Colorado Car Sales Tax Calculator
Colorado charges a state vehicle sales/use tax of 2.90% on a car purchase. On a $20,000 vehicle that is about $580.00 in state tax before any local add-ons. Enter your own price below — and your trade-in, if Colorado allows a trade-in credit — to estimate what you'll owe.
Quick answer: Colorado’s state vehicle sales/use tax rate is 2.90%. Local (county/city) taxes may apply on top.
Estimate your Colorado car sales tax
Enter the vehicle price. If Colorado gives a trade-in tax credit, add your trade-in value to reduce the taxable amount.
State rate only. Many Colorado counties and cities add a local sales tax on top, so your actual total may be higher. Trade-in credit rules vary — confirm eligibility with the official source below.
How Colorado taxes a car purchase
| State vehicle sales/use tax rate | 2.90% |
| Taxable amount | Price − trade-in credit (where allowed) |
| Local / county tax | Varies by jurisdiction — added on top of the state rate |
Colorado charges a $7.20 title fee. State sales tax is 2.9%; counties and cities add their own taxes (combined rates can exceed 8%). Annual ownership tax replaces traditional registration fee components and varies by vehicle age/value.
Sales tax on a used car in Colorado
Colorado applies the same 2.90% state sales/use tax to a used car as to a new one. On a private-party sale the tax is normally collected when you title and register the vehicle — calculated on the price you paid, minus a trade-in credit where the state allows one, and checked against the vehicle's fair-market value to deter under-reporting.
Dealer vs. private-party purchases in Colorado
Colorado dealers collect sales/use tax at the buyer's residence rate and submit title paperwork to the county motor vehicle office on the buyer's behalf. Private-party buyers must take the assigned title, DR 2395, proof of insurance, and ID to their county motor vehicle office within 60 days. The county collects state, county, city, and special-district sales/use tax all at once.
Source ↗What's different about Colorado vehicle tax
Colorado is structurally complex on vehicle taxes because of the layered local rates: a buyer in unincorporated Adams County may owe a very different combined rate than a buyer 10 miles away in Denver City and County. The Colorado Department of Revenue publishes rate tables by address. Private-party sales are taxed the same as dealer sales — the county clerk collects sales/use tax at title transfer using the buyer's residence rate. Gifts between immediate family members may qualify for an exemption.
Source ↗County & local taxes in Colorado
Colorado has the lowest state sales-tax rate in the U.S. at 2.9%, but counties, cities, and special districts (RTD, SCFD, cultural and stadium districts) layer their own rates on top. The combined rate in the Denver metro can exceed 8%; Boulder, Aurora, and Colorado Springs each apply different combined rates. The rate that applies is the rate in effect at the buyer's address, looked up by the county clerk at title transfer.
Source ↗Worked example: buying a car in Colorado
Hannah buys a used 2020 Subaru Outback from a private seller in Denver, Colorado for $22,000. Her Denver address has a combined sales tax rate of approximately 8.81%.
| Vehicle price | $22,000.00 |
| Title fee | $7.20 |
| Combined state + local sales/use tax (approximately 8.81%) | $1,938.20 |
| Year-1 Specific Ownership Tax (depreciated MSRP basis, approximate) | $290.00 |
| Registration, license, and bridge/road safety fees (approximate) | $95.00 |
| Estimated total | $24,330.40 |
Hannah pays the $7.20 title fee at the Denver County motor vehicle office and the combined Colorado state + Denver City and County + RTD + SCFD sales/use tax (~$1,938) at the same visit. Her first-year Specific Ownership Tax and total registration line items together run in the high three figures for a recent-model Outback (confirm exact amounts on the county MV fee calculator). Denver is inside the AIR Care boundary, so an emissions test will be required at her first renewal.
What this estimate excludes
- Local and district taxes. County, city, and transit taxes are added on top of the Colorado state rate.
- Title, registration, and plate fees. These are separate from sales tax — use the Colorado registration and title-transfer calculators for those.
- Dealer documentation fees. A dealer “doc fee” is charged on top and is often itself taxable.
- Exemptions. Gifts, inheritance, and certain family transfers may be exempt — confirm with Colorado Division of Motor Vehicles.
Official Colorado sources
Related Colorado tools & guides
Frequently asked questions
How much is sales tax on a car in Colorado?
The Colorado state vehicle sales/use tax rate is 2.90%. Multiply it by the taxable purchase price (usually the price minus any trade-in credit). Counties and cities may add a local sales tax on top, so confirm your combined rate with Colorado Division of Motor Vehicles.
Do I pay sales tax when buying a used car from a private seller in Colorado?
In most states, sales or use tax on a private-party vehicle purchase is collected when you title and register the car, not at the point of sale. The rate is generally the same as a dealer sale. Confirm the private-sale rules with Colorado Division of Motor Vehicles.
Does Colorado give a sales tax credit for a trade-in?
Most states tax only the difference between the vehicle price and your trade-in value, which lowers the tax you owe. A handful of states tax the full price with no trade-in credit. Verify Colorado's treatment before you rely on the estimate above.
Are there local or county car sales taxes in Colorado?
Often, yes. The rate shown here is the Colorado state rate only; many counties, cities, and transit districts add a local sales tax on vehicle purchases, so your combined rate can be higher. Colorado Division of Motor Vehicles publishes the official combined rates.
Can you legally avoid sales tax on a used car in Colorado?
The legitimate ways to lower or avoid vehicle sales/use tax in Colorado are a qualifying trade-in credit (where the state allows one), a genuine gift or qualifying family transfer, or a specific exemption the state grants — not understating the sale price, which is illegal and easily caught by Colorado Division of Motor Vehicles against the vehicle's fair-market value. Confirm any exemption with Colorado Division of Motor Vehicles before relying on it.
Why is Colorado sales tax so different depending on where I live?
Colorado has a 2.9% state rate — the lowest in the country — but counties, cities, RTD (Regional Transportation District), the Scientific & Cultural Facilities District, and stadium districts each set their own rates on top. The combined rate at a Denver address can exceed 8%; a few rural Colorado addresses pay close to the 2.9% state minimum. The county clerk applies the combined rate at the buyer's residence when you transfer title.
What is Colorado's Specific Ownership Tax (SOT)?
SOT is an annual property-tax-like charge on the vehicle paid as part of registration. It's calculated from the vehicle's taxable value (initially based on MSRP or sale price) and depreciates over time on a state schedule. SOT replaces what would otherwise be local personal-property tax on vehicles. New, expensive vehicles owe materially more SOT than older or cheaper ones in their first years.
Do I need an emissions test to register a car outside the Denver metro in Colorado?
No. Colorado's AIR Care emissions program applies only in the Denver-Boulder Front Range Air Quality Control Area. Vehicles registered outside that area — Mesa County (Grand Junction), Pueblo, the mountain counties, and other rural Colorado — are exempt from emissions testing. The state's air-quality agency publishes the boundary map.
Last reviewed: 2026-01-01 · Reviewed by the Car Paperwork editorial team · Based on official Colorado Division of Motor Vehicles sources · Independent resource · Not legal advice