TN 66 (11-25)

PR 05005.008 Connecticut

A. PR 25-006 Status as “Spouse” for Medicare Part B Special Enrollment Period (SEP) Related to Group Health Plans: Connecticut Law – Alleged Opposite-Sex Domestic Partnership

Date: September 22, 2025

1. Syllabus

The question is whether an applicant and number holder are “spouses” for purposes of the Medicare Part B Special Enrollment Period (SEP) related to group health plans where they allege an opposite-sex domestic partnership in Connecticut. SSA and CMS consider someone to be a “spouse” if (1) he or she is validly married to an individual under the laws of the State of the individual’s domicile at the time the individual files for benefits, or (2) he or she has the right to inherit a spouse’s share of an individual’s intestate personal property under the intestate succession laws of the State of the individual’s domicile at the time of filing. The applicant and the number holder are not validly married under Connecticut law. Connecticut law does not authorize domestic partnerships under state law. Further, only parties to a valid marriage can qualify as a surviving spouse with the right to inherit a spouse’s share under Connecticut intestate succession law. Thus, given the lack of a valid marriage under Connecticut law, the applicant and the number holder are not “spouses” for Title II benefits and consequently for purposes of the Medicare Part B SEP related to group health plans.

2. Opinion

QUESTION PRESENTED

You asked whether J~ (Applicant) and the number holder R~ (NH) are “spouses” for purposes of the Medicare Part B Special Enrollment Period (SEP) related to group health plans where the Applicant alleges that she and the NH are opposite-sex domestic partners in Connecticut.

ANSWER

No. SSA and CMS consider an individual to be a “spouse” for purposes of the Medicare Part B SEP related to group health plans if the individual is a spouse for benefit eligibility purposes under Title II of the Social Security Act (Act). See POMS HI 00805.266A. For Title II benefits, a “spouse” is someone who (1) is married to an individual under the laws of the State of the individual’s domicile at the time the individual files for benefits, or (2) has the right to inherit a spouse’s share of an individual’s intestate personal property under the intestate succession laws of the State of the individual’s domicile at the time of filing. See 42 U.S.C. § 416(h)(1)(A); 20 C.F.R. §§ 404.344, 404.345; POMS GN 00210.004, GN 00305.005A, RS 00202.001A.1. The Applicant and the NH are not validly married under Connecticut law. Connecticut law does not authorize domestic partnerships under state law. Further, only parties to a valid marriage can qualify as a surviving spouse with the right to inherit a spouse’s share under Connecticut intestate succession law. Thus, given the lack of a valid marriage under Connecticut law, we believe there is legal support for the agency to find that the Applicant and the NH are not “spouses” for Title II benefits and consequently for purposes of the Medicare Part B SEP related to group health plans.[1] See 42 U.S.C. §§ 416(h)(1)(A), 1395p(i)(1); 20 C.F.R. § 404.345; 42 C.F.R. § 407.20; POMS GN 00210.700B.1, HI 00805.266A, HI 00805.270A.1.

BACKGROUND

It is our understanding that the Applicant declined enrollment in Medicare Part B during the initial enrollment period, and you are seeking legal advice on whether the Applicant and the NH are “spouses” for purposes of the Medicare Part B SEP related to group health plans.[2] You advised that the Applicant alleges she is the opposite-sex domestic partner of the NH in Connecticut. She submitted documents to support her claim that she is a domestic partner, including a bank statement showing both individuals on a joint account at the same address in Connecticut, mortgage information indicating joint ownership of their residence in Connecticut, and a health insurance coverage summary for October 2024 listing the NH as the employee and the Applicant as his domestic partner and a covered individual for health coverage. There is no allegation or evidence that the Applicant and the NH are married.

ANALYSIS

A. Federal Law and Policy: Status as a “Spouse” for the Medicare Part B Special Enrollment Period Related to Group Health Plans

Medicare, established under Title XVIII of the Social Security Act (Act), is a federally subsidized health insurance program for individuals age 65 or older and certain qualified individuals under age 65. See 42 U.S.C. § 1395 et seq. An individual who becomes entitled to Medicare Part A (Hospital Insurance) may choose to decline enrollment in Medicare Part B (Medical Insurance), which requires a payment of a monthly premium. See 42 U.S.C. §§ 1395c – 1395i-6 (Part A), 1395j – 1395w-6 (Part B); 42 C.F.R. § 407.17; POMS HI 00805.001A, HI 00805.005A, HI 00805.015, HI 00805.035, HI 00805.055. An individual may later choose to enroll in Part B during a general enrollment period, even after turning it down during his or her initial enrollment period but usually must pay a late enrollment penalty (increased premium), unless the individual qualifies for a Special Enrollment Period (SEP). See 42 U.S.C. §§ 1395p(i), 1395q(e), 1395r(b); 42 C.F.R. §§ 407.20, 408.22; POMS HI 01001.010, HI 00805.025.

