Yes. Registered domestic partners in California need an estate plan. California domestic partners estate planning exists because state law gives you the right to inherit from each other, not the right to speak for each other while you are both alive.
Filing a Declaration of Domestic Partnership with the Secretary of State settles who inherits from you. Nothing else comes with that filing automatically. Documents, not another form, close the rest of the gap.
Does California Treat Registered Domestic Partners Like Spouses?
Yes. Under California’s domestic partner equality law (Family Code section 297.5), registered domestic partners have the same rights, protections, benefits, and responsibilities as spouses. A surviving partner is treated the same as a widow or widower.
That equal-treatment rule is a broad grant, not a fixed list of benefits. It reaches statutes, agency rules, court rules, and common law alike. California’s probate code definition of domestic partner (Probate Code section 37) uses that same meaning, so probate rights follow the filing.
In practice, a surviving partner in a registered California domestic partnership already owns half of the couple’s community property, meaning what the couple built together during the partnership. The other half generally passes to the surviving partner too when there is no will, the same intestate rule that applies to a surviving spouse.
Is an Employer Domestic Partnership the Same as a Registered One in California?
No. Only a Declaration of Domestic Partnership filed with the California Secretary of State creates the partnership that carries inheritance rights. Partners enrolled solely in an employer’s or a city’s domestic partner program have no automatic claim to each other’s estates.
Under California’s domestic partnership filing requirements (Family Code section 297), the partnership starts when both people file that form and meet four tests at the same time:
- No other marriage or partnership: Neither person is married or registered with someone else.
- Not close blood relatives: The bar tracks the rule that would stop the two from marrying in California.
- Both at least 18: The statute allows one narrow exception.
- Both able to agree: Each person can consent to the partnership.
That same probate code definition ties who inherits to that same filing, and a domestic partnership offered only through an employer’s health plan is a benefits plan, not a state filing.
When no registered partner survives, California’s order of intestate succession (Probate Code section 6402) sends the estate down a fixed line: children and their children first, then parents, then siblings and their children. A partner who never filed is nowhere on that line. You can review how probate works when there is no will in California for the fuller picture. Only the filing itself makes you a domestic partner California law recognizes at death.
What Do Inheritance Rights Alone Not Cover?
Inheritance rights decide who receives your property after you die and nothing more. They do not name anyone to make your medical decisions or manage your money. That gap opens the moment either partner becomes unable to act, not at death.
Two documents close it. For medical decisions, under California’s health care power of attorney rules (Probate Code section 4671), an adult who can still make decisions may sign one naming an agent to act on their behalf, with the same document able to carry written care instructions. For money and property, under California’s durable power of attorney requirement (Probate Code section 4124), a power of attorney is durable, meaning it still works once the person who signed it can no longer act, only if it says so in writing.
Without those two documents, no one holds that authority automatically. The fallback is a court process, not a paper your partner can hand to a hospital or a bank. Both documents come from an estate planning attorney who assists clients with preparing advance health care directives.
Inheritance rights fall short again after death if your partner never signed a will. Only a surviving spouse can roll over a deceased partner’s retirement account into their own name under federal tax law, an option covered in more detail in what happens to a retirement account when you die in California, and California’s order of intestate succession, covered above, does not give an unmarried partner automatic priority to serve as executor either.
What Happens to Your Will If the Partnership Ends?
Ending a California domestic partnership cancels what your will left to your former partner, unless the will says otherwise in plain words. Under California’s revocation-on-termination rule (Probate Code section 6122.1), that rule reaches property left to the former partner and any power of appointment, meaning the right to name who gets certain property.
The same rule also removes that partner as executor, trustee, conservator, or guardian. Property that can no longer pass to the former partner passes as though that partner had died first.
Two limits matter. The rule covers only wills signed on or after January 1, 2002. And the gifts come back only if the same two people register with each other again.
Because a partnership that ends rewrites a will by operation of law, couples should revisit a California estate plan built around wills and trusts after a change in the relationship.
Do Domestic Partners Get the Same Federal Estate Tax Treatment as Spouses?
No. Federal tax law does not treat registered domestic partners as spouses.
A married person can leave an entire estate to a surviving spouse with no federal estate tax. That break is called the unlimited marital deduction, and it does not reach a surviving domestic partner.
The federal rule is explicit. Under the federal tax definition of spouse, husband, and wife (26 C.F.R. section 301.7701-18), those terms leave out anyone who entered a registered domestic partnership, no matter where the couple lives. The marital deduction statute (26 U.S.C. section 2056) lets an estate deduct property that passes to a surviving spouse. That is the door the federal rule closes to a surviving partner.
The domestic partnership vs. marriage California question looks settled at the state level and stays open at the federal one. That difference is worth a conversation with an attorney, especially for a higher-value estate.
Talk to Frisella Neilson, APC About California Domestic Partners Estate Planning
Wanting to protect each other without the same automatic legal footing as married couples is a real concern, not just paperwork. An estate planning attorney can turn California’s default rules into a plan that actually matches what you and your partner want. The paperwork you already have is the place to start. Look for a filed Declaration of Domestic Partnership, and for written authority over health care and money.
Lisa J. Frisella, founding attorney at Frisella Neilson, APC, focuses her San Diego practice on estate planning, wills, and trusts, and can walk through what California domestic partners estate planning should look like for your household. Call us at (619) 260-3500 or contact us to get started.
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