Williamson County property owners must have paid their 2017 property taxes in full by the end of January to avoid paying penalties and accruing interest. According to Tax Assessor and Collector Larry Gaddes, the most common payment options include:

  • Paying online Using a debit card, credit card or E-check, residents can pay online at www.wilco.org/propertytax. Paying by card requires a 2.19 percent vendor fee, andthere is a $1 vendor fee for E-checks.
  • By mail Mail payments to 904 S. Main St., Georgetown.
  • In person Residents are invited to schedule a same-day appointment at www.wilco.org/propertytax.
  • Drop it off A drop box is located to the right of the front door at 904 S. Main St., Georgetown. This service is available at the Georgetown office only.
For more information, visit www.wilco.org/propertytax, email [email protected] or call 512-943-1603. The county tax offices are open 8 a.m.-5:30 p.m. on Monday and 8 a.m.-4:30 p.m. Tuesday through Friday. With Tyler Technologies, the county developed an online property tax estimator in 2017 that instantly tabulates property tax based on input data. Users can search for any property within Williamson County by name, address or property identifier, input the property value and taxing units to calculate the property tax and pay it all from the same site. Click here to estimate your Williamson County property taxes.