California Estate Planning for Unmarried Couples: Protecting Your Partner's Rights

If you're not married and your partner dies without a will or trust in California, you inherit nothing. Not the house you share, not the bank accounts, not the car. Under California's intestate succession laws, everything passes to biological family — parents, siblings, nieces, nephews. Your partner's family could legally evict you from your own home.

This isn't a loophole or an edge case. It's the default rule, and it catches thousands of California couples every year.

What California Law Does (and Doesn't) Provide

Married spouses and registered domestic partners have automatic inheritance rights under Probate Code Section 6401 — they're entitled to the deceased's community property and a share of separate property even without a will.

Unmarried partners who are not registered domestic partners have none of these protections. California treats you as a legal stranger to your partner, regardless of how long you've lived together, shared finances, or built a life.

This means:

• No automatic right to inherit anything from your partner's estate
• No authority to make medical decisions if your partner is incapacitated
• No right to remain in a shared home owned in your partner's name alone
• No access to your partner's bank accounts or financial assets
• No standing to manage funeral arrangements without family agreement

The Essential Documents for Unmarried Couples

1. Wills or a Revocable Living Trust

At minimum, each partner needs a will that explicitly names the other as a beneficiary. A revocable living trust is better — it avoids probate, keeps the transfer private, and provides incapacity protection.

For shared real estate, a trust is strongly recommended. If one partner owns the home and dies without a trust, the surviving partner faces months of probate (or potential displacement by the deceased's family) before they can secure title.

2. Transfer on Death Deed

If a trust isn't feasible, a TOD deed names your partner as the beneficiary who automatically inherits the home at death. It must be recorded within 60 days of signing.

3. Durable Power of Attorney

Without a DPOA, your partner has no legal authority to manage your finances during incapacity. Banks will refuse their requests. Bills go unpaid. Property sits unmanaged. Only a court-appointed conservator — which takes months — can step in.

4. Advance Health Care Directive

This is arguably the most urgent document. Without an AHCD naming your partner as your healthcare agent, medical decisions default to your biological family — parents first, then siblings. In practice, this means your partner can be shut out of the hospital room while your estranged father makes treatment decisions.

Name your partner explicitly in the AHCD. Include specific language about visitation rights and information access.

5. Beneficiary Designations

Review every financial account, retirement account, and life insurance policy. Name your partner directly as the beneficiary. These designations override wills and trusts — they're the fastest way to ensure your partner receives financial assets without court involvement.

Property Title Matters

How you title shared real estate determines what happens at death:

Joint tenancy with right of survivorship: When one owner dies, the survivor automatically owns the entire property. Simple and effective, but only provides a 50% step-up in cost basis.

Tenants in common: Each partner owns their share separately. At death, their share goes to whoever they name in their will or trust — or to their biological family if they die without one. No automatic survivorship.

If you're buying a home together, take title as joint tenants with right of survivorship. If one partner already owns the home and wants the other to inherit, adding them as a joint tenant or executing a TOD deed are both options — but each has different implications for property taxes and the step-up in basis.

Registered Domestic Partnerships

California offers registered domestic partnership (through the Secretary of State) to both same-sex and opposite-sex couples. Registration provides inheritance rights equivalent to marriage under state law, including community property protections and intestate succession rights.

If you want legal protections without marriage, domestic partnership registration is a significant step. But it also means your assets become community property — which has implications for property division if the partnership dissolves.

Estate Planning for Retirees and After a Spouse's Death

Retirees — whether unmarried, newly widowed, or in a later-life relationship — face similar urgency. A surviving spouse who begins a new relationship without updating their estate plan may inadvertently leave the new partner with nothing, or may inadvertently cut their biological children out of the inheritance.

After a spouse's death in California, the surviving spouse should:

• Update or create a new will/trust reflecting current wishes
• Update all beneficiary designations on retirement accounts and insurance
• Review property titling — assets that were community property may now be the sole property of the surviving spouse
• Execute new powers of attorney and healthcare directives naming current agents

The worst time to discover gaps in your plan is during a crisis. The California Basic Estate Planning Kit walks unmarried couples through every document, titling decision, and beneficiary designation — plus the specific considerations for retirees updating their plan after a major life change.

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