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The Ultimate Guide To Colorado Sales Tax

Welcome to our handy guide on Colorado sales tax. We'll walk you through everything you need to know, from the specific sales tax rates in different counties and cities across Colorado to answering some of the most common questions. Plus, we'll guide you on how to efficiently collect and file your sales tax in Colorado.

Sales Tax Rate


Local Rate?



Colorado Department of Revenue

Sales Threshold


Tax Line

(303) 238-7378

Transactions Threshold


What is Nexus?

You'll need to collect sales tax in Colorado if you have nexus there. There are two main ways that sellers can be tied to a state when it comes to nexus: physical, or economic.

Physical nexus means having enough tangible presence, or activity in a state to merit paying sales tax in that state.

Economic nexus means passing a states' economic threshold, for total revenue, or the number of transactions in that state.

Calculating Nexus in Colorado

Unraveling Sales Tax Nexus in Colorado

Let's chat about something super important: understanding nexus. Nexus is basically your business's connection with a state that nudges you to collect and pay taxes there. If you're scratching your head wondering, "Do I have a nexus in Colorado?" you're in the right place!

Let's break down the five kinds of nexus that might be relevant to you: Physical, Economic, Affiliate, Click-Through, and Marketplace. Knowing these is key to figuring out your sales tax duties in the Centennial State.
  1. Physical Nexus: This is a common scenario. If your business has a physical spot in Colorado - like a store, warehouse, or even a team member there - bingo, you've got a physical nexus. Even popping into Colorado for trade shows or events counts.
  2. Economic Nexus: Here's where things get digital. If you're an out-of-stater ringing in over $100,000 in sales of goods or services to folks in Colorado within the current or last year, you've hit the economic nexus. Yep, this includes those online sales to Colorado customers.
  3. Affiliate Nexus: This one's about partnerships. If you're linked to a Colorado entity or individual who's helping sell your stuff (think affiliate marketing), you might have an affiliate nexus. It's all about those collaborative efforts to push your products or services.
  4. Click-Through Nexus: Good news! Colorado doesn't have laws for click-through nexus at the moment.
  5. Marketplace Nexus: Selling through online giants like Amazon, eBay, or Etsy? In Colorado, these marketplace facilitators handle the sales tax collection and remitting for you. Although they take care of the taxes, it's still good to know about this nexus, as it can influence other tax aspects.

Colorado Sales Tax License

Let's talk about getting your sales tax license. This is super important for staying on the right side of tax laws, especially if your business has a nexus in Colorado. This license is your ticket to legally collecting sales tax from your customers on the goods and services you sell. Let’s dive into the registration details, including what you'll need, costs, the Federal Tax ID number or EIN, and extra registrations you might need with other Colorado agencies.

Getting Your Sales Tax License in Colorado

Colorado offers five types of sales tax licenses. Let’s check them out so you can pick the right one for your business:
  1. Standard Retail License: This one’s for you if you’re handling both retail and wholesale sales. It covers everything, so no need for separate licenses.
  2. Wholesale License: Just for the wholesale side of things.
  3. Single Special Event License: Perfect for a one-off event with three or more vendors. It’s valid for two years and is free for standard license holders.
  4. Multiple Special Event License: Attending several events? This is your go-to license, valid for two years. Remember, each event needs at least three vendors.
  5. Mobile Vendors: If you're selling from a truck or vehicle, get a license for your main office and add jurisdiction "sites" at no extra cost.
Most licenses in Colorado are good for two years, expiring at the end of every odd-numbered year.
Did you know logo

Coffee cups are taxable, but the straws and sleeves are not. Colorado takes its coffee with a side of tax confusion.

Sales Tax Registration in Colorado

Registering Your Business

One Location: Use MyBizColorado or the CR 0100 form for retail and wholesale sales at a single location.
Multiple Locations: Use the CR 0100 form for multiple business spots.

Colorado, the Home Rule State

In a home rule state like Colorado, cities or counties can have their own tax rules. This means they can set their own rates or taxability rules, adding a twist to sales tax compliance. You’ll need to keep up not just with state laws but also with the laws of each local jurisdiction where your business operates.

