The short answer
What Illinois families should know.
Form 1040 provides a useful map of reported income, deductions, tax, payments, and refunds. It is a starting point for asking financial questions during divorce, not a complete account of current cash flow. Read the correct year's form with its schedules and supporting records, especially when a joint return combines both spouses' information.
Start with the year and the complete filed return
Confirm the tax year, filing status, names, and whether the document is the filed version or a preparer's draft. Obtain all schedules and attachments that belong to it. The IRS changes forms across years, so a line number from an older article may point to a different item. Keep amended returns and explanations alongside the original. A cropped image of the first page can omit the information needed to understand a reported figure.
Trace each income category to its source
The income portion separates wages, interest, dividends, retirement distributions, capital gains, and additional income. Some categories show both a total amount and a taxable amount. Those figures are related and should not simply be added together. Follow references to attached schedules and then to source records, such as a brokerage statement or a business return. On a joint return, identify which person or account generated an item before treating the combined figure as one spouse's earnings.
Distinguish income, tax, and payments
Adjusted gross income, taxable income, and total tax answer different questions. Deductions affect the tax calculation; withholding and estimated payments describe amounts paid toward the bill. Refundable credits can also affect the result. A refund is therefore not a direct measurement of salary or an unexplained financial windfall. Review whether an overpayment was requested as a refund or applied to the following year's estimated tax, and trace the actual transaction rather than relying on the return alone.
Use the return to ask better follow-up questions
Compare several years and flag changes in income sources, unusual distributions, losses, or deductions. Then compare the historical return with current pay records and account activity. A recent job change or one-time sale can make the last filed return a poor description of today's budget. Ask for the records behind a specific discrepancy instead of assuming it proves concealment. Tax classifications also do not automatically resolve a family-law support calculation; that analysis requires the relevant legal framework and financial evidence.
Prepare
Useful next steps
- Collect complete filed and amended returns for the relevant years.
- Create a list of schedules or source documents that are missing.
- Separate combined joint-return figures by the person or account involved.
Avoid
Common missteps
- Adding a distribution's total and taxable portions together.
- Using a refund or adjusted gross income as a complete measure of available cash.
Continue reading
Related Illinois family-law guides.
Primary sources
Read the governing law and guidance.
This article provides general information and is not legal advice. Laws, court rules, local procedures, and individual facts can change the analysis. Reading it or contacting the firm does not create an attorney-client relationship.