A domestic partner affidavit in Texas is a notarized sworn statement, filed with an employer or a local county registry, declaring that you and your partner share a committed, interdependent household. Its main practical use is qualifying your partner for employer-sponsored health insurance or similar benefits. Texas has no statewide registry and no state law that recognizes domestic partnerships, so the affidavit only has the legal weight that the entity accepting it chooses to give it.
Where You Can File One in Texas
There is no statewide filing option. The Texas Department of State Health Services handles marriage licenses and vital records, but domestic partnerships are not on that list. No state agency keeps a registry, and no state statute governs them.
What exists instead is a mix of local government registries and private employer programs. Travis County has maintained a domestic partnership registry since 1993, and you do not need to be a Travis County resident to use it.1Travis County Clerk. Domestic Partnerships The City of Dallas offers an affidavit for its own employees, with specific eligibility rules including a minimum six-month cohabitation requirement.2City of Dallas. Affidavit of Domestic Partnership A number of other Texas cities and large private employers have similar programs, each with its own form and rules.
So the first question to answer is which affidavit you actually need. If you want health insurance coverage, use your employer’s form, usually available through HR or directly from the insurance carrier. If you want a public record of the relationship for other purposes, a local registry like Travis County’s is a separate filing.
What the Affidavit Requires You to Prove
The forms vary, but almost all of them ask you to swear to the same core facts. Expect to provide full legal names, dates of birth, and current addresses for both partners. Employer forms, such as the Blue Cross and Blue Shield of Texas affidavit, also ask for Social Security numbers so the carrier can process enrollment.3Blue Cross and Blue Shield of Texas. Affidavit of Domestic Partnership
You will typically have to affirm under oath that:
- Both of you are at least 18 and mentally competent.
- You share a primary residence. Joint leases, mortgage statements, or utility bills in both names help prove this.
- Neither of you is married to anyone else or in another domestic partnership.
- You are not related by blood in a way that would prevent marriage.
- You are financially interdependent, often shown through joint accounts, shared debts, or naming each other on wills or insurance.
Some employers layer on extra conditions. The City of Dallas, for instance, requires six consecutive months of cohabitation before you can file.2City of Dallas. Affidavit of Domestic Partnership Read your specific form before assuming any generic list applies.
How to Sign and Submit It
Both partners sign in front of a notary public. The notary verifies each signer’s identity and administers an oath that the statements are true, which is what gives the affidavit legal effect. Banks, shipping stores, and courthouse offices commonly offer notary services, and Texas law caps what a notary may charge for the service.4Texas Secretary of State. Notary Public Educational Information
For an employer affidavit, submission usually means uploading the notarized form to a benefits portal, though some companies still want the original mailed to HR. After the HR team or insurance carrier reviews it, coverage typically starts in the next billing cycle or at open enrollment, and you should get a confirmation.
If you are filing at the Travis County registry, both partners appear in person with a valid photo ID. The clerk provides a sample declaration on-site, or you can bring your own with notarized signatures already in place.5Travis County Clerk. Recording FAQ
The Tax Hit Most People Don’t Expect
This is where domestic partner benefits diverge sharply from spousal benefits. When an employer pays part of the premium for a legal spouse’s health coverage, that contribution is tax-free to the employee. For a domestic partner, the same employer contribution is generally taxable to you as “imputed income” unless your partner qualifies as your federal tax dependent.
The IRS does not treat domestic partnerships as marriage. Under Internal Revenue Code Sections 105 and 106, the income exclusion for employer-provided health coverage reaches only the employee, the employee’s spouse, children up to age 26, and tax dependents. A partner who does not meet the dependent definition falls outside the exclusion, so the fair market value of the employer’s share of your partner’s coverage gets added to your W-2, and you pay federal income tax, Social Security tax, and Medicare tax on it.
Your partner can qualify as your tax dependent only by meeting the IRS “qualifying relative” test. For 2026, that means your partner must live with you the entire year, earn less than $5,300 in gross income during the year, and get more than half of their financial support from you, with the relationship not violating local law.6Office of the Law Revision Counsel. 26 USC 152 – Dependent Defined7Internal Revenue Service. Rev. Proc. 2025-32 A partner who holds a regular job almost certainly earns too much to qualify, which is why most employees enrolling a domestic partner end up paying the extra tax. Ask HR what the imputed income amount will be before you enroll so a smaller paycheck does not catch you by surprise.
