Austin property tax calculator: how your bill is actually built

Last updated 2026-07-10

How is Austin property tax actually calculated?

Your Austin property tax bill is not one tax. It is a stack of taxes from several governments, each with its own rate, each applied to the same taxable value. Learn that structure and you can check whether your bill is right. Skip it and you are trusting five different bureaucracies to never make a mistake.

The formula is short: (Assessed Value - Exemptions) x Combined Tax Rate = Tax Owed. The work is figuring out which taxing entities hit your address and what each one charges.

A home inside Austin city limits in Travis County usually sees charges from Travis County, the City of Austin, Austin Independent School District (or whichever ISD covers your lot), Austin Community College District, the Travis County Healthcare District, and sometimes a Municipal Utility District (MUD) or Emergency Services District (ESD) piled on top. Homes in the Cedar Park or Round Rock parts of the metro that fall in Williamson County get a different set of taxing units entirely. See how Williamson County property tax works just a few miles north.

The Travis County Appraisal District (TCAD) sets your assessed value. The individual taxing entities set their own rates each fall. TCAD does not collect a dime; it only appraises. Each entity's Tax Assessor-Collector handles collection. That split matters the moment you need to fix an error or protest a value. ^[1]

What are the actual Austin and Travis County tax rates for 2023-2024?

Texas rates are quoted per $100 of taxable value. Below are the adopted rates for the entities covering most Austin addresses for the 2023 tax year, the bills that went out in fall 2023 and came due January 31, 2024. ^[2]

Taxing Entity	2023 Adopted Rate (per $100)
City of Austin	$0.4573
Travis County	$0.3442
Austin ISD	$0.8722
Austin Community College	$0.0952
Travis County Healthcare District	$0.0988
Typical Combined (no MUD)	~$1.87

Source: Travis County Tax Office, 2023 adopted rates ^[2]

A MUD can add $0.50 to $1.50 per $100 on top of all that. That single line is why two homes a mile apart can carry wildly different bills. If your subdivision was built after 2000, pull up the TCAD property search and read every taxing unit assigned to your account. ^[1]

Chicago runs a similar layered game, where Cook County, the city, the school district, and the library district all stack rates, covered in detail on property tax taxation. Same math, very different numbers.

Texas school rates fell hard after House Bill 3 in 2019 and again after HB 2 in 2023. HB 2 compressed school Maintenance and Operations (M&O) rates by another $0.107 per $100. That is why plenty of Austin homeowners watched their 2023 bill drop even as their appraised value climbed. ^[3]

How do I calculate my Austin property tax bill step by step?

Here is the real process, not the simplified one.

Step 1: Get your appraised value. Look up your account at traviscad.org. You want the 'Appraised Value' line, which for a home under the homestead cap can sit below the 'Market Value' line. For most homes the two match. When they do not, use the appraised value. ^[1]

Step 2: Subtract your exemptions. The workhorse is the general homestead exemption. Under Texas Tax Code Section 11.13, school districts must offer a $100,000 residence homestead exemption from school taxes starting with the 2023 tax year, up from $40,000 under HB 2. Travis County adds a 20% exemption off the county portion. The City of Austin gives $5,000 flat plus 20% of value off its portion. ^[4]

Step 3: Apply each entity's rate to its own taxable value. Exemption amounts differ by entity, so your taxable value for school taxes will not match your taxable value for city taxes.

Step 4: Add every entity's tax together. That sum is your gross bill before any early payment discount.

A worked example. Say your TCAD appraised value is $500,000 and you have a homestead exemption.

• School taxable value: $500,000 - $100,000 = $400,000. At $0.8722 per $100: $3,489.
• City of Austin taxable value (20% + $5,000): $500,000 - $105,000 = $395,000. At $0.4573 per $100: $1,806.
• Travis County (20% exemption): $500,000 - $100,000 = $400,000. At $0.3442 per $100: $1,377.
• ACC (follows county taxable value): about $381.
• Healthcare District: about $395.
• Rough total: about $7,448.

Your real bill can swing a few hundred dollars depending on your exact exemptions and whether a MUD or ESD applies. Check it against your official notice every year.

What exemptions can Austin homeowners claim to lower taxable value?

Texas has one of the more generous exemption menus in the country. The catch is you have to apply. Nothing is automatic, except the over-65 and disability school exemptions that switch on if you already have a homestead exemption on file and turn 65 during the year.

