Estate planning for unmarried couples in California looks different than it does for married couples, because California law provides almost no automatic legal protections for unmarried partners. Without the right legal documents, a surviving partner can be shut out of medical decisions, financial decisions, and even a share of the home you built together. Ellingson Law, APC helps unmarried partners throughout Chico and Butte County put those protections in place.
Why estate planning is urgent for unmarried couples in California
Estate planning for unmarried couples starts with understanding what California law does not provide automatically. Unlike married couples, unmarried partners have no default legal relationship under California law. Without a will, a trust, or the right legal documents, your partner may have no say in your care and no claim to your estate assets.
What the law says if you die without a will in California
California’s intestate succession laws only distribute assets to legal relatives, such as a spouse, children, or parents. An unmarried partner is not recognized as a legal heir. Without a will, a trust, or explicit beneficiary designations on your accounts, a surviving partner typically receives nothing under state law.
Why long-term relationships offer no automatic legal protection
Marriage creates automatic rights under California law, including community property for a surviving spouse and a presumption of decision-making authority. Long-term unmarried couples receive none of this. A partner of twenty years has no more legal standing in your estate than a stranger unless you create legal documents that say otherwise.
Documents every unmarried couple needs
A handful of core documents can replace many of the protections marriage provides automatically. Each legal document serves a distinct purpose, and unmarried partners typically need all of them.
Last will and testament
A will directs where your estate assets go after death and can name your partner as a beneficiary, something intestate succession will not do. Without a will, your partner has no legal claim to your property, regardless of how long you lived together.
Revocable living trust
A revocable living trust lets you transfer property to your partner outside of probate, which matters because a partner has no automatic right to your estate the way a spouse would. It also keeps your relationship private, since probate records are public.
Durable financial power of attorney
A durable power of attorney lets you name your partner to make financial decisions on your behalf if you become incapacitated. Without one, a court-appointed conservator, not your partner, would manage your finances.

Advance healthcare directive
An advance healthcare directive lets you name your partner to make medical decisions if you cannot make them yourself. Without it, hospitals typically turn to legal next of kin, leaving your partner with no authority over your care. This same document is also where California law addresses who controls burial, cremation, and funeral arrangements after death, since that authority defaults to legal next of kin as well unless you name your partner directly.
HIPAA authorization
A HIPAA authorization allows health care providers to share your medical information with your partner. Without it, providers may withhold your condition and treatment details from anyone not named on the release, including immediate family, so your partner has no special standing to receive that information during an emergency unless you authorize it directly.
Protecting shared property and assets
How you title shared property determines what happens to it if one partner dies. Unmarried couple rights in California depend heavily on titling and documentation, not on the length of the relationship.
Joint tenancy with right of survivorship
Joint tenancy automatically transfers a deceased partner’s share to the surviving partner, bypassing probate entirely. This works well for a home you intend to leave to each other, but it overrides anything your will or trust says about that asset.
Tenants in common: what it means for your estate
Tenants in common each own a defined share of a property, and that share passes according to your will or trust rather than automatically to your partner, useful when you want your share to go to children instead.
How to title real estate as an unmarried couple in California
Real estate held by unmarried partners should specify the ownership structure clearly on the deed, either joint tenancy or tenants in common. Reviewing this alongside your broader estate plan prevents the deed from working against your will or trust.
Beneficiary designations on retirement accounts and life insurance
Retirement accounts and life insurance policies pass according to their beneficiary designations, regardless of what your will says. Unmarried partners should name each other directly on these accounts, and many couples also purchase life insurance to replace a lost income stream.
California domestic partnership: a middle option worth considering
California allows unmarried partners to register as domestic partners, providing many of the same legal protections as marriage under California law, though not all of them.
What rights a registered domestic partnership provides
Registered domestic partners in California receive community property rights, hospital visitation rights, and the ability to make medical decisions for each other, largely mirroring what legally married couples receive under state law. Partners must meet specific requirements and file with the Secretary of State to register.
How domestic partnership differs from marriage under California law
While California treats registered domestic partners similarly to married couples for state law purposes, federal law does not. Domestic partners do not receive federal tax benefits or Social Security survivor benefits, so estate planning documents remain essential even after registering.
Does California recognize common law marriage?
No. California does not recognize common law marriage, regardless of how long a couple has lived together or presented themselves as married. A common law marriage validly created in another state that recognizes it may be honored in California, but simply cohabitating in California, even for decades, creates no legal marital status.

Estate planning for unmarried couples with children
Planning for unmarried couples with children requires additional steps, particularly around guardianship and making sure every family member is protected.
Naming a guardian for minor children
If you have minor children and something happens to you, a court decides who raises them unless you have named a guardian in your will. This matters especially for unmarried couples, since a surviving partner who is not a legal parent may have no automatic right to keep raising the children.
