Last updated 2026-07-11
TL;DR
In most states, you write one sentence: 'The marriage has suffered irreconcilable differences, and there is no reasonable likelihood the marriage can be preserved.' No story. No blame. No specific events. Courts do not want elaboration. The phrase is defined in your state's no-fault statute, and that definition does all the work for you.
What does 'irreconcilable differences' actually mean legally?
Irreconcilable differences is the standard no-fault ground for divorce in most U.S. states. It means the marriage has broken down in a way that cannot be repaired, and neither spouse has to prove the other did anything wrong to get there.
The phrase comes straight from state statute. California uses it in Family Code Section 2310, which allows dissolution on the ground of 'irreconcilable differences, which have caused the irremediable breakdown of the marriage.' [1] That statutory language is what courts look at, not whatever you write in the body of the petition.
Roughly 17 states and Washington D.C. use the exact phrase 'irreconcilable differences.' Others use 'irretrievable breakdown,' 'incompatibility,' or plain 'no-fault.' The legal effect is the same: you are telling the court the marriage is over and you are not blaming either spouse. [2]
Here is why this shapes what you write. The court is not asking you to prove anything. It is asking you to check a box and, on some forms, write a short statement. That statement needs to match the statutory language. It does not need to tell your story.
How much do you actually need to write in the reason section?
One sentence. Sometimes less.
Most state petition forms put a checkbox next to 'irreconcilable differences' or 'irretrievable breakdown,' and your job is to check it. Where a written statement is required, one clear sentence that mirrors the statute is exactly what judges expect. Writing more does not help you, and it can hurt. Describe specific incidents and a clerk may flag the form as fault-based, or a judge may ask questions during an uncontested hearing that you never needed to answer.
The fill-in-the-blank language that works in nearly every no-fault state is this: 'There are irreconcilable differences between the parties, and the marriage has suffered an irremediable breakdown with no reasonable possibility of reconciliation.' [3]
Some states are simpler still. Texas uses 'insupportability' under Texas Family Code Section 6.001, and the petition language reads: 'The marriage has become insupportable because of discord or conflict of personalities that destroys the legitimate ends of the marital relationship and prevents any reasonable expectation of reconciliation.' [4] Texas puts that exact phrase in its official forms. You copy it word for word.
Shorter is better. One sentence, statutory language, done.
What specific words should you write, state by state?
Use your state court's own form language. That is the safest route. Most state judiciaries publish fillable petition forms with the reason section already written, and you just confirm the ground applies. Below are the exact or near-exact phrases common no-fault states use.
| State | Statutory ground | Language to use in petition |
|---|---|---|
| California | Irreconcilable differences (Fam. Code § 2310) | 'There are irreconcilable differences that have caused the irremediable breakdown of the marriage.' |
| Texas | Insupportability (Fam. Code § 6.001) | 'The marriage has become insupportable because of discord or conflict of personalities.' |
| Florida | Irretrievably broken (§ 61.052) | 'The marriage is irretrievably broken.' |
| New York | Irretrievable breakdown (DRL § 170(7)) | 'The relationship between husband and wife has broken down irretrievably for a period of at least six months.' |
| Illinois | Irreconcilable differences (750 ILCS 5/401) | 'Irreconcilable differences have caused the irretrievable breakdown of the marriage.' |
| Washington | Irretrievable breakdown (RCW 26.09.030) | 'The marriage is irretrievably broken.' |
| Arizona | Irretrievable breakdown (ARS § 25-312) | 'The marriage of the parties is irretrievably broken.' |
| Colorado | Irretrievable breakdown (CRS § 14-10-106) | 'The marriage is irretrievably broken.' |
For states not on this list, go to your court's self-help center or forms page. Almost every state posts fillable PDF petitions with the reason section pre-populated. [5]
If your form has a blank line rather than a checkbox, copy the statutory language from the table above word for word. Do not paraphrase. Do not add adjectives.
Should you explain why the marriage failed?
No. That is the whole point of no-fault divorce.
Irreconcilable differences exists so neither spouse has to air grievances in a legal document. Courts do not want the backstory. The petition is no place to explain infidelity, money fights, communication failures, or any other reason the marriage ended. Those details belong nowhere in a no-fault petition.
Writing them in creates real risks. Allege specific conduct and a court may reclassify your ground as fault-based, which can change proceedings in states that still recognize fault grounds. In an uncontested divorce, the other spouse reads the petition before signing any agreement, and inflammatory language can turn a calm process into a contested one. Court filings are public records in most states, so anything you write becomes accessible to anyone who asks.
Feel the urge to write more? Ask one question: does the court need this to grant the divorce? When you file on irreconcilable differences, the answer is always no. Resist the urge.