Home Rule Cities in Colorado

If you're doing business in any of these home rule cities, remember to apply for a local license and manage your sales tax separately from the Colorado state return:

Arvada, Aspen, Aurora, Avon, Black Hawk, Boulder, Breckenridge, Brighton, Broomfield, Carbondale, Castle Pines, Castle Rock, Centennial, Central City, Cherry Hills Village, Colorado Springs, Commerce City, Cortez, Craig, Crested Butte, Dacono, Delta, Denver, Durango, Edgewater, Englewood, Evans, Federal Heights, Fort Collins, Frisco, Glendale, Glenwood Springs, Golden, Grand Junction, Greeley, Greenwood Village, Gunnison, Gypsum, Lafayette, Lakewood, Lamar, Littleton, Lone Tree, Longmont, Louisville, Montrose, Mt. Crested Butte, Mountain Village, Northglenn, Parker, Pueblo, Ridgway, Rifle, Sheridan, Silverthorne, Snowmass Village, Steamboat Springs, Sterling, Telluride, Thornton, Timnath, Vail, Westminster, Wheat Ridge, Windsor, Winter Park, and Woodland Park.

Colorado Sales Tax Registration Checklist

Here's a checklist of info you'll need before diving into the registration process:
  • Standard Retail License: This one’s for you if you’re handling both retail and wholesale sales. It covers everything, so no need for separate licenses.
  • Wholesale License: Just for the wholesale side of things.
  • Single Special Event License: Perfect for a one-off event with three or more vendors. It’s valid for two years and is free for standard license holders.
  • Multiple Special Event License: Attending several events? This is your go-to license, valid for two years. Remember, each event needs at least three vendors.
  • Mobile Vendors: If you're selling from a truck or vehicle, get a license for your main office and add jurisdiction "sites" at no extra cost.
Got all that? Great! Now you can head over to MyBizColorado and get your sales tax license sorted.

Costs for Your Colorado Sales Tax License

License Fees: It's $16 for two years, and this fee is adjusted every 6 months. Check out page 1 of the CR-100-AP form for more details.
Deposit for New Accounts: There’s a $50 deposit with the Colorado Sales Tax Application (CR 0100). But don’t worry, it gets refunded after you collect and remit $50 in state sales taxes.

Do You Need an EIN?

Yep, most likely! A Federal Tax ID Number or EIN is typically required for your sales tax license in Colorado. Sole proprietors might be able to use their social security number instead.

Other Colorado Agencies You Might Need to Register With

Since every business is unique, it's a good idea to check in with the Colorado Department of Revenue to see where else you might need to register. Some common ones include:
  • Colorado Secretary of State
  • Colorado State Department of Labor
  • Colorado Liquor and Tobacco Enforcement
Remember, this list isn’t all-inclusive, so be sure to check for any specific requirements related to your industry.

Guide to collecting sales tax in Colorado

At the Register

Ring It Up: When you make a sale, tack on that sales tax. If your shop has a physical location, this happens at the register. Selling online? Most e-commerce platforms are smart cookies and calculate it automatically.

Where’s the Tax Based?

Destination Rules: In Colorado, the sales tax is all about where your customer is, not your business location. So, if you're sending goodies to customers in Colorado, charge sales tax based on their address. This means considering the whole shebang: state, county, city, and any special district taxes.Face-to-Face Sales: If you’re making a sale in person, just use the tax rate for where the sale happens. Easy peasy!

Current Tax Rates

The Basic Rate: Colorado’s state sales tax rate sits at a cool 2.9%. But remember, local areas might have their own rates to add on top. Need to find the exact rate? Colorado's Department of Revenue has this super helpful tool right here to help you out.

What’s Taxable?

Goods and Services: Most physical items like furniture and electronics, plus some services (think hotel stays and phone plans), are taxable.SaaS – It’s a Maybe: The taxability of Software-as-a-Service (SaaS) can be a head-scratcher in Colorado. It's best to double-check with the state or maybe get a Private Letter Ruling for a clear answer.

Special City Rules for SaaS

Tax Rules Vary in Cities: In some Colorado cities like Arvada, Boulder, and Denver, SaaS gets taxed. Keep this in mind if you're operating in these areas.

What’s Not Taxed?

