Private-Party Vehicle Title Transfer Requirements in South Dakota

At a glance

Requirements one by one

The title assignment and the county-treasurer filing

South Dakota moves ownership through the certificate of title. The seller assigns the title to the buyer on the back — filling in the buyer, the date of sale, the price, and the odometer, and signing — and the buyer's application "shall be accompanied by the certificate of title duly assigned" (§ 32-3-18). Where the front joins owners with "and," both sign; where it joins them with "or," one may sign (county treasurer).

The buyer files the Application for Motor Vehicle/Boat Title & Registration (MV-1001) with the county treasurer in the buyer's county of residence, signed by the owner(s) or an authorized agent holding a power of attorney (DOR). A recorded lien must be released before a clear title issues. No vehicle may be licensed until the title is obtained (§ 32-3-4).

No notarization

Nothing in an ordinary South Dakota transfer is notarized. The assigned title, the Bill of Sale, and the MV-1001 application carry no notary requirement in the Department of Revenue and county-treasurer process. A false statement on a title document is perjury under § 32-3-19, but that is a certification under penalty of law, not a notary step.

The bill of sale is required — and sets the tax

South Dakota requires a bill of sale to title a purchased vehicle, and the DOR publishes an official Bill of Sale. It states the vehicle, VIN, price, date, and the parties' signatures, and the 4% excise tax is based on the purchase price it shows. Because the price drives the tax, "the amount on the bill of sale must reflect fair market value or it will be booked out through NADA" (county). It supplements the assigned title; it does not by itself title the car.

Odometer disclosure by age

An odometer disclosure signed by both the seller and the buyer is required for a vehicle 20 model years or newer (county; DOR), tracking the federal 49 CFR 580 overlay under which 2011-and-newer vehicles disclose for the first 20 years. There is no separate ordinary damage form; a damaged vehicle handed to an insurer in a claim settlement is excise-tax exempt (§ 32-5B-2(13)), and salvage vehicles use a separate process.

The seller keeps the plates

South Dakota plates belong to the owner, not the car. The seller keeps the plates and can move them to another vehicle at the county treasurer (DOR). The seller may also file a Seller's Report of Sale with the DOR — online, in person, or by mail — to record the sale and limit later liability. There is no statutory report deadline, but § 32-3-27 gives the seller a lever: if the buyer misses the 45-day transfer deadline and the seller files a written complaint, the buyer commits a Class 2 misdemeanor.

The buyer's 45 days, 4% excise tax, and fees

The buyer must file the title application "within forty-five days after the date of assignment" (§ 32-3-26). South Dakota has no general sales tax on the vehicle; instead § 32-5B-1 imposes a 4% motor-vehicle excise tax on the purchase price "in lieu of" sales tax. Two common exemptions apply: a transfer without consideration between spouses, a parent and child, or siblings (§ 32-5B-2(4)), and a vehicle 11 or more model years old sold for $2,500 or less (§ 32-5B-2(12)). Add a $10 title fee (§ 32-3-18), a $10 lien notation, and registration; a title processed entirely by mail may carry a county administration fee of up to $25 (§ 32-3-18.1).

Inspection and insurance

South Dakota runs no periodic safety inspection and no emissions test for an ordinary passenger vehicle, and proof of insurance is not among the required titling documents. But liability insurance is required to drive: § 32-35-113 makes "every driver or owner of a motor vehicle ... at all times maintain in force one of the forms of financial responsibility," and failure is a Class 2 misdemeanor. Because the seller keeps the plates, the buyer registers for plates — or buys a 5-to-15-day temporary permit — before driving.

What trips people up

• Writing a low price on the bill of sale. The county books the tax out to NADA value if the stated price is below fair market value, so an artificially low price will not cut the 4% excise tax.
• Missing the 45-day window. A late title costs $1 per week up to $50, and past 90 days it is a Class 2 misdemeanor (§ 32-3-27).
• Leaving the plates on the car. Plates stay with the seller; the buyer gets new plates or a temporary permit before driving.
• Cross-outs on the title. The county treasurer rejects an altered title; an affidavit of correction or a duplicate is then required.

Common questions

Does the South Dakota title need to be notarized? No. The assignment, the application, and the bill of sale are not notarized in an ordinary transfer.

Is there sales tax on a private car sale? No general sales tax. Instead South Dakota charges a 4% motor-vehicle excise tax on the purchase price (§ 32-5B-1), with spouse, parent-child, and sibling transfers and older low-value vehicles exempt.

How long does the buyer have to transfer the title? Within 45 days of the assignment (§ 32-3-26). Later filings owe a weekly late fee, and past 90 days it becomes a misdemeanor.

Do I need an inspection or insurance? No safety or emissions inspection is required, but liability insurance is mandatory to drive (§ 32-35-113).

Statutes and sources

• SDCL § 32-3-18 — application to the county treasurer, the $10 title fee, and the assigned-title requirement. https://sdlegislature.gov/api/Statutes/32-3-18.html (accessed 2026-07-23)
• SDCL §§ 32-3-26 and 32-3-27 — the 45-day filing deadline and the late fee and misdemeanor penalties. https://sdlegislature.gov/api/Statutes/32-3-26.html (accessed 2026-07-23)
• SDCL § 32-3-4 — no vehicle may be licensed until a title is obtained. https://sdlegislature.gov/api/Statutes/32-3-4.html (accessed 2026-07-23)
• SDCL § 32-3-18.1 — the up-to-$25 county administration fee for a mailed title application. https://sdlegislature.gov/api/Statutes/32-3-18.1.html (accessed 2026-07-23)
• SDCL § 32-3-19 — false swearing on a title document is perjury. https://sdlegislature.gov/api/Statutes/32-3-19.html (accessed 2026-07-23)
• SDCL §§ 32-5B-1 and 32-5B-2 — the 4% motor-vehicle excise tax in lieu of sales tax and the transfer exemptions. https://sdlegislature.gov/api/Statutes/32-5B-1.html (accessed 2026-07-23)
• SDCL § 32-35-113 — mandatory financial responsibility (liability insurance) to drive. https://sdlegislature.gov/api/Statutes/32-35-113.html (accessed 2026-07-23)
• South Dakota DOR — Motor Vehicle — county-treasurer titling, the MV-1001 application, and the seller's bill of sale. https://dor.sd.gov/individuals/motor-vehicle/ (accessed 2026-07-23)
• Lawrence County (SD) Treasurer — Titles & Licensing — the 45-day rule, required documents, the 4% excise-tax basis and NADA book-out, and the $10 fees. https://www.lawrence.sd.us/326/Titles-Licensing (accessed 2026-07-23)