Dating After Divorce in Illinois (2026): Legal Considerations

By Antonio G. Jimenez, Esq. | Florida Bar No. 21022 | Covering Illinois divorce law

Dating after divorce in Illinois is legally permitted the moment your Judgment for Dissolution of Marriage is entered, but dating during the pendency of a divorce case carries measurable legal risk. Under the Illinois Marriage and Dissolution of Marriage Act (IMDMA), 750 ILCS 5/503, marital funds spent on a new romantic partner can be clawed back as dissipation, and 750 ILCS 5/510(c) terminates maintenance when a recipient enters a de facto marriage. This guide explains every legal consideration for dating after divorce Illinois residents face in 2026.

Key Facts: Illinois Divorce at a Glance

As of April 2026. Verify filing fees with your local circuit clerk before filing.

Is It Legal to Date Before Your Illinois Divorce Is Final?

Yes. Dating before your Illinois divorce is finalized is not a crime and does not constitute adultery-based grounds for divorce, because Illinois eliminated all fault grounds on January 1, 2016 under Public Act 99-90. The only ground for dissolution is now irreconcilable differences under 750 ILCS 5/401(a). However, dating during the divorce can still trigger four distinct financial and custody consequences discussed below.

Illinois courts no longer consider marital misconduct when granting a divorce itself, meaning a judge will not deny your petition because you began seeing someone new. The 2016 reforms, codified at 750 ILCS 5/401(a-5), also created an irrebuttable presumption of irreconcilable differences after 6 months of living separate and apart, which dramatically shortened contested timelines. That said, Illinois judges retain broad discretion over property division, maintenance, and parenting time, and a new relationship can influence each of these three areas even though adultery itself is legally irrelevant to the grounds.

Dating and Dissipation of Marital Assets

Dissipation is the single largest financial risk of dating during an Illinois divorce, and courts routinely order repayment of thousands of dollars spent on romantic partners. Under 750 ILCS 5/503(d)(2), dissipation means using marital property for a purpose unrelated to the marriage at a time when the marriage was undergoing an irretrievable breakdown. The spouse alleging dissipation must give written notice no later than 60 days before trial or 30 days after discovery closes, whichever is later.

The Illinois Supreme Court's decision in In re Marriage of O'Neill, 138 Ill. 2d 487 (1990), established that once the non-dissipating spouse makes a prima facie showing, the burden shifts to the accused spouse to prove by clear and specific evidence how the funds were spent. Typical dissipation claims in Illinois dating cases include hotel stays, vacations, jewelry, restaurant meals, and rent paid for a girlfriend or boyfriend's apartment. Courts have ordered reimbursement ranging from $5,000 to over $100,000 in reported Illinois appellate cases. The dissipation clock begins when the marriage has undergone an irretrievable breakdown, not when the petition is filed, and 750 ILCS 5/503(d)(2)(iii) imposes a 5-year lookback limit (3 years from when the claimant knew or should have known of the dissipation).

How Dating Affects Maintenance (Alimony) in Illinois

Dating alone does not terminate maintenance in Illinois, but cohabitation on a resident, continuing conjugal basis does, under 750 ILCS 5/510(c). Maintenance terminates automatically, retroactively to the date cohabitation began, once a court finds the recipient is in a de facto husband-and-wife relationship. Illinois courts use a 6-factor test from In re Marriage of Herrin, 262 Ill. App. 3d 573 (1994), and have terminated awards worth $2,000–$15,000 per month based on this analysis.

The 6 Herrin factors Illinois judges weigh are: (1) length of the relationship; (2) amount of time spent together; (3) nature of activities engaged in; (4) interrelation of personal affairs including finances; (5) whether they vacation together; and (6) whether they spend holidays together. Simply dating someone, even exclusively, does not meet this standard — Illinois appellate courts have repeatedly held that a romantic relationship must resemble a marriage in substance. However, moving in together, combining bank accounts, or presenting as a couple at family events can trigger termination. Maintenance calculated under the statutory guideline in 750 ILCS 5/504(b-1)(1) — 33.33% of the payor's net income minus 25% of the recipient's net income — ends entirely once de facto marriage is proven, and the payor can recover overpayments made after the cohabitation began.

Dating and Parenting Time (Custody) Decisions

Illinois courts allocate parenting time based on the best interests of the child under 750 ILCS 5/602.7, and a parent's dating life becomes relevant only when it measurably harms the child. The 17-factor best interests test includes the mental and physical health of all individuals involved, any prior history of violence, and the willingness of each parent to facilitate a relationship with the other parent. A new dating partner becomes legally relevant when he or she has a criminal record, substance abuse history, or exposes the child to inappropriate conduct.