Children from previous relationships: protecting all family members
When one or both partners have children from a previous relationship, an estate plan needs to address how assets are divided between a surviving partner and those children. Without clear instructions, a partner with no legal claim to your estate could end up with everything, or nothing.
Blended family considerations
Unmarried blended families face many of the same dynamics as married blended families, balancing a partner’s needs against children’s inheritance, but without any of the automatic protections marriage provides. A trust can specify exactly how much each person receives and when, much like the planning many couples use to protect assets from divorce if they marry later.
What is a cohabitation agreement and do you need one?
A cohabitation agreement is a private contract between partners that addresses financial matters during the relationship, separate from what happens after death.
What a cohabitation agreement covers
A cohabitation agreement can address how you divide expenses, how jointly acquired property is handled if you separate, and what happens to shared debts, similar to a prenuptial agreement for couples who never plan to marry.
How it works alongside an estate plan
A cohabitation agreement addresses your relationship while both partners are alive, while a will, trust, and other estate planning documents address what happens after death or incapacity. Couples typically need both.
Estate tax considerations for unmarried partners
Unmarried partners face a very different tax landscape than married couples, particularly when it comes to transferring assets between each other.
The unlimited marital deduction and why it does not apply to you
Legally married couples can transfer unlimited assets to each other, during life or at death, without triggering gift or estate tax, under the unlimited marital deduction. Unmarried partners receive no such benefit; assets left to a partner count against your individual exemption like any other transfer.
Strategies to minimize tax exposure
Trusts, careful gifting within annual exclusion limits, and coordinated beneficiary designations can help reduce tax exposure for unmarried partners. An estate planning lawyer can help structure gifts and trusts to minimize what is lost to tax.
Talk to an estate planning attorney at Ellingson Law
Unmarried couples cannot rely on California law to protect their partner the way marriage does, which makes estate planning for unmarried couples a necessity, not an option. At Ellingson Law, APC, we help unmarried partners throughout Chico and Butte County put wills, trusts, powers of attorney, and healthcare directives in place that reflect the relationship you actually have. Contact our office to schedule a consultation and build a plan.
Frequently Asked Questions
What happens if my unmarried partner dies without a will in California?
Without a will, California’s intestate succession laws distribute a deceased person’s estate to legal relatives only, typically a spouse, children, parents, or siblings. An unmarried partner is not considered a legal relative under these laws, no matter how long the relationship lasted. A surviving partner generally receives nothing unless they were named on a specific asset, such as a jointly titled home or a beneficiary designation on a retirement account or life insurance policy. Assets that pass through the estate itself will go to the deceased partner’s legal family instead, which is why a properly drafted will or trust naming your partner directly is essential.
Do unmarried couples have any rights to each other’s property in California?
Not automatically. California’s community property laws apply only to legally married couples and registered domestic partners, so unmarried partners have no default ownership rights to property acquired during the relationship, even if both contributed financially. Ownership generally follows the title or the deed, so whoever is named is treated as the legal owner, regardless of who paid for it. If you want your partner to have rights to shared property, title assets jointly, name your partner on beneficiary designations, or use a will or trust to direct specific assets to them. A cohabitation agreement can also help clarify expectations.
Can an unmarried partner make medical decisions for me in California?
Only if you have given them legal authority through an advance healthcare directive. Without this document, hospitals typically turn to your legal next of kin, such as a parent or sibling, to make medical decisions on your behalf if you become incapacitated, regardless of how close your relationship is with your partner. An advance healthcare directive lets you name your partner as your healthcare agent, giving them authority to make treatment decisions. This matters most if you are estranged from family members, since without written instructions, a hospital may still allow them access or input by default. Pairing the directive with a HIPAA authorization ensures your partner can access your medical information directly, rather than relying on providers to decide who counts as immediate family.
Does California recognize common law marriage?
No. California does not recognize common law marriage, regardless of how long a couple has lived together or presented themselves as married. Simply cohabitating with a partner in California, even for many years, creates no automatic marital rights, unlike in the small number of states that still recognize common law marriage. If a couple validly entered into a common law marriage in a state that does recognize it, California will generally honor that marriage under principles of interstate recognition. Otherwise, the only way to secure marriage-like protections is to register as domestic partners or put comprehensive estate planning documents in place.
What is a cohabitation agreement and do unmarried couples need one?
A cohabitation agreement is a private contract between partners that addresses financial matters during the relationship, such as how expenses are divided, how jointly acquired property will be handled if the couple separates, and how shared debts are managed. It functions similarly to a prenuptial agreement, but for couples who do not plan to marry. It is particularly valuable when partners have significantly different incomes, one contributes to property titled solely in the other’s name, or the couple wants clarity around shared expenses. It works alongside, not instead of, a will and other estate planning documents.
