Jefferson County Colorado (CO)
29 ZIP Code

Jefferson County, CO Sales Tax Rates 2026

2026 sales tax rate guide for Jefferson County, CO. Average combined tax rate is 6.39% with local jurisdictions ranging up to 8.25%.

Average Combined Rate
6.39%
Estimated Tax Range: 4.50% - 8.25%
⚡ Direct Tax Answer & Key Takeaway
As of 2026, the local county sales tax rate in Jefferson County (Colorado) is 0.50%. Combined sales tax rates across cities in this county range from 4.50% to 8.25% (averaging 6.39%).
County Tax
0.50%
Average Combined Rate
6.39%
Max Local Rate
8.25%
Indexed Cities
18
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📋 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 ↗

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Address-Specific Rates Rates current for 2026
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ZIP Codes in Jefferson County

❓ Frequently Asked Questions

Key questions and answers regarding sales tax rates, exemptions, and compliance.

The county tax rate for Jefferson County is 0.50%. When combined with Colorado state taxes and local municipal/district taxes, the overall sales tax rate varies between 4.50% and 8.25%.
In Colorado, grocery items are currently Exempt (0% Tax). SaaS and digital automated goods are Non-Taxable.