BillOfSaleNow

Round Rock, Texas

Round Rock DMV — Bill of Sale & Title Transfer

Texas vehicle title transfer office for Round Rock and Williamson County. Get your Round Rock bill of sale, find local fees, and file at the Williamson County Tax Assessor-Collector – Round Rock.

Round Rock Title & Registration Office

Office Name

Williamson County Tax Assessor-Collector – Round Rock

Address

218 E Main St, Round Rock, TX 78664

Phone

(512) 274-8000

Hours

Mon–Fri 8:00 AM–4:30 PM

Title Transfer Fee

$28.00

Vehicle Sales Tax

8.25%

Special requirements in Williamson County:

  • Complete Texas Application for Texas Title (Form 130-U) at the Williamson County tax office
  • Title transfer must be completed within 30 days of sale to avoid a $25 penalty
  • Seller must provide a signed title and odometer disclosure
  • Vehicle must pass a Texas safety inspection before registration transfer

Notarization in Round Rock: ✓ Not Required

Texas does not require notarization for a private-party vehicle sale. A signed bill of sale and completed Form 130-U are sufficient.

Documents Required for Round Rock Title Transfer

  • 1Signed vehicle title (seller signs the back)
  • 2Completed bill of sale
  • 3Valid government-issued photo ID
  • 4Payment for title transfer fee: $28.00
  • 5Payment for sales tax: 8.25% of sale price
  • 6Odometer disclosure statement (for most motor vehicles under 10 years old)
  • 7Insurance proof (varies — check with the office)

FAQ — Round Rock DMV

Where is the DMV in Round Rock, Texas?
The Round Rock title office is the Williamson County Tax Assessor-Collector – Round Rock, located at 218 E Main St, Round Rock, TX 78664. Hours: Mon–Fri 8:00 AM–4:30 PM. Phone: (512) 274-8000.
What is the vehicle title transfer fee in Round Rock?
The title transfer fee in Williamson County is $28.00. The vehicle sales tax rate is 8.25%. Texas state rate 6.25% + Williamson County/Round Rock local rate 2.00%
What documents do I need to transfer a vehicle title in Round Rock?
You need the signed vehicle title, a completed bill of sale, a valid photo ID, and payment for the $28.00 title fee plus 8.25% sales tax.
Is a bill of sale required for a vehicle sale in Round Rock?
A signed bill of sale is required by the Williamson County Tax Assessor-Collector – Round Rock to document the private sale and process the title transfer. Generate one free at BillOfSaleNow — fill in online, download a PDF in 60 seconds.

Trusted by private vehicle sellers nationwide

45% faster sale

Vehicles whose listings include a history report spend ~45% less time on site before selling, and report-viewers are 5x more likely to become a lead.

Source: Experian / AutoCheck

$4,000 avg loss

NHTSA estimates 450,000+ vehicles per year are sold with rolled-back odometers — the average victim loses about $4,000 in downstream repair costs.

Source: NHTSA

17.5M private sales/yr

About 17.5 million private-party vehicle transactions happen in the U.S. each year — roughly 47% of the used market.

Source: Cox Automotive 2024

1 in 3 buyers

Roughly 1 in 3 used-car buyers say they suspect private sellers are hiding mechanical problems — documentation closes that trust gap.

Source: JW Surety Bonds (n=3,000)

$60–$85 mobile notary

Mobile notary visit minimums run $60–$85 — higher on weekends, plus per-mile travel fees. State-formatted documents skip the trip.

Source: Thumbtack / NNA