A Guide to Preparing and Completing the Dreaded “Financial Affidavit” in Illinois Divorce Cases

Annette K. Corrigan • June 26, 2025


In Illinois, anyone going through a divorce is required by law to complete a financial affidavit as part of the legal process. Each spouse completes their own financial affidavit independently, utilizing all financial records and information available to them, electronically, in hard copy, by referencing tangible assets/things, or any other means available. The financial affidavit is critical because it ensures that both parties have a complete picture of all marital and non-marital assets, debt, and income. When it is utilized in court proceedings, it provides the court with a clear and comprehensive picture of the financial standing of the parties, which helps determine key issues such as spousal maintenance, child support, and the division of marital assets and debt. Properly preparing and completing your financial affidavit is essential to ensure accuracy and avoid delays or complications in your case. This guide will walk you through the steps to prepare and complete your financial affidavit effectively.


Understanding the Purpose of the Financial Affidavit


The financial affidavit is a sworn document that details your income, expenses, assets, and debts. Accurately completing the financial affidavit must be taken very seriously. As provided on the first page of the form, it states that, “(i)f you intentionally or recklessly enter inaccurate or misleading information on this form, you may face significant penalties and sanctions, including costs and attorney's fees.” It also provides at page 10 of the financial affidavit, just above the signature line, that upon signing your financial affidavit, you are certifying “that everything in the Financial Affidavit is true and correct. (That you) understand that making a false statement on this form is perjury and has penalties provided by law under 735 ILCS 5/1-109.”  [Among other things, that statute states that, “(a)ny person who makes a false statement, material to the issue or point in question, which he does not believe to be true, in any pleading, affidavit or other document certified by such person in accordance with this Section shall be guilty of a Class 3 felony.”]


In Illinois, divorcing parties are required to use the standardized, Supreme Court approved form entitled “FINANCIAL AFFIDAVIT (FAMILY & DIVORCE CASES). This form is required to be used in all Illinois Circuit Courts. You can go to this link to find the PDF-fillable version of the required financial affidavit form, as well as instructions on completing the form and additional forms that may be utilized to accompany the financial affidavit.


The point is this: errors or omissions can lead to unfavorable outcomes or even legal consequences, so accuracy and thoroughness are paramount in completing the financial affidavit.


Step 1: Gather Necessary Financial Documents


Before filling out the financial affidavit, collect all relevant financial records to ensure your information is accurate and complete. This preparation will save time and reduce stress. Key documents to gather include:


  • Pay stubs for at least the last three months to verify your income.
  • Tax returns (complete copies with all Forms and Schedules for both federal and state) for the past two to three years to provide a clear picture of your earnings.
  • Bank statements (at least three months) for all checking, savings, and investment accounts to document your assets and cash flow.
  • Credit card statements (at least three months) and loan documents to outline your debts.
  • Bills and receipts for monthly expenses, such as rent or mortgage, utilities, insurance, and childcare.
  • Retirement account statements (e.g., 401(k), IRA) to report savings and investments.
  • Property records, including deeds or appraisals, to detail real estate holdings.


Organize these documents in a binder or digital folder for easy reference. Having everything at hand will make it easier to fill out the affidavit accurately.


Step 2: Understand the Affidavit Form


The Illinois financial affidavit form is divided into sections, each focusing on a specific aspect of your finances:


  • Personal Information: Basic details like your name, address, and employment status.
  • Income: All sources of income, including wages, bonuses, self-employment income, investments, and benefits like Social Security.
  • Expenses: Monthly living expenses, such as housing, transportation, food, medical costs, and childcare.
  • Assets: Everything you own, including bank accounts, real estate, vehicles, and personal property.
  • Debts: All liabilities, such as mortgages, car loans, credit card balances, and personal loans.


Reviewing the form in advance helps you understand what information is required and ensures you do not miss any details.


Step 3: Be Honest and Accurate


When completing the financial affidavit, honesty is critical. As stated above, the document is signed under oath, meaning inaccuracies or misrepresentations could result in penalties, including perjury charges. If you are unsure about certain figures, such as irregular income or estimated expenses, provide a reasonable estimate based on your records and note on the financial affidavit that you are providing an estimate. Discrepancies between your financial affidavit and your spouse’s financial affidavit may raise red flags.


For example, when listing expenses, do not inflate or underestimate costs to sway the court’s decision. Instead, use your bank statements and receipts to calculate realistic averages. If your income fluctuates (e.g., due to commissions or freelance work), provide an annual average based on past tax returns or pay stubs and indicate on the financial affidavit that you did so to come up with your entry.


Step 4: Complete the Form Methodically


Work through each section of the affidavit systematically. Be sure to confirm when you are working through each section if the entries call for monthly or yearly amounts (e.g., income and expenses) or a total value (e.g., marital residence). Starting with income, list all sources and provide documentation to back them up. For expenses, categorize them as requested (e.g., housing, utilities, personal care). Be sure to double-check your math. When listing assets and debts, include an accurate description of the asset or debt, include the last 4 digits of any account numbers, and include the balances. If you co-own property or share debts with your spouse, note this clearly on the financial affidavit to avoid confusion.


If a section doesn’t apply to you (e.g., you have no retirement accounts), write “N/A” or “0” rather than leaving it blank. Incomplete forms can lead to misunderstandings.


