Grand Junction, Colorado sales tax rate: 8.66%
Last updated Checked monthly
The sales tax rate in Grand Junction, Colorado is 8.66%. That’s the 2.9% state rate plus 5.76% in local taxes. It’s higher than 80 of the 114 Colorado cities we checked.
Calculated by the 
Sales Tax APIThe same engine Zamp customers use.Grand Junction combined rate
8.66%
- Colorado state
- 2.9%
- Mesa CountyCounty
- 2%
- Grand JunctionCity
- 3.39%
- Mesa County PsiSpecial district
- 0.37%
Grand Junction sales tax calculator
Enter a price and what you’re selling.
- ColoradoState · 2.9%$2.90
- Mesa CountyCounty · 2%$2.00
- Grand Junction CityCity · 3.39%$3.39
- Mesa County PsiSpecial district · 0.37%$0.37
Charging this at checkout? Zamp calculates it on every order and files the returns.
Book a demoGrand Junction sales tax rate breakdown
State, county, city and special district taxes add up to 8.66%. District lines don’t follow city limits, so some Grand Junction addresses pay a different rate.
| Jurisdiction | Type | Rate |
|---|---|---|
| State of Colorado | State | 2.9% |
| Mesa County | County | 2% |
| Grand Junction City | City | 3.39% |
| Mesa County Psi | Special district | 0.37% |
| Combined rate | 8.66% |
Rate history
- July 20235.27%
- July 20248.66%
- July 20258.66%
- July 20268.66%
- Today8.66%
Changed since July 2023.
Charge the right rate in Grand Junction, on every order.
Zamp calculates tax at each customer’s address, special districts included, then files and pays every Colorado return for you, with a sales tax team you can call.
Grand Junction sales tax questions.
Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.
What is the sales tax rate in Grand Junction, Colorado?
The combined sales tax rate in Grand Junction is 8.66% as of November 2, 2026. It’s made up of 2.9% Colorado state tax, 2% Mesa County, 3.39% Grand Junction City, 0.37% Mesa County Psi.
Why does Grand Junction pay Mesa County Psi tax?
A special district such as Mesa County Psi levies its own sales tax on top of the state, county and city rates. District lines don’t always follow city limits, so an address a few streets away can have a different rate. This rate was calculated for Grand Junction’s 81501 ZIP code; the calculator prices any exact address.
Is SaaS taxable in Grand Junction?
Partly. Colorado taxes 25% of the price of software as a service, so the effective rate in Grand Junction is 3.39%.
Do online sellers have to collect sales tax in Grand Junction?
Yes, if they have nexus in Colorado: more than $100,000 in Colorado sales in the previous or current calendar year, or a physical presence in the state. They register with the Colorado Department of Revenue and charge the rate at the buyer’s address.
Sources. Colorado Department of Revenue · Zamp Sales Tax API, for Grand Junction’s 81501 ZIP code. Rates are checked monthly and are for information, not tax advice.
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