Illinois Department of Revenue

Committed to excellence and working together to fund Illinois' future

Important Notices

2025 Illinois Tax Filing Season is Now Open

The Illinois Department of Revenue is now accepting 2024 state individual income tax returns.

Starting this year, eligible taxpayers can use IRS Direct File to submit their federal returns directly, allowing for easy transfer to MyTax Illinois for free state tax return filing.

Have you received a letter or Final Notice of Tax Due assessing an Estimated Payment Penalty?

Learn why you received this letter from IDOR by visiting our webpage Letters and Notices for Individual Income Tax (illinois.gov).

Response Options for Identity Verification Letters

If you received an identity verification letter from the Illinois Department of Revenue, you can respond electronically by selecting the option that matches your letter: enter a code, take a quiz, or attach documents. No MyTax Illinois account is required. For more information, see Identity Verification Letters Information.

Information For

Featured Programs

Where’s My Refund?

Check your refund status

MyTax Illinois

IDOR's free online account management program File, pay, register, and more

Earned Income Tax Credit (EITC)

This program provides benefits for working people with low to moderate income

Fraud Prevention and Reporting

Reporting and Preventing Identity Theft and Additional Information and Resources

Volunteer Emergency Worker Tax Credit

Information about the credit and application link

Tax Lien Registry

Search for tax liens filed by the Illinois Department of Revenue

More Programs

Latest News

Common Errors to Avoid When Preparing Tax Returns

News - Wednesday, March 12, 2025

The Illinois Department of Revenue (IDOR) is advising taxpayers to be vigilant when preparing tax returns in order to avoid several common errors which can lead to delays, rejections, or even penalties.
Register for our Tax Education Webinar - Tax Processing Season Update 2025

News - Tuesday, March 11, 2025

Please join us for our free webinar where we will discuss the 2025 Illinois tax processing season. Thursday, March 13, 2025, 9:30 a.m. to 11:30 a.m.
Free Tax Preparation Resources

News - Tuesday, February 11, 2025

Visit our Free Tax Preparation Resources page where you can search for locations that can assist you with your Individual Income Tax preparation.
Governor Pritzker and the Illinois Department of Revenue (IDOR)

News - Tuesday, February 04, 2025

... are encouraging eligible Illinoisans to take advantage of tax credits when filing their 2024 income tax returns this year.
Gov. Pritzker and IDOR Announce Tax Relief for California Wildfire Victims

Announcements - Thursday, January 23, 2025

Governor Pritzker and the Illinois Department of Revenue (IDOR) announced today that disaster tax relief will be available for individuals and businesses in southern California affected by the wildfires and straight-line winds that began on Jan 7, 2025. Affected taxpayers now have until October 15, 2025, to file various state individual and business tax returns and make tax payments. For more information, see the full press release.
IDOR Announces Start of 2025 Income Tax Season

News - Wednesday, January 15, 2025

The 2025 tax season is quickly approaching, and the Illinois Department of Revenue (IDOR) announced today it will begin accepting and processing 2025 tax returns on Monday, January 27, the same date the Internal Revenue Service (IRS) begins accepting federal income tax returns.
Gov. Pritzker and IDOR Announce IRS Direct File Service

News - Friday, January 10, 2025

Eligible Illinois taxpayers will now be able to prepare and file their 2024 federal and Illinois state tax returns online for free
FY 2025-17, Reporting Requirements for Certain Titled or Registered Property Subject to Tax on Lease or Rental Receipts

News - Thursday, January 02, 2025

News article for FY 2025-17 - Effective January 1, 2025, if you lease or rent tangible personal property in the ordinary course of your business you are considered a retailer subject to Illinois’ Sales and Use Tax laws. See the discussion of P.A. 103-592 in FY 2025-15, Illinois Sales and Use Tax Applies to Leased or Rented Tangible Personal Property.
FY 2025-16, What's New for Illinois Income Taxes

News - Thursday, January 02, 2025

Changes for 2024 Illinois Income Tax forms and schedules for individuals and businesses, 2025 Withholding Income Tax forms and schedules, and tax preparers and software developers. See FY Bulletin 2025-16, What's New for Illinois Income Taxes for more information.
FY 2025-18, Change in the Motor Fuel Use Tax Rate, Effective January 1, 2025, through June 30, 2025

News - Monday, December 30, 2024

Effective July 1, 2024, Illinois Motor Fuel Use Tax is comprised of two parts, Part A and Part B. This tax is reported and paid by licensees under the International Fuel Tax Agreement (IFTA).