How Will My Illinois Divorce Affect My Taxes?

 Posted on May 14, 2026 in Divorce

Divorce reshapes your finances in ways beyond merely property division. Your tax situation can change significantly during and after a divorce. Understanding what to expect before your divorce is finalized can help you avoid costly surprises during the division process and during tax season. A Kane County divorce attorney can walk you through what applies to your specific situation in 2026.

How Does Your Filing Status Change After Divorce in Illinois?

Changes to your filing status depend on when you are officially divorced. The IRS determines your filing status based on whether you were legally married on December 31 of the tax year. If your divorce was finalized any time before that date, you're considered unmarried for the entire year, even if you were married for most of it.

That means you'll file as either single or, if you have a qualifying dependent child, head of household. To qualify for head of household status, you generally must pay more than half the cost of maintaining the household and have a qualifying dependent living with you for more than half the year. Head of household carries a higher standard deduction and more favorable tax brackets than filing single, so it's worth looking into whether you qualify.

If your divorce isn't finalized by December 31, you're still considered married for that tax year. You can file jointly or separately. Which you choose can affect how much you’ll pay in taxes and receive in refunds, so if your spouse is open to it, filing jointly may be a better option financially. If your divorce is not amicable, though, filing separately may help you avoid arguments and having to divide up a joint tax return.

What Are the Tax Rules for Alimony and Child Support in Illinois?

Taxes on spousal and child support have changed substantially in the past ten years, so having up-to-date information is vital for accurate financial planning. The rules changed significantly under the Tax Cuts and Jobs Act of 2017. The new rules generally apply to any divorce agreement executed after December 31, 2018.

Under current federal law:

• Alimony (called "maintenance" in Illinois) is no longer deductible for the paying spouse.

• The receiving spouse does not report alimony as taxable income.

• Child support has no tax implications for either party. It's neither deductible nor taxable.

If a divorce agreement was finalized before January 1, 2019, the old rules may still apply.

How Are Divided Assets and Retirement Accounts Taxed?

Basic property division of things like vehicles and liquid assets generally doesn't trigger immediate taxes. Transferring assets between spouses as part of a divorce settlement is typically not a taxable event under federal law. However, the tax consequences can show up later when you sell or withdraw from those assets.

Retirement Account Transfers

Dividing retirement accounts in a divorce requires care to avoid taxes and early withdrawal penalties. To divide a 401(k) or pension without tax consequences, you need a Qualified Domestic Relations Order, or QDRO. This is a legal document that instructs the retirement plan administrator how to divide the account. Without it, you could face significant penalties.

IRAs are handled differently. As long as the process follows IRS rules precisely, a properly structured transfer incident to divorce can move IRA funds to a spouse's account without tax consequences. It still requires attention to detail.

Capital Gains on the Family Home

If you and your spouse are selling the marital home as part of the divorce, you should be aware of the capital gains exclusion under 26 U.S.C. § 121. A married couple filing jointly can exclude up to $500,000 in gains. Once divorced, each person can only exclude up to $250,000. Depending on how much the home has appreciated, the timing of the sale relative to your divorce could affect how much you owe.

Call a Batavia, IL Divorce Lawyer Today

Tax decisions in divorce are best made with the help of someone familiar with all the potential penalties. If you’re in a financially difficult situation, expert help is especially important. Badly-handled asset transfers can potentially cost you thousands. Our Kane County divorce attorney is familiar with these cases and ready to help you avoid the tax pitfalls of divorce. Call the Law Office of Van A. Larson, P.C. at 630-879-9090 today for a free consultation about your situation.