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State Guide Last verified August 30, 2026

Colorado Car Sales Tax, Trade-In Credit, and Out-of-State Rules

What the desk and the buyer each need to know when a Colorado deal crosses state lines: the rate, the trade-in math, the exemption paperwork, and the drive-home tags. Every fact links to the official source.

Check an Out-of-State Deal Jump to Quick Facts

Every fact sourced to Colorado official publications below

Short answer

Colorado taxes vehicle sales at 2.9% state plus local add-ons (depends on the buyer's address). Colorado taxes the price after the trade-in is deducted. Colorado exempts out-of-state buyers only under specific conditions. Colorado credits sales tax legally paid to another state, so the same dollars are not taxed twice. The rules above cover retail dealer sales; most states handle leases and private-party sales separately.

Colorado car sales tax quick facts

Last verified August 30, 2026
Sales tax rate on vehicles2.9% state plus local add-ons (depends on the buyer's address)[1]
Trade-in creditColorado taxes the price after the trade-in is deducted. The trade-in must itself be a vehicle subject to licensing, registration, or certification.[2]
Selling to an out-of-state buyerColorado exempts out-of-state buyers only under specific conditions. The vehicle must be delivered to a nonresident to be licensed outside Colorado, must not be licensed or registered in Colorado, and must be removed from Colorado within thirty (30) days of purchase.[3]
Credit for tax paid to another stateColorado credits sales tax legally paid to another state, so the same dollars are not taxed twice.[2]
Dealer doc feeNo statutory cap[4] · taxable[2]
Temp tag for the drive homeColorado dealers issue the temporary registration permit themselves at the time of sale, and it runs 60 days. The dealer cannot issue one without proof of insurance from the buyer. Colorado's published temp-permit rules set no separate term for a buyer who will register the vehicle in another state.[5]
Out-of-state buyer registrationColorado registration keys off residency, not where the car was bought. A buyer who establishes Colorado residency has 90 days from that point to register here. A buyer who stays a resident of another state titles and registers at home; under the DR 0780 exemption the vehicle is not to be licensed or registered in Colorado at all.[6]

Colorado car sales tax calculator

Enter the sale price and any trade-in to estimate Colorado vehicle tax and the out-the-door total before title and registration. It applies the verified rate, trade-in rule and doc fee treatment from the quick facts above.

General information, not tax or legal advice. Everything on this page was compiled from official Colorado government publications (listed under Sources) and last verified August 30, 2026, but rates and rules change and errors are possible. Voltra makes no warranty as to accuracy or completeness and accepts no liability for decisions made on this data. Confirm the current rules with the Colorado Department of Revenue, Taxation Division or a licensed professional before acting on anything here. Covers retail dealer sales; leases and private-party sales follow different rules in most states.

From the desk

Colorado's state rate looks tiny until the city, county, and district add-ons stack, and delivery address drives which ones apply. The desk that quotes off the dealership's own zip code gets surprised at registration.

Selling to an out-of-state buyer in Colorado

Colorado exempts out-of-state buyers only under specific conditions. The vehicle must be delivered to a nonresident to be licensed outside Colorado, must not be licensed or registered in Colorado, and must be removed from Colorado within thirty (30) days of purchase.[3]

None of it works without DR 0780 (Statement of Sales Tax Exemption for Motor Vehicle Purchase), completed at delivery. Skip the form and the state looks to the dealer for the tax, not the buyer.

The desk's job doesn't end at the tax line. Somebody still has to chase the title, the temp tag, and the buyer's home-state registration until each one lands.

Buying in Colorado from out of state

If you live in another state and buy in Colorado, the deciding rule is where the vehicle gets registered: your home state's tax applies at registration, and what happens at the Colorado sale depends on the rule above. Colorado credits sales tax legally paid to another state, so the same dollars are not taxed twice.[2]

Registration and temp tags

Colorado dealers issue the temporary registration permit themselves at the time of sale, and it runs 60 days. The dealer cannot issue one without proof of insurance from the buyer. Colorado's published temp-permit rules set no separate term for a buyer who will register the vehicle in another state.[5] Colorado registration keys off residency, not where the car was bought. A buyer who establishes Colorado residency has 90 days from that point to register here. A buyer who stays a resident of another state titles and registers at home; under the DR 0780 exemption the vehicle is not to be licensed or registered in Colorado at all.[6]

Bordering states

Cross-border deals from Colorado most often involve Kansas, Nebraska, New Mexico, Oklahoma, Utah and Wyoming. Every pair works differently; run the exact combination in the out-of-state checker.

Vehicle-type exceptions

Colorado exempts certain medium- and heavy-duty vehicles from state sales and use tax: over 26,000 lbs GVWR with an EPA-certified engine, or over 10,000 lbs GVWR running on CNG, LPG, LNG, electricity, or hydrogen fuel cells. The exemption is off for sales between January 1, 2025 and July 31, 2025, and after December 31, 2028, and it reaches state-administered city and county taxes only where the jurisdiction has expressly adopted it.[2]

Sources

  1. tax.colorado.gov/sales-tax-guide · verified 2026-08-27
  2. tax.colorado.gov/sales-use-tax-topics-motor-vehicle-sales · verified 2026-08-27
  3. tax.colorado.gov/DR0780 · verified 2026-08-27
  4. www.sos.state.co.us/…/GenerateRulePdf.do · verified 2026-08-30
  5. dmv.colorado.gov/colorado-dealers · verified 2026-08-27
  6. dmv.colorado.gov/registration · verified 2026-08-30
Cite this page

“Colorado Car Sales Tax & Out-of-State Rules.” Voltra. Last verified August 30, 2026. https://voltra.ai/car-sales-tax/colorado/

More state-by-state guides: trade-in tax credit by state · recent rule changes · all states + the out-of-state checker

Colorado car sales tax questions

Colorado taxes vehicle sales at 2.9% state plus local add-ons (depends on the buyer's address). That percentage applies to the taxable price figured at the desk, which is exactly where trade-in credit and doc fees earn their keep.

Colorado taxes the price after the trade-in is deducted. The trade-in must itself be a vehicle subject to licensing, registration, or certification. The taxable price rides on that treatment, so identical deals can carry different tax bills depending on the state.

Colorado exempts out-of-state buyers only under specific conditions. The vehicle must be delivered to a nonresident to be licensed outside Colorado, must not be licensed or registered in Colorado, and must be removed from Colorado within thirty (30) days of purchase. The exemption runs on DR 0780 (Statement of Sales Tax Exemption for Motor Vehicle Purchase), completed at delivery.

Colorado credits sales tax legally paid to another state, so the same dollars are not taxed twice.

Colorado does not cap dealer doc fees by statute. The doc fee is taxed along with the vehicle.

Start with the sale price and subtract the trade-in allowance (Colorado credits it in full), then multiply by 2.9% state plus local add-ons (depends on the buyer's address) plus any local add-on. The dealer doc fee is taxable in Colorado, so add it before you multiply. The Colorado calculator on this page runs those steps with the verified figures and shows the out-the-door estimate before title and registration fees.