South Dakota — quick answer
In South Dakota, a bill of sale is recommended for a private vehicle sale and notarization is not required. No witnesses are required. The relevant state form is MV-016. Ownership is transferred through the South Dakota DOR via the assigned title.
South Dakota's rules can vary by county or transaction. We've based this on official sources, but please confirm the exact requirement with the South Dakota DOR before you sign.
Is a bill of sale required in South Dakota?
Recommended. A bill of sale supports the Title and Registration Application.
Seller assigns the title; the buyer titles within 45 days at the county Treasurer.
Does a South Dakota bill of sale need to be notarized?
Not required. No notarization found for a standard transfer.
Witness requirements
No. South Dakota does not require witnesses for a standard private bill of sale.
Odometer disclosure
Federal law requires a written odometer disclosure when title is transferred for vehicles less than 20 years old. As of 2026 that means model year 2011 and newer; model year 2010 and older are generally exempt. Record the exact mileage — never round it. See the NHTSA rule.
How to transfer a vehicle title in South Dakota
- 1Complete the bill of sale and title assignment.
Fill in the buyer, seller, price, odometer, and date. Both parties sign and date the document.
- 2Hand over the signed title.
Seller assigns the title; the buyer titles within 45 days at the county Treasurer.
- 3Register with the South Dakota DOR.
The buyer titles and registers the vehicle, bringing Bill of Sale (MV-016). Confirm the current fees and documents on the official South Dakota DOR page.
Official South Dakota sources
- South Dakota Department of Revenue, Motor Vehicle Division — buying & selling a vehicle
- NHTSA — federal odometer disclosure rule
We link to primary government sources and review this page regularly, but requirements change. This is general information, not legal advice.
South Dakota bill of sale by type
Get requirements and a free template tailored to South Dakota for each item type — the generator applies the South Dakota notary and witness rules automatically:
South Dakota bill of sale — FAQ
Is a bill of sale required in South Dakota?
In South Dakota, a separate bill of sale is recommended. A bill of sale supports the Title and Registration Application.
Does a South Dakota bill of sale need to be notarized?
No. No notarization found for a standard transfer.
Do I need a witness for a bill of sale in South Dakota?
No. South Dakota does not require witnesses for a standard private bill of sale.
How do I transfer a vehicle title in South Dakota?
Seller assigns the title; the buyer titles within 45 days at the county Treasurer. Titling and registration in South Dakota are handled by the South Dakota Department of Revenue, Motor Vehicle Division.
Is a bill of sale proof of ownership?
Generally no. For titled property like a car or boat, the title is what proves ownership. A bill of sale proves that a sale happened and records the price, date, and terms — it supports the title transfer but does not replace it. For untitled property (furniture, equipment, electronics), the signed bill of sale is usually the main proof of ownership.