Exemptions to Know: Colorado gives a break on sales tax for most food items, residential energy use, medical stuff, certain vehicles, and even sales related to schools.

Handling Tax Exemptions

Who’s Exempt: Charitable organizations and government bodies typically don’t have to pay sales tax.
Dealing with Exempt Sales: Selling to someone who’s tax-exempt? Just collect a Colorado exemption certificate and file it away safely. It’s on them to provide it, but it’s your proof if the tax folks come knocking. Misplaced a certificate? No sweat – Colorado's Department of Revenue has online services to save the day.
Did you know logo

If you provide eating utensils in Colorado, you’re subject to sales tax. It’s definitely a taxing dining experience.

Steps for Filing a Colorado Sales Tax Return

When to File and Pay

  • Monthly: If your monthly state tax liability is $300 or more, you'll file every month. These returns are due by the 20th day of the month following your reporting period.
  • Quarterly: Making between $15 and $300 a month? You're a quarterly filer, with returns due the 20th day after the quarter ends.
  • Annually: If your monthly tax is under $15, file once a year by January 20th.

Weekend or Holiday Due Dates

Got a due date falling on a weekend or holiday? No sweat! It extends to the next business day.

Filing Your Colorado Sales Tax Return

Hop online and use the Colorado Department of Revenue's Revenue Online service. It’s a one-stop shop for filing returns, making payments, and managing your sales tax account.

Missing a Filing

If you don't file a return, the Department of Revenue might estimate your tax based on available info. Better to file yourself to avoid surprises!

Late Filing Penalties

A tad late? There’s a penalty of 10% of the unpaid tax, plus 0.5% per month (up to 18% max). Extra penalties can apply for negligence or fraud.

Interest on Late Payments

Any late payments accrue interest from the original due date until payment. The interest rate varies by year.

On-Time Filing Discount

Good news! Colorado offers a nifty discount of 3.33% of the sales tax collected for timely filers who pay in full. It’s a little thank you for your hard work in collecting taxes.

Sales Tax Holidays

As of now, Colorado doesn’t have sales tax holidays.

Streamlined Sales Tax State?

Nope, Colorado isn’t a part of the Streamlined Sales and Use Tax Agreement (SSUTA). This means the state has its own unique sales tax laws and regulations, so it's good to stay informed.

Colorado's Thank-You Discount for Merchants

Colorado's got a sweet deal for businesses like yours. When you collect sales tax, the state says thanks by letting you keep 3.33% of it. Just make sure to file your return and pay up on time. It's a little pat on the back for helping out with tax collection.

Sales Tax Holidays in Colorado

Looking forward to a sales tax holiday in Colorado? Well, hold your horses! Colorado doesn't currently offer sales tax holidays. Maybe in the future, who knows?

Is Colorado Streamlined with Sales Tax?

In the world of sales tax, some states have joined forces under the Streamlined Sales and Use Tax Agreement (SSUTA) to make things simpler. But Colorado marches to its own drum and isn't part of this group. What does this mean for you? Well, you'll need to keep up with Colorado's specific sales tax rules and regulations, as they don't follow the streamlined system.

Got an Audit Notice? Don't Sweat It!

If the Colorado Department of Revenue sends you an audit notice, take a deep breath – it's all part of being in business. Here's what to do:
  1. Read the Notice Carefully: It's packed with info about what the audit's about and what period it covers.
  2. Gather Your Records: Line up all those sales receipts, exemption certificates, and other important documents for the period in question.
  3. Talk to a Pro: A tax expert or lawyer can be your best friend here. They'll explain the ins and outs and can even talk to the tax folks for you.
  4. Respond Promptly: Ignoring the notice won't make it vanish. If you need time to get your ducks in a row, just ask for an extension.
  5. Work with the Auditor: Be friendly and cooperative with the auditor. It's okay to ask questions and get clarifications – they're just doing their job.

The Kintsugi White-Glove Promise

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Kintsugi’s in-house sales tax experts use over 300,000 business rules to stay up-to-date on regulatory changes.


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Kintsugi has your back in case of audits and will fully cover all penalties due to filing inaccuracies.


Top 5 Tips for Filing Sales Tax in Colorado

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