You are very lucky to live in one of the few states that allow a deduction for homeschooling. They do not make it very easy to get that credit though.
I do not have access to Illinois State Returns on TurboTax but you are looking for Schedule ICR. It has to be attached to your state form. In your state return, search for "Schedule ICR".
I attached a link to it below.
You may figure a credit for qualified education expenses, in excess of $750, you paid during the tax year if
- you were the parent or legal guardian of a full-time student who was under the age of 21 at the close of the school year,
- you and your student were Illinois residents when you paid the expenses, and
- your student attended kindergarten through twelfth grade at a public or nonpublic school in Illinois during the tax year.
For tax years ending on after December 31, 2017, the K-12 Education Expense Credit is not allowed if a taxpayer’s federal Adjusted Gross Income (AGI) exceeds $500,000 for returns with a federal filing status of married filing jointly, or $250,000 for all other returns.
You must complete Step 2, Section B of Schedule ICR, including the K-12 Education Expense Credit Worksheet to claim this credit.
http://tax.illinois.gov/TaxForms/IncmCurrentYear/Individual/IL-1040-Schedule-ICR.pdf
For more information, please see:
Schedule ICR, Illinois Credits
Publication 119 - Education Expense Credit - General Rules and Requirements for Home Schools
Publication 132 - Education Expense Credit General Rules and Requirements for Parents and Guardians
