🇺🇸 USA · Family · 10 min read

Uncontested Divorce in Illinois — Joint Simplified Dissolution, Flat Fee Pricing and Cook County Filing

By the American Counsel legal team · Updated October 2026

Illinois updated its divorce law to make agreed cases simpler. This guide to uncontested divorce in Illinois explains residency, the joint simplified option and the documents you need, with flat fee pricing.

Illinois calls divorce a "dissolution of marriage". The only ground is irreconcilable differences. Moreover, there is no mandatory waiting period once you file. Consequently, a complete agreement can move quickly.

Whether you file in Cook County, DuPage, Lake, Will or downstate, the statute is the same. However, local court rules and courthouse practices differ. Therefore, county-specific instructions save time.

Illinois residency and grounds

At least one spouse must have lived in Illinois for 90 days before the court makes its findings. As a result, Illinois has one of the shorter residency periods in the country.

Irreconcilable differences is the only ground. If spouses have lived separate and apart for six months, there is an irrebuttable presumption that the requirement is met. However, separation is not required to file. Consequently, agreed couples can start right away.

Joint simplified dissolution

Illinois offers a joint simplified dissolution for qualifying couples. Generally, the marriage must be short, there must be no children together, and assets and incomes must be below set limits. Furthermore, neither spouse can own real estate, and both must waive maintenance.

Both spouses file together and appear together at a short hearing. In many cases, the judgment is entered the same day. However, if you do not qualify, the regular uncontested process still works well.

The regular uncontested process

One spouse files a Petition for Dissolution of Marriage. The other files an appearance or is served. Then both sign a Marital Settlement Agreement, and the court enters a Judgment for Dissolution of Marriage. Our Marital Settlement Agreement service drafts the agreement to Illinois standards.

Property and maintenance in Illinois

Illinois is an equitable distribution state. Marital property is divided in "just proportions", which is not always equal. Meanwhile, non-marital property, such as pre-marriage assets and inheritances, generally stays with its owner.

Illinois also uses a statutory formula for maintenance in many cases. It applies to combined incomes under a set threshold, with duration based on the length of the marriage. However, spouses can agree to different terms.

Retirement accounts often require a QDRO. Therefore, cover them in your agreement.

Parenting allocation and child support

Illinois no longer uses the word "custody". Instead, it uses "allocation of parental responsibilities", covering decision-making and parenting time. Parents submit a parenting plan, and the court enters an Allocation Judgment.

Our parenting plan service drafts an Illinois-ready plan. Moreover, many counties require parents to complete a parenting education program.

Child support uses an income-shares model based on both parents' net incomes. Our child support calculation worksheet estimates the guideline amount, including shared parenting adjustments.

Flat fee pricing and Illinois courts

Our Uncontested Divorce Documents start at $149 for Illinois. The standard package prepares your petition, settlement and judgment. Meanwhile, the premium package adds attorney review.

Circuit clerk filing fees are separate and vary by county. If needed, you can apply for a fee waiver.

In Chicago, divorce cases are heard by the Domestic Relations Division of the Circuit Court of Cook County at the Richard J. Daley Center. Similarly, DuPage County cases are heard at the Judicial Center in Wheaton. Book an uncontested divorce consultation, or read our flat fee uncontested divorce guide.

Mistakes that delay an Illinois divorce

Illinois agreed divorces usually move quickly. However, a few issues commonly slow them down. First, the 90-day residency must be met before the court makes its findings. Filing a little early is acceptable, but the prove-up cannot happen until residency is satisfied.

Second, the Marital Settlement Agreement must address every asset and debt. For instance, overlooked retirement accounts, vehicles titled in one name, or tax refunds can cause the judge to send the agreement back. Therefore, list everything, even small items.

Third, parenting plans must cover both decision-making and parenting time. In addition, the plan should include holidays, transportation and how future disputes will be handled. Vague plans often lead to requests for revisions.

Financial affidavits

Many Illinois counties require a Financial Affidavit from each spouse, even in agreed cases. Moreover, supporting documents such as tax returns and pay stubs may be required. As a result, gathering these early prevents a continued hearing.

Name changes

If a spouse wants to restore a former name, include it in the judgment. Otherwise, a separate name change case may be needed later. Consequently, decide this before the prove-up hearing.

Finally, confirm whether your county requires a parenting education class and when it must be completed. Cook County and many collar counties have specific deadlines. Therefore, enroll early so the certificate is ready for your court date.

A realistic Illinois timeline

Every case is different, but agreed Illinois divorces often follow a similar rhythm. First, in weeks one and two, you gather financial records and agree the key terms. Then your Marital Settlement Agreement and parenting plan are drafted.

Next, the petition is filed with the circuit clerk. The other spouse files an appearance or accepts service. Meanwhile, both spouses complete financial affidavits and any required parenting class.

The prove-up hearing

After that, the court schedules a short prove-up hearing. Usually, the petitioner testifies briefly about residency, the breakdown of the marriage and the agreement. Moreover, the judge confirms both spouses understand the terms. In many counties, this hearing can take place by video.

Finally, the judge signs the Judgment for Dissolution of Marriage. Consequently, many agreed Illinois cases finish within one to three months, depending on the court's calendar. Cook County can be busier than smaller counties, so plan accordingly.

