The Illinois Department of Revenue is reminding taxpayers that the upcoming deadline is quickly approaching for filing 2023 state individual income tax returns. The agency has been collecting and processing returns since the 2024 tax season officially began on January 29th, and the deadline is Monday, April 15th.
If a taxpayer electronically files an error-free return, they should receive a direct deposit refund in approximately four weeks. In 2023, the agency received a total of nearly 6.2 million IL-1040 returns. Of those returns received, close to 5.6 million were filed electronically, or just over 90%.