Colorado Sales & Use Tax for Trades
Colorado is the hardest sales-tax state in America for small business — ~70 home-rule cities, separate licenses and filings, use tax on materials, and Denver's own layers. We manage the whole map for cleaning, painting and flooring businesses so the first you hear of a deadline is never a penalty notice.
What makes Colorado uniquely painful
The state rate is only 2.9% — the trap is everything under it. Home-rule cities like Denver, Aurora, Lakewood and Westminster collect their own sales tax with their own licenses, forms and definitions. The state's SUTS portal helps but doesn't cover everything. And for trades businesses the questions compound: which city's rules apply to which job, when are you a consumer vs. a retailer of materials, and where does use tax sneak in?
How it hits each trade
Cleaning: your services are generally not state-taxable — but your supplies are taxable to you, and city rules vary. Simple once set up; expensive when guessed.
Painting: labor on real property isn't taxable, but you typically owe sales or use tax on paint and materials you consume — including out-of-state and online purchases nobody taxed at checkout.
Flooring: the hardest case in the state. Lump-sum contract → you're the consumer, tax paid on cost. Retail-plus-install → you're a retailer, collecting on the materials price. Same showroom, both treatments, week in and week out — full detail on our flooring page.
What the service includes
- Nexus and obligation review — which cities actually apply to your work
- Registrations and licenses, state and home-rule
- Per-revenue-stream tax treatment (documented, defensible)
- Use-tax tracking on materials purchases
- Filing calendar management and filings support
- Denver OPT and Retail Delivery Fee compliance where they apply
FAQ
Colorado sales & use tax — common questions
Why is Colorado sales tax so hard?
Because roughly 70 home-rule cities self-collect: their own licenses, their own filings, their own rules layered on the state's 2.9%. A trades business working across the metro can owe several cities paperwork the moment its trucks cross a line. Most states have one sales-tax system; Colorado has dozens.
What is use tax and do I owe it?
Use tax is sales tax's twin for purchases where no Colorado tax was collected — materials bought online or out of state, consumed on your jobs. Contractors owe it constantly and know it rarely. Denver adds building-permit use tax on some construction work.
What's the Denver OPT?
The Occupational Privilege Tax — Denver's 'head tax.' Employees earning $500+ in a month in Denver pay $5.75/month (withheld), and you pay $4.00/month per such employee. Owners owe it on themselves. Aurora, Glendale, Greenwood Village and Sheridan run their own versions.
Does the Retail Delivery Fee apply to me?
If you deliver taxable tangible goods to Colorado customers by motor vehicle (flooring retailers, this means you), the state's per-delivery fee — currently about $0.29 — applies. Small money, real filing obligation.
Can you just do the filings for me?
Yes — sales/use-tax registration and filings support is included in our GC package and available as an add-on to Foreman. We track every city's calendar so you never learn about a deadline from a penalty notice.
Get the tax map handled before it handles you.
Free Books Health Check — including a look at which Colorado obligations apply to how you actually sell.
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