Williamson County Property Tax Lookup, Payment and Rates Guide
A practical WilCo property tax guide for homeowners, buyers, landlords and investors who need to search a tax bill, pay online, check WCAD appraisal value, calculate taxes, apply for exemptions, protest value, review tax rates or search official public records.
🔒 Official Williamson County Property Tax Resources
How Williamson County Property Tax Works
Williamson County property tax has two separate jobs: WCAD appraises the property and handles exemptions/protests, while the Williamson County Tax Assessor-Collector bills, collects and distributes property tax money.
Texas has no state property tax. Local taxing units such as county, school district, city, MUD, emergency service district, community college or special district set tax rates. Your final bill can include several taxing units, not only the Williamson County government rate.
| Need | Best Official Place | What You Can Do |
|---|---|---|
| Pay property tax | Williamson County Tax Assessor-Collector | Pay online, by phone, mail, drop box or approved office method. |
| Search tax statement | Tax portal / Search My Property | View bill, payment status, tax year and property account details. |
| Check appraised value | Williamson Central Appraisal District | Review market value, taxable value, exemptions, ownership and appraisal notice. |
| Apply for exemption | WCAD | File homestead, over-65, disabled person, disabled veteran or other eligible exemptions. |
| Search deeds/liens | Williamson County Clerk | Search official public records, land recordings, liens, plats and releases. |
How to Look Up Williamson County Property Tax by Address, Owner or Account
Start with the official tax search for the bill and payment status. Then cross-check the WCAD property record for appraised value, exemptions and protest details.
1
Open the official Williamson County tax portal
Best for tax bill, payment and statement details
Use the official Williamson County Tax Assessor-Collector tax portal. This is the safest starting point when you want the tax balance, statement, receipt or payment status.
2
Check the WCAD property record
Best for value, exemption and protest information
Open the WCAD website and search the property. WCAD handles determining taxable property, value, taxable owner, exemptions, notices of appraised value and property value protests.
3
Match the correct property before paying
Avoid wrong account and wrong owner mistakes
Compare owner clue, situs address, legal description, account/property ID, tax year, taxing units, assessed/taxable value and amount due. This matters for new subdivisions, condos, trusts, builders and recently sold homes.
4
Review escrow status if you have a mortgage
Lender payment does not mean you should ignore the account
Williamson County notes that property owners whose taxes are escrowed by their lender may view billing information using the Search My Property system. Recheck after payment deadline to confirm lender payment posted.
How to Pay Williamson County Property Taxes Online, by Phone, Mail or Drop Box
Williamson County provides multiple payment options, including online payment, telephone payment, mail and drop box. Payments must be submitted correctly and on time to avoid penalty and interest.
Online payment
Use the official tax portal and confirm payment method details. Online payments made by 11:59 p.m. Central Time on January 31 are considered timely.
Phone payment
Williamson County lists telephone payments at 866-594-4215. Phone payments must also be completed by the official deadline time.
1
Start from the official payment options page
Avoid fake payment links and search ads
Open Williamson County’s official Payment Options page or tax portal. Read the vendor fee notice before card payment because convenience fees are passed to credit card users.
2
Pay by January 31 to avoid penalty and interest
2025 tax deadline is January 31, 2026
Williamson County states 2025 property taxes must be paid in full on or before Saturday, January 31, 2026 to avoid penalty and interest. The delinquency date is Sunday, February 1, 2026.
3
Use correct payee and mailing address
Important for check and money order payments
For mailed payments, Williamson County lists the Tax Office mailing address as 904 S Main Street, Georgetown, TX 78626. Checks and money orders should be made payable to Larry Gaddes, CTA.
4
Save receipt and recheck posting
Especially if lender or card processor is involved
Save confirmation number, receipt, tax year, account number, property ID, amount paid and payment method. Reopen the official account later to confirm the payment posted correctly.