Step 5: Review and Seek Professional Help if Needed


Once you have completed your financial affidavit, review it carefully for accuracy and completeness. Cross-reference your entries with your financial documents to ensure consistency. If you are unsure about any section or have a complex financial situation (e.g., business ownership or significant investments), it is highly recommended that you consult with your divorce attorney. They can help clarify tricky areas and ensure your financial affidavit aligns with Illinois law.


Step 6: Finalizing and Exchanging Financial Affidavits with Your Spouse


After completing your financial affidavit, it is important that you send it, along with all your corroborating financial documents, to your attorney for their review. They will request further input from you or request dialogue on any of the entries that are unclear, reveal new information to them, or require further elaboration as part of the financial affidavit. Once you and your attorney are satisfied that everything is complete and accurate, you will be required to sign and date the financial affidavit.


Once the financial affidavit packet (made up of the completed, signed, and dated financial affidavit and all corroborating financial documents) is ready, your attorney will coordinate exchanging financial affidavit packets with your spouse’s attorney.  Be sure to keep a copy of your completed financial affidavit packet for your records.


Tips for Success


  • Start Early: Gathering documents and completing the affidavit can take time, so don’t wait until the last minute.
  • Be Thorough: Omitting assets or debts can harm your credibility and affect the court’s rulings.
  • Update as Needed: If your financial situation changes significantly during the divorce process, you may need to file an updated affidavit. Financial affidavits should be updated every three - four months while the divorce litigation is pending.
  • Stay Organized: Keep all documents and a copy of your completed affidavit in a safe place for future reference.


Conclusion


Completing a financial affidavit in an Illinois divorce case may seem daunting, but with careful preparation and attention to detail, you can navigate the process successfully. By gathering the right documents, understanding the form, and being honest and thorough, you are contributing to providing a clear picture (along with your spouse’s financial affidavit) of your finances, both marital and non-marital, thereby paving the way for expeditious and equitable decisions to be made on support and/or division of the marital estate.


Annette Corrigan is one of the highly experienced attorneys making up Lavelle Law’s Family Law Team. If you or someone you care about is facing divorce, reach out today at 847-705-7555, and Annette or one of our other family law attorneys can provide you with a complimentary and confidential consultation, usually the same day you call. 

More News & Resources

Lavelle Law News and Events

How to Run as a Write-In Candidate in Illinois
By Annette K. Corrigan May 21, 2026
Write-in candidates are a unique feature of Illinois elections. They allow qualified individuals to run for office without appearing on the printed ballot. While this option provides flexibility, it comes with strict procedural requirements under the Illinois Election Code.
Important Update for Auto Dealers: FTC Cracks Down on Advertising Practices.
By Sarah J. Reusché May 15, 2026
On March 13, 2026, the Federal Trade Commission sent warning letters to 97 dealerships nationwide concerning their advertising practices. This article addresses the practical implications of the FTC’s stance on dealer advertising and what dealers need to know to remain in compliance.
IRS Announces New Option for Taxpayers to Request More Time After ERC Claim Disallowance
By Timothy M. Hughes May 10, 2026
The Internal Revenue Service recently announced a new, streamlined way for taxpayers to extend the period of time for the IRS and the IRS Independent Office of Appeals to review a taxpayer’s response to a disallowance of an Employee Retention Credit (“ERC”) claim to avoid refund litigation.
High-level insight into sophisticated tax-deferral strategies tailored for business owners
By Kerry M. Lavelle May 4, 2026
Kerry Lavelle explains how business owners can access tax-deferred money, highlighting two selective strategies for key employees or management: Deferred Compensation Plans and Cash Balance Plans. Both allow business owners and key team members to earn money while deferring taxes.
Consolidated Omnibus Budget Reconciliation Act (COBRA)
By James P. Berg April 27, 2026
Losing a job or experiencing a change in employment status can be stressful, particularly when it impacts health insurance coverage. The Consolidated Omnibus Budget Reconciliation Act (“COBRA”) provides a critical safety net by allowing employees and their families to continue employer-sponsored health coverage.
Success Story - Strategic Defense in Probate Property Dispute
By Probate Litigation April 27, 2026
In a contentious probate matter involving a disputed deed to residential property, our client, the administrator of the estate, seeks to recover assets after the deed was recorded by the decedent’s neighbor.
Major life events, shifts in financial status, and changes in the law can affect your estate plan.
By Heather A. McCollum and Gabriel P. Kokoszka April 14, 2026
Major life events, shifts in financial status, and changes in the applicable law can all affect your estate plan, and those changes may require you to make some edits to your documents. So, this spring, dust off your estate plan and consider the following 8 circumstances that signal an update is needed.
IRS Announces Filing Season is Progressing Smoothly
By Timothy M. Hughes April 10, 2026
The Internal Revenue Service recently announced that it is seeing the 2026 filing season have a rise in tax refunds. With the April 15th deadline approaching, the IRS stated that there is a smooth pace at which taxpayers are getting their refunds, with the high use of electronic filing.
Join our session to learn legal tips for successfully launching or growing a business!
By Lavelle Law April 3, 2026
Launching or growing a business? Don’t get tripped up by the legal stuff that can make or break you. Join us for this free seminar on May 13, 2026, and learn key legal tips for entrepreneurs.
Experienced business attorney Kerry Lavelle breaks down the three main avenues for buying a business
By Kerry M. Lavelle March 24, 2026
Thinking about buying a business? There’s more than one way to do it, and choosing the right path can save you time, money, and headaches. In this video, experienced business attorney Kerry Lavelle breaks down the three main avenues for buying a business, along with the pros and cons of each.
More Posts