According to Am I eligible for a property tax credit? on the Illinois Department of Revenue's Property Tax Credit page:
You will qualify for the property tax credit if:
- your principal residence during the year preceding the tax year at issue was in Illinois, and
- you owned the residence, and
- you paid property tax on your principal residence (excluding any applicable exemptions, late fees, and other charges). See below for other exclusions.
Notes:
- If you are married and both you and your spouse qualify for a property tax credit on your principal residence, and you are filing separate Illinois returns, you may each claim a property tax credit. However, the total amount of credit claimed between both spouses may not exceed 5 percent of the qualifying property tax.
- Illinois property you purchased - You may figure a credit for Illinois property you purchased during 2022 providing you figure only that portion of your taxes that pertains to the time you owned and lived at the property during 2022. You may not take a credit for taxes you paid if the seller reimbursed you at the time of closing. You also may not take a credit on your 2023 return for property you purchased in 2023.
- Illinois property you sold - You may figure a credit for Illinois property you sold in 2023 by combining the 2022 property tax paid in 2023, as well as a portion of the 2023 tax paid based on the time you owned and lived at the property during 2023. You may not take a credit on your 2023 return for property sold during 2022.
Nonresidents of Illinois may not take this credit.
To enter your Illinois property tax information in TurboTax Online: