New Jersey does not recognize common law marriage. The state abolished it for any union formed on or after December 1, 1939, and no stretch of living together, sharing finances, or introducing each other as spouses will create one today.1Justia Law. New Jersey Code 37:1-10 – Common Law and Other Marriages Without License; Validity If you never obtained a license and had a ceremony performed by an authorized officiant, New Jersey treats you as legally single, with all the consequences that follow for inheritance, medical decisions, property, and benefits.
That rule has one real exception, and the state does offer tools to replace the protections marriage would otherwise supply. But none of them turn on automatically. You have to put them in place.
The One Exception: Common Law Marriages Formed in Another State
If you validly formed a common law marriage in a state that still allows them, New Jersey will generally recognize it under the Full Faith and Credit Clause when you move here. The key word is validly. The marriage has to have actually met the originating state’s requirements, which usually include mutual agreement to be married, cohabitation, and holding yourselves out publicly as spouses. Simply living together in another state for a while is not enough.
A handful of states still permit new common law marriages, among them Colorado, Iowa, Kansas, Montana, Texas, and Utah.2National Conference of State Legislatures. Common Law Marriage by State If a dispute arises here, you carry the burden of proving the marriage existed under that state’s standards. Joint tax returns filed as married, shared accounts, property titled in both names, and signed statements from people who knew you as spouses are the kinds of evidence that typically matter. The Social Security Administration uses a similar approach for benefit claims, relying on signed statements from the couple and from blood relatives of the deceased partner.3Social Security Administration. Evidence of Common-Law Marriage
Where the common law marriage is valid under some state’s law, federal agencies treat it the same as a ceremonial marriage. The IRS has confirmed that couples in a valid common law marriage may file jointly even after moving to a state that does not recognize such marriages.4Internal Revenue Service. Revenue Ruling 2013-17 Gather and keep documentary proof before any dispute surfaces, because reconstructing it later during a divorce, probate, or benefits fight is much harder.
What You Actually Lose by Being Unmarried in New Jersey
The gap between married and unmarried in New Jersey is wider than most people assume, and it shows up in the moments that matter most.
Inheritance
If your partner dies without a will, New Jersey’s intestate succession statute controls. It distributes assets to a surviving spouse, civil union partner, or registered domestic partner first, then to descendants and parents.5Justia Law. New Jersey Code 3B:5-3 – Intestate Share of Surviving Spouse An unmarried partner who is not registered as a domestic partner inherits nothing. Twenty years together, children in common, a house you shared — none of that changes the result if the house is titled solely in your partner’s name and there is no will.
Medical Decisions
Without a healthcare power of attorney, hospitals and doctors may refuse to let your partner make decisions for you, or even share information about your condition. If you become incapacitated with no advance directive, a court may appoint a guardian, and that guardian will typically be a blood relative rather than the person you actually live with.
Property Division If You Split Up
Married couples who divorce go through equitable distribution. Unmarried couples get none of that. Each partner keeps whatever is titled in their name. Years of paying down your partner’s mortgage, funding home improvements, or supporting the household while they built a career create no legal claim to their property unless you have a written agreement that says they do.
Cohabitation Agreements
A cohabitation agreement is a written contract between unmarried partners covering who owns what, who pays for what, and what happens if the relationship ends. It is the unmarried equivalent of a prenuptial agreement, and it is the single most effective tool for closing the gap New Jersey law leaves open.
A workable agreement usually addresses shared expenses, how property acquired during the relationship will be divided, what happens to a jointly owned home, and any financial support obligations after a split. It can also address responsibilities toward children, though New Jersey courts always retain final authority over custody and child support regardless of what any private agreement says.
Courts enforce these agreements under ordinary contract principles. Both partners must sign voluntarily, the terms cannot violate public policy, and both should fully disclose their finances beforehand. Signs of pressure or hidden assets will sink an agreement in court. Each partner having independent counsel review the document before signing is the strongest protection against a later challenge.
