Last updated 2026-07-09
TL;DR
Williamson County, Texas homeowners who own and occupy a primary residence on January 1 qualify for a general homestead exemption of at least $100,000 off school district taxable value under HB 3 (2023). Extra exemptions cover seniors 65+, disabled homeowners, and veterans. File by April 30. You file once, and it renews automatically.
What is the Williamson County homestead exemption?
The Williamson County homestead exemption cuts the taxable value of your home before the tax rate gets applied. It is not a credit that comes off your final bill. It shrinks the value the rate multiplies against. That difference matters. A $100,000 exemption in a jurisdiction with a combined rate of 1.8% saves you $1,800 a year, not $100,000.
Texas law decides who can offer exemptions and sets the floors. But each local taxing unit (school districts, the county, cities, MUDs) stacks its own exemptions on top. So when people say "the Williamson County homestead exemption," they usually mean the whole stack: the mandatory school district exemption under state law, plus whatever the county and individual cities have added.
The big number right now is the school district general homestead exemption. House Bill 3, passed by the Texas Legislature in 2023, raised it from $40,000 to $100,000 [1]. For most Williamson County homeowners, whose school district tax is their largest line item, that one change is worth well over $1,000 a year.
Williamson County (the county taxing unit itself) adds a general homestead exemption of 20% of appraised value, with a minimum benefit of $5,000 [2]. Cities inside the county, including Round Rock, Georgetown, Cedar Park, and Leander, layer on their own percentage or flat exemptions. You do not file separately for each one. A single application to the Williamson Central Appraisal District covers all of them.
Who qualifies for the Williamson County homestead exemption?
The core test is short: you own the property and use it as your principal residence on January 1 of the tax year [3]. Texas sets no minimum ownership period before you can file. So if you closed in late 2024 and it was your primary home on January 1, 2025, you can apply for the 2025 tax year.
A few specifics trip people up.
You can claim only one homestead in Texas. Own two homes? Pick the one where you actually live. You cannot claim both.
The property has to be a residence homestead, meaning a structure used as a home. That includes manufactured homes classified as real property on land you own or lease [3].
Own the property through a qualifying trust? You may still be eligible, but the deed and trust documents have to be set up right. WCAD's application instructions spell out the trust rules. Read them before you file.
You do not have to be a U.S. citizen. Texas Tax Code Section 11.13 sets no citizenship requirement for the general homestead exemption [3].
You do have to occupy the home. Rentals, vacation houses, and investment properties are out. If you move out temporarily for medical care, military deployment, or work, you may still qualify, as long as you intend to return and you are not renting the place out while you are gone.
How much does the exemption actually save you?
Your savings depend on where in Williamson County you live, because your total rate is the sum of every taxing unit with jurisdiction over your parcel. A home in Round Rock ISD pays a different combined rate than one in Georgetown ISD, and both differ from Liberty Hill ISD.
The table below breaks down the general homestead exemption for a typical Williamson County property in Round Rock ISD, using 2024 tax year figures [2][4]. It leaves out city, MUD, and special district exemptions, which change by address.
| Taxing Unit | Exemption Type | Amount |
|---|---|---|
| Round Rock ISD (school) | General homestead | $100,000 off appraised value |
| Williamson County | General homestead | 20% of appraised value (min $5,000) |
| State of Texas | No property tax | N/A |
For a home appraised at $450,000:
- School district taxable value: $450,000 minus $100,000 = $350,000
- County taxable value: $450,000 minus $90,000 (20%) = $360,000
At a blended example rate near 1.75%, those cuts add up to roughly $1,750 to $2,000 a year. Your real number depends on your appraisal and your specific rates, both of which you can verify on WCAD's property search [2].
One more thing. Texas caps the appraised value increase on a homestead at 10% a year once the exemption is in place [3]. That cap does not apply in years before a new owner has filed. File fast after you buy and you lock in that protection.
What extra exemptions exist for seniors and disabled homeowners?
If you are 65 or older, or you qualify as disabled under the Social Security Administration's definition, Williamson County adds real money on top of the general exemption.
The school district adds $10,000 to the general homestead exemption for seniors and disabled homeowners, for a total school district exemption of $110,000 under current law [3]. Some Texas school districts also offer local-option senior exemptions beyond that.
