What the Law Says About Unmarried Partners

Under intestate succession laws in every U.S. state, an unmarried partner is a legal stranger. If you die without a will or trust, your assets pass to your legal next of kin — your blood relatives and legal spouse. Your partner inherits nothing, no matter how long you've been together or how intertwined your lives are.

Without proper documents, here is what an unmarried partner faces:

The Documents Every Unmarried Couple Needs

Because the law provides no automatic protections, every protection for an unmarried partner must be created deliberately through legal documents:

• Revocable Living Trust — transfers assets directly to your partner at death without probate. No court, no family interference, no delay. This is the most powerful tool for protecting an unmarried partner's inheritance.
• Last Will and Testament — states your wishes explicitly and names your partner as a beneficiary. Even with a trust, a pour-over will reinforces your intent and catches any assets outside the trust.
• Durable Power of Attorney — gives your partner legal authority to manage your finances if you're incapacitated. Without this, they have no access to your accounts even in an emergency.
• Healthcare Directive — names your partner as your healthcare agent, giving them legal authority to make medical decisions and communicate with your doctors on your behalf.
• Living Will — documents your end-of-life preferences so your partner has clear direction and legal backing when advocating for your care.
• Beneficiary Designations — name your partner directly on life insurance policies, retirement accounts, and annuities. These assets pass by designation — not through your trust or will.

Property Ownership Considerations

How you hold title to shared property matters enormously for unmarried couples:

• Tenants in Common — each partner owns a defined share (e.g., 50/50). At death, each share passes through that person's estate — to whoever is named in their trust or will. If no plan exists, that share goes to legal heirs, not the surviving partner.
• Joint Tenants with Right of Survivorship — at the first partner's death, their share automatically passes to the surviving partner outside probate. Simple, but creates gift tax considerations and loss of step-up in basis advantages.
• Title in one partner's name only — the named owner has full control. At death, the property passes entirely through their estate. The non-titled partner has no automatic rights.

For most unmarried couples, holding shared property as joint tenants with right of survivorship — combined with a funded revocable living trust — provides the cleanest protection.

What About Long-Term Partners Who "Never Got Around to It"

This is one of the most heartbreaking scenarios in estate planning. Couples who've been together for decades — sharing a home, finances, a life — who simply never formalized their protections.

The result when one partner dies without a plan:

• The surviving partner may lose the home they shared for years
• Assets built together may pass entirely to estranged relatives
• The surviving partner may be excluded from funeral decisions
• Years of financial interdependence unravel overnight — legally — because no document existed

The law has no mechanism for honoring commitment that isn't documented. Years together create emotional reality. Documents create legal reality. Only one of those two things matters in court.

Common Mistakes

• Assuming cohabitation creates legal rights. Living together — even for decades — creates no automatic legal protections in most states. Documentation is the only protection.
• Relying only on a will. A will still goes through probate — a public, potentially contested process. Family members can challenge a will leaving everything to an unmarried partner. A trust is far more difficult to contest and bypasses probate entirely.
• Not naming your partner on retirement accounts. Retirement accounts pass by beneficiary designation — not through your trust or will. If your partner isn't named, they don't receive it.
• Forgetting HIPAA authorization. Even with a healthcare directive, some hospitals require a separate HIPAA release to share medical information with someone who isn't a legal next of kin. Include this in your plan.
• Not planning for the relationship ending. Unlike divorce — which triggers automatic legal changes — a breakup with an unmarried partner does not. If the relationship ends, update every document and designation immediately.

Real-Life Example