What the Affidavit Does Not Cover
The affidavit is a narrow tool. It may get your partner on your health plan and open a few other benefit doors, but it leaves large legal gaps that married couples simply do not face.
Inheritance and Property
Texas intestate succession law distributes property only to legally recognized relatives: spouse, children, parents, siblings, and more distant kin. An unmarried domestic partner has no automatic inheritance rights, no matter how long you lived together or how combined your finances were. If one partner dies without a will naming the other, everything passes to blood relatives. A properly drafted will is the only fix.
Social Security and Other Federal Benefits
Social Security survivor and spousal benefits require a legal marriage. A domestic partner cannot claim benefits on a deceased partner’s earnings record. The same goes for veterans’ survivor pensions and immigration sponsorship. Federal programs use federal definitions of “spouse,” and a Texas affidavit does not satisfy them.
COBRA Continuation Coverage
Federal COBRA law defines qualified beneficiaries as covered employees, their spouses, and their dependent children. Domestic partners are not on that list. If you lose your job, a spouse could continue coverage under COBRA for up to 18 months; your domestic partner has no equivalent federal right. Some employers voluntarily offer COBRA-like continuation to domestic partners, but most do not.
Medical Decisions If You Are Incapacitated
The affidavit does not give your partner authority to make medical decisions for you. In Texas, that authority defaults to a spouse, adult children, or parents. To put your partner in that role, you need a separate Medical Power of Attorney, signed before a notary or two qualified witnesses along with the required disclosure statement.
Documents That Fill the Gaps
Because the affidavit covers so little legal ground on its own, couples who are not marrying should put a small package of supporting documents in place:
- A will naming your partner as a beneficiary. Without one, Texas intestacy law ignores your partner entirely.
- A Medical Power of Attorney authorizing your partner to make healthcare decisions if you cannot.
- A Directive to Physicians (living will) setting out your preferences for end-of-life care.
- A Durable Financial Power of Attorney letting your partner pay bills and manage finances if you are incapacitated.
- Updated beneficiary designations on retirement accounts, life insurance, and bank accounts. These designations override your will, so keeping them current matters.
An estate planning attorney can prepare this package relatively quickly, and the cost is small compared to an unplanned fight over medical access or inheritance.
Ending a Domestic Partnership
Terminating the affidavit is administrative, not a court proceeding. You notify the employer or registry in writing that the partnership has ended. Most employer policies require the report within 30 days, and a late report can lead the insurer to seek reimbursement for claims paid after the partnership ended. Coverage usually ends on the last day of the current billing month, and many employers impose a waiting period, often six months, before you can file a new affidavit for a different person.
Because a former partner generally will not qualify for COBRA, plan the handoff before you file the termination. Loss of employer-sponsored coverage is a qualifying life event for Health Insurance Marketplace enrollment, opening a 60-day special enrollment window. Coordinating the timing keeps your former partner from going uninsured.
When Common-Law Marriage Is the Stronger Option
Texas still recognizes common-law marriage, called “informal marriage” under the Family Code. For couples who qualify, this gives you the full legal rights of a ceremonial marriage without a license or ceremony, which is far more protection than any affidavit provides.
To establish an informal marriage, you and your partner must agree to be married, live together in Texas as a married couple after that agreement, and represent to others that you are married.8State of Texas. Texas Family Code Chapter 2 – Section 2.401 Both partners must be at least 18, and neither can already be married to someone else. You can also formalize the marriage by signing a declaration at the county clerk’s office.
One timing rule matters: if you separate and no legal proceeding is filed within two years, Texas law creates a rebuttable presumption that you never agreed to be married.8State of Texas. Texas Family Code Chapter 2 – Section 2.401 The presumption can be overcome with evidence, but it makes proving the marriage considerably harder. If you already consider yourselves married, formalizing the status sooner protects you both.