Denver Business Licenses in 2026
Three separate systems, three separate agencies. Here's how to tell which ones apply to your business.
Three separate systems, three separate agencies. Here’s how to tell which ones apply to your business.
Operating a business in Denver without understanding the difference between a city license and a state license is one of the most common compliance failures new business owners make here — and it’s not entirely their fault. Most guides to Colorado business licensing treat Denver as just another Colorado city. It isn’t. Denver is a home-rule municipality, meaning it runs its own tax collection and licensing systems independently of the state. That one fact changes nearly everything about what you’re required to register for, with whom, and by when.
This guide covers the full stack: the Denver general business license, the Denver contractor’s business license, the Colorado sales tax license, the Denver sales tax registration (which is separate from the state license, and yes, that matters enormously), and the home occupation permit for anyone running a business from a residential address. For each one: who needs it, what it costs, when it expires, and what happens if you don’t have it.
Do I Need a Denver General Business License?
Almost everyone does.
If you’re conducting business within Denver city limits — selling goods, offering services, running clients out of your home — you need a Denver general business license. This covers the vast majority of business activity inside the city, including businesses that don’t sell anything tangible.
The license comes from the Denver Department of Excise and Licenses. You apply through the MyLicense Office portal at denvergov.org/business. Most applications are completed online, though some license categories require an in-person inspection or additional documentation before the license issues. Current fee: roughly $50–$75. Verify the exact figure at denvergov.org before filing — fees are set by ordinance and do change.
One detail that trips people up: Denver business licenses renew on the anniversary of your issuance date, not January 1. If you licensed in April, your renewal is due in April, not at year-end when you’re buried in tax prep. Denver will not send elaborate reminders. Miss your renewal date and you’re operating without a valid license, which carries real legal exposure regardless of whether your taxes are current. The city treats those as separate questions.
What Does a Denver Contractor’s Business License Cover?
The Denver Contractor’s Business License is a separate license track — same department (Excise and Licenses), different application, different fee schedule, different requirements. It covers general contractors performing construction work within city limits. Fees run roughly $100–$300 depending on license classification. Verify your specific category directly with Excise and Licenses, because the classifications are granular and the differences matter.
Here’s where it gets more complicated: trade-specific licenses — electrician, plumber, mechanical contractor — come from Denver Community Planning and Development, which is an entirely different city agency. A licensed electrician working in Denver has to deal with CPD for their trade license regardless of what they’ve already obtained from Excise and Licenses. Two agencies, separate systems, separate applications.
Whether the contractor’s license substitutes for or stacks on top of the general business license depends on your specific classification. Some contractor license types satisfy the general business license requirement; others require both. Worth a direct call to Excise and Licenses at (720) 865-2740 before you file anything. Filing under the wrong assumption can leave a gap in your compliance that you won’t discover until someone checks. Most Denver contractors end up dealing with at least two city agencies before they pull their first permit.
Do I Need a Colorado Sales Tax License If I Only Sell Services?
Probably not. But read the exceptions before you assume.
Colorado doesn’t impose sales tax broadly on services. A management consultant, a physical therapist, a graphic designer, a dog walker — none of these businesses need a Colorado sales tax license based solely on the services they provide. The Colorado Department of Revenue issues sales tax licenses for businesses selling taxable tangible personal property or specific taxable services, and most pure service businesses fall outside that requirement.
The exceptions aren’t obscure. Repair and installation services attached to tangible personal property — an appliance repair shop, for example — generate taxable transactions. Certain electronically delivered software triggers sales tax. Lodging and short-term rentals bring both state and Denver tax obligations. Catering straddles food and service in a way that lands it in taxable territory, regardless of how the business owner categorizes it.
If any of that applies to you, register. The license comes from MyLicense.Colorado.gov and costs roughly $16. Unlike city licenses, it has no expiration date — it stays active as long as you’re filing returns. Stop filing and CDOR can revoke it.
The one that catches service businesses off guard: if you sell any physical goods alongside your services — branded merchandise, supplies, a physical product bundled into a consulting engagement — even minor retail components trigger the registration requirement. Better to have it and not need it than to sell a $40 item without one and create a back-tax exposure.
I Sell Products in Denver — Do I Need Both a State License and a Denver Registration?
Yes. And this is the section most guides skip entirely.
Denver home-rules its own sales tax. The state’s system and Denver’s system are completely separate. When you register with the Colorado Department of Revenue, that registration does not cover Denver city sales tax. Denver collects its own sales tax, administers its own returns, and requires its own registration through the Denver Treasury Division — not through Excise and Licenses. Many business owners complete the state registration, assume they’re done, and aren’t.
For a Denver business selling taxable goods or services, full compliance means three separate registrations with three separate agencies:
- Denver general business license — Denver Excise and Licenses, via denvergov.org/business
- Colorado sales tax license — Colorado Department of Revenue, via MyLicense.Colorado.gov
- Denver sales tax registration — Denver Treasury Division, via the Denver eBiz Tax portal
Completing two of three doesn’t satisfy the third. No exceptions. The combined Denver sales tax rate runs around 8.81% — that’s the Colorado state rate, the RTD rate, the cultural facilities district rate, and Denver’s own city rate layered together. Verify the current composite at denvergov.org/Treasury before filing, since component rates adjust periodically. Once registered, you file Denver returns through the eBiz Tax portal. The Denver registration fee requires direct verification with Treasury; it’s one of the figures that changes and isn’t always prominently posted.
