Illinois Divorce Financial Planning Checklist: 15 Steps Before You Settle

Signing a marital settlement agreement without a complete financial picture is the single most expensive mistake in Illinois divorce. Once the judgment is entered, you generally can't reopen property division — even if you later discover assets you didn't know about.

This checklist walks through the 15 financial tasks to complete before you agree to any settlement terms.

Phase 1: Gather Your Financial Baseline

1. Pull your credit reports. Request free reports from all three bureaus (Equifax, Experian, TransUnion) at annualcreditreport.com. Your credit report reveals joint accounts, authorized user accounts, and debts you may not know about — a common discovery when one spouse managed all finances.

2. Collect 3 years of tax returns. Federal and Illinois state returns, including all schedules and W-2s. Tax returns are the most comprehensive snapshot of household income, investment gains, business income (Schedule C), rental income (Schedule E), and retirement contributions. If your spouse filed separately or you suspect unreported income, request IRS transcripts directly.

3. Inventory all bank accounts. List every checking, savings, money market, and CD account — joint and individual. Note the institution, account number, current balance, and whether the account existed before the marriage. Under 750 ILCS 5/503, accounts opened during the marriage are presumptively marital regardless of whose name is on them.

4. Document all investment and brokerage accounts. This includes taxable brokerage accounts, stock plans, ESPPs, stock options, RSUs, and any cryptocurrency holdings. Get the most recent statements and note the cost basis — that determines the tax hit when assets are liquidated or transferred.

5. Get retirement account statements. 401(k), 403(b), IRA, Roth IRA, pension benefit estimates, deferred compensation plans. For defined benefit pensions, request a current benefit estimate from the plan administrator. Public employees (teachers via TRS, state workers via SERS, municipal workers via IMRF) need to understand that their pensions require a QILDRO rather than a QDRO for division.

Phase 2: Build Your Marital Balance Sheet

6. Classify every asset as marital or separate. Illinois presumes all property acquired during the marriage is marital. To claim an asset is separate (non-marital), you need clear and convincing evidence — typically a paper trail showing the asset was owned before marriage, inherited, or received as a gift. Commingled assets (separate funds deposited into a joint account used for family expenses) are typically transmuted to marital property.

7. Value the major assets. Real estate needs a formal appraisal or at minimum a comparative market analysis. Vehicles can be valued through Kelley Blue Book. Business interests require a professional valuation. Collectibles, antiques, and artwork may need specialist appraisals. Use fair market value — what a willing buyer would pay a willing seller.

8. List all debts and liabilities. Mortgage balances, home equity lines, credit card balances, auto loans, student loans, medical debt, personal loans, and tax obligations. Note whether each debt is joint or individual, and when it was incurred. Under Illinois law, debts incurred during the marriage are presumptively marital even if only one spouse's name is on the account.

9. Calculate your marital balance sheet. Total marital assets minus total marital debts equals the marital estate. This is the number you're dividing. Without it, you're negotiating percentages of an unknown total — which is how people agree to settlements that look fair on paper but leave tens of thousands on the table.

Phase 3: Project Your Post-Divorce Financial Reality

10. Build a post-divorce monthly budget. Your living expenses will change. You'll likely go from one household to two, which means separate rent or mortgage, utilities, groceries, and insurance. Be specific: actual utility bills, actual insurance premiums, actual grocery spending — not estimates.

11. Run the maintenance calculation. If combined gross income is under $500,000, Illinois uses a formula: 33.33% of the higher earner's net income minus 25% of the lower earner's net income, capped at 40% of combined net income. Duration depends on the length of the marriage (the multiplier ranges from 0.20 for marriages under 5 years to permanent for marriages of 20+ years). Run this calculation for your specific numbers.

12. Factor in health insurance costs. If you're on your spouse's employer plan, you'll lose coverage at divorce. COBRA continuation costs $600 to $1,800 per month. Marketplace plans with subsidies may be cheaper. Factor this into your post-divorce budget — it's one of the most commonly overlooked expenses.

13. Model the tax impact of asset transfers. A $200,000 401(k) and a $200,000 brokerage account are not equivalent. The 401(k) is entirely pre-tax — you'll owe income tax on every dollar withdrawn. The brokerage account may have $150,000 in cost basis (already taxed) and only $50,000 in gains. Equalize on an after-tax basis, not gross value.

Phase 4: Prepare for Negotiation

14. Identify your priorities. What matters most — keeping the house, maximizing retirement savings, securing maintenance, or minimizing ongoing financial ties? You can't optimize for everything. Knowing your top 2-3 priorities lets you make strategic concessions on lower-priority items.

15. Complete the Illinois Financial Affidavit. Both spouses must submit sworn financial disclosures. Having your numbers organized before completing this document reduces errors and strengthens your credibility with the court or mediator.

Organizing It All

This checklist is the sequence. The hard part is doing the actual work — tracing commingled assets, calculating maintenance under different scenarios, and building a marital balance sheet that accounts for tax-adjusted values.

The Illinois Divorce Financial Split Guide provides the worksheets for each of these steps, built specifically around Illinois's equitable distribution rules and the current maintenance formula.

See more Illinois guides →