibilities the same regardless of whether the parents ever married.¹⁶

How to Protect Yourself Without Marriage

Since Maine won’t create a common law marriage, protection comes from documents you sign yourself. The tools that matter most:

A cohabitation agreement is a written contract setting out how you’ll handle property, finances, and support if the relationship ends. Maine courts can enforce these contracts, so it pays to put the terms in writing while the relationship is stable.
A will or trust is the only way to make sure your partner inherits from you. Without one, Maine’s intestacy laws send your assets to blood relatives and leave your partner with nothing. A trust also allows you to avoid probate.⁷
An advance healthcare directive names your partner as the person authorized to make medical decisions if you can’t. Maine’s statutory form lets you appoint any competent adult.¹¹
A durable power of attorney gives your partner authority over financial matters if you become incapacitated. Without one, your partner has no standing to manage your accounts, pay your bills, or handle your property.
Beneficiary designations on retirement accounts, life insurance, and payable-on-death bank accounts pass directly to the named person regardless of your will or intestacy rules. Adding your partner is one of the simplest and most effective protections available.

These documents don’t replicate every benefit of marriage. They won’t produce Social Security spousal benefits or open joint tax filing. What they do is close the gaps that hurt most when something goes wrong: a partner shut out of medical decisions, an inheritance lost to intestacy, a shared home one partner can’t keep. If marriage isn’t part of the plan, those documents should be.

1
Maine State Legislature. Marriage
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Maine State Legislature. Maine Code Title 19-A 651 – Recording of Intentions
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Maine State Legislature. Maine Code Title 19-A 652 – Issuance of Marriage License
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Maine State Legislature. Maine Code Title 19-A 655 – Authorization and Penalties
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National Conference of State Legislatures. Common Law Marriage by State
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Maine Legislature. Maine Code Title 22 2710 – Domestic Partner Registry
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Justia Law. Maine Code 18-C 2-102 – Share of Spouse
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Maine Legislature. Maine Code Title 14 Chapter 719 – Partition of Real Estate
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Internal Revenue Service. Filing Status
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Office of the Law Revision Counsel. 26 USC 2523 – Gift to Spouse
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Maine State Legislature. Maine Code Title 18-C 5-805 – Optional Form
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Social Security Administration. What Are the Marriage Requirements to Receive Social Security Spouse’s Benefits?
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Social Security Administration. Who Can Get Family Benefits
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Maine State Legislature. Maine Code Title 19-A 1861 – Acknowledgment of Parentage
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Maine State Legislature. Maine Code Title 19-A 1881 – Presumption of Parentage
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Maine State Legislature. Maine Code Title 19-A 1653 – Parental Rights and Responsibilities