How You Title Property Matters Too
For real estate, the form of ownership can matter as much as the agreement. Joint tenancy with right of survivorship means the surviving owner automatically takes the other’s share, bypassing probate. Tenancy in common means a deceased owner’s share passes under their will, or to their intestate heirs if there is no will. An unmarried partner holding property as tenants in common with no will naming them can lose that share to their partner’s family. Choosing the wrong form of ownership, or never thinking about it, is one of the most common and costly oversights unmarried couples make.
Palimony: The Written-Promise Rule
Palimony is financial support one unmarried partner seeks from the other after a long-term relationship ends. It is not alimony. It is contract-based, and in New Jersey the contract has to be in writing.
A 2010 amendment to the Statute of Frauds, N.J.S.A. 25:1-5(h), made any promise of support between unmarried partners unenforceable unless written and signed by the person making the promise.6Justia Case Law. Moynihan v. Lynch Before 2010, courts could sometimes enforce oral promises based on the surrounding evidence. That option is gone.
In 2022, the New Jersey Supreme Court in Moynihan v. Lynch struck down a related requirement that both parties receive independent legal advice before signing, but the writing requirement itself survived intact.6Justia Case Law. Moynihan v. Lynch A signed, written promise of support can be enforced. A purely verbal one cannot, no matter how much you relied on it.
To succeed on a palimony claim you need to show the written promise and show that you relied on it to your detriment. Leaving a career, relocating, or turning down opportunities on the strength of the promise can all strengthen the claim. The length of the relationship and the financial disparity between partners factor in, but the written document drives the outcome.
Domestic Partnerships (For Couples 62 and Older)
New Jersey’s Domestic Partnership Act took effect July 10, 2004. After the Civil Union Act in 2007 and nationwide marriage equality in 2015, the eligibility rules narrowed. Today both partners must be at least 62 years old to register a domestic partnership, whether the couple is same-sex or opposite-sex.7Department of Health. Domestic Partnership in New Jersey – FAQs If you are under 62, this option is not available, and marriage is the only path to the full set of state protections.
For eligible couples, registration requires sharing a common residence, being jointly responsible for each other’s welfare through joint finances or property, agreeing to cover each other’s basic living expenses, being unmarried and not in another domestic partnership, and not being closely related. The process involves a notarized Affidavit of Domestic Partnership filed in person with a local registrar of vital statistics; the filing fee is $28.8Department of Health. Domestic Partnerships – NJ.gov
Registered domestic partners gain healthcare decision-making authority, hospital visitation rights, and certain state tax benefits.9NJ Legislature. An Act Establishing the Rights and Responsibilities of Domestic Partners If one partner is a public employee, the other may qualify for state-administered health benefits. A surviving domestic partner also inherits under New Jersey’s intestate succession law in the same manner as a surviving spouse.5Justia Law. New Jersey Code 3B:5-3 – Intestate Share of Surviving Spouse Federal benefits — Social Security spousal coverage, immigration sponsorship, joint federal tax filing — are not available through domestic partnership.
The Documents Every Unmarried New Jersey Couple Should Have
Because New Jersey gives unmarried couples almost nothing automatically, a small set of documents does most of the work marriage would otherwise do. Skipping them is the most common mistake in this area of law, and the cost of putting them in place is a fraction of what a single probate fight or guardianship proceeding costs.
- A will or living trust, which is the only way to make sure your partner inherits anything at all.5Justia Law. New Jersey Code 3B:5-3 – Intestate Share of Surviving Spouse
- A healthcare power of attorney, so your partner can make medical decisions and receive information if you cannot.
- A durable financial power of attorney, so your partner can manage bills, accounts, and property if you become incapacitated, rather than a court-appointed relative doing it.
- Beneficiary designations on life insurance, retirement accounts, and payable-on-death bank accounts, which pass directly to the named person and bypass both probate and intestate rules.
- A cohabitation agreement covering property and finances during and after the relationship.
Put together, these cover the main failure points. Long-term cohabitation does not create any implied legal status in New Jersey. The protections exist, but you have to sign for them.