Businesses operating in DuPage County, Illinois face a combined sales tax rate of 7.75% in 2026. The 1.5% local rate is added to the 6.25% state base. Home to 930,000 residents, the county offers substantial commercial opportunities.
For a $500 purchase in DuPage County, the sales tax would be $38.75, bringing the total to $538.75.
Business Compliance in DuPage 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 930,000, DuPage County offers significant market potential for businesses of all sizes.