What if your spouse disagrees that there are irreconcilable differences?
This is rarer than people expect, but it happens. In most states, one spouse's assertion of irreconcilable differences is enough. The other spouse cannot veto the divorce by disagreeing.
California Family Code Section 2335 drives the point home by prohibiting evidence of specific acts of misconduct in dissolution proceedings, which tells you the ground is not something to be litigated. [1] Florida's statute says the court 'shall' grant the dissolution when it finds the marriage is irretrievably broken, and if a spouse denies that, the court can order counseling for up to three months before reconsidering. [6] That is the worst case in most states: a short delay, not a denial.
A spouse contesting the divorce itself, rather than just the reason, is a different situation. You may no longer have an uncontested divorce, and advice from a divorce lawyer becomes worth the cost. Property and debt disputes in an otherwise no-fault case get resolved in the settlement agreement, not in the reason section of the petition.
For a genuinely uncontested divorce where both spouses agree the marriage is over, this section is a non-issue. You both sign, you both acknowledge the ground, the court moves on.
What does a completed reason section look like on real forms?
Real forms teach this better than any abstract explanation. Here is what the reason section looks like on two of the most commonly used state forms.
California's FL-100 (Petition for Dissolution) has a checkbox at item 5 that reads: 'Irreconcilable differences. (Fam. Code, § 2310(a)).' You check the box. There is no blank to fill in. [7]
Florida's Form 12.901(b)(1) has a section that states: 'The marriage between the parties is irretrievably broken.' That sentence is pre-printed. You do not write it. You confirm it applies by filing the form. [8]
Texas's petition for divorce, available through Texas Law Help, contains the insupportability language pre-written in the petition body. Again, you do not compose it from scratch. [4]
When a form has a blank line instead of pre-written language, treat that blank as a one-sentence field. Write the statutory phrase for your state. If the blank is labeled 'Reason for divorce' or 'Ground for dissolution,' that statutory phrase is your complete answer.
The divorce papers are usually more straightforward than people expect. The reason section is the least complicated part of the whole packet.
Are there states where you need more detail or a different ground?
A few states have quirks worth knowing.
New York added pure no-fault divorce in 2010 under Domestic Relations Law Section 170(7). The catch is the six-month language: you must assert the breakdown has lasted at least six months. [9] Still one sentence, but it needs the time element: 'The relationship between the parties has broken down irretrievably for a period of at least six months.'
North Carolina requires a one-year physical separation before filing, and the ground is simply separation for one year. [10] It does not use irreconcilable differences at all. If you are filing in North Carolina, you state the date of separation and confirm the year has passed.
South Carolina also requires a one-year separation for no-fault divorce. Louisiana allows living separate and apart as its no-fault ground, with 180-day or 365-day separation periods depending on whether children are involved.
States that still permit fault grounds alongside no-fault almost always let you choose no-fault even if fault exists. No-fault keeps the petition simpler and the process faster. There is rarely a strategic reason to allege fault in an uncontested case.
Unsure which ground applies in your state? Your state court's self-help center is the right first stop. Many have online tools that walk you through it. [5]
Does what you write in the petition affect property, custody, or support?
Not in a no-fault state. The reason section has no bearing on how assets get divided, how custody is structured, or whether alimony is awarded.
This is a real point of confusion for people filing without an attorney. Some worry that admitting 'irreconcilable differences' instead of naming the other spouse's bad behavior will cost them something in the settlement. It does not. Property division in no-fault states runs on equitable distribution or community property rules that are completely independent of who caused the marriage to fail. [2]
Alimony turns on factors like length of marriage, income disparity, and earning capacity, not on which spouse is at fault in a no-fault state. A handful of fault states do let fault affect alimony, but even there, what you write in the petition reason line is not the operative fact. The conduct itself would have to be proven separately.
For custody, courts apply the best interest of the child standard, which has nothing to do with the ground for divorce. If you have children, spend your energy on the parenting plan, not the petition language. A child support calculator gets you realistic numbers before you finalize any agreement.
The reason section is procedural. It opens the door. Everything that actually matters in your divorce lives in the settlement agreement.
Can you file an uncontested divorce with irreconcilable differences without a lawyer?
Yes, and a lot of people do.
Uncontested no-fault divorce is the case type the self-help court system was built for. When both spouses agree on all terms, the paperwork is the obstacle, not the legal complexity. The petition reason section, as you now know, is one sentence copied from a statute.
Filing fees are the unavoidable cost. They run from about $80 in Wyoming to over $400 in California, with most states between $150 and $300. [11] Some courts waive fees for low-income filers through fee waiver forms.
The full packet usually includes the petition, a summons, a financial disclosure (required in most states), a marital settlement agreement, and a proposed final judgment. If you have children, add a parenting plan and sometimes a child support worksheet.
