Maricopa County in Arizona has a combined sales tax rate of 8.6% as of 2026. This includes the state rate of 5.6% plus a local county rate of 3%. With a population of 4,420,568, Maricopa County represents a significant market for businesses.
For a $500 purchase in Maricopa County, the sales tax would be $43.00, bringing the total to $543.00.
Business Compliance in Maricopa County
Businesses must register with the Arizona Department of Revenue to collect and remit sales tax. Filing frequency depends on sales volume. With a population of 4,420,568, Maricopa County offers significant market potential for businesses of all sizes.