If you and your partner are not married, California law does not automatically protect either of you. That is not a harsh judgment on your relationship. It is simply how the legal framework is structured. Without a formal estate plan in place, a surviving unmarried partner generally has no right to inherit, no authority to make medical decisions, and no automatic access to financial accounts. That can leave someone who has shared a life with another person in a devastating and entirely preventable situation.

Here is what unmarried couples in California need to understand and what to do about it.

What Happens Without a Plan

California's intestacy laws govern what happens to a person's assets when they die without a will or trust. Those laws distribute assets to legal relatives in a defined order: spouses, children, parents, siblings, and so on. An unmarried partner is not on that list. If your partner dies without a plan naming you as a beneficiary, you could receive nothing, regardless of how long you have been together or what your shared intentions were.

The same gap applies to decision-making. Without a valid healthcare directive and power of attorney naming you as agent, you likely cannot make medical decisions for your partner during a health crisis, cannot access their medical information, and cannot manage their finances or property if they become incapacitated. In some situations, a family member who has had little involvement in your partner's life could step in ahead of you.

These are not remote or unlikely scenarios. They are exactly the situations that come up in real life and that a straightforward estate plan is designed to prevent.

The Core Documents Every Unmarried Couple Needs

A complete plan for unmarried partners typically involves several coordinated pieces.

A revocable living trust is often the centerpiece. A properly funded trust allows assets to pass to your partner without going through probate, which means less delay, lower cost, and no public court proceeding. The trust can also provide for your partner during a period of incapacity and can accommodate more nuanced arrangements, such as allowing a partner to remain in a home for their lifetime with the property ultimately passing to children or other beneficiaries.

A will is still necessary even with a trust, primarily to capture any assets that were not transferred into the trust and to nominate guardians for minor children. Without a will expressly naming your partner, those assets could pass to relatives by default.

A financial power of attorney authorizes your partner to manage banking, bills, real estate, and other financial matters if you become incapacitated. Without it, your partner may not be able to access a joint account, pay a shared mortgage, or handle even routine financial tasks on your behalf.

An advance healthcare directive appoints your partner as your healthcare agent and outlines your treatment preferences. It should include a HIPAA authorization so that medical providers can communicate with your partner freely. Without this document, a hospital may not be able to share information with your partner at all, even in an emergency.

A disposition of remains directive clarifies your partner's authority to make decisions about funeral arrangements and related matters. This is often overlooked but can become a painful point of conflict with family members if it is not addressed.

Beneficiary Designations Matter More Than You Think

For assets like retirement accounts, life insurance policies, and payable-on-death bank accounts, beneficiary designations control who inherits regardless of what your will or trust says. If your retirement account still lists an ex-partner, a parent, or no one at all, your current partner may receive nothing from that asset even if your trust leaves everything to them.

Reviewing and updating beneficiary designations is one of the most important and most frequently neglected parts of estate planning. It should be done when you first put your plan in place and revisited every time something significant changes in your life.

Keeping Your Plan Current After Major Life Changes

An estate plan is not a one-time task. It needs to reflect your current life, relationships, and intentions. A few situations that should always prompt a review:

If you and your partner get married, California's community property rules and spousal rights change the legal landscape. Your plan should be updated to reflect your new legal status, including how assets are characterized and what rights each spouse holds.

If you separate or your relationship ends, former partners named as agents, executors, trustees, or beneficiaries should be replaced promptly. Beneficiary designations on retirement accounts and insurance policies do not update automatically, and removing a former partner from those designations may require specific plan procedures.

If you have or adopt a child, you need to nominate a guardian in your will, update your trust to provide for the child's needs, and adjust your beneficiary designations accordingly.

If your financial situation changes significantly, whether through a business sale, inheritance, major real estate purchase, or other liquidity event, your plan should be reviewed to confirm that the trust is properly funded and that your asset protection and tax planning strategies still make sense.

Conclusion 

For unmarried couples in California, a thoughtful estate plan is not a luxury or something to get around to eventually. It is the only legal framework that will protect your partner if something happens to you, and vice versa. The good news is that the core documents are straightforward to put in place and, once established, can be maintained with periodic reviews.

I work with unmarried couples throughout California to build coordinated plans that reflect their actual relationships and intentions. If you and your partner do not yet have a plan in place, or if your plan has not been reviewed in a while, I would be glad to help you take that next step.

Disclaimer: This post is for informational purposes only and does not constitute legal advice or create an attorney-client relationship.