Colorado charges sales tax on out-of-state cars based on where you live, not where you bought the vehicle. The statewide rate is 2.9%, and your county, city, and any special districts add their own percentages on top.1Weld County. Sales Tax – Motor Vehicle If the seller’s state already collected sales tax, Colorado gives you a credit against its 2.9% portion, but the local pieces still come due when you register at your county clerk’s office.2Grand County, CO. Sales and Use Tax
How the Tax Is Calculated
Start with 2.9% statewide.1Weld County. Sales Tax – Motor Vehicle Then add whatever county, city, and district taxes apply at your residential address. Along the Front Range, that often includes the 1.0% Regional Transportation District (RTD) tax and the 0.1% Scientific and Cultural Facilities District (SCFD) tax.3Colorado Department of Revenue. Colorado Sales/Use Tax Rates Combined rates commonly land between roughly 6% and 10% depending on the address.
On a $30,000 car, that spread works out to somewhere between about $1,800 and $3,000 in sales tax before registration fees. The math runs on the net purchase price, meaning the sale amount after any trade-in value is subtracted, and Colorado applies that trade-in deduction whether the transaction happened in-state or out-of-state.4Colorado Department of Revenue. Sale and Use Tax Topics: Motor Vehicles Before you sign anything, look up the combined rate for your home address on the Colorado Department of Revenue’s tax rate lookup so you know what the register is going to say.
Colorado Residents Buying a Car Out of State
If you live in Colorado and bought your car elsewhere, you owe the full combined state and local tax for your home address. If the other state’s dealer collected sales tax, Colorado credits what you already paid against its 2.9% state portion, up to that 2.9%.2Grand County, CO. Sales and Use Tax The credit does not reach your county, city, or district taxes; those come due in full.
An example: you buy in a state that charges 4% and your Colorado combined rate is 8%. The 4% you already paid wipes out Colorado’s 2.9% (the credit is capped there), and you still owe the remaining local portion when you register. If you bought in a state with no sales tax at all, there is nothing to credit, and you pay the entire Colorado state and local amount at the county clerk.
Dealer Versus Private Party
A licensed dealer, in or out of state, generally collects sales tax at the point of sale or gives you a receipt showing what was paid. The county clerk then charges only the difference. Private sellers are different: they are not required to collect sales tax.4Colorado Department of Revenue. Sale and Use Tax Topics: Motor Vehicles That means you owe the full state and local tax directly to the county clerk when you title and register the vehicle. Buy a $20,000 car privately with a 7.5% combined rate and you need $1,500 ready at the counter, on top of registration fees.
Nonresidents Buying From a Colorado Seller
If you live in another state and buy from a Colorado dealer, you can generally skip Colorado sales tax under the nonresident motor vehicle exemption, as long as the car will be registered outside Colorado. You sign an affidavit stating that you will remove the vehicle from Colorado within 30 days of purchase. The dealer documents the exemption on Form DR 0780 (Statement of Colorado Sales Tax Exemption for Motor Vehicle Purchase) and keeps it on file; you will need a valid driver’s license from your home state to prove residency.5Colorado General Assembly. Commercial Trucks and Trailers Licensed Out-of-State and Nonresident Motor Vehicle Exemptions
The exemption does not erase your tax obligation. Your home state will almost certainly collect its own sales or use tax when you register the vehicle there. Private party purchases by nonresidents work the same way in practice: the seller does not collect Colorado tax, you will not register in Colorado, and your home state handles the tax on its end.5Colorado General Assembly. Commercial Trucks and Trailers Licensed Out-of-State and Nonresident Motor Vehicle Exemptions
What to Bring to Register in Colorado
Bringing an out-of-state car into Colorado means arriving at the county clerk with a full stack of paperwork. Miss one item and the trip is wasted.
- The original out-of-state title signed over to you, or, for a new vehicle, the Manufacturer’s Certificate of Origin from the dealer.
- A bill of sale showing the final purchase price and any trade-in value deducted.
- Proof of tax already paid, if any—a dealer invoice or receipt itemizing the sales tax. Without it, you cannot claim the credit against Colorado’s 2.9%.
- A completed VIN verification on Form DR 2698, signed by an authorized inspector such as Colorado law enforcement or a licensed Colorado dealer.6Colorado Department of Revenue. Verification of Vehicle Identification Number
- Proof of Colorado liability insurance in your name.
- Emissions test results, if your address falls in a mandatory testing area (Boulder, Broomfield, Denver, Douglas, or Jefferson counties, and parts of Adams, Arapahoe, Larimer, and Weld).7Department of Revenue – Motor Vehicle. Gas Vehicles
One form you can generally ignore as a buyer: the DR 0024, Standard Sales Tax Receipt for Vehicle Sales, is completed by dealers and retailers, not individuals.8Colorado Department of Revenue – Taxation. DR 0024 – Standard Sales Tax Receipt for Vehicle Sales A dealer should hand you a completed copy. If you bought privately, the clerk calculates tax from your bill of sale instead.
The 60-Day Deadline and Late Costs
Colorado gives you 60 days from the purchase date to register.9Department of Revenue – Motor Vehicle. FAQs – Registration Starting day 61, late fees run $25 per month or partial month, capped at $100.10FindLaw. Colorado Revised Statutes Title 42 Vehicles and Traffic 42-3-112 Those late fees sit on top of prorated back taxes and fees for the period the vehicle went unregistered.11Department of Revenue – Motor Vehicle. Taxes and Fees
Unpaid sales or use tax also accrues interest from the original due date. For 2026, the annual rate is 8% if you pay before or within 30 days of a notice of deficiency, and 11% otherwise.12Colorado Department of Revenue. Tax Topics: Penalties and Interest If a document is slow to arrive or an emissions slot is booked out, ask your county clerk about a temporary plate. Counties can issue one valid up to 60 days from the purchase date so you can drive legally while you finish gathering paperwork.14Jefferson County, CO. Temporary Tags
Specific Ownership Tax: The Other Charge at the Counter
Sales tax is not the only line item. Colorado also assesses an annual specific ownership tax in place of a personal property tax on vehicles. It is based on the vehicle’s original taxable value, generally 85% of MSRP for passenger cars, and drops with age: 2.10% in year one, 1.50% in year two, 1.20% in year three, and continuing down until it becomes a flat $3.00 per year after year ten.13Department of Revenue – Motor Vehicle. Taxes and Fees
For an out-of-state vehicle being registered in Colorado for the first time, this charge is calculated from age and original MSRP regardless of what you actually paid. A three-year-old SUV with an original MSRP of $45,000 has a taxable value of about $38,250 and an ownership tax of roughly $459 at the third-year rate. Budget for it alongside sales tax and registration fees so the total at the clerk’s counter is not a surprise.