Williamson Property Tax Rates 2026 – Calculator & Phone

Williamson Property Tax rates for 2026 are posted on the Williamson County Tax Assessor-Collector website, where owners can view the 2026 property tax bill Williamson County issues and use the property tax calculator Williamson TX to estimate dues. The online property tax statements Williamson portal displays the parcel number lookup Williamson County property tax feature, school district tax rate Williamson County figures, and any tax delin delinquency fees Williamson County may apply after the property tax payment deadline Williamson County. If you need the Williamson County tax collector contact number, call (512) 943‑1601 or email proptax@wilco.org for assistance with exemptions, including the homestead exemption Williamson County Texas. Detailed guidance on how to appeal property tax in Williamson and the assessment appeal process is also available through the official search link.

Williamson Property Tax relief programs in Texas help qualifying homeowners reduce their burden, while the property tax penalties and interest Williamson schedule warns of added costs for late payments. The Williamson County tax assessor office also lists property tax exemption options, property tax refund eligibility Texas criteria, and steps to dispute property valuation Williamson County. Residents can explore the county tax roll search Williamson tool, review real estate tax history Williamson County, and learn about the property tax lien information Williamson County before filing an appeal. For any questions, the Williamson County Tax Assessor-Collector office at 904 S. Main St., Georgetown, TX 78626 remains the authoritative source.

Search Williamson County Property Tax

To find Williamson County property tax records, visit the official Williamson County Tax Assessor-Collector website. The office provides a public search portal for looking up bills, payment status, parcel numbers, and current amounts owed using this online tool.

The search process works in three simple steps. First, open the search portal on the official county website. Second, type in the property address, owner name, or parcel number. Third, review the results showing the tax amount, exemptions, and the year of the bill.

Steps to Look Up a Tax Bill Online

1. Go to the official search page on the county tax office website
2. Choose to search by owner name, property address, or parcel ID
3. Type the requested details into the search field
4. Click the search button to see the property record
5. Review the current tax balance, prior years, and exemption status
6. Print or save the page for your records

If the online tool does not show what you need, contact the tax office during business hours. Staff can help with questions about bills, exemptions, and payment plans.

Property Tax Rates in Williamson County

Property tax rates in Williamson County are set each year by local taxing units. These units include the county, cities, school districts, and special districts. Each unit votes on its own rate. The total rate combines all of these into one number shown on the tax bill.

To find the current rates for each entity, visit the Williamson County Tax Assessor-Collector page. The site lists the rates adopted for the current tax year. You can also find them in the budget documents posted by each school district and city.

Entities That Set Tax Rates

• Williamson County government
• City of Georgetown, Round Rock, Cedar Park, Leander, and other cities
• School districts like Georgetown ISD, Round Rock ISD, and Leander ISD
• Special districts such as water control and improvement districts
• Junior college districts in the area

Texas has no state property tax. Local units set their own rates based on the budgets they approve. The Williamson Central Appraisal District sets property values, but it does not set tax rates.

Williamson County Tax Assessor Office Functions

Williamson County Tax Assessor-Collector Larry Gaddes oversees the office that handles billing, collecting, and distributing property taxes. The office mails tax statements each fall. It processes payments, tracks delinquencies, and issues receipts to property owners.

Other duties include administering exemptions, keeping tax records, and providing customer service. The office also registers vehicles and handles other state-mandated tax functions for the county.

Main Services Provided

The office works closely with the Williamson Central Appraisal District, which determines the value of each property. The assessor-collector cannot change property values. That task belongs to the appraisal district only.

Property Tax Payment Methods and Deadlines

Williamson County property taxes are due each year by January 31. If January 31 falls on a weekend or holiday, the deadline moves to the next business day. Payments postmarked by the deadline are considered on time.

Property owners can pay in several ways. The office accepts payment by mail, in person, online, or through a bank account transfer. Each method has its own processing time and any applicable fees.

Payment Options

• Online payment using a credit card, debit card, or e-check (credit and debit card payments incur additional vendor fees; e-check or ACH payments are free)
• Payment by mail to the office mailing address
• In-person payment at the Georgetown office
• Payment by phone through the automated system
• Payment through a mortgage escrow account

Check the official county tax office website for the exact deadline each year. The site also lists any updates to payment options and accepted methods.

Property Tax Exemptions Available

Texas law allows several property tax exemptions. These lower the taxable value of a property. Common exemptions in Williamson County include homestead, senior, disability, and veteran exemptions.

To receive an exemption, the owner must file an application with the appraisal district. The form requires proof of eligibility, such as an ID, disability letter, or discharge papers. Most exemptions apply only to the primary residence.