The bigger prize for many seniors is the school district tax freeze, sometimes called the senior tax ceiling. Once you turn 65 and have your homestead exemption on file, your school district taxes freeze at the dollar amount you paid that year [3]. Home value climbs? Rate climbs? Your school district bill still cannot go up while you live in the home. It can drop (if the rate falls or you gain exemptions), but it cannot rise. This is one of the strongest property tax protections Texas offers.
Williamson County itself also offers a senior exemption. As of the 2024 tax year, the county gives homeowners 65 or older an extra $25,000 exemption [2]. Some cities in the county freeze or cap senior taxes too.
Disabled veterans get their own set of exemptions tied to their VA disability rating. A veteran with a 100% rating (or one who is unemployable) gets a full exemption on the residence homestead, meaning zero property tax on that home [3]. Partial exemptions apply at lower ratings:
| VA Disability Rating | Exemption Amount |
|---|---|
| 10% to 29% | $5,000 off appraised value |
| 30% to 49% | $7,500 off appraised value |
| 50% to 69% | $10,000 off appraised value |
| 70% to 99% | $12,000 off appraised value |
| 100% or unemployable | Full exemption |
Veterans' exemptions and the standard homestead exemption stack. A 100% disabled veteran who is also 65 gets both the full exemption and the senior freeze, though the full exemption makes the freeze mostly moot.
Spouses of veterans who died in service, or from a service-connected cause, may also qualify for a full exemption. These surviving spouse exemptions carry specific requirements under Texas Tax Code Section 11.131 [3].
What is the filing deadline for the Williamson County homestead exemption?
The standard deadline is April 30 of the tax year you want the exemption for [3]. If April 30 lands on a weekend or holiday, it moves to the next business day.
Here is the practical timeline for a new homeowner:
| Situation | Deadline | Notes |
|---|---|---|
| Bought home before Jan 1, 2025 | April 30, 2025 | File for 2025 tax year |
| Bought home Jan 2 to April 30, 2025 | April 30, 2025 | Eligible if you occupied the home by Jan 1, 2025; if you closed after Jan 1 but it was already your primary home, file anyway and let WCAD apply the prorated rules |
| Missed the April 30 deadline | Up to 2 years late | You can still file a late application; a 10% penalty applies to the taxes that would have been reduced [3] |
| 65+ or disabled | Same April 30 deadline; freeze takes effect the year you qualify | Bring proof of age or disability when you file |
The late-filing window is real and useful. Bought in 2023 and never filed? You can file now and recover the savings for up to two prior years, minus the 10% late penalty. That penalty hits the tax savings, not your whole bill, so late filing usually still pays.
You file once. After year one, the exemption renews on its own as long as you keep the home as your primary residence [2]. WCAD sends a verification form now and then. Answer it promptly or the exemption can drop off.
Own property in another Texas county? See the how to file for homestead exemption in Texas guide for statewide steps, or the Denton County homestead exemption and Dallas County homestead exemption guides for neighboring counties.
How do you file the Williamson County homestead exemption application?
You file with the Williamson Central Appraisal District (WCAD), not the county tax office. They are separate agencies. WCAD decides who gets exemptions. The tax office collects the bills.
The form you need is the Texas Comptroller's Form 50-114, "Application for Residence Homestead Exemption" [9]. WCAD takes the state form or its own equivalent. Download it from WCAD's site or the Texas Comptroller's site.
What to include:
1. A copy of your Texas driver's license or state ID. The address on the ID has to match the property address. This is the number one reason applications get rejected. Moved recently and your license still shows the old address? Update it at DPS before you file [10].
2. If the property is a manufactured home, add a copy of the TDHCA statement of ownership and location, or other proof of ownership.
3. If the property sits in a trust, include the trust pages showing the trustee and beneficiary.
You can file:
- Online through WCAD's portal at wcad.org [2]
- By mail to WCAD at 625 FM 1460, Georgetown, TX 78626
- In person at the same address
WCAD processes the application and mails you a notice if something is missing or if it denies the request. Denied? You have the right to protest that decision to the Appraisal Review Board.
What happens after you file, and how do you know if your exemption was approved?
WCAD updates your property record, and you can check the status yourself. Search your property on the WCAD property search at wcad.org [2] and look at the exemptions column in your property details. Approved exemptions show as codes: "HS" for general homestead, "OA" for over-65, "DV" for disabled veteran, and so on.