Illinois judges routinely impose what practitioners call paramour clauses in parenting plans, restricting overnight visits by romantic partners when children are present. These restrictions are discretionary under 750 ILCS 5/603.10, which allows restriction of parenting time only upon a finding that the parent's conduct seriously endangers the child's mental, moral, or physical health. A 2019 Illinois Appellate Court decision in In re Marriage of Engst, 2019 IL App (3d) 180729, upheld a morality clause preventing overnight guests of the opposite sex during parenting time until marriage or 12 months of exclusive dating. Courts will also consider whether a new partner has been subject to an order of protection under the Illinois Domestic Violence Act, 750 ILCS 60/214.

Timing: When Can You Safely Start Dating?

The legally safest time to begin dating in Illinois is after the Judgment for Dissolution of Marriage is entered and the 30-day appeal window under Illinois Supreme Court Rule 303 has closed. Illinois divorces take an average of 6–12 months for uncontested cases and 18–30 months for contested cases, according to data from the Administrative Office of the Illinois Courts. Waiting until after judgment eliminates dissipation exposure entirely and removes most parenting time concerns.

Many Illinois family lawyers advise clients to delay dating until at least three milestones are complete: (1) financial disclosures under Illinois Supreme Court Rule 13.3.1 are served; (2) temporary orders for parenting time and support are in place; and (3) a settlement conference has occurred. This sequencing protects against dissipation claims because marital funds are already locked down through temporary restraining orders under 750 ILCS 5/501(a)(2), which automatically prohibit transferring, encumbering, or disposing of marital property once a petition is filed and served. Dating before these protections are in place exposes you to claims that ordinary romantic spending — dinners, gifts, travel — should be reimbursed to the marital estate.

Timeline Comparison: Dating Risk by Divorce Stage

Social Media, Text Messages, and Evidence

Everything you post on Instagram, Facebook, TikTok, or dating apps like Hinge and Bumble is discoverable in your Illinois divorce, and opposing counsel will subpoena these records. Illinois Supreme Court Rule 214 governs document production and has been interpreted to include social media content, text messages, and dating app communications. A 2015 American Academy of Matrimonial Lawyers survey found that 81% of divorce attorneys reported an increase in the use of social media evidence over the prior five years.

Illinois courts have admitted Facebook messages, Snapchat screenshots, and Venmo transaction histories as evidence of dissipation and cohabitation. The Illinois Rules of Evidence, specifically Rule 901, require only that the proponent produce evidence sufficient to support a finding that the item is what the proponent claims it is — a low bar that makes screenshots readily admissible. Under 735 ILCS 5/8-802, there is no marital privilege that protects communications with a dating partner, and your new partner can be subpoenaed to testify. Practitioners recommend disabling geolocation tagging, removing credit cards from dating apps, and using only non-marital funds for any dating-related expenses.

Prenuptial Considerations for Your Next Relationship

Illinois enforces prenuptial agreements under the Illinois Uniform Premarital Agreement Act, 750 ILCS 10/1 et seq., which took effect January 1, 1990. A valid Illinois prenup must be in writing, signed by both parties, and executed voluntarily without duress or unconscionability. Unlike some states, Illinois does not require independent legal counsel for both parties, but having separate attorneys substantially strengthens enforceability under Section 7 of the Act.

Postnuptial agreements are also enforceable in Illinois under common law principles affirmed in In re Marriage of Tabassum and Younis, 377 Ill. App. 3d 761 (2007), though they receive heightened scrutiny because of the fiduciary duty spouses owe one another. If you remarry after your Illinois divorce, a prenuptial agreement can protect assets you accumulated between marriages, child support obligations from your prior marriage under 750 ILCS 5/505, and any maintenance you receive from your former spouse. Prenups cannot waive child support or predetermine custody, but they can fully waive maintenance and can define what constitutes separate versus marital property for division purposes under 750 ILCS 5/503(a).

Illinois-Specific Practical Tips

Illinois has several county-specific rules that affect dating during divorce, particularly in Cook County, DuPage County, Lake County, and Will County. Cook County Circuit Court requires mediation for contested parenting issues under Cook County Circuit Court Rule 13.4, and mediators frequently ask about new romantic partners during intake. DuPage County follows 18th Judicial Circuit Rule 15.14, which similarly mandates mediation and may trigger guardian ad litem investigation under 750 ILCS 5/506 when a new partner is involved with minor children.

