NOTE:

  • If you are instructed to call us, you must have a copy of your previously filed Form IL-1040, Individual Income Tax Return, available to reference. You will be required to verify certain information from your tax return to confirm your identity and your authority to discuss information about your refund.

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  • If you are calling on behalf of a taxpayer, you must be designated as Third Party Designee on the taxpayer’s Form IL-1040. Otherwise, Form IL-2848, Power of Attorney, is required. This includes tax preparers inquiring about a client’s return.

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  • If you are inquiring about a prior year refund, you must call taxpayer assistance at 1 800 732-8866 and have the information listed above available