Illinois state tax refunds are not taxable on your federal return, and Illinois does not tax them either
When you receive a refund of Illinois state income tax, you do not owe federal income tax on that money. The IRS treats state tax refunds as a recovery of money you already paid, not as new income. Illinois also does not tax its own refunds. This rule applies whether you receive your refund by direct deposit, check, or prepaid card.
The only exception is narrow: if you claimed the standard deduction in the year you overpaid, the refund has no tax consequence at all. If you itemized deductions instead, you may have to report part of the refund as income on your federal return — but only if your state and local tax deductions (called SALT) exceeded $10,000 that year. Most people do not hit this threshold.
Key Takeaways
- Illinois state tax refunds are not taxable income on your federal tax return in almost all cases.
- Illinois itself does not tax refunds of state income tax you already paid.
- If you itemized deductions and claimed more than $10,000 in state and local taxes, you may owe federal tax on part of your refund — but this affects very few people.
- You do not need to report your Illinois refund on any tax form unless you itemized and exceeded the SALT cap.
When the standard deduction means zero tax on your refund
Most Illinois residents take the standard deduction, which means they do not list out individual deductions. If this is you, your state tax refund creates no federal tax liability. You received a refund because you overpaid; that overpayment is not income.
The standard deduction for 2024 is $14,600 for single filers and $29,200 for married filing jointly. If your deductible expenses do not exceed these amounts, you use the standard deduction, and your refund is completely tax-free at the federal level.
The itemized deduction exception and the SALT cap
If you itemized deductions on your federal return instead of taking the standard deduction, the picture changes slightly. The Tax Cuts and Jobs Act of 2017 capped the deduction for state and local taxes (SALT) at $10,000 per year. This cap applies to the combination of state income tax, property tax, and sales tax you paid.
Here is where a refund matters: if you claimed $10,000 or less in SALT deductions, your refund has no tax consequence. But if you claimed more than $10,000 in SALT and received a refund of state income tax, the IRS may require you to report part of that refund as income on Form 1040. This is because you deducted more state tax than you actually owed.
Example: You paid $12,000 in Illinois state income tax and claimed all $12,000 as a deduction. The SALT cap means only $10,000 of that deduction was allowed. Later, you receive a $2,000 refund. The IRS may ask you to report $2,000 as income because you deducted tax you did not ultimately pay. However, this situation is uncommon — most people do not exceed the $10,000 SALT cap.
How to know if you need to report your refund
Look at your 2023 federal tax return (the one you filed in early 2024). Find Schedule A, which is where itemized deductions go. If you did not file Schedule A, you took the standard deduction, and you owe no federal tax on your Illinois refund.
If you did file Schedule A, look at line 5, which shows your state and local taxes deduction. If that number is $10,000 or less, your refund is not taxable. If it exceeds $10,000, you may need to report part of your refund as income when you file your 2024 return — but only the amount of the refund itself, not the full overage.
The IRS will send you Form 1040-SR or a notice if they believe you owe tax on a state refund. You do not have to guess or calculate this yourself; the agency will tell you if it applies to your situation.
Illinois does not tax its own refunds
Illinois has no state-level tax on refunds of Illinois income tax. This is true whether you are a resident or a nonresident who paid Illinois tax. The state treats refunds the same way the federal government does: as a return of overpaid tax, not as income.
If you owe Illinois taxes in a different year, the state can offset your refund to cover that debt. But the refund itself is not taxable income under Illinois law.
What to do when you receive your refund
When your Illinois refund arrives, you do not need to take any action unless you itemized deductions and exceeded the SALT cap. Keep the refund check or confirmation of direct deposit for your records. If you filed electronically, the state will send you a confirmation email or letter with the refund amount and delivery method.
If you are unsure whether you itemized or what your SALT deduction was, contact a tax preparer or call the IRS at 1-800-829-1040. They can tell you in a few minutes whether your refund has any tax consequence.
Frequently Asked Questions
Do I have to report my Illinois refund on my tax return?
Only if you itemized deductions on your federal return and claimed more than $10,000 in state and local taxes. If you took the standard deduction, no. If you itemized but stayed under $10,000 in SALT, no. In most cases, the answer is no.
What if I received a refund and also owe Illinois taxes this year?
The refund itself is still not taxable. However, if you owe Illinois taxes for the current year, the state may hold or offset your refund to cover that debt. Contact the Illinois Department of Revenue if you believe this has happened.
Does my refund count as income for unemployment or other benefits?
A tax refund is generally not counted as income for unemployment, SNAP, Medicaid, or other means-tested programs. However, some programs have specific rules, so contact the program directly if you are concerned about how a refund might affect your status.
What if I received a refund by prepaid card instead of direct deposit?
The delivery method does not change the tax treatment. Whether you receive your refund by check, direct deposit, or prepaid card, the same rules apply: it is not taxable unless you itemized and exceeded the SALT cap.