Williamson County Property Tax Due Date, Statement Mailing and Delinquency
Williamson County states 2025 property tax statements will be mailed the week of October 20, and taxes must be paid by January 31, 2026 to avoid penalty and interest.
| Date / Stage | What Happens | What to Do |
|---|---|---|
| Week of October 20, 2025 | 2025 property tax statements are mailed. | Search online if you do not receive your statement. |
| Upon receipt | Taxes are due upon receipt of the statement. | Do not wait for a second notice if you already know you owe tax. |
| January 31, 2026 | Deadline to pay 2025 property taxes without penalty and interest. | Pay by 11:59 p.m. Central Time online/phone/drop box where applicable. |
| February 1, 2026 | Delinquency date for unpaid 2025 property taxes. | Use official payoff amount before paying late. |
Williamson County Property Tax Rates and Calculator
Williamson County adopted a 2025 county tax rate of $0.413776 per $100 valuation. But your full property tax bill can include school district, city, emergency service district, MUD, PID, community college and other local taxing units.
| Bill Factor | What It Means | Where to Check |
|---|---|---|
| Market/appraised value | Value determined by WCAD for the property. | WCAD property search. |
| Exemptions | Homestead, over-65, disabled, veteran and other reductions where eligible. | WCAD exemption record. |
| Taxable value | Value after exemptions and limitations are applied. | WCAD and tax statement. |
| Taxing units | County, school, city, MUD, ESD or other entities that tax the property. | Tax statement and WilliamsonPropertyTaxes.org. |
| Tax rate | Rate per $100 valuation set by each taxing unit. | County tax rate page and property tax database. |
County tax rate
The 2025 Williamson County adopted tax rate is $0.413776 per $100 valuation.
School district impact
School taxes are often a large part of the full bill, so check the actual property statement.
MUD / PID warning
Newer subdivisions may include MUD or PID taxes that change the total cost significantly.
WilCo Property Tax Tips That Save Money, Time and Stress
These practical checks help Williamson County homeowners avoid missed exemptions, wrong-account payments, escrow surprises, protest mistakes and MUD/PID shock.
Check WCAD before tax bill season
If the value or exemption is wrong, fix it before the bill arrives. The tax office generally collects based on certified values.
Do not compare only county rate
Your full bill may include school, city, MUD, PID and ESD rates. Compare total taxing units, not only county rate.
Escrow owners should still check
If your mortgage company pays taxes, verify the tax account after January 31. Escrow errors can still become your problem.
New buyers should check exemptions
The seller’s homestead exemption may not protect your future bill. File your own homestead exemption if eligible.
Protest with proof
Use comparable sales, photos, repair estimates, appraisal evidence and property-detail errors. Do not rely only on “tax is too high.”
Check MUD and PID before buying
A home in Round Rock, Georgetown, Leander, Liberty Hill or Hutto may carry special district taxes not obvious from listing price.
Williamson County Homestead, Over-65, Disabled and Veteran Exemptions
Property tax exemptions for Williamson County properties are handled by Williamson Central Appraisal District. Exemptions can reduce taxable value and may also trigger tax ceiling or installment options for some homeowners.
Residence homestead
For qualifying homeowners who occupy the property as their principal residence.
Over-65 / disabled
Eligible homeowners may qualify for additional exemptions, ceilings or installment options.
Disabled veteran
Disabled veterans and surviving spouses may qualify for Texas property tax benefits depending on rating and status.
1
Open the WCAD exemption resources
Do not file exemption with the tax office
Use Williamson Central Appraisal District for exemption filing and exemption questions. The Tax Assessor-Collector collects the tax bill but does not determine eligibility for exemptions.
2
Confirm the exemption appears on your property
Filing and approval are not the same thing
After applying, check the WCAD record and the tax statement. If the exemption is missing, contact WCAD early instead of waiting until late January.
3
Watch special rules after buying
Seller’s exemption may not continue for you
If you recently bought a home, do not assume the old owner’s exemption, ceiling or taxable value cap continues the same way. Check WCAD and file your own eligible exemption.
How to Protest Williamson County Appraisal Value
Property value protests are handled by Williamson Central Appraisal District and the Appraisal Review Board process. WCAD says property owners who wish to file a protest must do so before May 15 or within 30 days after a notice of appraised value is delivered.
Value too high
Use comparable sales, equity comparisons, appraisal reports and market evidence.
Property detail error
Check square footage, condition, year built, land size, improvements and classification.
Exemption issue
Check missing homestead, over-65, disabled, veteran or agricultural-related treatment.
1
Review your Notice of Appraised Value
Deadline and online passcode matter
Look for the appraised value, exemption details, protest deadline and online protest eligibility. Some notices include an online passcode and watermark for online filing.
2
File online when eligible
Use WCAD online protest instructions
WCAD says if your appraisal notice has an online passcode and watermark, you can search for your property and click the icon to file a protest online instead of mailing the notice of protest.
3
Build evidence before hearing
Evidence beats emotion
Prepare comparable sales, photos of damage or condition, repair estimates, closing disclosure, appraisal report, builder defects, flood/drainage issues or data showing unequal appraisal.
