Washington County
•
Colorado (CO)
3 ZIP Code
Washington County, CO Sales Tax Rates 2026
2026 sales tax rate guide for Washington County, CO. Average combined tax rate is 4.40% with local jurisdictions ranging up to 5.40%.
Average Combined Rate
4.40%
Estimated Tax Range: 2.90% - 5.40%
⚡ Direct Tax Answer & Key Takeaway
As of 2026, the local county sales tax rate in Washington County (Colorado) is 0.00%. Combined sales tax rates across cities in this county range from 2.90% to 5.40% (averaging 4.40%).
County Tax
0.00%
Average Combined Rate
4.40%
Max Local Rate
5.40%
Indexed Cities
3
Cities & Towns in Washington County
| City | Combined Sales Tax Rate | Action |
|---|---|---|
| Akron | 5.40% | View Tax Rates → |
| Otis | 4.90% | View Tax Rates → |
| Cope | 2.90% | View Tax Rates → |
📋 State Tax Rules & Compliance Guide
Sourcing Rule:
Destination-based
Groceries & Food:
Exempt (0% Tax)
Clothing & Apparel:
Taxable at standard rate
SaaS & Digital Goods:
Non-Taxable
Economic Nexus Threshold:
$100,000 in sales or 200 separate transactions
Official Tax Authority:
Colorado Department of Revenue ↗
Interactive Sales Tax Calculator
Calculate exact sales tax and total purchase price instantly.
Address-Specific Rates
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Rates current for 2026
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State Tax:
Combined Sales Tax Rate:
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County Tax ()
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ZIP Codes in Washington County
❓ Frequently Asked Questions
Key questions and answers regarding sales tax rates, exemptions, and compliance.