Your Notice of Appraised Value, which usually shows up in April or May, also lists the exemptions being applied and your taxable value for each jurisdiction. Read it against what you expect.
If an exemption you applied for is missing from your notice, call WCAD right away. You have until the protest deadline (generally May 15 or 30 days after the notice, whichever is later) to protest the omission [3]. After that window shuts, your options get thin.
Once approved, the exemption stays put. You do not refile unless something changes: you move, you sell, or you stop qualifying. WCAD may send periodic verification requests, especially on age-based exemptions. Answer them.
Can you still protest your appraisal after getting the exemption?
Yes, and you should if the appraised value looks wrong. The exemption and the protest are separate tools that both work in your favor. The exemption cuts taxable value by a set amount or percentage. The protest challenges the appraised value itself. They stack.
Say WCAD appraises your home at $500,000 and you think it is worth $430,000. Win the protest and you save taxes on $70,000 of value, on top of your exemptions. That is easily another $1,000 a year or more.
The protest deadline is May 15 of the tax year, or 30 days after WCAD mails your Notice of Appraised Value, whichever is later [3]. File online through WCAD's e-file portal, by mail, or in person.
Contingency firms across Texas charge 30% to 50% of your first-year savings. That is a lot to hand over when your overassessment is clear from comparable sales. If the comps are on your side, doing it yourself is straightforward. A DIY property tax appeal kit like the one at TaxFightBack walks through evidence-gathering and the hearing step by step, so you keep 100% of what you win.
For more on the Texas protest process, the how to file for homestead exemption in Texas guide covers the appraisal timeline next to exemption filing.
Georgia homeowners run a different system entirely. See Georgia homestead exemption for how that state structures things, and does Texas offer property tax relief for seniors for more on the senior freeze.
How does Williamson County compare to other Texas counties and other states?
Williamson County's tax burden has climbed hard as the Austin metro spread north. Median home values in the county topped $430,000 in recent appraisal years, per WCAD data [2], and combined rates across much of the county run between 1.7% and 2.2%. That makes the homestead exemption worth more in raw dollars here than in lower-value markets.
Against neighboring Texas counties, Williamson's structure looks familiar. Travis County (Austin) uses the same state-mandated $100,000 school exemption. Denton County is essentially the same; the Denton County homestead exemption article runs a direct comparison.
Outside Texas, the picture shifts. Florida caps the homestead exemption at $50,000 for most homeowners under the Save Our Homes amendment, though it also caps annual assessment increases at 3% or the CPI change, whichever is lower (see the Florida homestead exemption article). Ohio's exemption is means-tested and far smaller in dollar terms (see homestead exemption Ohio). Georgia offers county and school exemptions that swing widely by county (see Georgia homestead exemption).
Cobb County, Georgia offers a basic homestead exemption of $10,000 on the county portion plus various school exemptions, but those numbers are tiny next to Williamson County's $100,000 school exemption. The gap says something. Texas's high rates and large exemptions come from a system with no state income tax. The math is just built differently.
Among the highest-tax states, New York's system is one of the most complicated. See NY property taxes for the contrast.
What are the most common mistakes that get applications rejected?
The ID address mismatch is the biggest one by far. Texas law requires your driver's license or state ID to show the property's address [10]. WCAD rejects applications when the addresses do not match. Moved recently? Update your DPS records first, then file.
Filing with the wrong office comes second. Plenty of new homeowners mail the application to the Williamson County Tax Assessor-Collector. That office collects taxes. It does not process exemptions. Everything goes to WCAD at 625 FM 1460, Georgetown.
Missing the deadline is third. April 30 is firm for the current year. People who buy in February sometimes assume they have until the fall, because that is when bills land. They do not. The exemption ties to January 1 ownership, and the filing deadline is April 30 of that same year.
Failing to update after a move is fourth. Sell your home or move out and rent it, and you have to tell WCAD. Keeping an exemption on a property you no longer occupy is treated as fraud under Texas law and can trigger back taxes, penalties, and interest for up to five years [3].
Last, some applicants forget to claim the senior or disabled add-ons separately. The general homestead exemption does not automatically pull in the over-65 or disability exemptions. Check the right boxes on Form 50-114 and attach documentation. For over-65, your birth certificate or driver's license showing your date of birth is enough. For disability, you need proof of Social Security disability status or its equivalent.
