What Can Be Used Against You in a Divorce? Evidence, Fault and Privacy Limits

Last reviewed: October 5, 2026. This article is general information, not legal advice. Divorce, evidence and recording laws differ by state, so check your state's rules and speak to a family lawyer before gathering or sharing evidence.

If you're going through a divorce, or think one is coming, it's natural to wonder what your spouse could bring up in court and what you're allowed to use yourself. This guide walks through it calmly and even-handedly, because the same rules apply to both of you.

Short answer: almost anything relevant to the issues the court has to decide can be used in a divorce: your texts and social media, your finances and spending, conduct that affects your children, and, in states where it still matters, marital fault such as adultery. What usually can't be used, and can get the person who gathered it into trouble, is evidence obtained illegally, such as secretly intercepted calls or messages, or accounts accessed without permission.

What the court is actually deciding

Evidence only matters if it's relevant to something the judge decides. In most divorces that means:

• Dividing property and debts. Courts look at what you own and owe, and sometimes at how money was spent.
• Spousal support (alimony). Income, needs, earning capacity and, in some states, fault.
• Custody and parenting time. The child's best interests, which can include each parent's conduct.
• Child support. Mostly income-based.
• Grounds for divorce, in states and cases where fault is pleaded.

Things that feel hurtful but don't bear on these questions often carry little weight.

What can commonly be used against you

Texts, emails and social media

Messages you sent, and posts or photos you shared, are among the most common divorce evidence. They're used to show spending, a new relationship, substance use, threats or a parent's attitude toward co-parenting, and to test whether what someone tells the court is true. Our article on what not to say in divorce court has more on credibility.

Your finances

Expect your income, accounts, debts, business interests and spending to be examined. Hiding income, moving money to relatives, or running up debt can be used against you. Many states let a court take into account marital money wasted or spent for purposes unrelated to the marriage (often called "dissipation"), for example on an affair or gambling, when dividing property. Business owners should also read how an LLC is treated in a divorce.

Conduct that affects your children

In custody decisions, conduct matters when it bears on the child. California's Family Code § 3011, for example, directs courts to consider the child's health, safety and welfare, any history of abuse, and habitual illegal drug use or alcohol misuse by a parent. Badmouthing the other parent to the child, ignoring orders or interfering with parenting time can also count. See our best interest of the child checklist.

Fault, where it still matters

Every state now offers some form of no-fault divorce, but states differ on whether fault still affects the outcome. Three examples:

• California (no-fault). Family Code § 2310 lists the grounds as "irreconcilable differences, which have caused the irremediable breakdown of the marriage" and permanent legal incapacity to make decisions. Fault isn't a ground.
• Texas. Family Code § 6.003 provides that "the court may grant a divorce in favor of one spouse if the other spouse has committed adultery," and § 7.001 lets the court divide the estate in a manner it "deems just and right."
• Virginia. Under Code § 20-107.1(B), permanent support generally can't be awarded to a spouse if the other spouse has a ground for divorce against them under § 20-91(A)(1), which includes adultery, unless denying support would be a "manifest injustice" shown by clear and convincing evidence. Courts must also consider the circumstances that contributed to the breakdown of the marriage.

How evidence is gathered: discovery

Once a case is filed, each side can formally request information. Common tools include:

• Mandatory financial disclosures or sworn financial statements;
• Interrogatories (written questions answered under oath);
• Requests for production of documents, such as bank statements and messages;
• Depositions (questioning under oath before trial);
• Subpoenas to banks, employers and other third parties.

You can object to requests that are irrelevant, overly broad or privileged, but you can't simply refuse. Our guide to discovery in divorce explains the limits.

What privacy laws forbid

Wanting proof is understandable, but some ways of getting it are crimes, and the evidence may be thrown out.

• Intercepting calls or messages. The federal Wiretap Act, 18 U.S.C. § 2511, makes it an offense to intentionally intercept "any wire, oral, or electronic communication." Installing spyware on a spouse's phone to capture their messages is a classic example. Section 2511(2)(d) allows a person who is a party to a communication (or who has a party's prior consent) to record it, unless it's done to commit a criminal or tortious act.
• States that require everyone's consent. Some states are stricter. California Penal Code § 632 prohibits recording a confidential communication "without the consent of all parties," and evidence obtained in violation of the section generally can't be used in court.
• Logging in to someone else's accounts. The federal Stored Communications Act, 18 U.S.C. § 2701, makes it an offense to intentionally access "without authorization a facility through which an electronic communication service is provided" and obtain stored communications. Guessing or using your spouse's password to read their email or messages can raise problems under this law and state computer-crime laws, even if you share a device.
• Tracking devices and hidden cameras are regulated by separate state laws that vary widely.

The safer route is to gather what you lawfully have (your own messages, shared financial records) and let your lawyer use discovery for the rest.

Practical steps to protect yourself

1. Assume everything is discoverable. Write messages as if a judge will read them.
2. Pause social media, or at least stop posting about the case, your spouse or new purchases.
3. Don't delete relevant evidence; ask your lawyer about tightening privacy settings instead.
4. Keep honest, complete financial records and don't move money without agreement or a court order.
5. Keep children out of it. Don't discuss the case with them or use them as messengers.
6. Change your own passwords, and don't access your spouse's accounts.

Sources

• 18 U.S.C. § 2511: Cornell LII
• 18 U.S.C. § 2515: Cornell LII
• 18 U.S.C. § 2701: Cornell LII
• California Penal Code § 632: California Legislative Information
• California Family Code § 2310: California Legislative Information
• California Family Code § 3011: California Legislative Information
• Texas Family Code § 6.003: Texas Statutes
• Texas Family Code § 7.001: Texas Statutes
• Code of Virginia § 20-107.1: Virginia Law