Williamson County Property Records, Deeds, Liens and Official Public Records
Tax records, appraisal records and land records are different. A tax statement shows what you owe. WCAD records show appraisal value and exemptions. County Clerk official public records show deeds, liens, plats, releases, restrictions and recorded instruments.
Tax record
Useful for tax bill, payment status, receipt, due date and taxing units.
Official public record
Useful for deeds, liens, plats, release of liens, restrictions, notices and title research clues.
1
Open the County Clerk records search page
Best starting point for official public records
Williamson County Clerk records include official public records such as land recording, liens, plats, releases of liens, IRS liens, restrictions, notices, assumed names and related filings.
2
Do not treat tax lookup as a title search
Tax owner and legal title questions are not the same
Use the County Clerk record system and professional title help for deed, lien, ownership-chain, mortgage, probate, easement, boundary or foreclosure questions.
Williamson County Tax Office Address, Phone and Map
Use the Tax Assessor-Collector for payments and tax statements. Use WCAD for appraisals, exemptions and protests. Always check official office pages before visiting because holiday hours and branch availability can change.
Williamson County Tax Office
904 S Main Street, Georgetown, TX 78626
Phone: 512-943-1601. Use official pages for current contact, hours and branch instructions.
Tax Assessor-Collector
Use for property tax statements, payment, receipts, delinquent tax collection, payment methods and account questions.
Williamson Central Appraisal District
Use for market value, taxable value, exemptions, property owner details, appraisal notices and protests.
Williamson County Homeowner and Buyer Property Tax Checklist
Use this checklist before paying, buying, protesting, applying for exemptions, checking escrow or comparing homes in different WilCo neighborhoods.
| Check | Why It Matters | Official Place |
|---|---|---|
| Tax account | Needed for statement, payment and receipt lookup. | Tax portal / Search My Property |
| WCAD value | Appraised and taxable value drive the tax calculation. | Williamson Central Appraisal District |
| Exemptions | Missing homestead or age/disability exemptions can cost money. | WCAD exemption record |
| Taxing units | School, city, MUD, PID and ESD rates can change the full bill. | Tax statement / property tax database |
| Payment deadline | Penalty and interest begin after delinquency date. | Williamson County property tax page |
| Official public records | Needed for deed, lien, plat and title-related research. | County Clerk records search |
Official Williamson County Property Tax Links to Save
Use these official resources for WilCo property tax lookup, payment, appraisal, exemptions, protests, tax rates and official public records.
Appraisal and exemptions
Williamson County Property Tax Lookup, Pay and Rates FAQ
Quick answers for the most common WilCo property tax searches.
Where do I pay Williamson County property tax online?▾
Use the official Williamson County Tax Assessor-Collector tax portal at tax.wilcotx.gov or start from the official WilCo Property Tax page.
How do I look up Williamson County property tax by address?▾
Use the Williamson County tax portal for tax statement and payment details. Use WCAD property search to confirm appraised value, taxable value, exemptions and owner information.
When are Williamson County property taxes due?▾
For 2025 property taxes, Williamson County states payment must be made in full on or before January 31, 2026 to avoid penalty and interest. The delinquency date is February 1, 2026.
What is the Williamson County property tax rate?▾
The 2025 adopted Williamson County tax rate is $0.413776 per $100 valuation. Your full bill may include several other taxing units, so review the official tax statement.
How do I calculate WilCo property tax?▾
Use the county formula: tax rate multiplied by taxable value divided by 100. For a complete bill, add each taxing unit’s rate and use the official taxable value after exemptions.
Who handles Williamson County homestead exemptions?▾
Williamson Central Appraisal District handles property exemptions, including residence homestead and other qualifying exemptions. The tax office collects the bill but does not approve exemptions.
How do I protest a Williamson County appraisal?▾
Use WCAD protest resources. WCAD says property owners who wish to file a protest must do so before May 15 or within 30 days after a notice of appraised value is delivered.
Where do I search Williamson County deeds and liens?▾
Use Williamson County Clerk records search for official public records such as land recordings, liens, plats, releases of liens, restrictions and notices.
Is PropertyTaxUSA.org an official Williamson County website?▾
No. PropertyTaxUSA.org is an independent informational guide. Always use official Williamson County Tax Assessor-Collector, WCAD and County Clerk resources for payments, exemptions, protests and property-specific decisions.