Can you lose your homestead exemption, and what do you do if that happens?
Yes. WCAD can pull an exemption when it finds you no longer qualify. Common triggers: a deed change showing a new owner, a mailing address that now differs from the property address, no response to a WCAD verification letter, or outside evidence (like another county's records) that you claimed a homestead somewhere else.
If your exemption is removed, WCAD sends written notice. You have the right to protest that removal to the Appraisal Review Board. The process mirrors a value protest: file the protest form, get a hearing, and show evidence that you still qualify.
When the removal was a mistake, a copy of your Texas ID showing the property address, a utility bill, and proof of primary residence (like voter registration) usually clears it at the informal hearing stage, no formal ARB hearing needed.
If you genuinely no longer qualify and forgot to tell WCAD, reach out before they catch it. Voluntary disclosure usually carries lighter consequences. The state can assess back taxes, a 50% penalty, and interest [3] for an improper exemption.
Where do you find your current exemptions and taxable value?
The fastest check is the WCAD property search at wcad.org [2]. Search by address or account number. The property details page shows your current appraised value, the exemptions on file, and the taxable value for each jurisdiction. It also lists the rate for each taxing unit, so you can estimate your bill before it arrives.
For your actual bill and payment status, use the Williamson County Tax Assessor-Collector's website at wilco.org [6]. Two separate websites, two separate jobs.
Want to confirm a specific school district rate? Each district (Round Rock ISD, Georgetown ISD, Liberty Hill ISD, Leander ISD, and the rest) publishes its adopted rate every year. The Texas Comptroller keeps a database of all local tax rates at comptroller.texas.gov [7].
For questions the websites do not cover, WCAD's phone number is (512) 930-3787. They are generally reachable by phone or in person Monday through Friday during business hours.
Frequently asked questions
What is the deadline to file for the Williamson County homestead exemption?
April 30 of the tax year you want the exemption for. Miss it and Texas law still allows a late application up to two years back, but WCAD charges a 10% penalty applied to the tax savings that would have resulted. Late filing is worth doing if you missed prior years, especially on a high-value home.
How much does the Williamson County homestead exemption save you?
It depends on your appraised value and combined rate, but the school district exemption alone ($100,000 off appraised value under HB 3, 2023) typically saves $1,400 to $2,000 a year for a mid-range Williamson County home. The county's 20% exemption adds more on top. A $450,000 home at a 1.8% blended rate saves roughly $1,800 from the school exemption alone.
Do I need to refile the homestead exemption every year?
No. Once WCAD approves your application, the exemption renews automatically each year as long as you keep occupying the property as your primary residence. You only refile if your situation changes, you sell the home, or WCAD sends a verification request you must answer.
Where do I file the Williamson County homestead exemption application?
File with the Williamson Central Appraisal District (WCAD), not the county tax office. File online at wcad.org, by mail to 625 FM 1460, Georgetown, TX 78626, or in person at that address. Use Form 50-114, the Texas Comptroller's Application for Residence Homestead Exemption.
What documents do I need to apply for the homestead exemption in Williamson County?
You need a Texas driver's license or state ID with the property's address printed on it, and that address must match the property exactly. If you own through a trust, bring the relevant trust pages. Manufactured homeowners need a TDHCA Statement of Ownership. For senior or disability add-ons, bring proof of age or Social Security disability documentation.
Does Williamson County freeze property taxes for seniors?
Yes, through the school district tax freeze (the senior tax ceiling). Once you are 65 with a homestead exemption in place, your school district taxes freeze at the dollar amount you paid that year. They can drop but cannot rise as long as you live in the home. The county also offers a $25,000 senior add-on exemption beyond the general homestead.
Can I get a homestead exemption on a newly purchased home in Williamson County?
Yes, as long as the property was your primary residence on January 1 of the tax year. There is no minimum ownership period. Close in late 2024 with the home as your primary residence on January 1, 2025, and you can file before April 30, 2025 for the 2025 tax year. The 10% annual appraisal cap also starts once your exemption is approved.
Does the Williamson County homestead exemption apply to rental properties?
