Estate Planning for Unmarried Couples

The Law Sees You as Strangers

You share a mortgage, split groceries, raise a dog together. But if one of you dies without an estate plan, the law treats your surviving partner as a stranger with no more claim to your shared life than a random person on the street.

Intestacy statutes — the default rules that kick in when someone dies without a will — route everything to blood relatives. Parents, siblings, distant cousins all rank ahead of the person who slept next to the deceased for twenty years. This isn't a theoretical risk. Surviving unmarried partners have been evicted from their own homes within days of a death because the deed was in their partner's name alone and the estate's administrator needed to liquidate it for the legal heirs.

Married couples get automatic protections: the unlimited marital deduction, spousal Social Security benefits, default inheritance rights. Unmarried couples generally get none of that under default rules unless they build protections or qualify under another legal framework.

The Five Documents Every Unmarried Couple Needs

1. A Will

A will names your partner as a beneficiary and directs specific assets to them. Without one, intestacy laws control everything. The will should also name an executor — ideally your partner — to manage the estate and prevent hostile relatives from taking over.

2. A Revocable Living Trust

A trust lets assets pass to your partner without going through probate, which is especially useful when biological relatives might contest a will. Assets properly titled in the trust can pass under the trust's terms outside probate, reducing the risk of delays or frozen access.

3. A Durable Power of Attorney

This authorizes your partner to handle financial decisions if you're incapacitated. It's critical for unmarried couples because hospitals and banks default to blood relatives. One important caveat: a power of attorney terminates the instant its principal dies. It only covers incapacity, not death.

4. A Healthcare Proxy (Advance Directive)

This document gives your partner authority over medical decisions if you can't speak for yourself. Without it, hospitals will turn to your legal next of kin — your parents or siblings — and your partner may not even get past the waiting room.

5. A Beneficiary Designation Review

Life insurance, retirement accounts, and payable-on-death bank accounts all pass by beneficiary designation, bypassing both wills and intestacy. Naming your partner as beneficiary on every account is the single fastest protection you can put in place today.

Property Title Structures That Protect Your Partner

How you title your home matters more than anything in your will. Two co-owners can hold property as joint tenants with right of survivorship (JTWROS), which means the surviving owner automatically inherits the deceased's share outside of probate. Alternatively, tenancy in common passes the deceased's share through their estate — potentially to blood relatives who could force a sale of the home your partner still lives in.

If the property is in only one partner's name, the other partner has zero legal claim under intestacy. Transferring to JTWROS or placing the home in a trust are the two primary defenses against post-death eviction.

In the US, unmarried couples also miss out on the spousal property tax exemption. In states like California, co-owners must file an Affidavit of Cotenant Residency to avoid reassessment after a death — a step many couples don't know exists until it's too late.

Tax Gaps Unmarried Couples Face

Married spouses transfer unlimited assets to each other free of federal gift and estate taxes. Unmarried partners are subject to the standard gift tax exclusion ($18,000 per year as of 2024) and the lifetime estate tax exemption. Large transfers — like a house — can create a tax event that forces the surviving partner to sell the very asset they inherited.

Unmarried couples also can't file joint tax returns, which eliminates several deductions and credits available to married filers.

What Happens If You Do Nothing

If your partner dies tomorrow with no will, no trust, and no beneficiary designations, here's the likely sequence: their bank accounts freeze. Their parents or siblings become the legal heirs. The estate administrator — appointed by the court, not by you — has a legal obligation to collect every asset, including the home you share. You have no standing to object.

That's not a worst-case hypothetical. It's the default.

Start With One Step Today

The simplest move is the beneficiary review. Pull up every bank account, retirement account, and life insurance policy you both hold. Confirm your partner is listed as the primary beneficiary on each one. That single action takes less than an hour and protects against the most common post-death financial crisis unmarried couples face.

For a complete framework covering housing protection, financial account strategies, boundary scripts for hostile relatives, and a timeline of what to do in the first 48 hours after a partner's death, the When Your Partner Dies (Unmarried) toolkit walks through every step.