Colorado Sales Tax Rates: 2026 County Guide
Complete sales tax breakdown for all 62 counties in Colorado. Select a county to see city-level rates and How-To guides.
Colorado Base State Tax Rate
| Jurisdiction | Rate |
|---|---|
| Colorado State Sales Tax | 2.900% |
| Total Combined Rate | 7.900% |
Colorado Sales Tax Rules, Local Rates and Nexus Notes
Data-rich guideStatewide retail transactions in Colorado are subject to base tax laws, which are further modified by local city and county jurisdictions. Understanding these statewide rules helps remote sellers and local retailers avoid audit penalties.
For local transactions, the combined rate of 7.900% consists of a 2.900% state rate. This rate matches the estimated state average combined rate of 7.900% across local jurisdictions.
In a market of 5,773,714 people, local surtaxes are closely monitored. Point-of-sale software must distinguish between city limits and unincorporated adjacent territories. Checking local tax boundary maps is highly recommended to resolve potential address validation conflicts.
Registration obligations depend on Colorado state economic nexus criteria. Shippers must evaluate their total sales within the state to verify if collection is required. Compliance requires reviewing economic nexus guidelines: Remote sellers meet economic nexus rules in CO if they reach $100,000 in gross sales or 200 separate transactions within a calendar year. State-level guidelines on grocery food or clothing exemptions should also be integrated into your tax strategy. Confirm all specific taxability rules and deadlines directly with Colorado officials to prevent audit issues.
Rate data last checked in the database: March 2026
Economic Nexus Threshold
Avg Local Tax Rate
State Nexus Checker
Use current state threshold data before you register or start collecting.
Nexus estimate
State Exemption Finder
Guide buyers and sellers toward the right official exemption paperwork path.
State Product Taxability Checker
Version 1 covers the tax categories already modeled in the current database.
State-aware estimate
Verify with official sourceAll 62 Colorado Counties
Adams
Alamosa
Arapahoe
Archuleta
Baca
Bent
Boulder
Broomfield
Chaffee
Cheyenne
Clear Creek
Conejos
Costilla
Crowley
Custer
Delta
Denver
Dolores
Douglas
Eagle
El Paso
Elbert
Fremont
Garfield
Gilpin
Grand
Gunnison
Hinsdale
Huerfano
Jackson
Jefferson
Kiowa
Kit Carson
La Plata
Lake
Larimer
Lincoln
Logan
Mesa
Mineral
Moffat
Montezuma
Montrose
Morgan
Otero
Ouray
Park
Phillips
Pitkin
Prowers
Pueblo
Rio Blanco
Rio Grande
Routt
Saguache
San Juan
San Miguel
Sedgwick
Summit
Teller
Washington
Weld
Largest Cities in Colorado
These major city pages usually attract the strongest commercial intent and create more downstream tool usage.
Highest Tax Cities in Colorado
Comparison links like these help users move from broad state intent into more specific local rate pages.
Sales Tax Calculator
Using the current combined rate for Colorado.
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Sitewide Helper
Sales Tax Calculator & Compliance Helper
One compact utility block for tax calculation, reverse calculation, ZIP lookup, nexus checks, exemption guidance, and product taxability.
Advanced Sales Tax Calculator
Estimate tax with shipping, discounts, and exempt subtotal support.
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Rounded to the nearest cent. Tax treatment of shipping and discounts can vary by state.
Reverse Sales Tax Calculator
Work backward from the total paid to estimate the pre-tax price and tax amount.
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ZIP / City Sales Tax Lookup
Search by ZIP code, city, county, or state to find current combined rates and local breakdowns.
Economic Nexus Checker
Compare your state-specific sales activity against current nexus thresholds using existing site data.
Nexus estimate
Should I Collect Sales Tax?
A fast intent-matching decision tree for businesses, marketplace sellers, and remote sellers.
Do you sell taxable goods or taxable services?
Do you sell into states outside your home state?
Have you crossed a nexus threshold in a destination state?
Do marketplaces handle most of your sales?
Do you have physical presence in the state?
Decision
Exemption Certificate Finder
Point buyers and sellers toward the right official portal and documentation checklist.
Product Taxability Checker
Version 1 uses the categories already modeled in the current database and always links back to official verification.
State-aware estimate
Verify with official source