Kauai County, Hawaii sales tax rate: 4.5%
The county-wide general sales tax rate in Kauai County, Hawaii is 4.5%, of which 4.0% is the Hawaii state rate. The same rate applies across the county.
Breakdown, 4.5%
| Level | Jurisdiction | Rate |
|---|---|---|
| State | Hawaii | 4.0% |
| County | Kauai County | 0.5% |
| City | Largest city in county | 0.0% |
| Special | Transit / district | 0.0% |
Other counties in Hawaii
- Hawaii County 4.5%
- Honolulu County 4.5%
- Kalawao County 4.5%
- Maui County 4.5%
Rates as of Jan 2026. Source: EvvyTools US Sales Tax Rates by ZIP Code (2026). General rate on tangible goods; not tax advice. Verify with your state Department of Revenue before filing or pricing.