Do I need a special bill of sale for a used car in Colorado?
Colorado requires a bill of sale for all private party vehicle sales. A used car may have additional disclosure requirements around condition, mileage, or title status.
Used vehicle bill of sale
Selling a used car in Colorado? Pre-owned vehicle private party sale — generate the right bill of sale for your transaction.
When selling a used car through a private party sale in Colorado, a bill of sale protects both the buyer and seller by documenting the transaction details and the vehicle's condition at the time of sale.
Standard private party used vehicle sales require both parties to sign a bill of sale documenting the transaction. Federal odometer disclosure is required for vehicles under 10 years old or with fewer than 160,000 miles under 49 CFR Part 580. No special title branding applies to standard used vehicles.
The seller must provide an accurate odometer statement for eligible vehicles, disclose any known mechanical defects, and confirm the title is free of salvage, flood, or other branding.
Used vehicles sold privately are typically sold "as-is" with no implied warranty. Verify the title is clean and free of liens before completing the purchase.
In Colorado, the title transfer fee is $7.2 and registration costs $50 - $100+ based on vehicle weight and age. Car sales are subject to 2.9% state plus local taxes; ownership tax based on age. Colorado does not require notarization for private-party car transfers. Emission testing is required in Colorado — verify the car passes before completing the sale.
Colorado has a 2.9% state sales tax rate. 2.9% state plus county/city taxes (total 3–10%). Private-party car sales in Colorado are subject to sales tax. Sales tax applies; ownership tax also assessed based on vehicle age. The title transfer fee is $7.
The most common car makes in private-party sales are Toyota, Honda, Ford, Chevrolet, Nissan. Average private-party car prices range from $5,000–$25,000. The average NCAP safety rating for recent car models is 4.2 out of 5 stars. Cars average 3.1 NHTSA recalls per model across categories including Airbags (Takata), Power Train, Fuel System.
Before completing a car bill of sale in Colorado, verify these safety items:
Liability insurance required in 49 states (New Hampshire is the exception). Average annual premium: $1,600–$2,200. Cars lose approximately 20% of value in the first year and 60% over five years. Japanese brands retain value best. Peak season for private car sales is spring (march–may) when tax refunds boost demand, with an average of 21 days on market.
Cars are classified as "Passenger vehicle" for registration purposes. Standard passenger cars weigh 2,500–4,500 lbs; no special weight-class registration required. Federal odometer disclosure is required for cars under 20 years old.
Standard passenger vehicle title transfer requires a signed title, bill of sale, and odometer disclosure statement. Both buyer and seller must sign the title assignment. A clean certificate of title signed by the registered owner is the primary transfer document. Some states issue electronic titles that must be converted to paper before a private sale.
When selling a car in Colorado, the following disclosures apply:
When selling a used car in Colorado, the bill of sale should clearly document the vehicle condition. Liability insurance required in 49 states (New Hampshire is the exception). Average annual premium: $1,600–$2,200. Average car prices range from $5,000–$25,000 — used vehicles typically fall in the lower range.
BillOfSaleNow has generated 1,683 bill of sale documents for Colorado transactions, with 45 generated this month alone. The most popular vehicle type is car.
Generate a Colorado car bill of sale with condition details included.
Create Colorado Car Bill of SaleColorado requires a bill of sale for all private party vehicle sales. A used car may have additional disclosure requirements around condition, mileage, or title status.
Include buyer and seller details, vehicle identifiers (VIN, year, make, model), sale price, date, signatures, and a clear description of the vehicle condition as used.
Yes. A properly completed bill of sale is a legal document in Colorado. For used vehicles, disclosing the condition protects both buyer and seller.
Colorado charges a $7.2 title transfer fee. Registration costs $50 - $100+ based on vehicle weight and age. Sales tax: 2.9% state plus local taxes; ownership tax based on age. Notarization is not required.
Average private-party car prices range from $5,000–$25,000. Used vehicles typically fall in the lower range. The most common makes are Toyota, Honda, Ford, Chevrolet, Nissan.
Verify airbag recall status (Takata recall affected 67M+ vehicles) Check tire age — tires over 6 years old degrade regardless of tread depth
45% faster sale
Vehicles whose listings include a history report spend ~45% less time on site before selling, and report-viewers are 5x more likely to become a lead.
Source: Experian / AutoCheck
$4,000 avg loss
NHTSA estimates 450,000+ vehicles per year are sold with rolled-back odometers — the average victim loses about $4,000 in downstream repair costs.
Source: NHTSA
17.5M private sales/yr
About 17.5 million private-party vehicle transactions happen in the U.S. each year — roughly 47% of the used market.
Source: Cox Automotive 2024
1 in 3 buyers
Roughly 1 in 3 used-car buyers say they suspect private sellers are hiding mechanical problems — documentation closes that trust gap.
Source: JW Surety Bonds (n=3,000)
$60–$85 mobile notary
Mobile notary visit minimums run $60–$85 — higher on weekends, plus per-mile travel fees. State-formatted documents skip the trip.
Source: Thumbtack / NNA