Colorado sales tax is a tax on most goods you buy, set at 2.9% by the state, plus local taxes that vary by county and city

When you buy something in Colorado, you pay the state sales tax of 2.9% on top of the price. But that is not the whole story. Most counties and cities add their own local sales tax on top of the state rate, so your actual tax rate depends on where you live or shop. A purchase in Denver carries a different total tax than the same purchase in Boulder or a small town in rural Colorado.

The combined rate you see at checkout is the sum of all these layers. For example, Denver's combined rate is 10.25% (state 2.9% plus local 7.35%), while some rural areas may be closer to 4% or 5%. The store charges you the full combined rate based on the location of the sale.

Key Takeaways

  • Colorado's state sales tax is 2.9%, but your total tax rate also includes county and city taxes that range from less than 1% to over 7% depending on location.
  • Sales tax applies to most goods, but not to groceries, prescription medications, or most services.
  • You pay sales tax at the point of sale for in-store purchases, and online retailers must collect it if they have a physical presence in Colorado.
  • The tax you owe is based on where the sale takes place, not where you live, so buying in a different city can change your total tax.

What is taxed and what is not

Colorado taxes most tangible goods—clothing, electronics, furniture, household items, and similar products. However, several categories are exempt. Groceries and food for home consumption are not taxed. Prescription medications and medical devices are also exempt. Most services—haircuts, plumbing, car repairs, consulting—do not carry sales tax, though some specific services like hotel stays and prepared food do.

The distinction between a good and a service matters. If you buy a can of paint, you pay sales tax. If you hire a painter to explore it, you typically do not pay sales tax on their labor, though you may pay tax on the paint itself if they charge it separately. When in doubt, ask the retailer or check the Colorado Department of Revenue website for specific items.

How local taxes stack on top of the state rate

Colorado gives counties and cities the power to set their own sales tax rates. The state collects 2.9%, and then each locality adds its own percentage. A county might add 1%, and a city within that county might add another 2% or 3%. These stack together, not replace each other.

This means the tax rate varies significantly across the state. Denver, Boulder, and Colorado Springs each have different combined rates. Even neighboring towns can differ. Before making a large purchase, you can look up the exact rate for your location on the Colorado Department of Revenue website or ask the retailer what rate applies to your address.

Sales tax on online and mail orders

If you order from an online retailer that has a physical location, warehouse, or employees in Colorado, that retailer must collect and send Colorado sales tax to the state. This includes major retailers like Amazon, which collects tax on most items shipped to Colorado addresses.

If you order from a retailer with no Colorado presence, they may not collect tax at the time of purchase. However, Colorado law requires you to pay use tax—a tax on items you bring into the state or have shipped to you from out of state. In practice, most individuals do not pay use tax on personal purchases, though it is technically owed. Businesses are more likely to be audited on use tax obligations.

Who collects the tax and where it goes

The retailer collects sales tax from you at the point of sale and holds it temporarily. The retailer then sends the tax to the Colorado Department of Revenue, which distributes it to the state and to the counties and cities that imposed it. This happens monthly or quarterly depending on the retailer's size and filing schedule.

You do not send sales tax directly to the government—the business does. Your role is to pay the amount shown at checkout. The retailer is responsible for filing and remitting the correct amount to the state.

Special situations and exemptions

Certain organizations and purchases are exempt from sales tax. Nonprofit organizations registered with the state can often buy goods without paying tax. Resellers—businesses that buy goods to resell them—do not pay sales tax on their inventory purchases if they have a resale certificate. Agricultural equipment and certain industrial machinery may also be exempt.

If you think a purchase should be exempt, ask the retailer whether they can explore an exemption. You may need to provide documentation, such as a resale certificate or proof of nonprofit status. The Colorado Department of Revenue publishes a detailed list of exemptions on their website.

How to find your local sales tax rate

The easiest way to find your exact sales tax rate is to visit the Colorado Department of Revenue website and use their sales tax rate lookup tool. You enter your address or city, and it shows you the combined state and local rate for that location. You can also call the Department of Revenue directly, or ask a local retailer what rate applies to your area.

Keep in mind that rates can change when local governments vote to adjust their tax. If you checked your rate a year or two ago, it may have shifted. The lookup tool always shows the current rate.

Frequently Asked Questions

Do I pay sales tax on groceries in Colorado?

No. Food and groceries for home consumption are exempt from Colorado sales tax. This includes items like bread, milk, vegetables, and meat. However, prepared food—restaurant meals, deli items, and hot food—is taxed.

What is the difference between sales tax and use tax?

Sales tax is charged when you buy something in Colorado. Use tax is owed when you bring goods into Colorado from out of state or have them shipped to you from a retailer with no Colorado presence. Both are the same rate; use tax straightforward applies to purchases made outside the state.

Why does the sales tax rate differ between cities?

Colorado allows each county and city to set its own local sales tax rate on top of the 2.9% state rate. This means Denver, Boulder, and a small town each decide their own local percentage, resulting in different total rates across the state.

Do I have to pay sales tax if I buy something online from out of state?

If the retailer has no physical presence in Colorado, they are not required to collect sales tax. However, you are technically required to pay use tax on that purchase. Most individuals do not, but businesses may be audited on use tax obligations.

Are prescription medications taxed in Colorado?

No. Prescription medications and most medical devices are exempt from Colorado sales tax. Over-the-counter medications and health products like vitamins are taxed as regular goods.