Common Exemption Types

Homestead exemption filings go to the Williamson Central Appraisal District, not the tax office. The tax office then applies the exemption to the bill. Filing once keeps the exemption in place for following years.

Homestead Exemption Details in Williamson County

The homestead exemption reduces the taxable value of a primary residence. In Texas, the standard homestead exemption lowers the value for school district taxes. Some local units offer extra homestead savings. Check with the Williamson Central Appraisal District for the current exemption amounts and eligibility rules.

To file, the owner must own the home and use it as the main residence on January 1 of the tax year. The application asks for the date the owner began living at the address. Renters cannot file for a homestead exemption.

Required Documents for Filing

• Valid Texas driver’s license or state ID with the property address
• Copy of the deed or other proof of ownership
• Social Security number for each owner listed on the deed
• Date the property became the owner’s primary residence
• Any other forms the appraisal district requests

If the homeowner turns 65 or becomes disabled after the exemption is filed, the appraisal district updates the record. The owner only needs to file the main homestead form once.

How to Appeal Property Tax in Williamson County

Property owners who disagree with the appraised value can file a protest. The protest is filed with the Williamson Central Appraisal District. The deadline to file is set by state law, typically within 30 days after the notice of appraised value is mailed. Check with the Williamson Central Appraisal District for the current deadline.

The protest can be filed online, by mail, or in person. Owners should gather evidence to support their claim. This may include recent sales of similar homes, photos, or repair estimates.

Steps in the Appeal Process

1. Review the Notice of Appraised Value mailed in April or May
2. Decide if the value is higher than what the home could sell for
3. File a protest form with the appraisal district before the deadline
4. Provide supporting documents like comparable sales
5. Attend the hearing either in person, by phone, or by written affidavit
6. Receive a decision from the Appraisal Review Board

Most protests resolve at the hearing level. If the owner still disagrees, the next step is to file a court case. The deadline for legal action is set by state law. Check with the appraisal district or an attorney for the current time limits.

Property Tax Assessment Appeal Process

The appeal process begins with the Williamson Central Appraisal District. After filing, the case goes to the Appraisal Review Board. The board hears evidence from the property owner and the appraisal district.

Owners may represent themselves or hire a property tax agent. Some owners also choose to work with an attorney. Either way, the burden of proof is on the owner to show the value is too high.

Evidence That Helps an Appeal

• Recent sales of similar homes in the same neighborhood
• Photos showing damage or needed repairs
• Independent appraisals from a licensed appraiser
• Records of low rental income for investment properties
• Construction cost data for new buildings

Property owners should keep copies of all filed forms and mailed documents. The appeal may take several months to resolve. The tax bill becomes due during the appeal, so owners should still pay on time to avoid penalties.

Property Tax Penalties and Interest in Williamson County

Texas law requires penalties and interest on late property tax payments. These charges begin on February 1 of the year after the tax year. The amounts increase the longer the tax remains unpaid. Refer to the official county website for the current penalty schedule.

Interest also accrues at the rate set by state law. Interest begins accruing from the original due date. The interest rate can change each year based on a state formula.

Tax Delinquency Fees in Williamson County

Delinquent taxes create extra costs for the property owner. These costs include penalties plus attorney’s fees if the case goes to collections. The county can also place a tax lien on the property.

After several years of nonpayment, the property may go up for sale at a tax foreclosure auction. The owner loses the right to the property if the taxes remain unpaid through the court process.

Actions Taken on Delinquent Accounts

• Monthly penalty additions on February 1 and July 1
• Notice of delinquency mailed to the property owner
• Collection action through an attorney after July 1
• Tax lien recorded against the property
• Possible foreclosure lawsuit after several years

Property owners who fall behind should contact the tax office right away. The office can explain payment plan options. Paying even a small amount stops the case from moving forward to lawsuit.

Property Tax Lien Information for Williamson County

A property tax lien is a legal claim against a property for unpaid taxes. The lien attaches to the property for that year’s taxes and stays until the tax is paid in full.

Tax liens take priority over most other claims on a property. This means a tax lien gets paid before mortgage holders in some cases. Buyers should always check the tax status before closing on a home purchase.

How to Check for Tax Liens

1. Visit the tax office search portal on the official county website
2. Look up the property by address or parcel number
3. Review the payment history for each year
4. Check for any outstanding balance from prior years
5. Contact the tax office if any balance appears unclear

Tax liens release automatically after the tax is paid. The office issues a release document that gets recorded with the county clerk. Buyers and lenders can request a tax certificate showing the current status.

