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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 2025-24, Summary of Sales Tax Rate Changes for Aviation Fuel, Effective July 1, 2025
To: Registered retailers of aviation fuel in taxing jurisdictions whose tax rate is changing
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FY 2025-23, Change in the Motor Fuel Tax Rate, Effective July 1, 2025, through June 30, 2026
Section 2 of the Motor Fuel Tax Law (35 ILCS 505/2) imposes a tax per gallon on all motor fuel (i.e., diesel fuel, gasoline, gasohol, liquefied petroleum gas (LPG, commonly known as “propane”), compressed natural gas (CNG), and liquefied natural gas (LNG)) used in motor vehicles operating on Illinois public highways and in recreational type watercraft operating on Illinois waters. The Law provides that the rate of tax will be increased annually on July 1 of each year by an amount equal to the percentage increase, if any, in the Consumer Price Index for All Urban Consumers for all items published by the United States Department of Labor for the 12 months ending in March of each year, rounded to the nearest one-tenth of one cent. The percentage increase for July 1, 2025, is 2.82% (.0282).
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FY 2025-22, Change in the Motor Fuel Use Tax Rate, Effective July 1, 2025, through December 31, 2025
Illinois Motor Fuel Use Tax is comprised of two parts, Part A and Part B. 35 ILCS 505/13a. This tax is reported and paid by licensees under the International Fuel Tax Agreement (IFTA). The rates listed here are effective July 1, 2025, through December 31, 2025, for use on the quarterly IFTA returns.
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FY 2025-21, Summary of Municipal Motor Fuel Tax Rate Changes, Effective July 1, 2025
Effective July 1, 2025, the following municipalities completely or partially in Cook County are imposing a Municipal Motor Fuel Tax rate on sales of motor fuel at retail within the municipality. (65 ILCS 5/8-11-2.3.)
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Illinois Now Offers Electronic Tax Filing and Payment for Your Boat Purchase
Before you register and title a boat with the Illinois Department of Natural Resources, you must file and pay any taxes owed. If you acquire a boat from a person or business that is not in the business of selling watercraft at retail, you must file Form RUT-75, Aircraft/Watercraft Use Tax Transaction Return and pay 6.25% watercraft use tax on the watercraft's purchase price.
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Effective July 1, 2025, certain taxing jurisdictions have, by ordinance, imposed or changed their Municipal or County Cannabis Retailers’ Occupation Tax on the gross receipts from sales of adult use cannabis.
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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.
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
