Free Iowa Used Car Bill of Sale
Used-car private sales in Iowa are buyer-beware: there is no state lemon law for private sales, no required safety inspection, and no cooling-off period. The county treasurer will calculate the 5% one-time registration fee on whichever is HIGHER — your bill of sale price or NADA clean retail. So writing "$1" on a $15,000 truck does not save the buyer money; the treasurer will use NADA. Form 411121 (Iowa bill of sale) plus Form 411007 (title application) at the buyer's county treasurer within 30 days completes the transfer. Remember: the 5% fee is NOT a sales tax — Iowa has none on vehicles.
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Iowa Used Car Bill of Sale — What You Need to Know
Sales Tax Details
Iowa's 5% one-time registration fee applies to used-car private sales — calculated on the actual purchase price OR NADA clean retail value, whichever is higher. This is NOT a sales tax. The county treasurer will look up NADA if your bill of sale price seems low.
Exemption: Transfers between spouses, parents/children, grandparents/grandchildren, and siblings can be exempt from the 5% fee. Gifts from non-family also exempt if no consideration is paid — bring documentation.
Inspection Requirements
No safety or emissions inspection required for used-car private sales between Iowa residents. Vehicles brought in from out of state need a one-time VIN verification by an Iowa peace officer or treasurer staff before first-time Iowa titling.
Registration
Registration for this vehicle type is handled by County Treasurer's Office (buyer's county of residence) — not the same agency that handles cars in Iowa. Plan for separate filings.
Iowa Used Car Sale — Step-by-Step Checklist
- Run a vehicle history report (Carfax/AutoCheck) and verify the VIN matches the title and dashboard
- Test drive, inspect for rust (huge issue in Iowa winters), check title for liens or salvage brand
- Complete Form 411121 with accurate purchase price — treasurer uses higher of price or NADA for the 5% fee
- Seller signs title assignment, completes federal odometer disclosure (vehicles under 20 model years old)
- Buyer takes title, 411121, Form 411007, ID, and insurance to their county treasurer within 30 days
- Pay 5% one-time fee (NOT sales tax), $25 title fee, plus prorated annual registration
- Seller files Notice of Sale with Iowa DOT to release liability
Common Pitfalls
- Underreporting price on the bill of sale wastes effort — Iowa treasurers cross-check NADA and use the higher number, costing you the same 5%
- Buying a salvage-branded title without realizing it tanks resale value 30-50% and can void some insurance coverage
- Skipping a pre-purchase inspection on a winter-belt Iowa vehicle hides $2,000-$5,000 in rust repair on frame and brake lines
- Missing the 30-day titling deadline costs $5/month plus interest at the treasurer
- Failing to verify a clean lien release on the title means the lender can repo the car from the new buyer
Pro Tip
Iowa used-car deals close at the county treasurer with Form 411121, Form 411007, and the 5% one-time fee — not sales tax — within 30 days.