Parcel Number Lookup for Williamson County Property Tax

Every property in Williamson County has a unique parcel number. This number, also called a Property ID, links to the appraisal record. The tax office uses the same number to track tax bills.

Owners can find the parcel number on the Notice of Appraised Value sent each spring. The number also shows on the tax statement mailed each fall. Buyers can request the parcel number from the seller or their agent before closing.

Ways to Find a Parcel Number

• Review the Notice of Appraised Value from the appraisal district
• Check the current tax statement mailed by the tax office
• Search the county property database on the official tax office website
• Ask the title company or real estate agent for the number
• Visit the Williamson Central Appraisal District office at 625 FM 1460, Georgetown, Texas 78626-8050

Having the parcel number ready speeds up any office visit or phone call. It also helps when searching for property information on multiple websites.

Online Property Tax Statements in Williamson County

Property tax statements are mailed each year in October. The statement shows the amount due, exemptions applied, and the deadline. The same information is available online at the tax office website.

Owners who pay through a mortgage escrow account still receive a statement. The statement serves as a record even if the mortgage company sends the payment. The online version updates as payments post.

What the Statement Shows

The online statement acts as an official record. Owners can print it for tax preparation or personal records. It is accepted by most mortgage companies and tax preparers.

County Tax Roll Search for Williamson County

The county tax roll is the official list of all properties and their tax status. The tax roll updates each year as new values and exemptions post. The roll is open to public view.

Anyone can search the tax roll through the online portal. Real estate agents, title companies, and researchers use the roll often. The data helps confirm ownership and tax standing before a sale.

Information Available in the Tax Roll

• Property owner name and mailing address
• Legal description of the property
• Appraised value and exemptions
• Tax amounts due for the current and prior years
• Payment history and any balance owed

The tax roll data is updated regularly. Owners checking the roll for accuracy can contact the tax office to report any errors. Errors get corrected through the appraisal district process.

Real Estate Tax History in Williamson County

Tax history shows what a property has paid in past years. This data is helpful when buying a home. Lenders require the history before approving a loan. Title companies also use the data to clear the closing.

The tax office provides multiple years of history on the online portal. Older records may require a written request or a visit to the office. Each year appears as a separate line item on the property detail page.

Using Tax History When Buying a Home

1. Search the property on the official tax office website
2. Click the payment history tab or section
3. Review the past years of tax amounts
4. Look for any unpaid balance from prior years
5. Share the history with the lender and title company

Tax history also reveals patterns in the local tax rate. Rising taxes over time can signal growing local services. Buyers should ask their agent about the reason for any large jumps.

Property Tax Relief Programs in Texas

Texas offers several property tax relief programs. These programs help certain property owners lower their tax bill. The programs include homestead caps, senior freezes, and disabled veteran benefits.

Most relief programs apply at the local level through the appraisal district. Owners must meet the rules and file the required forms. Once approved, the relief continues each year without reapplying.

Main Relief Programs Available

• Homestead cap that limits yearly school tax increases
• Senior tax freeze that locks the amount owed at age 65
• Disabled veteran exemption up to the full value of the home
• Property tax deferral for owners age 65 or older
• Charitable organization property tax exemption

The Texas Comptroller’s office also administers a temporary rent relief program. This program helps renters whose landlords pay lower property taxes. The savings show up as a credit on the renter’s monthly bill.

Property Tax Refund Eligibility in Texas

A property tax refund may be available in certain cases. Common reasons include overpayment, double payment, or payment for a property the owner no longer owns. Refunds must be requested through the tax office.

To request a refund, the owner files a written claim. The claim explains the reason for the refund and shows proof of the issue. The tax office reviews the claim and either approves or denies it.

Common Refund Situations

• Payment made twice for the same year
• Payment made after a sale when the buyer was responsible
• Payment made for a property in a different county by mistake
• Payment for a year that received a court-ordered exemption after payment
• Overpayment due to a miscalculation by the tax office

Refund claims should be filed soon after the overpayment is found. The tax office can only issue refunds within a certain time period set by state law. Owners should keep records of all payments for at least five years.

Property Tax Audit Procedures in Williamson County

The appraisal district conducts property tax audits in some cases. An audit checks the accuracy of the property record. The audit looks at sales history, building permits, and on-site inspections.

Most properties are not audited each year. The appraisal district uses a computer system to spot records that may need review. The system flags properties with changes that did not get reported.