For people who want those forms prepared correctly without hiring a divorce attorney, DivorceClear's $149 document packet generates a state-specific, court-ready set based on your answers. The petition reason language is handled automatically from your state's statute, so you do not research it yourself.
One thing DIY filers should watch is the financial disclosure requirement. In California, both spouses must serve preliminary declarations of disclosure under Family Code Section 2100, and courts take that seriously. [1] Other states have similar rules. Missing that step is one of the more common reasons uncontested divorces get kicked back.
What mistakes do people make in this section?
Four patterns show up again and again in rejected or flagged petitions.
First, writing too much. People write paragraphs about affairs, financial betrayal, emotional abuse. A clerk sees that, and it stops looking like a no-fault petition. Best case, you refile. Worse case, the other spouse reads language that sets off a fight.
Second, using the wrong statutory phrase. 'Irreconcilable differences' is not legally operative in Florida or Washington, which use 'irretrievably broken.' The difference sounds minor. It matters, because clerks match petition language to the state code.
Third, leaving the section blank. Some people check the no-fault box but leave the written reason line empty when the form requires an entry. The form comes back.
Fourth, copying language from another state's form found online. This happens constantly given how many generic divorce form sites exist. Texas insupportability language filed in an Illinois court will not blow up your case, but it creates confusion and sometimes forces a corrected filing.
The fix for all four is the same: use your state court's own forms and follow the instructions on the form exactly. Pre-written language, leave it alone. A blank, fill it with your state's statutory phrase and nothing else.
Where can you find the official forms for your state?
State court self-help centers are the most reliable source. Every state has one, and most are online. The National Center for State Courts maintains a directory of state court websites where self-help resources are posted. [12]
A few direct sources for high-traffic states:
California: the California Courts self-help center at courts.ca.gov posts all Judicial Council forms, including FL-100. [7]
Florida: Florida Courts posts all family law forms at flcourts.gov, including Form 12.901(b)(1). [8]
Texas: Texas Law Help (texaslawhelp.org) is the state-supported legal aid resource and posts fillable petition forms. [4]
New York: the New York State Unified Court System at nycourts.gov posts the Uncontested Divorce Packet with all required forms. [9]
For other states, search '[your state] courts self-help divorce forms' and look for the .gov result. Skip third-party form sites that charge per form. You can get the same documents free from the court.
Want the wider picture of how common these filings are before you start? The divorce rate in America data gives useful context on how routine uncontested no-fault filings have become, though it is not required reading before you file.
This article is general legal information, not legal advice. If your situation involves disputed assets, children with special circumstances, or an uncooperative spouse, consulting a licensed attorney in your state is the right move.
Frequently asked questions
Do I have to explain why our marriage failed in the divorce petition?
No. That is the whole purpose of no-fault divorce. When you file on irreconcilable differences or irretrievable breakdown, you are legally required to write nothing more than the statutory phrase for your state. Courts do not want, expect, or benefit from a detailed explanation of what went wrong in the marriage. One sentence is the complete answer.
Can I use 'irreconcilable differences' in every state?
No, not every state uses that exact phrase. California and Illinois use it directly. Florida and Washington use 'irretrievably broken.' Texas uses 'insupportability.' New York uses 'irretrievable breakdown.' North Carolina does not use any of those terms; its no-fault ground is a one-year separation. Always check your state's specific statute or official court form before you write anything.
What if I also have fault grounds like adultery or cruelty, should I include them?
Almost always no, especially in an uncontested case. Filing on fault grounds complicates the process, requires you to prove the conduct, and can inflame the other spouse. In no-fault states, the fault has no effect on property division or custody. Choose the no-fault ground, keep the petition clean, and use the settlement agreement to handle everything that actually matters financially.
How long does my statement of irreconcilable differences need to be?
One sentence, and sometimes just a checkbox. Courts do not require length. They require that the stated ground matches the statutory definition. The California FL-100 form, for example, handles the entire reason section with a single checkbox next to the statutory citation. If your form has a blank line, fill it with one sentence of statutory language and stop there.
Will what I write in the reason section affect how property gets divided?
No. In no-fault states, property division follows community property or equitable distribution rules that are entirely separate from the ground for divorce. The petition reason line has zero legal effect on who gets the house, the retirement account, or the car. Those outcomes are determined by your settlement agreement and your state's property laws.
What is the difference between 'irreconcilable differences' and 'irretrievable breakdown'?
They are legally equivalent no-fault grounds that different states chose to word differently. Both mean the marriage has permanently broken down with no realistic chance of recovery, and neither requires either spouse to prove wrongdoing. The practical difference is zero. The only thing that matters is using the phrase your state's statute and forms actually use.