An individual may qualify for a SEP if he or she is covered under a group health plan based on the individual’s own current employment status or a spouse’s current employment status. See 42 U.S.C. § 1395p(i)(1); 42 C.F.R. § 407.20; POMS HI 00805.265, HI 00805.266A, HI 00805.270A.1. SSA and CMS consider an individual to be a “spouse” for purposes of the SEP related to group health plans if he or she is a spouse for benefit eligibility purposes under Title II of the Act. See POMS HI 00805.266A. Title II in turn defines a “spouse” as someone who (1) is married to the individual under the laws of the State of the individual’s domicile at the time the individual files for benefits, or (2) has the right to inherit a spouse’s share of the individual’s intestate personal property under the intestate succession laws of the State of the individual’s domicile at the time of filing. See 42 U.S.C. § 416(h)(1)(A); 20 C.F.R. §§ 404.344, 404.345; POMS GN 00305.005A, RS 00202.001A. If an individual is not married but is in a valid non-marital legal relationship that conveys the right to inherit a spouse’s share under state intestate succession law, SSA and CMS consider the individual to be a “spouse” for Title II benefit purposes and for the SEP. See 42 U.S.C. § 416(h)(1)(A)(ii); 20 C.F.R. § 404.345; POMS RS 00202.001A.1, GN 00210.004, GN 00210.700B.1,[3] GN 00305.005A.

Here, to determine status as a “spouse” for the Medicare Part B SEP related to group health plans, we consider whether the Applicant and the NH are validly married or whether their alleged opposite-sex domestic partnership in Connecticut conveys spousal inheritance rights under Connecticut intestate succession law.

B. Connecticut Law on Marriage and the Right to Inherit as a Surviving Spouse’s Share under Connecticut Intestate Succession Law

Here, there is no evidence or claim of a valid ceremonial marriage between the Applicant and the NH under Connecticut’s state laws. See Conn. Gen. Stat. Ann. §§ 46b-20 – 46b-38z (marriage statutes); Conn. Gen. Stat. Ann. § 46b-20(4) (“‘Marriage’ means the legal union of two persons.”). The Applicant alleges that she and the NH live together as opposite-sex domestic partners in Connecticut. Connecticut state law does not authorize or recognize domestic partnerships on a state-wide basis or provide for a state-wide domestic partnership registry.[4] See Newsome v. AAA Insurance Company, No. 21-6108030-S, 2024 WL 1878659, at *6 (Conn. Super. Ct. April 23, 2024) (“Domestic partnerships are, in fact, not recognized in Connecticut as stand-alone status….no status of domestic partnership is possible under Connecticut law….”). Further, Connecticut law does not authorize common-law marriage or living arrangements or informal commitments entered into in Connecticut as valid marriages. See McAnerney v. McAnerney, 334 A.2d 437, 441-442 (Conn. 1973) (“Although other jurisdictions may recognize common-law marriage or accord legal consequences to informal marriage relationships, Connecticut definitely does not.”). “[A]lthough two persons cohabitate and conduct themselves as a married couple, [Connecticut] law neither grants to nor imposes upon them marital status.” Id. at 442; see also State ex rel. Felson v. Allen, 29 A.2d 306, 308 (Conn. 1942) (“Cohabitation does not make a marriage.... Our law does not recognize common-law marriages.” [Internal quotation marks omitted.]). Thus, under Connecticut law, cohabitation, in and of itself, does not create any legal or support obligations. See Boland v. Catalano, 521 A.2d 142, 145 (Conn. 1987) (“rights and obligations that attend a valid marriage simply do not arise where the parties choose to cohabit outside the marital relationship”); see also Loughlin v. Loughlin, 910 A.2d 963, 643-644 (Conn. 2006) (Connecticut does not recognize common-law marriage and has drawn a clear distinction between marriage and cohabitation).

