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Important Notices
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.
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Latest News
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FY 2025-19, Change in the County Motor Fuel Tax Rate
The County Motor Fuel Tax Law (55 ILCS 5/5-1035.1) allows certain counties to impose a tax in the county on retail sales of motor fuel used in motor vehicles operating on Illinois public highways and in recreational type watercraft operating on Illinois waters. The sales must be for the purchaser’s use or consumption and not for the purpose of resale. See FY Bulletin 2025-19, Change in the County Motor Fuel Tax Rate for more information.
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IDOR Reminds Taxpayers that April 15 Filing Deadline is Quickly Approaching
IDOR Reminds Taxpayers that April 15 Filing Deadline is Quickly Approaching The Illinois Department of Revenue is reminding taxpayers that the Tuesday, April 15 deadline is quickly approaching for filing 2024 state individual income tax returns.
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Common Errors to Avoid When Preparing Tax Returns
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.
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Free Tax Preparation Resources
Visit our Free Tax Preparation Resources page where you can search for locations that can assist you with your Individual Income Tax preparation.
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Governor Pritzker and the Illinois Department of Revenue (IDOR)
... are encouraging eligible Illinoisans to take advantage of tax credits when filing their 2024 income tax returns this year.
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Gov. Pritzker and IDOR Announce Tax Relief for California Wildfire Victims
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.
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IDOR Announces Start of 2025 Income Tax Season
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.
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Gov. Pritzker and IDOR Announce IRS Direct File Service
Eligible Illinois taxpayers will now be able to prepare and file their 2024 federal and Illinois state tax returns online for free
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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.
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FY 2025-16, What's New for Illinois Income Taxes
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.
Trending Resources
Frequent Questions
- How do I check the status of my individual income tax refund?
- How do I obtain an IL-PIN and do I need it to file?
- When is my tax payment due?
- How do I get a copy of my tax return?
- What if I live or work in a state that has a reciprocal agreement with Illinois?
- Should I file an income tax return if I live in another state but worked in Illinois?
- What are the retailers' occupation and use tax rates in Illinois? Where can I find a list of these rates?
Trending Forms
- CRT-61 - Certificate of Resale (Registered Retailers/Resellers)
- 2024 IL-1040, Individual Income Tax Return, Instructions, and Schedules
- Illinois Business Registration
- 2025 Withholding (Payroll) Tax
- RUT-50 Instructions
- RUT-25 Instructions
- Power of Attorney
- ST-1, Sales and Use Tax Return
- STAX-1, Application for Sales Tax Exemption