Can my spouse contest the divorce by claiming there are no irreconcilable differences?
In most states, one spouse's sworn assertion that the marriage is irretrievably broken is legally sufficient. The other spouse cannot block the divorce simply by denying it. In some states like Florida, the court may order a short counseling period if the other spouse disagrees, but that is typically a delay of up to three months, not a denial of the divorce itself.
Does the reason I give for divorce affect alimony?
Generally no, in no-fault states. Alimony decisions are based on factors like length of marriage, each spouse's income and earning capacity, and financial need. The petition ground does not factor in. A small number of fault states do allow fault to affect alimony, but even then it is the proven conduct, not the petition language, that matters.
Do both spouses need to agree on the reason for divorce in an uncontested case?
Yes and no. In an uncontested divorce, both spouses cooperate, so the filing spouse states irreconcilable differences and the other spouse does not contest it. The responding spouse does not have to separately assert the same ground. They simply acknowledge the petition, usually by signing a waiver of service or joining the petition, which implies agreement that the divorce should proceed.
Is there a minimum time you have to be separated before filing on irreconcilable differences?
It depends on the state. Most states have no separation requirement and you can file immediately. North Carolina requires one year of separation. South Carolina also requires one year. Louisiana requires 180 days for couples without minor children and 365 days for those with minor children. New York requires that the breakdown has existed for at least six months, though no physical separation is required.
What if the court's form has no blank and just a checkbox for irreconcilable differences?
Check the box and move on. Many state forms, including California's FL-100, handle the entire reason section that way. You do not need to write anything additional. The pre-printed text next to the checkbox and the statutory citation built into the form are legally complete. Adding a written statement when the form only asks for a checkmark is unnecessary and looks odd to clerks.
Can I file for divorce myself without a lawyer using irreconcilable differences as the ground?
Yes. No-fault uncontested divorce is the most DIY-friendly category of family law case. The reason section is a single sentence or checkbox. The real work is in the settlement agreement, financial disclosures, and parenting plan if you have children. State court self-help centers provide free forms and instructions. Filing fees range from roughly $80 to over $400 depending on your state.
What happens after I file the petition stating irreconcilable differences?
The court clerk stamps your petition, assigns a case number, and you serve the other spouse with the petition and summons. In an uncontested case, your spouse signs a waiver or response agreeing to the divorce. You then file your settlement agreement and financial disclosures. A judge reviews everything and signs the final decree, sometimes without requiring either of you to appear in court at all.
Sources
- California Legislative Information, Family Code Section 2310 and 2335: California grants dissolution on irreconcilable differences causing irremediable breakdown; Section 2335 prohibits evidence of specific acts of misconduct in dissolution proceedings
- Cornell Law School Legal Information Institute, No-Fault Divorce overview: About 17 states and D.C. use the phrase irreconcilable differences; others use irretrievable breakdown or incompatibility with identical legal effect; property division is separate from fault
- National Center for State Courts, no-fault divorce basics: Standard no-fault petition language mirrors the statutory definition of irremediable breakdown with no reasonable possibility of reconciliation
- Texas Statutes, Family Code Section 6.001, Insupportability; forms via Texas Law Help: Texas grounds for divorce include insupportability due to discord or conflict of personalities preventing any reasonable expectation of reconciliation; Texas Law Help posts fillable petitions
- National Center for State Courts, state court self-help directory: Almost every state posts fillable PDF divorce petitions with the reason section pre-populated through its self-help center
- Florida Statutes, Section 61.052, Dissolution of Marriage: Florida court shall grant dissolution when marriage is irretrievably broken; if spouse denies it, court may order counseling for up to three months
- California Courts Self-Help Center, Form FL-100 Petition for Dissolution: California FL-100 handles the reason for divorce with a checkbox next to the irreconcilable differences statutory citation; no narrative is required
- Florida Courts, Family Law Form 12.901(b)(1) Petition for Dissolution of Marriage: Florida's official petition form contains the pre-printed language that the marriage is irretrievably broken; filers confirm rather than compose it
- New York State Unified Court System, Uncontested Divorce Packet and DRL Section 170(7): New York no-fault ground requires stating the relationship has broken down irretrievably for at least six months; added by DRL Section 170(7) effective 2010
- North Carolina General Statutes, Section 50-6, Divorce after Separation: North Carolina requires one year of physical separation as the no-fault ground for divorce; does not use irreconcilable differences terminology
- National Center for State Courts, Court Statistics Project: Divorce filing fees range from about $80 in Wyoming to over $400 in California, with most states between $150 and $300
- National Center for State Courts, directory of state court websites: The National Center for State Courts maintains a directory of state court websites where self-help resources and forms are posted