Further, only spouses in a legal marriage can inherit a surviving spouse’s share under Connecticut’s intestate succession law. According to Connecticut intestate succession law, if an individual dies without a will, the individual’s estate passes to his or her heirs, including any “surviving spouse.” See Conn. Gen. Stat. Ann. § 45a-437 (intestate succession and distribution to a spouse). Connecticut intestate succession statutes do not define “surviving spouse.” In interpreting statutes to determine the legislative intent, courts look at the plain meaning of the text of the statute and refer to dictionaries to determine the plain meaning of an undefined statutory term. See Conn. Gen. Stat. Ann. § 1-2z; State v. Moore, 336 A.3d 1222, 1228-1229 (Conn. 2025); State v. Inzitari, 329 A.3d 215, 223-224 (Conn. 2025). Dictionaries define “spouse” as a “married person: husband, wife” and a “surviving spouse” as a “spouse who outlives the other spouse.” Merriam-Webster.com Dictionary, spouse, Merriam-Webster, https://www.merriam-webster.com/dictionary/spouse (last visited Sept. 17, 2025); Black’s Law Dictionary, surviving spouse (11th ed. 2019). Further, Connecticut courts considering the right to inherit as a surviving spouse under intestate succession law have required a valid marriage to the decedent. See e.g., Mongillo v. Estate of Bevenesee, No. 196031587S, 2020 WL 3120340, at *4 (Conn. Super. Ct. May 12, 2020) (finding that the probate court properly considered whether a Mexican divorce decree was valid in order to determine whether the plaintiff was the decedent’s surviving spouse for intestate inheritance purposes). Because the Applicant and the NH did not have a valid marriage, we believe Connecticut courts would find that the Applicant does not qualify as the NH’s “surviving spouse” entitled to inherit a spouse’s share of the NH’s property under Connecticut intestate succession law.

In summary, the Applicant and the NH are not validly married under Connecticut law. Connecticut law does not authorize domestic partnerships under state law. Only parties to a valid marriage can qualify as a surviving spouse with the right to inherit under Connecticut intestate succession law.

CONCLUSION

Because the Applicant and the NH are not validly married under Connecticut law, we believe there is legal support for the agency to find that the Applicant and the NH are not “spouses” for purposes of the Medicare Part B SEP related to group health plans.


Footnotes:

[1]

Other States may recognize a domestic partnership or other non-marital legal relationships that convey the same rights as marriage, including the right to inherit a spouse’s share under state intestate succession law. See e.g.,PR 05005.053 - Washington E. PR 17-023 Request on Opposite-Sex Washington Domestic Partnership Eligibility for Medicare Special Enrollment Period (Dec. 6, 2016) (advising that because Washington state-registered domestic partners share the same rights and benefits as a married couple under Washington state law, including the right to inherit a spouse’s share under Washington intestate succession law, there was legal support for the agency to find that the claimant is the NH’s spouse for purposes of the Medicare Part B SEP related to group health plans where the claimant and the NH had a valid opposite-sex registered domestic partnership in Washington).

[2]

Consistent with the scope of your legal opinion, we have not addressed equitable relief for domestic partners covered under a group health plan. POMS HI 00805.322 sets forth the policy and requirements for such equitable relief.

[3]

“Same-sex marriages are treated the same as opposite-sex marriages for purposes of the SEP. The sex of the married individuals, domicile and date of marriage are not factors in determining eligibility for the SEP. Aged individuals in other non-marital legal relationships (NMLR same-sex or opposite-sex), such as civil unions and domestic partnerships, at the time of the SEP request are not considered spouses and do not meet eligibility requirements for the SEP. Disabled individuals in NMLR (same-sex or opposite-sex), such as civil unions and domestic partnerships, are not considered spouses, but may be considered family members for purposes of eligibility for the SEP. Under certain circumstances, we will treat a couple’s NMLR, such as a civil union or domestic partnership, as a marital relationship for Medicare benefit purposes. For more information, see GN 00305.005 and GN 00210.004.” POMS GN 00210.700B.1. These provisions explain that the agency can treat a couple’s non-marital legal relationship as a marital relationship for Title II purposes when it conveys the right to inherit a spouse’s share under state intestate succession law per section 216(h)(1)(A)(ii) of the Act. See GN 00210.004A, GN 00305.005A.

[4]

We note that Connecticut state statutory law authorized civil unions for same-sex couples (not opposite-sex couples) for a brief five-year period. See POMS GN 00210.004D. From October 1, 2005 to September 30, 2010, Connecticut state statutory law authorized civil unions for same-sex partners that conferred all the rights and privileges guaranteed to opposite-sex spouses of marriages. See 2005 Conn. Acts P.A. 05-10; 2009 Conn. Acts P.A. 09-13; Conn. Gen. Stat. Ann. §§ 46b-38aa – 46b-39. Following the legalization of same-sex marriage in Connecticut per the Connecticut Supreme Court’s decision in Kerrigan v. Comm’r of Pub. Health, 957 A.2d 407 (Conn. 2008), the Connecticut General Assembly amended the civil union law to allow parties to convert their existing civil unions to marriages by obtaining marriage licenses by September 30, 2010. See Conn. Gen. Stat. Ann. § 46b-38qq. On October 1, 2010, all Connecticut civil unions automatically converted to marriages by operation of law. See id. § 46b-38rr. Thus, Connecticut law no longer authorizes civil unions. The Applicant and the NH, as an opposite-sex couple, would not have been eligible to enter into a civil union during that brief period.


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http://policy.ssa.gov/poms.nsf/lnx/1505005008
PR 05005.008 - Connecticut - 11/20/2025
Batch run: 11/20/2025
Rev:11/20/2025