The filing fee in Cook County is approximately $388 as of 2026, while DuPage County charges approximately $334 and Lake County approximately $362. Verify with your local circuit clerk before filing. Illinois uses a unified court system where all domestic relations cases are heard in circuit court, and judges in the Domestic Relations Division typically handle hundreds of cases per year, giving them strong institutional knowledge of dissipation and cohabitation patterns. If you live in one of Illinois's 102 counties outside the major metropolitan areas, expect your case to move faster but with less procedural formality around new-relationship disclosures.

Frequently Asked Questions

Can I legally date someone while my Illinois divorce is pending?

Yes. Illinois is a pure no-fault state since January 1, 2016, and dating during divorce is not illegal under 750 ILCS 5/401. However, spending marital money on a new partner can trigger dissipation claims under 750 ILCS 5/503(d)(2), and new relationships can affect parenting time decisions even though they cannot affect the grounds for divorce itself.

Does adultery affect property division in Illinois?

No, adultery itself does not affect property division in Illinois. Under 750 ILCS 5/503(d), Illinois courts divide marital property in just proportions without regard to marital misconduct. However, if marital funds were spent on an affair, those funds can be recovered as dissipation, with a 3-year statute of limitations from when the claimant knew or should have known of the spending.

Will my maintenance stop if I start dating after my Illinois divorce?

Not from dating alone. Maintenance terminates under 750 ILCS 5/510(c) only when you enter a de facto marriage, evaluated under the 6-factor Herrin test. Courts examine length, time together, activities, financial entanglement, vacations, and holidays. Simple dating, even exclusive, is insufficient, but moving in together or combining finances typically triggers termination retroactively.

Can my ex use my dating app profile against me in Illinois court?

Yes. Dating app profiles, messages, and payment histories are discoverable under Illinois Supreme Court Rule 214 and admissible under Illinois Rule of Evidence 901. Opposing counsel can subpoena Tinder, Hinge, Bumble, and Match records. Screenshots authenticated by the person who captured them routinely come into evidence to prove dissipation, cohabitation, or inappropriate behavior around minor children.

How long should I wait to introduce my new partner to my children in Illinois?

Illinois law does not specify a waiting period, but parenting plans often include paramour clauses restricting introductions for 6–12 months. Under 750 ILCS 5/603.10, courts can restrict parenting time if a new partner seriously endangers the child. Most Illinois family law practitioners recommend waiting until the relationship is stable and the divorce judgment is final.

What is dissipation in Illinois and how much can I be ordered to repay?

Dissipation under 750 ILCS 5/503(d)(2) is spending marital property for a non-marital purpose during irretrievable breakdown. Illinois courts have ordered repayment ranging from $5,000 to over $100,000 in reported cases involving affairs. The lookback period is limited to 3 years from discovery or 5 years from the spending, whichever is shorter.

Can a morality clause prevent my new partner from staying overnight in Illinois?

Yes. Illinois judges routinely include paramour clauses in parenting plans under 750 ILCS 5/602.7, prohibiting overnight guests of a romantic nature when children are present. In In re Marriage of Engst, 2019 IL App (3d) 180729, the Illinois Appellate Court upheld such a clause lasting until marriage or 12 months of exclusive dating, finding it served the children's best interests.

Does Illinois still allow fault-based divorce in 2026?

No. Illinois eliminated all fault grounds effective January 1, 2016 through Public Act 99-90. The only ground for dissolution is irreconcilable differences under 750 ILCS 5/401(a). A 6-month separation creates an irrebuttable presumption that irreconcilable differences exist, meaning contested grounds trials no longer occur in Illinois.

How much does it cost to file for divorce in Illinois?

Filing fees range from approximately $334 to $388 as of April 2026, depending on the county. Cook County charges approximately $388, DuPage County approximately $334, and Lake County approximately $362. Verify with your local circuit clerk. Fee waivers are available under Illinois Supreme Court Rule 298 for petitioners receiving public assistance or below 125% of federal poverty guidelines.

What is the residency requirement for divorce in Illinois?

Under 750 ILCS 5/401(a), at least one spouse must have been a resident of Illinois for 90 days before the court enters the judgment. Note that this is not a filing requirement — you can file on day one and satisfy residency before judgment. Military personnel stationed in Illinois for 90 days also qualify under the same statute.