State Sales Tax Rate2.90%
One of the lowest state rates in the US
Average Local Rate4.82%
City, county, and special district taxes combined
Avg Combined Rate7.72%
Average combined rate across Colorado
Last ReviewedJune 2026
Verified against CO Dept of Revenue
How to Use the Colorado Sales Tax Calculator
Use the Colorado sales tax calculator when you know the purchase price and want to estimate the sales tax and final total. Enter the pre-tax price, then use the default Colorado average combined rate if you only need a quick statewide estimate.
For a more accurate result, replace the default rate with the correct city or address-level rate. This matters in Colorado because the 2.90% state rate is only the starting point. Cities, counties, special districts, transportation districts, cultural districts, and home-rule jurisdictions can add additional taxes.
For ecommerce, shipped orders, local delivery, invoices, marketplace sales, or business compliance, use the exact delivery address instead of only the ZIP code. Colorado rates can vary inside the same metro area, and home-rule cities may require separate registration or filing outside the normal state return process.
How Colorado Sales Tax Works
Colorado has one of the lowest state sales tax rates in the country at 2.90%, but the final checkout rate is often much higher because local taxes can be layered on top of the state rate. A Colorado transaction can include state tax, county tax, city tax, special district tax, RTD tax, cultural district tax, or other local taxes depending on where the sale is made or delivered.
Colorado is also a home-rule state. This means some cities administer and collect their own local sales tax instead of having the Colorado Department of Revenue collect it for them. Denver, Aurora, Boulder, Colorado Springs, and other home-rule or self-collected jurisdictions can create extra complexity for sellers because rate lookup, filing, taxability, exemptions, and registration may not be identical across all locations.
For delivered sales, Colorado generally uses destination-style sourcing. If taxable goods are delivered to a Colorado customer, the seller should use the tax rate for the location where the buyer receives the item. This is why a shipment delivered to Denver may not use the same rate as a shipment delivered to Colorado Springs, Aurora, Fort Collins, Lakewood, Boulder, Pueblo, or Greeley.
Colorado also has a special Retail Delivery Fee on many retail sales of taxable tangible personal property delivered by motor vehicle to a Colorado location. This fee is not the same as sales tax, but it matters for ecommerce sellers, local delivery, and invoices.
For consumers, the calculator gives a quick estimate. For businesses, Colorado rate verification should be done with the Colorado Department of Revenue Sales Tax Lookup Tool, DR 1002, SUTS, and the applicable home-rule city guidance.
Colorado Sales Tax Formula
Sales Tax = Taxable Price × (Combined Rate ÷ 100)
Total Price = Taxable Price + Sales Tax
Reverse Price = Total Price ÷ (1 + Combined Rate ÷ 100)
Use the first formula when you know the taxable price and need to estimate Colorado sales tax. Use the second formula when you want the final checkout total after tax. Use the reverse formula when a Colorado receipt already includes tax and you need to separate the original pre-tax price from the tax amount.
Colorado Sales Tax Examples
Example 1: $100 purchase in Colorado
Using Colorado's average combined rate of 7.72%:
Estimated combined rate: 7.72%
Sales tax: $100.00 × 0.0772 = $7.72
Final total: $100.00 + $7.72 = $107.72
Example 2: $250 purchase in Denver, Colorado
Using a common Denver combined rate of 9.15%:
Sales tax: $250.00 × 0.0915 = $22.88
Final total: $250.00 + $22.88 = $272.88
This example shows why Colorado users should not use only the 2.90% state rate. In Denver, city and district taxes can add more than 6 percentage points to the final rate.
Example 3: Reverse sales tax from a Colorado receipt
Suppose your Colorado receipt total is $107.72 and the combined rate was 7.72%:
Pre-tax price: $107.72 ÷ 1.0772 = $100.00
Sales tax paid: $107.72 − $100.00 = $7.72
Use this reverse calculation when the receipt shows only the final total and you need to estimate the taxable price before Colorado sales tax.
Major Colorado City Sales Tax Rates
Before deployment, verify every city rate against the Colorado Department of Revenue DR 1002, the Colorado Sales Tax Lookup Tool, and the relevant home-rule city tax office. Colorado local rates can change on January 1 or July 1, and some home-rule cities publish their own rules separately.
Why Sales Tax Varies in Colorado
Colorado sales tax varies because the state rate is only 2.90%, but local governments and districts can add several additional tax layers. A sale may include state tax, county tax, city tax, transportation district tax, cultural district tax, public safety tax, lodging-related tax, or other special local taxes.
Colorado is also difficult because many cities are home-rule or self-collected. A state-collected jurisdiction may be handled through the Colorado Department of Revenue, while a self-collected home-rule city may require separate registration, filing, and local tax interpretation.
For shoppers, the practical point is simple: the tax rate depends on the exact location. For businesses, the point is more serious: ZIP-code estimates can be wrong. Use address-level lookup, confirm whether the jurisdiction is state-collected or self-collected, and check whether the product or service is taxable in that specific location.
