Cohabitation Rule & Alimony in South Carolina
Table of Contents
Frequently Asked Questions
What is the cohabitation rule for alimony in SC?
Under SC Code § 20-3-150, periodic alimony terminates when the supported spouse resides with another person in a romantic relationship on a continuing, conjugal basis. The paying spouse must prove this in court.
Does dating end alimony in South Carolina?
No. Dating alone — even frequently — does not meet the cohabitation threshold. The law requires a continuing, marriage-like living arrangement.
Does cohabitation affect lump-sum or reimbursement alimony?
No. Only periodic alimony is subject to termination based on cohabitation.
The Cohabitation Rule and Alimony in South Carolina
You’re paying alimony to your ex-spouse, and you’ve just learned they’ve moved in with their new partner. Does that mean alimony stops? Or you’re receiving alimony and you’re thinking about moving in with someone — will you lose your support?
These are among the most common questions we hear at Warner Law. South Carolina law does provide a path to terminate periodic alimony when the recipient begins cohabitating — but the rules are more specific than most people realize.
In this guide — part of our complete guide to alimony in South Carolina — we explain exactly how the cohabitation rule works, what counts as cohabitation, and what steps you need to take.
Key Takeaway: Under SC Code § 20-3-150, periodic alimony can be terminated if the recipient cohabitates with a romantic partner on a continuing, conjugal basis — but the paying spouse must prove it in court. It’s not automatic.
What Does the Law Say?
South Carolina’s cohabitation statute, SC Code § 20-3-150, provides that periodic alimony shall terminate upon the “continued cohabitation” of the supported spouse with another person in a romantic relationship on a “continuing, conjugal basis.”
Let’s break down the key terms:
“Continued cohabitation”: This means residing together — not just visiting or dating. The living arrangement must be ongoing and not just temporary.
“Romantic relationship”: The relationship must be romantic in nature. Living with a family member, a roommate for financial reasons, or a platonic friend does not qualify.
“Continuing, conjugal basis”: This is the critical phrase. “Conjugal” implies a marriage-like relationship — sharing a home, sharing expenses, intermingling lives, and functioning as a domestic partnership.
What Counts as Cohabitation?
Courts look at the totality of the circumstances when determining whether cohabitation exists. Factors that South Carolina courts have considered include:
Evidence that supports cohabitation: – Spending most or all nights at the same residence – Sharing household expenses (rent, utilities, groceries) – Sharing financial accounts or commingling finances – Jointly purchasing property or signing a lease together – The partner’s belongings being moved into the home – Presenting themselves as a couple publicly – The partner receiving mail at the recipient’s address
Evidence that typically does NOT prove cohabitation: – Casual dating, even if frequent – Occasional overnight stays (a few times a month) – Going on vacations together – The partner maintaining their own separate residence – Sharing meals or spending daytime hours together
The distinction can be subtle, and every case turns on its specific facts. South Carolina courts are careful not to penalize alimony recipients simply for having a social life or a romantic relationship — the threshold is a marriage-like living arrangement.
Which Types of Alimony Are Affected?
The cohabitation rule applies only to periodic alimony. If you’re paying or receiving one of the other types of alimony in SC, here’s how cohabitation affects each:
| Type | Affected by Cohabitation? |
|---|---|
| Periodic alimony | ✅ Yes — can be terminated |
| Lump-sum alimony | ❌ No |
| Rehabilitative alimony | ⚠️ Possibly, depending on terms |
| Reimbursement alimony | ❌ No |
This is one reason why the type of alimony awarded during your divorce matters so much. If you’re concerned about the cohabitation rule — on either side — discuss this with your attorney during negotiations.
How to Prove Cohabitation in Court
If you’re the paying spouse and you believe your ex is cohabitating, you must file a petition with the family court and present evidence. The burden of proof is on you. Here’s what the process typically involves:
Step 1: Gather Evidence
Before filing, compile evidence that demonstrates the cohabitation is continuing, conjugal, and residential. Useful evidence can include:
Photographs or video of the partner’s car regularly parked at the residence
Social media posts showing the couple living together
Testimony from neighbors, friends, or family members
Utility bills, mail, or packages addressed to the partner at the recipient’s home
Shared financial account records
Surveillance (conducted legally and ethically)
Step 2: File a Petition
Your attorney will file a petition to terminate alimony based on cohabitation under SC Code § 20-3-150. This is filed with the South Carolina Family Court. Learn more about the modification and termination process in our guide to modifying or terminating alimony.
Step 3: Present Your Case
At the hearing, you’ll need to present enough evidence to convince the judge that the relationship meets the “continuing, conjugal” threshold. The recipient will have an opportunity to challenge the evidence and present their own case.
Step 4: Court Decision
If the court finds that cohabitation exists, it will terminate periodic alimony. If the evidence falls short, the original alimony order remains in effect.
What If You’re Receiving Alimony and Considering Moving In Together?
If you’re receiving periodic alimony, you should be aware that moving in with a romantic partner puts your support at risk. Before making that decision:
Understand the financial impact. Calculate how the loss of alimony would affect your budget.
Consider the timing. If you’re close to becoming financially self-sufficient, the risk may be manageable.
Talk to an attorney. Before making any major changes to your living arrangement, consult with a family law attorney to understand your exposure.
Consider negotiating alternative support. In some cases, it may be possible to negotiate a lump-sum buyout of your remaining alimony in exchange for freedom to cohabitate without risk.
What About Same-Sex Relationships?
The cohabitation statute applies equally to all romantic relationships, regardless of gender. If the supported spouse cohabitates with a partner of any gender in a continuing, conjugal relationship, the paying spouse can petition to terminate periodic alimony.
Protect Your Rights — Whether You Pay or Receive Alimony
The cohabitation rule is one of the most contested issues in South Carolina alimony law. Whether you’re paying alimony and suspect your ex is cohabitating, or you’re receiving support and want to understand your rights, Warner Law can help.
Attorney Carrie Warner has handled numerous cohabitation cases in Columbia, Richland County, and Lexington County Family Courts. We know what evidence is needed and how to present it effectively.
Schedule a free consultation to discuss your situation with an experienced South Carolina family law attorney.
This article is for informational purposes only and does not constitute legal advice. Every family law case is unique. Contact Warner Law to discuss your specific situation.
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My late father, Jan Warner, was an accomplished and widely known family law attorney and nationally syndicated author in South Carolina, so this area of law runs in my blood. It is all I have ever known, and I cannot imagine doing anything else.