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Colorado Sales Tax Calculator and Remote Seller Nexus Check (2.9%)

What does this come to under the current IRS rules?

Sales tax on a sale at the 2.9% statewide rate plus your local rate, and whether your sales into Colorado pass the $100,000 economic nexus threshold.

  • Runs in your browser
  • Nothing stored or sent
  • Free, no sign-up
Your figures
Example figuresIllustrative only. Type over them with your own.
Sales tax due
$29.00
Tax on the sale in Colorado
All results
MeasureResult
Statewide base rate2.9%
Combined rate2.9%
State tax$29.00
Local tax$0.00
Sales tax due$29.00
Total with tax$1,029.00
Sales counted toward the threshold$90,000
Sales test (more than $100,000)Not met
Economic nexus reached
Below the Colorado threshold
No
How this was worked out
Work shownrecomputed as you type
Sales tax = sale x (2.9% + local rate)
Nexus when counted sales are more than $100,000 in the current or previous calendar year
Counted sales = direct sales only

Illustrative arithmetic on the figures you enter. Check the result against your firm's methodology before relying on it.

The formulas

  • Sales tax = sale x (2.9% + local rate)
  • Nexus when counted sales are more than $100,000 in the current or previous calendar year
  • Counted sales = direct sales only

How it works

Figures current as of November 2026.

The state rate is 2.9 percent. The tool multiplies the sale amount by the statewide base rate plus the local rate you enter (state-collected county, city and special district taxes, plus any home-rule city tax) and shows the state and local parts separately. The local rate depends on where the goods are delivered.

A seller with no physical presence in Colorado must register and collect once it has more than $100,000 of retail sales into Colorado, taxable or not in the current or previous calendar year. Sales made through a marketplace facilitator do not count toward your own Colorado threshold; only your direct sales count.

A seller with a physical presence in Colorado, such as staff, an office or inventory, must collect regardless of the threshold. The tool does not decide whether a product is taxable or exempt; enter the taxable price.

Illustrative figures only. Check the result against your firm's methodology before relying on it.

Common questions

What is the Colorado sales tax rate?

The state rate is 2.9 percent. Local rates are added on top by delivery address.

What is the Colorado economic nexus threshold?

More than $100,000 of retail sales into Colorado, taxable or not in the current or previous calendar year.

Do marketplace sales count toward the Colorado threshold?

Sales made through a marketplace facilitator do not count toward your own Colorado threshold; only your direct sales count.

Sources

Runs in your browser. The figures you type are not sent to CORAA or stored. Check the result against your firm's methodology before relying on it.

Related audit calculators

CalculatorConnecticut Sales Tax Calculator and Remote Seller Nexus Check (6.35%)Sales tax on a sale at the 6.35% statewide rate plus your local rate, and whether your sales into Connecticut pass the $100,000 and 200-transaction economic nexus threshold.CalculatorDistrict of Columbia Sales Tax Calculator and Remote Seller Nexus Check (6%)Sales tax on a sale at the 6% statewide rate plus your local rate, and whether your sales into District of Columbia pass the $100,000 or 200-transaction economic nexus threshold.CalculatorFlorida Sales Tax Calculator and Remote Seller Nexus Check (6%)Sales tax on a sale at the 6% statewide rate plus your local rate, and whether your sales into Florida pass the $100,000 economic nexus threshold.
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