Fee and Renewal Summary
| Registration | Issuing Agency | Current Fee | Renewal |
|---|---|---|---|
| Denver General Business License | Denver Excise and Licenses | ~$50–$75 (verify) | Annual, on issuance anniversary |
| Denver Contractor’s Business License | Denver Excise and Licenses | ~$100–$300 (verify by category) | Annual, on issuance anniversary |
| Colorado Sales Tax License | Colorado Dept. of Revenue | ~$16 (verify) | No expiration while returns are filed |
| Denver Sales Tax Registration | Denver Treasury Division | Verify directly | No expiration while filing |
| Home Occupation Permit | Denver Community Planning and Development | ~$25–$50 (verify) | Confirm renewal cycle with CPD |
A few things the table doesn’t capture: the Colorado sales tax license doesn’t expire on a calendar date, but CDOR treats non-filing as grounds for revocation. Denver’s city licenses have hard annual renewal dates. Operating on an expired city license is a compliance violation even if your taxes are paid — Denver doesn’t treat those as the same thing, and neither should you. The home occupation permit renewal cycle can be tied to zoning status rather than a calendar date, so confirm that with CPD when you apply.
Verify all fees against current agency schedules before filing. These are set by ordinance and regulation and do change.
I Run My Business Out of My Home — Do I Need Anything Else?
Yes. The home occupation permit is a separate, additional requirement — not a substitute for the general business license.
Under Denver Zoning Code Article 11, any business operated from a residentially zoned address must hold a home occupation permit, issued by Denver Community Planning and Development. Residential zoning carries specific use restrictions. Running a business without the permit means you’re in violation of those restrictions, regardless of whether your business license is current.
The restrictions are specific and worth knowing before you apply. Clients and customers cannot come to your home for business purposes — if people are showing up at your address, you’re out of compliance. No employees may report to or work from your residential address. Exterior signage is prohibited. Business use must remain secondary to residential use.
That customer-traffic prohibition is the one most home-based business owners don’t know about. I’d wager a meaningful number of people running client-facing operations out of Denver homes have no idea it applies to them. A consultant who hosts strategy sessions at their kitchen table, a therapist seeing patients in a home office, a personal trainer working with clients in a garage gym — all of them are in violation without the permit, and the permit itself doesn’t fix the client-traffic problem. It just documents that your business is primarily conducted elsewhere.
The permit fee is roughly $25–$50. Apply through Denver Community Planning and Development, not through Excise and Licenses — it’s a separate filing. Denver’s Registered Neighborhood Organizations have standing to flag zoning issues, and in active neighborhoods like Washington Park, Highland, and Congress Park, RNOs have reported unlicensed home business operations when client traffic, signage, or delivery patterns drew attention. The permit is cheap. The restrictions are manageable for a legitimate home-based operation. Operating without it is an unnecessary exposure for something that costs less than a tank of gas.
What Happens If I Don’t Have the Right Licenses?
Operating without a Denver business license is a misdemeanor under the Denver Revised Municipal Code. Fines can reach $999 per violation — verify the current figure against DRMC §32-21 for your specific category. The part people don’t think through: each day of unlicensed operation can constitute a separate violation. Two months without a required license isn’t one $999 fine. It’s potentially 60 separate violations. Denver’s Excise and Licenses department conducts enforcement sweeps in commercial districts, and complaints from neighbors or competitors can trigger an inspection — including of home-based operations.
On the state side, operating without a required Colorado sales tax license exposes you to back taxes on all taxable sales made during the unlicensed period, plus penalties and interest. The $16 registration fee is not the issue. The uncollected or unreported tax is. CDOR cross-references business licensing records with sales data, and if you’re selling without being registered, audits can be initiated through matches with payment processors and supplier records.
Discovering you’ve been operating under the wrong license classification and correcting it mid-stream typically triggers retroactive assessment of unpaid fees plus penalties. Ignorance isn’t a defense. Denver doesn’t need to prove you intentionally violated the code — operating without a required license is enough. The licenses are inexpensive. The penalties for skipping them are not.
Where Do I Actually Go to File?
The portal situation is genuinely confusing, and it catches people. Denver has multiple online systems that look similar, cover different things, and don’t cross-reference each other.
Denver general business license and contractor’s license: denvergov.org/business, through the MyLicense Office portal. This is the Excise and Licenses system.
Denver sales tax registration: The Denver eBiz Tax portal, administered by the Denver Treasury Division. This is where you register for Denver sales tax, file returns, and manage your Denver tax account. It is not the same as MyLicense Office.
Colorado state sales tax license: MyLicense.Colorado.gov, administered by the Colorado Department of Revenue. Entirely separate from both Denver systems.
Home occupation permit: Denver Community Planning and Development. Current contact and application information at denvergov.org/CPD. Not processed through Excise and Licenses.
Free guidance before you file: The Denver Small Business Development Center, at the Bridgepoint Center on California Street in downtown Denver, offers no-cost consultations with advisors who know the local licensing picture — not just the state-level material most SBDC resources cover. Call ahead; walk-in availability varies. If you’re unsure which registrations apply to your business type, an hour there before you start filing is worth it. You’ll also find broader context for this kind of compliance question in our local business registration & licensing coverage.
Not sure what category you’re in: Call 311. City services staff can confirm which license types apply to your business description and point you to the right department. They won’t have a nuanced answer for a complicated edge case, but they can confirm the basics and hand you off to the right agency contact.
The full picture for a product-selling Denver business in 2026 is three registrations with three agencies that don’t talk to each other: the Denver general business license, the Colorado sales tax license, and the Denver sales tax registration. Add a contractor’s license if you’re in the trades, a home occupation permit if you’re working from a residential address, trade-specific licenses from CPD if your work requires them.
None of these registrations is difficult to obtain. The problem is that no single agency tells you about all of them. Each one covers its own piece and leaves you to figure out the rest. That’s not going to change. The only reliable way to make sure you’re fully covered is to understand the structure yourself — which is what this is for.