No. The exemption applies only to a property you own and occupy as your primary residence. Rentals, vacation homes, and investment properties do not qualify. If you rent your home to someone else while you are away, even temporarily, it can become ineligible for the period it is rented.
What is the homestead exemption for disabled veterans in Williamson County?
Disabled veterans get exemptions tied to their VA disability rating, from $5,000 off appraised value at 10-29% disability up to a full exemption (zero property taxes on the residence) at 100% or unemployable status. These stack with the general homestead exemption. Surviving spouses of veterans who died in service or from service-connected causes may qualify for the full exemption under Texas Tax Code Section 11.131.
How do I check if my homestead exemption is already on file in Williamson County?
Go to wcad.org and search your property by address or account number. The property detail page shows all active exemptions as codes: HS means general homestead, OA means over-65, DV means disabled veteran. If no exemption codes appear, you have not filed or the application is still pending. You can also call WCAD at (512) 930-3787.
Can I still protest my appraised value after getting the homestead exemption?
Yes. The exemption and the appraisal protest are separate processes that both cut your tax bill. The exemption trims taxable value by a set amount; a successful protest trims the appraised value itself. Protesting on top of an exemption can save taxes on tens of thousands of additional dollars of value. The protest deadline is May 15 or 30 days after your Notice of Appraised Value, whichever is later.
What happens if I forget to tell Williamson County I moved and still have the exemption on my old home?
Keeping a homestead exemption on a property you no longer occupy as your primary residence is improper under Texas law. WCAD can assess back taxes for up to five years, plus a 50% penalty and interest. Notify WCAD promptly when you move. Voluntary disclosure generally brings lighter consequences than being caught through audit or cross-county data matching.
How does Williamson County's homestead exemption compare to Cobb County, Georgia?
They are built very differently. Williamson County's school district exemption is $100,000 off appraised value under Texas's 2023 HB 3. Cobb County, Georgia offers a basic $10,000 county homestead exemption, plus various school exemptions, but those dollar amounts are far smaller. Texas's higher rates and larger exemptions come from a system that funds government without a state income tax.
Is there a homestead exemption for homeowners under 65 who are disabled but not veterans?
Yes. Texas Tax Code Section 11.13(m) provides an extra $10,000 school district exemption for homeowners who qualify as disabled under the Social Security Administration's definition, regardless of age or veteran status. The same school district tax freeze available to seniors applies to disabled homeowners. Check the disability box on Form 50-114 and provide Social Security disability documentation.
Sources
- Texas Legislature, House Bill 3 (88th Legislature, 2023): HB 3 raised the general residence homestead exemption from school district taxes from $40,000 to $100,000, effective for the 2023 tax year.
- Williamson Central Appraisal District (WCAD), wcad.org: Williamson County offers a 20% general homestead exemption (minimum $5,000) on the county portion of property taxes, and a $25,000 additional exemption for homeowners 65 or older.
- Texas Tax Code, Chapter 11, Sections 11.13, 11.131, 11.43, Texas Comptroller of Public Accounts: Texas Tax Code Section 11.13 establishes eligibility, the January 1 occupancy requirement, the 10% annual cap on appraised value increases for homesteads, the senior tax freeze, and the veteran disability exemptions. Section 11.43 governs filing deadlines and late application rules including the 10% penalty.
- Texas Comptroller of Public Accounts, Property Tax Assistance Division: School district tax rates and local taxing unit rates for Williamson County jurisdictions including Round Rock ISD are published annually by the Texas Comptroller.
- Williamson County Tax Assessor-Collector, wilco.org: The Williamson County Tax Assessor-Collector collects property taxes and maintains taxpayer billing records; exemption applications are processed separately by WCAD.
- Texas Comptroller of Public Accounts, Property Tax rates and levies: The Texas Comptroller publishes annually adopted tax rates for all local taxing units in Texas, including all Williamson County school districts and jurisdictions.
- Texas Comptroller of Public Accounts, Property Tax Exemptions and Form 50-114: The Texas Comptroller's office summarizes all available property tax exemptions and publishes Form 50-114, the Application for Residence Homestead Exemption, covering the residence homestead, over-65, disability, and disabled veteran exemptions and their dollar amounts.
- Texas Department of Public Safety, Driver License Division: Texas driver's license address must match property address for homestead exemption application acceptance; homeowners can update their address through the DPS driver license division.