BillOfSaleNow

Connecticut Bill of Sale Requirements

As of 2026, Connecticut strongly recommends a signed bill of sale for private vehicle transfers. Connecticut does not require notarization for standard private-party sales.

Required Fields

  1. 1Full legal names and addresses of buyer and seller
  2. 2VIN (17 characters)
  3. 3Year, make, model, and color of the vehicle
  4. 4Odometer reading in miles (required)
  5. 5Sale price in numerals and written form
  6. 6Sale date
  7. 7Signatures of both buyer and seller

Connecticut-Specific Requirements

Emissions testing required biennially
VIN verification required for out-of-state vehicles
Title transfer must occur within 60 days

Connecticut does not require notarization for a standard private-party bill of sale.

Official Connecticut Form

Connecticut has an official form: Bill of Sale for a Motor Vehicle (H-31). Obtain from the Connecticut DMV.

Frequently Asked Questions

Is a bill of sale required in Connecticut?

Connecticut strongly recommends a bill of sale for all private vehicle sales. While a signed title alone may technically complete the transfer, a bill of sale protects both parties from disputes over the sale price, odometer reading, and vehicle condition.

What must be on a Connecticut vehicle bill of sale?

A Connecticut vehicle bill of sale must include: buyer and seller full legal names and addresses, the VIN, year, make, model, odometer reading, sale price (written and numeric), sale date, and signatures of both parties.

Does Connecticut require an emissions test for private sales?

Yes — Connecticut requires an emissions or smog test before the buyer can register a vehicle. Check with the Connecticut DMV for specific requirements in your county.

Create a Connecticut-compliant bill of sale

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Trusted by private vehicle sellers nationwide

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