For 2026, the sales tax rate in Will County, Illinois stands at 8% — a combination of the 6.25% state rate and 1.75% local levy. The county's 700,000 residents make it an important market in the region.
For a $500 purchase in Will County, the sales tax would be $40.00, bringing the total to $540.00.
Business Compliance in Will County
Businesses must register with the Illinois Department of Revenue to collect and remit sales tax. Filing frequency depends on sales volume. With a population of 700,000, Will County offers significant market potential for businesses of all sizes.