Legal separation and divorce in Connecticut use identical grounds, the same $360 filing fee, and the same 12-month residency rule, but only divorce ends the marriage. A legal separation under Conn. Gen. Stat. § 46b-40 divides property and sets support while keeping spouses legally married, preserving health insurance and benefit eligibility.
The core difference between separation and divorce in Connecticut comes down to one fact: a legal separation decree leaves you legally married, while a dissolution of marriage permanently ends the marriage. Connecticut governs both remedies under the same chapter of statutes (Title 46b, Chapter 815j), which is why the process, costs, and financial orders look nearly identical. Couples choose legal separation over divorce for reasons tied to religion, health insurance, military or pension benefits, or simple uncertainty about ending the marriage for good.
Key Facts: Legal Separation vs. Divorce in Connecticut
| Factor | Legal Separation | Divorce (Dissolution) |
|---|---|---|
| Filing Fee | $360 (verify with clerk) | $360 (verify with clerk) |
| Waiting Period | 90-day cooling-off period | 90-day cooling-off period |
| Residency Requirement | 12 months before decree | 12 months before decree |
| Grounds | Same 10 grounds (§ 46b-40) | Same 10 grounds (§ 46b-40) |
| Property Division Type | Equitable distribution | Equitable distribution |
| Marriage Status After Decree | Still legally married | Marriage ended; free to remarry |
| Can Remarry? | No | Yes |
Filing fees are current as of March 2026. Verify with your local clerk before filing. The governing statutes are Conn. Gen. Stat. § 46b-40 (grounds), Conn. Gen. Stat. § 46b-44 (residency), and Conn. Gen. Stat. § 46b-65 (conversion of separation to divorce).
What Is the Difference Between Separation and Divorce in Connecticut?
The difference between separation and divorce in Connecticut is that a legal separation keeps the marriage legally intact while a divorce dissolves it completely. Both decrees can divide marital property, set alimony, and establish child support under Conn. Gen. Stat. § 46b-81, but only a divorce restores each spouse's legal capacity to remarry.
Connecticut law treats legal separation and dissolution of marriage as parallel remedies decided in the same Superior Court family docket. When a judge enters a decree of legal separation, the couple receives binding court orders on property, debt, support, and parenting, yet they remain married in the eyes of the law. This is distinct from an informal trial separation, where spouses simply live apart with no court order. A legal separation is a formal judicial proceeding requiring a complaint, service of process, financial affidavits, and a final court hearing. The practical advantage is that a separated spouse retains legal-spouse status for purposes that depend on an intact marriage, such as certain insurance plans, military benefits, and pension survivor rules, while still gaining the financial certainty of a court order.
What Are the Grounds for Legal Separation and Divorce in Connecticut?
Connecticut requires identical grounds for both legal separation and divorce, listed in Conn. Gen. Stat. § 46b-40. The statute provides 10 grounds, including the no-fault basis of irretrievable breakdown, plus fault grounds such as adultery, intolerable cruelty, and willful desertion for one year. Over 90% of Connecticut cases proceed on no-fault grounds.
Under § 46b-40(c), a court may grant a decree of dissolution or legal separation on any of these causes: (1) irretrievable breakdown of the marriage; (2) the parties living apart due to incompatibility for at least 18 continuous months with no reasonable prospect of reconciliation; (3) adultery; (4) fraudulent contract; (5) willful desertion for one year with total neglect of duty; (6) seven years' absence; (7) habitual intemperance; (8) intolerable cruelty; (9) a life sentence or commission of an infamous crime; and (10) legal confinement due to mental illness. Because the same statute governs both remedies, a spouse cannot obtain a legal separation on grounds that would not also support a divorce. Most petitioners cite irretrievable breakdown, a no-fault ground that requires no proof of wrongdoing and avoids airing private misconduct in court. Fault grounds remain available and can occasionally influence alimony or property division.
How Much Does Legal Separation or Divorce Cost in Connecticut?
The filing fee for both legal separation and divorce in Connecticut is $360 as of March 2026, set by the Connecticut Judicial Branch. Service of process by a state marshal adds roughly $50, bringing minimum court costs to about $410. Cases with minor children add $300 for two mandatory parenting education programs ($150 per parent).
The core court costs for legal separation and divorce are essentially identical because both follow the same procedural track. As of March 2026, expect a $360 filing fee plus approximately $50 for marshal service, for a base of about $410. Verify the current fee with your local Superior Court clerk, as the Judicial Branch periodically adjusts it. Beyond filing costs, total expenses vary widely. A do-it-yourself uncontested case typically runs $410 to $1,000 all-in. An attorney-assisted uncontested case generally costs $1,500 to $5,000, while contested cases involving custody disputes, business valuations, or trial can reach $15,000 or far more per spouse. If you cannot afford the fee, file an Application for Waiver of Fees (form JD-FM-75); Connecticut courts grant waivers for filers below 125% of the federal poverty level or those receiving SNAP, TANF, or Medicaid.
What Are the Residency and Waiting Period Rules?
Connecticut requires that at least one spouse reside in the state for 12 months before the court can finalize either a legal separation or a divorce, under Conn. Gen. Stat. § 46b-44. A mandatory 90-day waiting period also applies after the case is filed, meaning the earliest a contested case typically concludes is roughly three months.
