For 2026, the sales tax rate in Twin Falls County, Idaho stands at 6% — a combination of the 6% state rate and 0% local levy. The county's 90,046 residents make it an important market in the region.
For a $500 purchase in Twin Falls County, the sales tax would be $30.00, bringing the total to $530.00.
Business Compliance in Twin Falls County
Businesses must register with the Idaho State Tax Commission to collect and remit sales tax. Filing frequency depends on sales volume. With a population of 90,046, Twin Falls County offers significant market potential for businesses of all sizes.