Colorado sales tax calculator
Get accurate Colorado sales tax calculations in seconds. Whether you're creating invoices, checking expenses, or planning pricing, our free calculator gives you the exact figures you need – no sign-up required.
- Calculate exact sales tax for any Colorado transaction instantly
- Add the right tax amount to invoices and quotes with confidence
- Verify tax on expenses and purchases for accurate bookkeeping
Tired of manual calculations?
Let Xero handle the numbers so you can focus on growing your business. Get one month free.
Colorado sales tax rates
Understanding Colorado's sales tax structure helps you price correctly and stay compliant. Here's what you need to know:
- State Sales Tax Rate: 2.90%
- Average Local Tax Rate: 4.96%
- Maximum Local Tax Rate: 8.30%
- Average Combined Rate: 7.86%
Important note:
While the state rate is fixed at 2.90%, local rates vary by jurisdiction.

How to register for sales tax in Colorado
Register online for a Colorado sales tax license. Any business selling retail goods in the state must do this. Colorado Sales Tax Account License.
Gather your business information
Have your business details, EIN/SSN, and activity description ready.
Apply online via revenue online
Complete your application through the Colorado Department of Revenue's online portal.
Display license & maintain compliance
After registering, display your license, renew it as needed, and update it if your business changes.
Colorado sales tax filing due dates
Stay compliant with these filing deadlines, which are assigned based on the amount of sales tax you collect:
- Monthly Filing: Due the 20th of the following month (for businesses collecting $600/month or more).
- Quarterly Filing: Due April 20, July 20, October 20, and January 20 (for businesses collecting under $600/month).
- Annual Filing: Due January 20 of the following year (for businesses collecting $15/month or less).
- EFT Payment: High-volume filers (paying over $75,000/year) must pay via Electronic Funds
Important note:
Returns must be filed even in periods with no tax due.

Simplify Colorado sales tax with Xero
Xero helps you through your entire Colorado sales tax process. It automatically applies correct tax rates to every invoice and generates compliant reports for filing. Eliminate spreadsheet errors, ensure accuracy, and spend more time focusing on growing your business instead of on tax compliance.
Get one month free
FAQs about Colorado sales tax
Common exemptions include unprepared food, prescription drugs, and medical devices. Manufacturing equipment and agricultural supplies may also qualify.
Common exemptions include unprepared food, prescription drugs, and medical devices. Manufacturing equipment and agricultural supplies may also qualify.
Yes, if you have economic nexus – meaning you exceed $100,000 in Colorado sales annually, you must register and collect Colorado sales tax.
Yes, if you have economic nexus – meaning you exceed $100,000 in Colorado sales annually, you must register and collect Colorado sales tax.
Late registration can result in penalties and interest charges. Register promptly to avoid compliance issues and potential fines.
Late registration can result in penalties and interest charges. Register promptly to avoid compliance issues and potential fines.
Yes, local jurisdictions can adjust rates quarterly. Stay current with rate changes to ensure accurate tax collection and avoid under-collecting.
Yes, local jurisdictions can adjust rates quarterly. Stay current with rate changes to ensure accurate tax collection and avoid under-collecting.
More tools for your business
Gross margin calculator
Enter your costs and revenue to discover your gross margin – and the potential success of your business.
Cash flow calculator
Work out how much money is flowing in and out of your business, including taxes.
Free invoice template
Create professional invoices quickly with our template, including all details and payment terms.
Get one month free
Sign up to any Xero plan, and we will give you the first month free.
Disclaimer
Xero does not provide accounting, tax, business or legal advice. This calculator has been provided for information purposes only. You should consult your own professional advisors for advice directly relating to your business.