Imposed on the privilege of earning or receiving income in or as a resident of Illinois. Trusts may be either residents or nonresidents. Residents allocate all of their income to Illinois. Nonresidents, including corporations, allocate and apportion income. The department collects the tax and redistributes it to the local taxing bodies.
Payments are similar to state income tax procedures, including payment of estimated tax.
Corporations, as well as S corporations, partnerships, and trusts, are subject to annual return requirements. The return for gross receipts of January, for example, should be filed by February 20. Imposed on the privilege of using in Illinois, tangible personal property purchased at retail from a retailer anywhere. The tax generally is paid directly to the retailer in Illinois. In the case of motor vehicles, watercraft, or aircraft purchased outside of Illinois, the tax is paid through the appropriate Illinois title or registration agency at the time of applying for title or registration.