For 2026, the sales tax rate in Fairfax County, Virginia stands at 6% — a combination of the 5.3% state rate and 0.7% local levy. The county's 1,150,309 residents make it an important market in the region.
For a $500 purchase in Fairfax County, the sales tax would be $30.00, bringing the total to $530.00.
Business Compliance in Fairfax County
Businesses must register with the Virginia Department of Taxation to collect and remit sales tax. Filing frequency depends on sales volume. With a population of 1,150,309, Fairfax County offers significant market potential for businesses of all sizes.