How to Sell a Car Privately in Colorado (2026 Guide)
Quick Answer
To sell a car privately in Colorado you need: a signed title, a completed bill of sale (VIN, sale price, odometer, date, both signatures), and photo ID. The buyer has 30 days to transfer the title at the Colorado DMV (county motor vehicle office) and pay the $7.2 transfer fee plus pass an emissions test.
Colorado-Specific Note
Colorado title and registration is handled at the county motor vehicle office. The Ownership Tax replaces the traditional sales tax for vehicles — it's assessed annually based on the vehicle's taxable value (declining with age). Emissions testing is required in the Denver metro Front Range.
Step-by-Step: How to Sell a Car Privately in Colorado
Follow these 7 steps in order. Do not skip step 6 — a missing or incorrect bill of sale is the #1 reason title transfers are rejected by the Colorado DMV (county motor vehicle office).
- 1Price your vehicle using Kelley Blue Book (kbb.com) and Edmunds (edmunds.com) to establish fair market value. Cross-reference at least two sources. Set your asking price 5–10% above your walk-away number to leave negotiating room.
- 2Gather your documents before advertising: the clear title (no open liens), valid government-issued photo ID, maintenance records, and any warranty paperwork. If there is an open lien, contact your lender to arrange a payoff and lien release before listing.
- 3Run a VIN history report and share it with prospective buyers. Reports from Carfax or AutoCheck cost around $40 and show accident history, odometer records, and title status. Serious buyers expect this — having it ready prevents the "I need to check the VIN" negotiating tactic.
- 4Photograph and list the vehicle with full details: mileage, options, maintenance history, and known condition. State "as-is, private sale" clearly in the listing. Use at least 10 photos taken in daylight from multiple angles.
- 5Screen buyers: allow test drives only after requesting a valid license. Meet in a public location (a bank parking lot is ideal — you can accept a cashier's check on the spot). Never allow an unsupervised test drive.
- 6Complete a Colorado bill of sale at the time of the sale. Both buyer and seller must sign. The document must include the VIN, sale price, odometer reading, sale date, and full names and addresses of both parties.
- 7Sign over the title to the buyer. The seller signs the assignment section on the back of the title. Double-check every field — an incorrect title is rejected by the Colorado DMV (county motor vehicle office). The buyer has 30 days to complete the title transfer.
Required Paperwork for a Colorado Private Car Sale
Signed vehicle title
The seller signs the back of the Colorado title in the assignment section. Fill in the buyer's full legal name, sale price, and date. Do not leave any field blank.
Bill of sale
Must include: buyer and seller full names and addresses, VIN (17 characters), year, make, model, odometer reading in miles, sale price (written and numeric), sale date, and both parties' signatures. Colorado's official form is Bill of Sale for a Motor Vehicle (DR 2173).
Odometer disclosure
Required by federal law (Truth in Mileage Act) for vehicles under 10 model years old. Colorado also requires odometer disclosure under state law. Record the exact odometer reading at the time of sale.
Government-issued photo ID
Both parties should bring a valid driver's license or state-issued ID. This confirms identity and reduces fraud risk. Make a photocopy for your records.
Emissions / smog certificate
Colorado requires emissions testing in the Denver metro and northern Front Range counties (Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, El Paso, Jefferson, Larimer, and Weld). Cost is $25. Check coepd.com for testing locations.
Colorado DMV Information and Fees
Protect Yourself After the Sale
Signing over the title and handing over the keys does not automatically end your liability in Colorado. If the buyer is involved in an accident, receives a traffic citation, or accumulates unpaid tolls before transferring the title, you may receive notices — or worse, have your license suspended.
Complete the seller section on the back of the Colorado title at the time of sale. Notify the county motor vehicle office that the vehicle has been sold. Colorado plates stay with the owner (not the vehicle).
3 Common Mistakes When Selling a Car in Colorado
Not completing a VIN verification for an out-of-state vehicle — Colorado requires a VIN inspection by a licensed verifier if the vehicle was previously titled in another state. This must be done before title transfer.
Missing emissions testing — Colorado requires testing in the Denver metro (Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, El Paso, Jefferson, Larimer, and Weld counties). Vehicles without current emissions cannot be registered.
Forgetting that the buyer pays Ownership Tax (not sales tax) — the distinction matters for negotiations. New buyers may be surprised by the ongoing annual Ownership Tax obligation.
Frequently Asked Questions
What paperwork do I need to sell a car privately in Colorado?▾
To sell a car privately in Colorado, you need: (1) the vehicle title signed and dated by the seller; (2) a completed bill of sale with VIN, sale price, odometer reading, sale date, and both parties' signatures; (3) valid government-issued photo ID; and (4) an odometer disclosure statement for vehicles under 10 model years old. A VIN history report, while not required, is strongly recommended to reassure buyers and justify your asking price.
How long does the buyer have to transfer the title in Colorado?▾
In Colorado, the buyer has 30 days from the date of sale to transfer the title at the Colorado DMV (county motor vehicle office). Missing this deadline results in late fees. Sellers should file a notice of sale with the Colorado DMV (county motor vehicle office) promptly after the sale to avoid liability for post-sale incidents.
Does Colorado require a notary for a private car sale?▾
No — Colorado does not require notarization for a standard private car sale. Both parties simply need to sign the bill of sale and the seller signs the back of the title. Voluntary notarization is always an option for extra legal protection, particularly for high-value vehicles.
How much is the title transfer fee in Colorado?▾
The title transfer fee in Colorado is $7.2. This fee is paid by the buyer at the Colorado DMV (county motor vehicle office) at the time of registration. In addition to the title fee, the buyer pays Colorado charges 2.9% state sales tax plus local taxes and an Ownership Tax based on the vehicle's taxable value. Private party purchasers pay at the county motor vehicle office at registration. Registration fees are also due at that time.
Can I sell a car without a title in Colorado?▾
Selling a vehicle without a clear title in Colorado is strongly discouraged and may be illegal. If you have lost the title, apply for a duplicate title at the Colorado DMV (county motor vehicle office) before listing the vehicle. If you have an outstanding loan, contact your lender to arrange a payoff and lien release. Buyers who purchase a vehicle without a proper title will have serious difficulty registering it.
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