The 12-month residency rule is a finalization requirement, not a filing requirement. You may file your complaint immediately after establishing a Connecticut home, but the court cannot enter a final decree until one spouse has lived in the state for 12 continuous months, or until the cause of action arose in Connecticut, or one spouse was domiciled here at the time of marriage and returned with intent to stay. The residency clock starts when you established your Connecticut home, not when you filed paperwork. Separately, Conn. Gen. Stat. § 46b-67 imposes a 90-day waiting period from the return date before the court may proceed to judgment. During this window, couples often negotiate a settlement agreement. Connecticut also offers an expedited nonadversarial track that can finalize in as little as 30 days for short marriages (9 years or less) with no minor children and full agreement on all issues.
How Does Property Division Work in a Legal Separation vs. Divorce?
Property division is identical in legal separation and divorce in Connecticut because both use equitable distribution under Conn. Gen. Stat. § 46b-81. Equitable means fair, not necessarily a 50/50 split. Connecticut is an all-property state, meaning the court can divide every asset either spouse owns, including premarital and inherited property.
Connecticut's equitable-distribution standard gives judges broad discretion to divide all marital and separate property in whatever proportions the court deems fair. Under § 46b-81, the court weighs factors including the length of the marriage, the causes of the breakdown, each spouse's age, health, occupation, income, vocational skills, employability, estate, and contribution to acquiring or preserving assets. Unlike community-property states, Connecticut does not presume an equal split, and outcomes range widely. A long-marriage homemaker may receive well over half the estate, while a short childless marriage may end with each spouse keeping what they brought in. Critically, a legal separation decree divides property with the same finality as a divorce decree. Spouses who later convert their separation into a divorce generally do not get a second chance to relitigate the property division, since the financial orders were already entered at the separation stage.
How Do You Convert a Legal Separation Into a Divorce in Connecticut?
Either spouse may convert a Connecticut legal separation into a divorce at any time after the separation decree by petitioning the same Superior Court, under Conn. Gen. Stat. § 46b-65. Because the financial orders were already set during separation, conversion is usually a streamlined process, and a 2021 amendment lets the court enter the decree without requiring either party to appear.
Connecticut's conversion statute makes legal separation a practical stepping stone to divorce. Under § 46b-65(b), at any time after a decree of legal separation, either party may petition the court in the judicial district where the decree was entered for a decree dissolving the marriage. Public Act 21-104 (effective June 28, 2021) added a provision allowing the court to enter the dissolution decree without requiring the presence of either party, provided the petitioner attests that no restraining order under § 46b-15 or protective order under § 46b-38c is in effect or pending. If only one spouse seeks conversion, the court may hold a brief hearing. Separately, under § 46b-65(a), spouses who reconcile can file a declaration stating they no longer wish to be legally separated, language updated by Public Act 22-26 in 2022, which vacates the separation decree and restores the marriage to its normal legal status.
Why Do Couples Choose Legal Separation Over Divorce?
Couples in Connecticut choose legal separation over divorce primarily to preserve health insurance, retain benefit eligibility tied to marriage length, honor religious objections to divorce, or keep the door open for reconciliation. Military spouses near the 20/20/20 threshold and spouses approaching the 10-year Social Security mark have especially strong reasons to separate rather than divorce.
The judicial-separation path serves several distinct goals that a divorce cannot. Health insurance is a common driver: some employer plans still permit a legally separated spouse to remain covered, whereas a divorced spouse loses coverage (apart from COBRA continuation). For military families, the 20/20/20 rule grants a former spouse lifetime TRICARE benefits only if the marriage, the service member's creditable service, and their overlap each reached 20 years; a spouse at 19 years can separate now and convert to divorce after crossing 20 years to lock in those benefits. Social Security offers a parallel incentive: a spouse can claim benefits on the other's record only if the marriage lasted at least 10 years, so couples near that mark may separate to preserve eligibility. Religious convictions against divorce, the desire to maintain a legal framework during a trial period, and the possibility of reconciliation round out the most frequent reasons couples in Connecticut pursue separate maintenance instead of a final dissolution.
Is Separate Maintenance the Same as Alimony in Connecticut?
Separate maintenance and alimony function the same way in a Connecticut legal separation, both ordered under Conn. Gen. Stat. § 46b-82. The term separate maintenance historically described support paid to a still-married but separated spouse. Connecticut courts use the same statutory factors, length of marriage, earning capacity, and station in life, to set support in separation and divorce alike.
In many states, separate maintenance is a distinct legal label for support ordered when spouses live apart without divorcing. Connecticut folds this concept into its general alimony statute, § 46b-82, which governs support in dissolution, legal separation, and annulment. The court evaluates the length of the marriage, the causes of the breakdown, the age, health, station, occupation, amount and sources of income, vocational skills, employability, estate, and needs of each party, plus child-custody arrangements. A legally separated spouse can therefore receive periodic alimony just as in a divorce. The key practical difference is duration logic: because the marriage continues, support during separation may interact with benefit-eligibility strategies, and the court can revisit orders if circumstances change. When a separation later converts to divorce under § 46b-65, the existing alimony orders typically carry forward unless a party moves to modify them.