Connecticut Domestic Partnership: Healthcare, Property, and Inheritance

A domestic partnership in Connecticut is not a legal status under state law. The state never enacted a comprehensive domestic partnership statute, so what exists today is a patchwork: a handful of city clerks maintain their own registries, and many private employers extend certain benefits to partners who sign an affidavit. Neither route gives you the automatic rights that marriage confers, and none of it reaches federal benefits like Social Security, joint tax filing, or immigration sponsorship.1Social Security Administration. PR 05005.008 Connecticut If you want real protection for your partner, you build it yourself through a set of legal documents.

Why Connecticut Has No Statewide Domestic Partnership

Connecticut created civil unions for same-sex couples in 2005 and then legalized same-sex marriage in 2008 following the Connecticut Supreme Court’s decision in Kerrigan v. Commissioner of Public Health. The legislature rewrote the marriage statute in gender-neutral terms in 2009. Once full marriage equality arrived, the state never went back and built out a broad domestic partnership framework. Couples who choose not to marry, or who cannot marry for personal or financial reasons, are left with whatever local registrations and employer policies happen to exist.

What a Registered Domestic Partnership Actually Gets You

Hartford is one of the Connecticut cities that keeps a domestic partnership registry through its Town and City Clerk’s office.2City of Hartford. Town and City Clerk Other municipalities may run their own, with requirements that vary from one city to the next. Typical eligibility criteria include being at least 18, sharing a residence, not being closely related by blood, and not already being married or partnered with someone else. Most registries require a signed, notarized affidavit, and some ask for proof of financial interdependence such as a joint bank account, shared lease, or co-owned property.

A registration is useful as documentation. It can help you prove the relationship exists when you enroll in employer benefits, when you show up at a hospital, or when an institution asks for verification. It does not give you any rights that Connecticut law reserves for spouses.

Private employers set their own rules for partner benefits like health insurance and bereavement leave. Employer definitions of “domestic partner” often differ from municipal ones, and most companies want their own affidavit rather than a municipal certificate. Check your HR policy before assuming a city registration is enough.

Healthcare Decisions and Hospital Access

Without paperwork, you have no automatic right to make medical decisions for your partner. Connecticut law lets hospitals defer to biological family, and if a parent or sibling shows up with a different view of treatment, you can be shut out.

The fix is a healthcare proxy. Any Connecticut resident 18 or older can appoint a healthcare representative empowered to make all medical decisions on their behalf, including whether to accept or refuse treatment and whether to continue life support. The document must be signed, dated, and witnessed by at least two people.3Justia Law. Connecticut Code 19a-575a – Form of Document Re Health Care Instructions, Appointment of Health Care Representative You do not need to be married or related.

Visitation is somewhat protected at the federal level. Medicare- and Medicaid-funded facilities must allow patients to designate their own visitors, including domestic partners, and may not discriminate based on sexual orientation.4U.S. Department of Health and Human Services. FAQs on Patient Visitation at Certain Federally Funded Entities and Facilities Still, carry a written visitation authorization. A night-shift administrator may not know the federal rule.

Financial Authority During Incapacity

If your partner has a stroke, you cannot walk into a bank and access their accounts because you live together. You cannot sign for their investments, pay their bills, or deal with their creditors. A durable financial power of attorney solves that.

Under Connecticut’s Uniform Power of Attorney Act, any adult can grant another person broad authority to handle financial matters, and the power is durable by default, meaning it survives incapacity unless the document says otherwise.5Connecticut General Assembly. Chapter 15c – Connecticut Uniform Power of Attorney Act The agent can manage bank accounts, pay debts, handle investments, file tax returns, and conduct virtually any financial transaction the principal could handle personally. Every domestic partner should pair this with a healthcare proxy. Without both, a single crisis can lock you out of your partner’s medical and financial life at the same moment.

Health Insurance and the Tax Cost of Partner Coverage

Whether you can add a domestic partner to your health insurance is entirely up to your employer’s plan. Connecticut does not require private insurers to extend coverage to partners. Many large employers offer it voluntarily, and enrollment usually calls for a notarized affidavit and sometimes evidence of shared finances or a shared residence.

Even when coverage is available, the tax treatment is worse than for spouses. Federal law does not treat domestic partners as spouses, so the portion of the premium your employer pays for your partner’s coverage counts as taxable income to you.6Internal Revenue Service. Answers to Frequently Asked Questions for Registered Domestic Partners and Individuals in Civil Unions That “imputed income” raises your income tax and your Social Security and Medicare payroll tax. If the employer contributes $500 a month toward your partner’s coverage, that adds $6,000 to your taxable wages for the year. Spousal coverage carries no such charge.

There is a narrow exception. If your partner qualifies as your tax dependent under Internal Revenue Code Section 152, meaning you provide more than half of their support and their gross income falls below the dependency exemption threshold, the coverage can be excluded from your income. Most working partners will not meet that test.

Property and What Happens if You Split Up

Married couples in Connecticut benefit from equitable distribution at divorce. A court can divide all marital property, including assets titled in only one spouse’s name.7Justia Law. Connecticut Code 46b-81 – Assignment of Property and Transfer of Title Domestic partners get none of that. If you separate, each of you keeps whatever is titled in your name. Twenty years of contributions to a home your partner owns are legally irrelevant unless you took steps to protect yourself.

