Twin Falls, Idaho
How to Fill Out a Twin Falls Side by Side Bill of Sale
Complete guide for filling out a side by side bill of sale in Twin Falls, Idaho (Form ITD 3738). Includes the exact County Assessor’s Motor Vehicle – Twin Falls location, current tax rates, and notarization requirements.
Title Transfer Fee
$14.00
Sales Tax Rate
7.50%
Notarization
Not Required
Step-by-Step: Filling Out Your Twin Falls Side by Side Bill of Sale
- 1
Enter seller and buyer information
Write full legal names and current addresses exactly as they appear on government-issued IDs. Both buyer and seller must use their full legal names — no nicknames or abbreviations. Errors here cause delays at the County Assessor’s Motor Vehicle – Twin Falls.
- 2
Record Side by Side details and VIN
Enter the year, make, model, body style, color, and the 17-character VIN exactly as printed on the dashboard (visible through the windshield) or door jamb sticker. The VIN must match the vehicle title exactly.
- 3
Record sale price, date, and payment method
Write the agreed sale price in both numeral form ($12,500.00) and written form (twelve thousand five hundred dollars). Enter the exact date of the sale — this date triggers the Idaho title transfer requirement. Note payment method: cash, check, or other.
- 4
Both parties sign and date
Both buyer and seller sign and date the completed form. Sign with blue or black ballpoint ink. Idaho does not require notarization for private vehicle bills of sale. Buyer and seller signatures on the completed title assignment are sufficient. Print at least two originals — one for each party.
- 5
Submit to the County Assessor’s Motor Vehicle – Twin Falls
Bring the signed bill of sale, the vehicle title (signed over on the back), and a valid ID to: Visit https://itd.idaho.gov/dmv for the nearest Twin Falls, ID office. Hours: Mon–Fri 8:30 AM–5:00 PM. Phone: See state DMV website for local office phone numbers. You'll pay the title transfer fee of $14.00 and sales tax at 7.50%.
Twin Falls Title & Registration Office
Office
County Assessor’s Motor Vehicle – Twin Falls
Address
Visit https://itd.idaho.gov/dmv for the nearest Twin Falls, ID office
Phone
See state DMV website for local office phone numbers
Hours
Mon–Fri 8:30 AM–5:00 PM
Special requirements in Twin Falls County:
- Complete a title transfer at your local Idaho title office within the required timeframe
- Sales tax applies to private party vehicle purchases
- Both buyer and seller should retain a signed copy of the bill of sale
- Bring a valid government-issued photo ID and proof of insurance
Common Mistakes to Avoid
- ✗Signing before the notary if notarization is required — the notary must witness the signature
- ✗VIN errors — even one wrong character causes the ID DMV to reject the title transfer
- ✗Leaving the sale price blank or writing "gift" if money changed hands — this triggers audit risk
- ✗Using correction fluid to fix mistakes — always initial handwritten corrections instead
- ✗Not keeping a copy — both buyer and seller need a signed original
FAQ — Side by Side Bill of Sale in Twin Falls
- Where do I file a side by side bill of sale in Twin Falls?
- File at the County Assessor’s Motor Vehicle – Twin Falls, located at Visit https://itd.idaho.gov/dmv for the nearest Twin Falls, ID office. Hours: Mon–Fri 8:30 AM–5:00 PM. Phone: See state DMV website for local office phone numbers.
- What is the vehicle title transfer fee in Twin Falls?
- The title transfer fee in Twin Falls County is $14.00. Combined sales tax rate: 7.50%. Idaho state rate 6% + estimated local taxes (verify with your county)
- Does Twin Falls, Idaho require notarization for a side by side bill of sale?
- No. Idaho does not require notarization for private vehicle bills of sale. Buyer and seller signatures on the completed title assignment are sufficient.
- What form do I use for a side by side bill of sale in Idaho?
- Idaho uses Form ITD 3738 for side by side title transfers. You can download it from the County Assessor’s Motor Vehicle – Twin Falls or generate a state-compliant version at BillOfSaleNow.