Free Colorado Vehicle Bill of Sale

Colorado Vehicle Bill of Sale — What You Need to Know

Sales Tax Details

Colorado state sales tax is 2.9%, but counties, cities, and special districts add their own rates. Combined rates vary by address — for example 8.81% in Denver — and can be higher in some cities. The county clerk calculates tax based on your residence address, not the seller's. Annual Specific Ownership Tax (SOT) — Colorado's ad valorem vehicle tax — is also collected at registration and decreases each year as the vehicle ages.

Exemption: Family transfers, gifts, and inheritances may be taxed differently from a sale — confirm with the county motor vehicle office what applies and what proof it needs before the transfer. SOT is still owed at registration.

Inspection Requirements

Colorado has no statewide safety inspection. However, emissions testing is required in nine Front Range counties — Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, Jefferson, and the urbanized portions of Larimer and Weld. Gasoline vehicles 7 years and older need testing every two years; diesels follow a separate schedule. A VIN verification (DR2698) is required for vehicles titled out of state.

Registration

Registration for this vehicle type is handled by County Clerk and Recorder — not the same agency that handles cars in Colorado. Plan for separate filings.

Colorado Vehicle Sale — Step-by-Step Checklist

1. Complete a bill of sale — the secure DR 2173 (bought from a DMV-approved vendor) or a written equivalent — with VIN, year, make, model, sale price, and date
2. Seller signs the Colorado title over to buyer with odometer disclosure (required for vehicles of model year 2011 or newer)
3. Buyer completes the Application for Title and Registration (form DR 2395)
4. Verify VIN — DR2698 verification required for out-of-state vehicles, performed by law enforcement, dealer, or emissions station
5. If located in one of the nine emissions counties, complete emissions test before registration
6. Provide proof of Colorado auto insurance meeting state minimums
7. Bring secure and verifiable ID (Colorado driver's license or other accepted document)
8. Buyer visits county clerk and recorder's office within 60 days of purchase
9. Pay 2.9% state sales tax plus local add-ons, Specific Ownership Tax, title fee, and registration
10. Both parties keep signed copies of the bill of sale for tax and insurance records

Common Pitfalls

• Assuming Colorado's tax is just 2.9% — local rates push the effective combined rate to 7-9% in most populated areas, with Denver near 8.81%
• Missing the 60-day transfer deadline — penalties begin accruing and registration becomes more expensive the longer you wait
• Forgetting the annual Specific Ownership Tax (SOT) — it is calculated on the vehicle's taxable value and surprises buyers expecting only a flat registration fee
• Skipping emissions testing when you live in one of the nine Front Range counties — you cannot register without it
• Not getting a VIN verification (DR2698) for out-of-state vehicles — required before the county clerk will issue a Colorado title
• Forgetting that Colorado titling happens at the county clerk and recorder's office, not a state DMV — you cannot title at a driver's license office
• Assuming a family transfer or gift owes no sales tax without first confirming with the county office what applies and what proof it needs
• Buyers from non-emissions counties who later move to a Front Range county and discover their vehicle won't pass the next test

Pro Tip

Colorado's 60-day window gives you breathing room, but the combination of state and local sales tax, Specific Ownership Tax, and Front Range emissions testing makes Colorado one of the more administratively involved states for vehicle transfers. Use a written bill of sale (or the secure DR 2173 sold by approved vendors), file the DR 2395 application at your county clerk and recorder, and do the math on your local combined rate before you sign.

Colorado Vehicle Bill of Sale — FAQs