Synopsis As Introduced Amends the Illinois Income Tax Act. Allows an income tax credit for each individual taxpayer who is a teacher teaching in a school in Illinois. Provides that the amount of the credit is equal to 25% of the eligible classroom expenses made by the taxpayer during the taxable year, but the credit may not exceed $500. Defines "eligible classroom expenses" as the aggregate amount of nonreimbursed classroom expenses made by the taxpayer during the taxable year less $250. Provides that the credit may not be carried forward or back and may not reduce the taxpayer's liability to less than zero. Effective immediately.