The protective step is a cohabitation agreement, sometimes called a domestic partnership agreement. It is a written contract that sets out how property, debts, and support will be handled during the relationship and at separation. Connecticut courts generally enforce written contracts between adults, and a well-drafted agreement can replicate many of the property protections that divorce law provides automatically. Attorney fees for drafting one typically run from a few hundred dollars to about $750.

Inheritance and Estate Planning

Connecticut’s intestate succession law directs a deceased person’s estate to their surviving spouse and biological relatives.8Justia Law. Connecticut Code 45a-437 – Intestate Succession, Distribution to Spouse A domestic partner inherits nothing, regardless of how long you lived together or how blended your finances were.1Social Security Administration. PR 05005.008 Connecticut If your partner dies without a will, their assets go to parents, siblings, or more distant relatives. Every domestic partner needs, at minimum, a valid will. A revocable living trust adds the benefit of keeping assets out of probate, which speeds distribution and keeps the transfer off the public record.

Estate tax rules also cut against unmarried partners. When a spouse dies, the unlimited marital deduction lets any amount pass to the surviving spouse free of federal estate tax.9Office of the Law Revision Counsel. 26 USC 2056 – Bequests, Etc., to Surviving Spouse Domestic partners do not qualify. Assets your partner inherits above the individual estate tax exemption, which is $15 million for deaths in 2026, are subject to federal estate tax at rates up to 40%.10Internal Revenue Service. What’s New – Estate and Gift Tax Most couples sit well below that threshold, but partners with substantial combined assets should work with an estate planning attorney on trusts and lifetime gifting.

Retirement Accounts and Beneficiary Designations

Federal retirement law creates another gap. Under ERISA, if a plan participant dies before collecting a pension or defined-contribution balance, the benefits automatically go to a surviving spouse, and the spouse must sign a notarized waiver before the participant can name anyone else.11GovInfo. 29 USC 1055 – Requirement of Joint and Survivor Annuity and Preretirement Survivor Annuity Domestic partners have no equivalent default. If your partner never filled out a beneficiary form, or filled one out years ago pointing at a parent or ex, the plan follows what the form says.

Both partners should review and update beneficiary designations on every retirement account, life insurance policy, and bank account that has one. A beneficiary designation overrides a will in most cases, so a stale form defeats even careful estate planning.

Parental Rights and Second-Parent Adoption

When a married couple has a child, both spouses are presumed to be legal parents regardless of biology. Domestic partners are not. If one partner gives birth, the other has no automatic parental rights, no custody claim, and no standing to make decisions about the child’s education, healthcare, or welfare.

Second-parent adoption is the fix. Connecticut law allows a person sharing parental responsibility with a child’s legal parent to adopt the child without terminating the existing parent’s rights.12Connecticut General Assembly. Public Act 16-156 – An Act Concerning Second Parent Adoption Once the adoption is finalized, the adopting partner is a full legal parent with identical rights, including custody, visitation, and decision-making. If the couple later separates, both parents have enforceable custody and visitation rights. If the adoptive parent dies, the child can inherit and may qualify for Social Security survivor benefits.

The process runs through Probate Court, which may order a background investigation or home study, though it can waive those requirements in second-parent cases when no cause for concern exists. Total costs including filing fees and attorney representation typically range from about $650 to $5,000, depending on complexity. Without an adoption, a non-biological parent can lose all access to a child they raised if the relationship ends or the biological parent dies.

Federal Benefits a Domestic Partnership Does Not Reach

Several of the most valuable protections in the U.S. legal system are tied to marital status under federal law. No domestic partnership, whether registered with a city or recognized by an employer, substitutes for marriage in the federal system.

For couples where one partner is not a U.S. citizen, or where survivor benefits represent significant retirement income, these exclusions are often the reason to marry rather than stay partnered.

Ending a Domestic Partnership

Because there is no statewide domestic partnership law, there is no dissolution process comparable to divorce. If you registered through a city like Hartford, ending the partnership generally means filing a termination notice with the city clerk. Some municipalities apply a short waiting period. If you used the registration to enroll in employer benefits, notify your employer and insurer promptly, because continued coverage after the partnership ends can create liability.

The harder work is untangling shared finances and property. Without a cohabitation agreement, you have no access to Connecticut’s equitable distribution framework, which is available only through divorce.7Justia Law. Connecticut Code 46b-81 – Assignment of Property and Transfer of Title Property goes to whoever holds title. Joint accounts belong to both holders. Joint debts remain the legal responsibility of everyone whose name is on the account after the relationship ends, because a private agreement between partners cannot release either of you from an obligation to a creditor.

Custody and child support disputes go through family court and turn on the child’s best interests rather than the parents’ relationship status. Only a person with legal parental standing can assert custody. A partner who never completed a second-parent adoption may have no enforceable right to visitation, no matter how involved they were in raising the child.

The Documents Every Connecticut Domestic Partner Needs

Because so few rights flow automatically from a domestic partnership, the protections you actually have are the ones you create. At a minimum:

None of these documents is expensive relative to what is at stake. Taken together, they build the safety net that marriage provides automatically and a domestic partnership does not.