Triggers for a Property Tax Audit

• Recent sale of the property at a different value than on the record
• Building permits filed showing new construction or additions
• Income reported for commercial properties that seems too low
• Homestead exemption filings that raise red flags
• Tips from the public about unpermitted changes

Owners who receive an audit notice should respond promptly. The notice explains what information to provide. Failing to respond can result in a value change based on the best data available to the district.

School District Tax Rates in Williamson County

School district tax rates make up a large portion of the total property tax bill. Each school district in Williamson County sets its own rate. The rate funds the schools operating budget and any bond debt.

Districts in the area include Georgetown ISD, Round Rock ISD, Leander ISD, Liberty Hill ISD, Taylor ISD, Coupland ISD, and others. The rate varies from district to district. Buyers should check the rate before choosing a home.

Sample of District Tax Roles

School board members vote on the tax rate each year. Public hearings on the rate take place before adoption. Residents can attend the hearings and speak for or against the proposed rate.

Property Tax Calculator for Williamson County

Property owners can estimate their tax bill using a property tax calculator. The calculator uses the appraised value, exemptions, and local tax rate. The result gives a close estimate of the yearly tax bill.

Most online calculators let the user type in the property value and exemptions. The tool then multiplies the taxable value by the combined local rate. The output is a dollar amount for the estimated bill.

Steps to Use a Property Tax Calculator

1. Find the appraised value on the notice from the appraisal district
2. Add up all exemption amounts that apply
3. Subtract exemptions from the appraised value to get the taxable value
4. Find the total tax rate for the area from the tax office site
5. Multiply the taxable value by the rate to get the estimated bill

For exact figures, owners should use the actual bill from the tax office. The calculator gives a general idea, not a legal tax bill. Yearly changes in value or rate can shift the actual amount.

Williamson County Clerk’s Office and Records

The Williamson County Clerk’s Office keeps property records for the county. The clerk records deeds, liens, and other documents tied to property. These records prove who owns each piece of land.

Property records are public. Anyone can search them online or visit the office in person. The records help with title searches, legal disputes, and family history research.

Records Kept by the County Clerk

• Warranty deeds and quitclaim deeds
• Deed of trust and mortgage documents
• Liens and releases on property
• Plats and surveys of land divisions
• Miscellaneous property-related filings

The clerk’s office maintains a public search system. The site lets users look up records by name, document type, or recording date. Official copies of records can be ordered through the office.

Contact, Local Details, and Map

The Williamson County Tax Assessor-Collector office is the main point of contact for property tax questions. The office handles billing, payments, and exemption information for property owners across the county. Larry Gaddes serves as the current Tax Assessor-Collector.

Tax Assessor-Collector Office

• Department Name: Williamson County Tax Assessor-Collector (Larry Gaddes)
• Office Mailing Address: 904 S. Main St., Georgetown, TX 78626

Williamson Central Appraisal District (WCAD)

• Department Name: Williamson Central Appraisal District (WCAD)
• Office Address: 625 FM 1460, Georgetown, Texas 78626-8050

Frequently Asked Questions

Williamson Property Tax officials handle bill delivery, payment processing, and exemptions for homeowners in Georgetown and surrounding areas. Knowing where to find rates, deadlines, and appeal steps helps avoid penalties and can lower your bill. Below are quick answers to the most common queries.

What are the current Williamson County property tax rates for 2026?

The 2026 tax roll lists a combined rate of about 2.20 percent of the assessed value. This includes the county portion, school district rates, and any special district levies. Rates may shift slightly each year, so check the latest schedule on the Tax Assessor‑Collector website before calculating your bill.

How can I pay my Williamson Property Tax online?

Visit the official portal at https://www.wilco.org/tax/search. Enter the parcel number or address, review the balance, and choose credit card, ACH, or e‑check. Credit cards add a vendor fee; ACH payments are free. After payment, a receipt emails to the address on file.

Where do I find the homestead exemption details for Williamson County?

The homestead exemption reduces the taxable value by $25,000 for owner‑occupied homes. Apply online through the same search portal or submit a paper form to 904 S. Main Street. Required documents include a driver’s license and proof of residence. Approval appears on the next tax statement.

What steps must I follow to appeal a property tax assessment in Williamson County?

First, gather the appraisal notice and any supporting evidence such as recent sales data. File a protest online within 30 days of the notice date. Attend a hearing with the Appraisal Review Board and present your case. If the board denies the protest, you may request a trial before the district court.

How do I contact the Williamson County Tax Assessor‑Collector for help?

Call (512) 943-1601 during office hours or email proptax@wilco.org. For in‑person assistance, visit 904 S. Main Street, Georgetown, TX 78626. The staff can answer questions about bills, exemptions, payment options, and appeal deadlines.