What is the sales tax for New Castle, Colorado? - The sales tax for New Castle, Colorado is 8.2% as of 2026. 8.2% is the combine sales tax from 2.9% of Colorado state sales tax, 3.5% of local sales tax, and 1% of Garfield county sales tax.
| State | Colorado | State Tax | 2.9% |
|---|---|---|---|
| City | New Castle | City Tax | 3.5% |
| County | Garfield | County Tax | 1% |
| Special Tax | 0.8% | ||
| Total Sales Tax | 8.2% | ||
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