Estate planning for unmarried couples

Here is the blunt legal reality: if you die without documents, your unmarried partner inherits nothing. Not the house you shared for fifteen years, not your retirement account, not the right to make your medical decisions, not even standing to plan your funeral. Intestacy law routes everything to blood relatives — parents, siblings, distant cousins — and treats the person you built a life with as a legal stranger. Married couples get a massive safety net by default. Unmarried couples have to build every strand of it by hand.

What marriage gives that you have to replicate

• Automatic inheritance rights under every state's intestacy law.
• The unlimited marital deduction — spouses inherit any amount free of estate tax; partners get no such break.
• Spousal rollover of retirement accounts into their own IRA; a partner is a non-spouse beneficiary stuck with the 10-year rule.
• Default priority to make medical decisions and access to hospital visitation.
• Social Security survivor benefits — no marriage, no benefit, no workaround.
• Tenancy by the entirety and other spousal property protections in many states.

The core document stack

1. A will (or revocable trust) naming your partner explicitly. Without it, your partner's claim to anything titled in your name alone is zero.
2. Beneficiary designations on every retirement account, life insurance policy, and POD/TOD account — these override the will and transfer fastest, which matters when a grieving partner also faces hostile relatives.
3. Healthcare proxy / medical power of attorney naming your partner, plus a HIPAA release so doctors can even talk to them.
4. Durable financial power of attorney so your partner can pay the mortgage from your account if you're incapacitated.
5. A disposition-of-remains designation (available in many states) so your partner — not your estranged parents — controls funeral decisions.

The house: the biggest and most fumbled asset

How the deed reads decides everything. Sole ownership by one partner means the other has no rights without a will — and even with one, they may face probate delays while relatives contest. Joint tenancy with right of survivorship passes the house automatically to the survivor, outside probate, regardless of what any will says. Tenancy in common means each partner's share goes to their own heirs — fine if you each want your half going to your own kids, catastrophic if you assumed the survivor keeps the home.

The tax problem money can partially solve

Because there's no marital deduction, everything you leave a partner counts against your estate tax exemption — irrelevant for most couples under the federal threshold, very relevant in states where the estate tax starts at $1–2 million, a bar a house plus retirement accounts can clear. Life insurance is the standard patch: it passes income-tax-free to the named beneficiary, provides fast liquidity if the estate gets contested, and (owned correctly) can sit outside the taxable estate. Also mind the gift tax: adding a partner to a deed or 'equalizing' accounts during life is a reportable gift above the annual exclusion — moves a lawyer should paper properly.

Beyond documents: the partnership agreement

A cohabitation agreement — the unmarried version of a prenup — spells out who owns what, how shared expenses and home equity are split, and what happens on a breakup or death. It's not romantic, but neither is litigating fifteen years of Venmo history. Couples who keep finances merged without any legal framework carry all the entanglement of marriage with none of its protections.

The gap, priced document by document

Read the right-hand column as a whole and the pattern is stark: the entire protective stack costs less than $3,000 at the attorney tier — often under $500 using careful online documents plus a deed change — while any single gap can cost a partner the home, the savings, or the right to sit at a hospital bedside. Couples who have been together for decades sometimes feel the paperwork is unromantic or unnecessary ('everyone knows we're together'). The law does not know. It reads forms, deeds, and statutes, and to every one of those instruments an undocumented partner of thirty years is a stranger with no standing.

The bottom line

The legal system defaults to protecting spouses and blood relatives — unmarried partners are invisible to it. Fix the deed, name each other on every beneficiary form, sign wills, healthcare proxies, and financial powers of attorney, and consider life insurance to patch the tax and liquidity gaps. It's a few weeks of unromantic paperwork that determines whether the person you love keeps the home you shared or gets a letter from someone else's lawyer.