Illinois County Motor Fuel Tax Rate Changes, July 2025
Summary
The Illinois Department of Revenue has published the annual County Motor Fuel Tax rates effective July 1, 2025 through June 30, 2026. The 2.82% rate increase reflects the percentage change in the Consumer Price Index for All Urban Consumers for the 12 months ending March 2025, rounded to the nearest one-tenth of one cent. County-specific rates are set for DuPage (9.7¢), Kane (5.0¢), Lake (4.8¢), McHenry (8.5¢), and Will (5.0¢) counties per gallon.
Affected retailers making retail sales of motor fuel subject to County Motor Fuel Tax in these five Illinois counties should verify applicable rates via the MyTax Illinois Tax Rate Finder at mytax.illinois.gov before July 1, 2025.
“The percentage increase determined by IDOR for July 1, 2025, is 2.82% (.0282).”
About this source
GovPing monitors IL DOR Informational Bulletins for new tax regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 13 changes logged to date.
What changed
The Illinois Department of Revenue has announced the annual County Motor Fuel Tax rate adjustments effective July 1, 2025. The 2.82% increase is calculated based on the Consumer Price Index for All Urban Consumers for the 12 months ending in March 2025, per the County Motor Fuel Tax Law (55 ILCS 5/5-1035.1). Rates cannot exceed the previous year's rate plus one cent per gallon.
Retailers making retail sales of motor fuel in DuPage, Kane, Lake, McHenry, and Will counties should update their point-of-sale systems and tax compliance procedures to reflect the new rates. The MyTax Illinois Tax Rate Finder at mytax.illinois.gov provides current rate information and the platform for filing County Motor Fuel Tax returns.
Archived snapshot
Apr 27, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
FY 2025-19
April 2025
This bulletin is written to inform you of recent changes; it does not replace statutes, rules and regulations, or court decisions.
For information:
Visit our website at:
tax.illinois.gov
Email us at:
Rev.WebServices@illinois.gov
Printable version available in:
English
Change in the County Motor Fuel Tax Rate, Effective July 1, 2025, through June 30, 2026
To: All Retailers Making Retail Sales of Motor Fuel That Are Subject to County Motor Fuel Tax
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. The Law requires the Illinois Department of Revenue (IDOR) to determine an annual rate increase to take effect on July 1 of each year and continue through June 30 of the next year. The rate increase shall be 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 the year in which the increase takes place, rounded to the nearest one-tenth of one cent. Each new rate may not exceed the rate in effect on June 30 of the previous year plus one cent. The percentage increase determined by IDOR for July 1, 2025, is 2.82% (.0282).
What are the County Motor Fuel Tax rates from
July 1, 2025, through June 30, 2026?
From July 1, 2025, through June 30, 2026, the County Motor Fuel Tax rates are as follows:
- DuPage County 9.7¢ per gallon
- Kane County 5.0¢ per gallon
- Lake County 4.8¢ per gallon
- McHenry County 8.5¢ per gallon
- Will County 5.0¢ per gallon Rate information is available in the MyTax Illinois Tax Rate Finder at mytax.illinois.gov. Use MyTax Illinois to file and pay your County Motor Fuel Tax returns.
Back to top
About IDOR
Quick Links
- Taxpayer Answer Center
- Make a Payment
- MyTax Illinois
- MyDec
- Business Incentives Reporting
- Invest in Kids
- Lien Registry
- Tax Rate Database
Related Sites
Related changes
Get daily alerts for IL DOR Informational Bulletins
Daily digest delivered to your inbox.
Free. Unsubscribe anytime.
About this page
Every important government, regulator, and court update from around the world. One place. Real-time. Free. Our mission
Source document text, dates, docket IDs, and authority are extracted directly from IL DOR.
The summary, classification, recommended actions, deadlines, and penalty information are AI-generated from the original text and may contain errors. Always verify against the source document.
Classification
Who this affects
Taxonomy
Browse Categories
Get alerts for this source
We'll email you when IL DOR Informational Bulletins publishes new changes.
Subscribed!
Optional. Filters your digest to exactly the updates that matter to you.