Illinois Divorce Financial Affidavit: What You Need to Know

Every Illinois divorce requires both spouses to exchange sworn financial disclosures. The Financial Affidavit is the central document — a comprehensive, under-oath accounting of your income, expenses, assets, and debts. Getting it wrong doesn't just weaken your negotiating position; filing an inaccurate affidavit can constitute perjury and lead to sanctions.

What the Financial Affidavit Covers

The statewide standardized Financial Affidavit (Family & Divorce Cases) requires detailed information across four categories:

Income: All sources — employment wages, self-employment income, bonuses, commissions, investment income, rental income, social security, pensions, and any other recurring payments. You must report gross and net income with supporting documentation.

Expenses: Monthly living costs broken down by category — housing (mortgage/rent, property taxes, insurance, utilities), transportation, food, healthcare, insurance premiums, children's expenses, personal expenses, and debt payments.

Assets: Every asset you own or have an interest in — real estate, vehicles, bank accounts, investment accounts, retirement accounts, business interests, personal property of significant value, and any other assets.

Debts: All liabilities — mortgages, auto loans, credit cards, student loans, medical debt, personal loans, and any amounts owed.

The June 2025 Updates

The standardized Financial Affidavit was updated in June 2025 with more detailed disclosure requirements. The key changes:

• Business income now requires more granular reporting, including separate line items for business revenue, cost of goods sold, operating expenses, and owner's draws
• Investment accounts must now list each account individually with the institution name, account type, and current balance
• Cash equivalents (money market accounts, CDs, cryptocurrency) have dedicated disclosure fields
• Digital assets including cryptocurrency holdings are now explicitly required

If your attorney or the court provides an older version of the form, request the current one — using outdated forms can delay your case.

Required Supporting Documents

The affidavit itself is just the summary. You must also provide:

• Two years of federal and state tax returns (including all schedules and W-2s)
• Three months of bank statements for every account (joint and individual)
• Recent pay stubs (typically the most recent 3 months)
• Retirement account statements (most recent quarterly statements for 401(k)s, IRAs, pension benefit statements)
• Real estate documents (deeds, mortgage statements, property tax bills)
• Insurance policies (life, health, auto, homeowners)
• Business records (if self-employed: profit/loss statements, balance sheets, business tax returns)

Common Mistakes That Cause Problems

Underreporting income. Forgetting to include bonuses, commissions, rental income, or side-job earnings. The other spouse's attorney will compare your affidavit to your tax returns — inconsistencies get flagged immediately.

Estimating instead of documenting. "I think my car is worth about $15,000" carries far less weight than a Kelley Blue Book printout showing the actual value. Use real numbers backed by documents.

Omitting assets. Whether intentional or accidental, leaving assets off the affidavit is the fastest way to lose credibility. If the court discovers undisclosed accounts or property, sanctions can include awarding the hidden asset entirely to the other spouse.

Ignoring digital assets. Cryptocurrency, online payment accounts (PayPal, Venmo balances), digital storefronts, and domain names are all assets that must be disclosed.

How to Prepare Efficiently

The financial affidavit is overwhelming when you start from scratch. Working through it systematically — category by category, with documents gathered in advance — transforms a stressful task into a manageable one.

Start with a complete inventory of every account, asset, and debt. For each item, pull the most recent statement and note the current balance. Then work through the affidavit sections one at a time, using your inventory as the source.

The Illinois Divorce Financial Split Guide provides a structured inventory worksheet designed to map directly to the Financial Affidavit's categories — so when you sit down to complete the court form, every number is already calculated and documented.

Timeline and Deadlines

Illinois requires financial disclosures to be exchanged early in the case. The specific deadline depends on the county's local rules, but most circuits require exchange within 30-60 days of the respondent's appearance. Missing this deadline can result in court sanctions and delays to your case.

Don't wait until the deadline approaches. Start gathering documents and building your financial inventory as soon as divorce becomes a realistic possibility.

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