New Castle County, Delaware sales tax rate: 0.0%
The county-wide general sales tax rate in New Castle County, Delaware is 0.0%, of which 0.0% is the Delaware state rate. The same rate applies across the county.
Breakdown, 0.0%
| Level | Jurisdiction | Rate |
|---|---|---|
| State | Delaware | 0.0% |
| County | New Castle County | 0.0% |
| City | Largest city in county | 0.0% |
| Special | Transit / district | 0.0% |
Neighboring counties
- Cecil County, MD 6.0%
- Chester County, PA 6.0%
- Delaware County, PA 6.0%
- Gloucester County, NJ 6.625%
- Kent County, MD 6.0%
- Kent County, DE 0.0%
- Salem County, NJ 6.625%
Other counties in Delaware
- Kent County 0.0%
- Sussex County 0.0%
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.