Fault vs. No-Fault Divorce in Pennsylvania

Pennsylvania allows both fault and no-fault divorce. The choice between them matters strategically, though perhaps less than many people believe. Under no-fault grounds, either spouse can eventually obtain a divorce without the other's consent by proving a one-year separation. Fault divorces can avoid the one-year separation wait but require proving the other spouse's wrongdoing at a hearing. Knowing when fault is worth pursuing, and when it is not, is a real strategic question.

No-Fault Divorce Grounds

Under 23 Pa.C.S. § 3301, Pennsylvania offers two no-fault grounds:

Mutual consent (§ 3301(c)): Both spouses sign affidavits consenting to the divorce after a 90-day waiting period. This is the fastest path if both parties agree.

Irretrievable breakdown / separation (§ 3301(d)): One spouse alleges the marriage is irretrievably broken and the parties have lived separate and apart for one year. No consent from the other spouse is required. The one-year separation must be proven, but "separate and apart" does not require separate residences under 23 Pa.C.S. § 3103.

The one-year separation route under § 3301(d) requires waiting out the separation period, which a fault divorce does not. Both no-fault grounds avoid proving wrongdoing in court. Mutual consent is usually the quickest route, because the court enters the decree on the parties' affidavits without a hearing on the grounds. For most people today, no-fault divorce is the practical choice.

Fault Grounds Under § 3301(a)

Fault grounds include:

1. Desertion for one year: Willful and malicious abandonment without reasonable cause. The deserting spouse must intend to abandon and the abandonment must be continuous for one year.
2. Adultery: Voluntary sexual intercourse with someone other than the spouse. Must be proven by clear and convincing evidence. Circumstantial evidence (time alone, motive, opportunity, behavior) may suffice, but direct proof is stronger.
3. Cruel and barbarous treatment endangering life or health: Treatment that endangers the life or health of the injured and innocent spouse. Physical violence, or conduct placing that spouse in reasonable apprehension of it, is the usual case, but the statute reaches conduct endangering health as well. This is a high bar. Conduct that falls short of it is generally pleaded as indignities instead.
4. Bigamy: Being married to more than one person. Rare in practice.
5. Imprisonment for two or more years: The spouse must have been sentenced to imprisonment for a term of two or more years upon conviction of a crime. It is the length of the sentence imposed, not the time actually served, that controls (so the ground is satisfied even if the spouse is later released on parole).
6. Indignities: Conduct that renders the condition intolerable and burdensome to the innocent spouse, causing loss of self-respect. This is broad and fact-intensive. Examples: chronic infidelity, financial irresponsibility, emotional abuse short of "cruel treatment," substance abuse affecting the marriage.

Proving Fault Grounds

Fault divorces require a hearing at which the plaintiff must prove the ground by the applicable burden of proof under Pennsylvania case law. For most grounds the standard is preponderance of the evidence; Pennsylvania courts have historically required clear and convincing evidence for adultery, and counsel should verify the current standard before pleading that ground. The defendant may contest the allegation, and a hearing officer or judge hears the evidence and makes findings.

For adultery, corroborating evidence helps: text messages, emails, social media, receipts placing the parties together, testimony from witnesses. Circumstantial evidence (lipstick on a shirt, a hotel receipt, location data) can support proof, but judges expect more than pure suspicion.

For indignities, the plaintiff must show a pattern of behavior, not isolated incidents. Courts ask: would a reasonable person find this conduct intolerable? Did the spouse lose self-respect? This is subjective, and disputes often arise.

Effect of Fault on Alimony

This is where fault matters strategically. Under 23 Pa.C.S. § 3701(b)(14), the court shall consider "the marital misconduct of either of the parties during the marriage" in determining alimony. However, marital misconduct from the date of final separation onward shall not be considered, except that the court shall consider abuse.

