Free South Dakota Used Car Bill of Sale
Used-car private sales in South Dakota are simple compared to most states: no inspection, no emissions, no DMV lines — just a signed title, a bill of sale, and a trip to the county treasurer to pay the 4% Motor Vehicle Excise Tax. South Dakota publishes Form MV-016 as its official bill of sale, but a typed document works fine as long as the VIN, price, odometer, and signatures are there. The state has no income tax, so the county treasurer will scrutinize sale prices that look fishy compared to NADA book — write the real number and keep your receipts.
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South Dakota Used Car Bill of Sale — What You Need to Know
Sales Tax Details
Used cars are subject to the same 4% Motor Vehicle Excise Tax as new vehicles, calculated on the actual purchase price written on the bill of sale. The county treasurer cross-references unrealistically low prices against NADA average trade-in value and may assess MVET on the higher number — so a $500 sale price on a $15,000 Tahoe will get flagged. There is no trade-in credit on private-party sales (only when trading at a licensed SD dealer). The county treasurer collects MVET when the buyer titles the vehicle, not at the time of sale.
Exemption: Same family exemptions as for any vehicle — spouse, parent, child, sibling, grandparent, grandchild, plus step and in-law. Inheritance and divorce-decree transfers are also MVET-exempt. Document the relationship on Form MV-008.
Inspection Requirements
No safety inspection and no emissions testing for used cars in South Dakota — you can buy a 20-year-old pickup with a check engine light and title it the same day. The buyer should still do their own pre-purchase inspection at a trusted shop because there is no state-mandated mechanical check protecting them. For salvage and rebuilt vehicles, SD Highway Patrol inspection is required before a rebuilt title can issue.
Registration
Registration for this vehicle type is handled by County treasurer's office (on behalf of SD DOR MVD) — not the same agency that handles cars in South Dakota. Plan for separate filings.
South Dakota Used Car Sale — Step-by-Step Checklist
- Buyer and seller full legal names plus complete addresses
- Year, make, model, body type, and 17-digit VIN (cross-check against the dash and door jamb)
- Exact odometer reading on the day of sale — required disclosure for vehicles under 20 model years old
- Sale price in dollars — this is what the 4% MVET is calculated on at the county treasurer
- Date of sale (starts the 45-day titling clock)
- Damage disclosure form for vehicles under 9 model years old
- "As-is, no warranty" language — private sales are not covered by lemon law
- Lien release from the seller's lender if the title shows a lienholder
- Both signatures and printed names dated the day of sale
Common Pitfalls
- Skipping the federal odometer disclosure on cars under 20 model years old. SD enforces this; missing it voids the title transfer.
- Not getting a lien release before money changes hands. If the title shows GM Financial or Wells Fargo as lienholder, the seller must produce a release stamp or letter — otherwise the buyer can't title the car.
- Writing "gift" on the bill of sale to dodge MVET when it isn't actually a family transfer. The treasurer will reassess MVET against NADA value and tack on penalties. If it's a real gift between immediate family, claim the exemption properly.
- Out-of-state buyers assuming SD will let them transit the car home on the seller's plates. Plates stay with the seller. Get a 30-day temporary permit from the county treasurer.
- Sellers forgetting to file a Notice of Sale with their county treasurer. SD doesn't require it the same way some states do, but keeping a signed copy of the bill of sale and a photo of the assigned title protects you if the buyer doesn't actually retitle within 45 days.
Pro Tip
Sign two copies of the bill of sale, hand the buyer the assigned title, pull your plates off the car, and you're done as the seller. The buyer has 45 days to get to their county treasurer with MV-008, the bill of sale, and 4% MVET in hand. South Dakota keeps used-car sales fast and cheap — just don't lie about the price.