A registered domestic partner in California is one of two adults who have filed a Declaration of Domestic Partnership with the California Secretary of State, creating a legal status that gives them nearly all of the same rights and responsibilities as married spouses under state law. The federal government, however, does not treat domestic partners as married, and that gap shapes how the status plays out in taxes, immigration, Social Security, and employer benefits.
Who Qualifies
California Family Code section 297 sets the eligibility rules. Both partners must share a common residence, be at least 18, and have the legal capacity to consent. Neither can already be married or in another domestic partnership that hasn’t been legally ended, and the two cannot be related by blood in any way that would prevent them from marrying in California.1California Secretary of State. Frequently Asked Questions
Since January 2020, the registry has been open to all couples regardless of sex. A reduced filing fee still applies when either partner is 62 or older, but age no longer limits who can register.
What You Get Under California Law
Under the California Domestic Partner Rights and Responsibilities Act of 2003, registered partners have the same rights, protections, and benefits as married spouses under state law, and they carry the same obligations.1California Secretary of State. Frequently Asked Questions
Assets and debts acquired during the partnership are community property, split equally if the relationship ends. Partners inherit from each other under California’s intestate succession rules even without a will. Each partner can make medical decisions for the other in an emergency and has hospital visitation rights. If the couple has children, custody, visitation, and child support follow the rules that apply to married parents. Partners owe each other a mutual duty of financial support, which can continue after the partnership ends as partner support, the equivalent of spousal support.
For California income taxes, registered partners must file as “Married/RDP filing jointly” or “Married/RDP filing separately.”2Franchise Tax Board. Registered Domestic Partner (RDP) Filing Status
What You Don’t Get Federally
Federal law treats registered partners as two unrelated individuals. That single fact drives most of the complications.
Federal Income Taxes
Partners cannot file a joint federal return. Each person files individually, typically as single or head of household if they qualify. Because California is a community property state, each partner must report half of the couple’s combined community income on their individual federal return and attach Form 8958 to show how the income is allocated.3Internal Revenue Service. Answers to Frequently Asked Questions for Registered Domestic Partners and Individuals in Civil Unions California treats you as married; the IRS treats you as two single people sharing community income. Expect extra paperwork every year.
Employer Health Benefits
Fully insured California health plans must offer domestic partners the same access as spouses. But because the federal government doesn’t recognize the partnership, the employer’s contribution toward a partner’s coverage is treated as taxable income to the employee. This “imputed income” raises the employee’s federal tax bill, a cost married spouses do not face for the same coverage.4California State Controller’s Office. Domestic Partnership FAQs A narrow exception exists if the partner qualifies as the employee’s tax dependent under IRS rules.
Immigration
A domestic partnership does not let a U.S. citizen sponsor a partner for a green card. Federal immigration law requires a spousal relationship, and USCIS defines eligible immediate relatives as spouses, unmarried children under 21, and parents of adult U.S. citizens.5U.S. Citizenship and Immigration Services. Green Card for Immediate Relatives of U.S. Citizen Couples who need immigration sponsorship have to marry.
Social Security
Spousal and survivor benefits are governed by federal law. Same-sex partners may qualify for certain benefits depending on their circumstances, and the Social Security Administration asks anyone who thinks they may be eligible to apply so the agency can evaluate the facts.6Social Security Administration. Do I Qualify for Benefits as a Spouse if I Am Now in, or the Surviving Spouse of, a Civil Union, Domestic Partnership, or Other Non-Marital Legal Relationship?
Why Some Couples Choose This Over Marriage
Given the federal limits, why would anyone pick a domestic partnership instead of marriage? For many older couples, the answer is federal benefits. The SSI benefit rate for a married couple is only 1.5 times the individual rate, so two unmarried recipients each collecting the full individual rate bring in more combined income than a married couple would.7Social Security Administration. Treatment of Married Couples in the SSI Program Registering as domestic partners secures the state-law protections without triggering that penalty. Similar logic applies to certain pension survivor benefits and veterans’ benefits tied to marital status.
How to Register
The primary document is the Declaration of Domestic Partnership, Form DP-1, available from the Secretary of State. Both partners list their legal names and mailing addresses and sign a sworn statement, under penalty of perjury, that they meet the eligibility rules.8California Secretary of State. Declaration of Domestic Partnership Form DP-1 Partners can also change a middle or last name on the declaration.
Couples who want their registration kept out of public records can file Form DP-1A, the confidential version. A confidential filing is a permanent record that is not open to public inspection unless a court orders it, and even the partners must appear in person or send a notarized written request to obtain copies afterward.9California Secretary of State. Forms and Fees
Both signatures must be notarized. California caps notary fees for an acknowledgment at $15 per signature. The completed form can be mailed to the Domestic Partners Registry in Sacramento or delivered in person to the Sacramento or Los Angeles office of the Secretary of State.8California Secretary of State. Declaration of Domestic Partnership Form DP-1
The filing fee is $33 if both partners are under 62, or $10 if either partner is 62 or older.9California Secretary of State. Forms and Fees Once the Secretary of State processes the declaration, the couple receives a filed copy and an official Certificate of Registration of Domestic Partnership.
How It Ends
Ending a registered domestic partnership is a formal legal process. There are two paths.
Couples who meet certain conditions can file a Notice of Termination of Domestic Partnership directly with the Secretary of State, bypassing the courts.10California Legislative Information. California Family Code FAM 299 The qualifying rules mirror summary dissolution: the partnership was short, the couple has no children together, neither partner owns real estate, and the couple’s property and debts fall under set financial limits.11Judicial Branch of California. Find Out if You Qualify for Summary Dissolution Both partners must agree.
When those conditions aren’t met, the couple goes through the superior court, much like a divorce. The court handles property division, partner support, and child custody if applicable.10California Legislative Information. California Family Code FAM 299
One significant difference from divorce: there is no California residency requirement for dissolving a domestic partnership registered in this state. Either partner can file in a California superior court even if neither currently lives here.11Judicial Branch of California. Find Out if You Qualify for Summary Dissolution That rule exists because couples who moved away could otherwise find no court anywhere willing to end the partnership.
If You Move Out of California
Marriage is recognized in every state. Domestic partnerships are not. Only a handful of states have their own domestic partnership or civil union frameworks, and no federal rule forces other states to honor a California partnership. Move to a state that doesn’t recognize the status and you could lose medical decision-making authority, hospital visitation rights, and property protections you had here. For couples who may relocate, this portability gap is one of the strongest practical reasons to choose marriage instead.
The reverse is simpler. California recognizes legal unions formed in other states or countries that are substantially equivalent to a domestic partnership, even if the other jurisdiction uses a different name.12California Legislative Information. California Family Code FAM 299.2 A civil union registered elsewhere is treated as a valid domestic partnership once you’re here.