In plain language: fault that occurred during the marriage can affect alimony, but misbehavior after separation cannot (except for abuse). The court must consider misconduct during the marriage. What the statute does not say is how much weight to give it, and courts vary widely on that point. Misconduct is one of seventeen factors listed in § 3701(b).

Fault matters most in cases involving severe misconduct (long-term adultery, financial infidelity, abandonment) where one party was clearly the "wronged" spouse. In those cases, the at-fault spouse may receive lower alimony or face stronger alimony obligations. But courts will not deny alimony based on fault alone if the receiving spouse has legitimate support needs.

No Effect on Equitable Distribution

This is critical: Fault does NOT affect property division. Under 23 Pa.C.S. § 3502, which governs equitable distribution, marital misconduct is not listed as a factor. Pennsylvania law is clear that property division is based on the statutory factors (length of marriage, contributions, earning capacity, standard of living, etc.), not on who was "wrong" in the marriage.

So even if you prove adultery or indignities, the other spouse still gets their equitable share of marital property. Fault cannot be used to punish the at-fault spouse by awarding them less property.

Effect on APL and Special Relief

Fault is generally not relevant to alimony pendente lite (APL). Once a divorce complaint is filed, APL is decided on financial need and ability to pay alone (income, expenses, and the dependent spouse's ability to fund the litigation), without regard to who caused the breakup. Marital misconduct such as adultery or abandonment can be raised as an "entitlement defense" only to pre-filing spousal support, not to APL, so it does not make APL harder to obtain. See 23 Pa.C.S. Ch. 37. Special relief is different: while provisional remedies are available in both fault and no-fault cases, a court may be more receptive to special relief (e.g., exclusive possession of the marital home) when there is evidence of fault conduct.

Timing and Cost Implications

Fault divorces can proceed faster than a no-fault separation divorce if the plaintiff can prove the ground quickly, because the separation route requires waiting one year. But pursuing a fault ground requires a hearing, testimony, and possible contested litigation. If the defendant disputes the fault ground, the case can become more time-consuming and expensive than waiting for the one-year separation to elapse.

Most divorce clients today choose the no-fault route. It is predictable, does not require proving wrongdoing, and avoids the emotional burden of a contested hearing. Clients pursue fault cases primarily when: (1) the timing is critical (the plaintiff cannot wait a year), (2) there is strong evidence of serious misconduct, or (3) the attorney believes fault will have a meaningful impact on alimony or other outcomes.

Practical Considerations

If you are considering a fault divorce, ask yourself: Is there a strategic advantage to proving fault? Will the other spouse contest it? Can I afford the legal costs of a contested hearing? Is the timing benefit (faster resolution) worth the expense and emotional toll of litigation?

Often the answer is no. The one-year separation and no-fault divorce offers a cleaner, more predictable path. But if your spouse has engaged in severe marital misconduct and you have strong evidence, consulting an attorney about the fault option is worthwhile.

Defending Against Fault Allegations

If you are the defendant in a fault divorce, you do not have to file anything to put the allegations in issue. The averments of the complaint are deemed denied unless you admit them in an answer (Pa.R.C.P. 1920.14(a)). The common-law defenses are also retained as to fault grounds under 23 Pa.C.S. § 3307(a), including condonation, connivance, collusion, recrimination, and provocation, which are abolished only as to the no-fault grounds. In an adultery action, if the defendant alleges and proves, or if it appears in the evidence, that the plaintiff was guilty of like conduct, that is a good defense and a perpetual bar to the action (23 Pa.C.S. § 3307(b)(1)). If the plaintiff cannot prove the ground by the applicable burden of proof (preponderance of the evidence for most grounds; courts have historically required clear and convincing evidence for adultery, though counsel should verify the current standard before relying on that distinction), the court cannot grant the fault divorce. You can also pursue a no-fault divorce yourself by establishing the one-year separation, which may become the faster path.

Legal and factual content on this page was last verified: Sep. 2026. If you are reading this significantly after that date, confirm key provisions with current statute text or contact our office.