After the judgment, complete the follow-up tasks. For example, transfer vehicle titles, refinance or quitclaim the home, and submit any QDRO to the plan administrator. As a result, the agreement is fully carried out.

Our Uncontested Divorce services in Illinois

Every service below has a fixed price, is prepared by a qualified attorney and is delivered online — wherever you are in Illinois. Additionally, you can upload evidence, message your attorney and track progress from your secure client dashboard.

Uncontested Divorce Documents in Illinois

Petition, marital settlement agreement, financial disclosures and final decree paperwork for your state (court fees extra).

It includes petition / complaint for dissolution, marital settlement agreement, financial affidavits. Moreover, it is usually ready in 7 working days. Express delivery is also available. As a result, you can act before deadlines pass.

Order Uncontested Divorce Documents — from $149 See what's included →

Uncontested divorce consultation in Illinois

A confidential 30-minute phone or video consultation with a licensed US attorney about an uncontested (agreed) divorce. Get straight answers on your rights, options, risks and likely costs, and a clear plan for your next steps.

It includes 30-minute call with a licensed US attorney — phone, video or WhatsApp, upload documents beforehand so your attorney is prepared, your rights, options, risks and likely costs in plain English. Moreover, it is usually ready in 1 working day. Express delivery is also available. As a result, you can act before deadlines pass.

Order Uncontested divorce consultation — $249 See what's included →

Marital Settlement Agreement (MSA) in Illinois

A marital settlement agreement recording how property, debts, support and parenting are resolved, ready to submit with your divorce.

It includes prepared by our US legal team for your state, based on your questionnaire answers and documents, word and PDF, ready to sign, send or file. Moreover, it is usually ready in 5 working days. Express delivery is also available. As a result, you can act before deadlines pass.

Order Marital Settlement Agreement (MSA) — $700 See what's included →

Parenting Plan / Custody Agreement in Illinois

Custody schedule, holidays, decision-making and relocation terms.

Moreover, it is usually ready in 5 working days. Express delivery is also available. As a result, you can act before deadlines pass.

Order Parenting Plan / Custody Agreement — from $99 See what's included →

Child Support Calculation Worksheet in Illinois

Your state's child support guideline worksheet completed from both parents' income and parenting time.

It includes prepared by our US legal team for your state, based on your questionnaire answers and documents, word and PDF, ready to sign, send or file. Moreover, it is usually ready in 2 working days. Express delivery is also available. As a result, you can act before deadlines pass.

Order Child Support Calculation Worksheet — $200 See what's included →

Qualified Domestic Relations Order (QDRO) in Illinois

A QDRO dividing a 401(k) or pension under your divorce judgment, drafted to the plan administrator's requirements.

It includes prepared by our US legal team for your state, based on your questionnaire answers and documents, word and PDF, ready to sign, send or file. Moreover, it is usually ready in 7 working days. Express delivery is also available. As a result, you can act before deadlines pass.

Order Qualified Domestic Relations Order (QDRO) — $900 See what's included →

Response to Divorce Petition in Illinois

Your formal response to a divorce petition, filed before the deadline, setting out what you agree with and what you contest.

It includes prepared by our US legal team for your state, based on your questionnaire answers and documents, word and PDF, ready to sign, send or file. Moreover, it is usually ready in 3 working days. Express delivery is also available. As a result, you can act before deadlines pass.

Order Response to Divorce Petition — $400 See what's included →

Uncontested Divorce across Illinois — cities we serve

We work with clients in every part of Illinois, entirely online. Therefore, it does not matter whether you live downtown or hours from the nearest courthouse. Your documents follow Illinois law and your county's local practice. Choose your city below to see local details and prices.

More Illinois services

Uncontested divorce consultation in Illinois · Marital Settlement Agreement (MSA) in Illinois · Parenting Plan / Custody Agreement in Illinois · Child Support Calculation Worksheet in Illinois · Qualified Domestic Relations Order (QDRO) in Illinois · Response to Divorce Petition in Illinois. See all legal services in Illinois.

Nearby states

Moving between states, or is the other party elsewhere? We also cover Uncontested Divorce Documents in Indiana, Uncontested Divorce Documents in Wisconsin, Uncontested Divorce Documents in Missouri, Uncontested Divorce Documents in Iowa, Uncontested Divorce Documents in Kentucky. See every location we cover.

Frequently asked questions

How long does an uncontested divorce take in Illinois?

There is no mandatory waiting period. Agreed cases often finish within weeks to a few months, depending on court scheduling.

What is a joint simplified dissolution in Illinois?

A fast process for short marriages with no children together, limited assets and income, no real estate and no maintenance claims. Both spouses file and appear together.

What are the residency requirements for divorce in Illinois?

At least one spouse must have lived in Illinois for 90 days before the court makes its findings.

How much does an uncontested divorce cost in Illinois?

Our attorney-prepared Illinois divorce documents start at $149. Circuit clerk fees are separate.

Do you prepare divorce papers for every Illinois county?

Yes. We prepare uncontested divorce documents for all 102 Illinois counties, including Cook County.

Contact American Counsel

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Related guides

This guide is general information, not legal advice for your situation. Every case is different — speak to a qualified attorney before you act.

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