What Is Taxable in Colorado
| Item / Category | Taxable? | Colorado-Specific Note |
|---|
| General tangible goods | Usually taxable | Colorado taxes retail sales of tangible personal property unless a specific exemption applies. |
| Groceries / food for home consumption | Generally exempt at state level | Food for domestic home consumption is generally exempt from Colorado state sales tax, but local rules may vary. |
| Prepared food / restaurant meals | Taxable | Prepared food and drink sold by restaurants, bars, and similar establishments are taxable. |
| Clothing | Usually taxable | Colorado does not have a broad statewide clothing exemption for normal retail purchases. |
| Digital goods | Often taxable | Colorado treats many digital goods as tangible personal property when delivered or stored digitally. |
| SaaS / software | Depends | Colorado has specific computer software rules. SaaS and hosted software can require careful review. |
| Shipping / delivery | Depends | Delivery charges and the Colorado Retail Delivery Fee require separate review. Taxable retail deliveries by motor vehicle may trigger the Retail Delivery Fee. |
| Services | Usually not taxable unless specifically taxed | Many services are not taxable, but selected services and mixed transactions can be taxable. |
| Lodging / accommodations | Taxable | Rooms and accommodations are subject to Colorado sales tax and may have local lodging taxes. |
| Vehicles | Special rules apply | Motor vehicles can involve state sales tax, local use tax, registration-location rules, and county clerk collection. |
| Business purchases / resale | Exempt with proper documentation | Wholesale/resale purchases can be exempt when proper resale documentation is maintained. |
Online Purchases and Remote Sellers in Colorado
Online purchases delivered into Colorado may be subject to Colorado state sales tax, applicable state-administered local taxes, home-rule city taxes, and special district taxes. The correct rate usually depends on the customer's delivery address.
Remote sellers with no physical location in Colorado are generally exempt from Colorado sales tax licensing and collection requirements if their Colorado retail sales are less than $100,000 in both the current and previous calendar years. Once a remote seller exceeds $100,000 in Colorado retail sales, it may need to obtain a Colorado sales tax license and begin collecting Colorado sales tax.
Colorado's home-rule cities can add complexity. Even if a seller is registered with the state, some self-collected home-rule cities may have separate requirements. The Colorado Sales & Use Tax System, or SUTS, helps simplify filing for state, state-collected, and participating home-rule jurisdictions, but not every jurisdiction is identical.
Plain-English example: if an ecommerce seller ships taxable goods to customers in Denver, Aurora, Boulder, Colorado Springs, and Fort Collins, it should not use one statewide rate. It should calculate tax by delivery address, check whether the city is home-rule or state-collected, apply the Retail Delivery Fee when required, and keep records of how each rate was determined.
Colorado Retail Delivery Fee
Colorado has a Retail Delivery Fee that applies to many retail sales of taxable tangible personal property delivered by motor vehicle to a Colorado location. This fee is separate from sales tax.
The fee can apply even if the seller uses a third-party carrier or shipping company. If the order contains at least one item that is subject to Colorado sales tax and the delivery is made by motor vehicle to a Colorado address, the Retail Delivery Fee may apply.
The Retail Delivery Fee is especially important for ecommerce sellers, furniture stores, local delivery businesses, subscription box sellers, marketplace sellers, and retailers shipping taxable goods into Colorado. It does not apply to every transaction, and it should not be treated as a normal percentage-based sales tax.
Businesses should verify the current Retail Delivery Fee amount and reporting rules with the Colorado Department of Revenue before deployment or filing.
Common Colorado Sales Tax Mistakes
- Using only the 2.90% state rate and ignoring city, county, and district taxes.
- Assuming Denver, Aurora, Boulder, Colorado Springs, Fort Collins, and Lakewood use the same rate.
- Relying only on ZIP codes instead of address-level lookup.
- Forgetting that Colorado has home-rule, self-collected cities.
- Assuming the Colorado Department of Revenue administers every local city tax.
- Ignoring destination sourcing for delivered sales.
- Forgetting the Colorado Retail Delivery Fee on taxable retail deliveries by motor vehicle.
- Treating groceries, software, SaaS, digital goods, or delivery charges the same in every city.
- Failing to update rates after January 1 or July 1 local-rate changes.
Colorado Sales Tax for Businesses
Businesses selling taxable goods or services in Colorado may need a Colorado sales tax license, local registrations, home-rule city accounts, SUTS access, and a process for address-level rate lookup.
The first business question is whether the sale is taxable. Colorado generally taxes retail sales of tangible personal property, prepared food and drink, certain services, and accommodations. The next question is where the sale is sourced. For delivered sales, the rate generally follows the location where the buyer receives the item.
Colorado businesses should also determine whether they are dealing with a state-collected jurisdiction or a self-collected home-rule city. State-collected taxes can generally be filed through Colorado systems, while some home-rule cities may require separate filing or local interpretation.
Remote sellers should monitor the $100,000 Colorado retail sales threshold. Marketplace sellers should verify whether the marketplace facilitator is collecting on their behalf and whether any direct sales create a separate obligation.
Keep records of taxable sales, exempt sales, resale certificates, delivery addresses, jurisdiction codes, rate lookups, home-rule filings, Retail Delivery Fee transactions, marketplace sales, and customer invoices. Colorado is one of the states where clean sales-tax records matter because the rate, filing destination, and taxability rules can all vary by location.
This calculator is useful for estimates, but businesses should verify exact rates and obligations through the Colorado Department of Revenue, DR 1002, the Sales Tax Lookup Tool, SUTS, home-rule city tax offices, or a qualified tax professional.
Official Colorado Sales Tax Sources
Use these sources to verify Colorado sales tax data before deployment:
- Colorado Department of Revenue — Sales Tax Guide
- Colorado Department of Revenue — DR 1002 Colorado Sales/Use Tax Rates
- Colorado Sales Tax Lookup Tool
- Colorado Department of Revenue — Sales & Use Tax System (SUTS)
- Colorado Department of Revenue — Out-of-State Businesses
- Colorado Department of Revenue — Retail Delivery Fee
- Colorado home-rule city tax offices
- Tax Foundation — 2026 State and Local Sales Tax Rates
Last reviewed: June 2026. Rates and rules can change. Verify with the Colorado Department of Revenue and the relevant home-rule city before filing, remitting, or making compliance decisions.