General Homestead Exemption. The property has to be your primary residence as of January 1 of the tax year. File once and it stays until you move. The application goes to TCAD and covers every taxing unit. ^[4]

Over-65 (Senior) Exemption. An extra $10,000 off school taxes under Texas Tax Code Section 11.13(c), plus a school tax freeze. Your school taxes cannot climb above what they were the year you turned 65 or first applied, whichever came later. Travis County and the City of Austin tack on their own senior exemptions too. Apply the day you turn 65.

Disability Exemption. Open to homeowners drawing federal disability benefits. Same $10,000 school exemption. You cannot stack the over-65 and disability school exemptions, but you take whichever is bigger.

100% Disabled Veterans. Texas Tax Code Section 11.131 exempts the entire appraised value for veterans the VA rates 100% disabled. Full wipe, not a reduction. ^[4]

Agricultural Use (Ag Exemption). Technically a productivity valuation, not an exemption. It applies to land that meets the acreage and agricultural activity rules under Texas Tax Code Chapter 23, and plenty of outer-Austin parcels qualify. The savings can be huge. Lose the ag designation and a five-year rollback penalty comes due.

Most exemption applications are due April 30 of the tax year. You can file the homestead exemption late, up to two years past the deadline, for a $25 fee. File on time anyway. ^[4]

What is the Travis County homestead exemption cap and how does it protect you?

Texas Tax Code Section 23.23 caps how fast a homesteaded property's appraised value can rise. The limit is 10% above last year's appraised value, not last year's market value. People call it the 'homestead cap' or the '10% cap.'

The protection is real money. If your home's market value shot up 30% in a year, TCAD can still only raise your appraised value 10% as long as your homestead exemption is in place. Stack a few years of fast appreciation and your capped value can sit far below what the home would actually sell for. ^[4]

Here is the catch. The cap resets when the property sells. The new owner loses every dollar of the prior owner's built-up cap discount and gets assessed near full market value the next year. That is why Austin buyers get gut-punched by their first-year tax bill.

The cap no longer shields school taxes the way it once did. The $100,000 school exemption from HB 2 does that job directly now, cap or no cap. But the 10% limit still matters for the city, county, and other portions. ^[3]

Bought recently and your TCAD value already equals or beats your purchase price? You may have grounds to protest on market value. A recent sale is strong evidence, and the appraiser is supposed to weigh it.

How do Austin property taxes compare to other Texas counties and major U.S. cities?

Texas has no state income tax, so property taxes carry most of local government and the public schools. The bill for that trade is one of the highest effective property tax rates in the country.

The Tax Foundation reported that Texas had the sixth-highest average effective property tax rate on owner-occupied housing among all states in 2022, at roughly 1.60% of market value. ^[5] On a $500,000 Austin home that is about $8,000 a year before exemptions. The $100,000 school homestead exemption pulls the real burden down, but Texas still ranks near the top.

Inside Texas, Travis County's combined rates usually run higher than the Dallas suburbs and roughly even with inner-city Houston. Collin County property tax rates in the Dallas metro tend to sit lower than Travis County's, partly because Collin County has a wider commercial base helping carry residential rates.

Los Angeles is a different animal. LA County property tax is held to 1% base plus voter-approved add-ons under Proposition 13, so effective rates often land at 1.1% to 1.3%. A comparable $500,000 LA home might owe $5,500 to $6,500. Austin owners pay more in raw dollars, but they pay zero state income tax.

The Midwest tells another story. Hennepin County property tax around Minneapolis and Detroit property taxes both layer municipal rates, and Detroit's paper rates rank among the highest anywhere, though exemptions muddy the real picture.

Raw rate comparisons without exemptions lie to you. Your effective rate on market value is the only honest yardstick.

When are Austin property tax bills mailed and when are payments due?

Texas runs a single statewide property tax calendar, set by the Texas Tax Code. Miss a date and the penalties are automatic.

Event	Typical Date
TCAD sends appraisal notices	April to May
Protest deadline (general)	May 15, or 30 days after notice, whichever is later
Taxing entities adopt rates	September to October
Tax bills mailed	October 1 (earliest)
Full payment due without penalty	January 31
7% penalty kicks in	February 1
Additional 2% penalty	July 1 (plus attorney collection fees)
Early payment discount deadline	December 31 (2% if paid by Dec 31, varies by entity)

Source: Texas Tax Code Sections 31.01, 31.02, 33.01 ^[6]

If your mortgage escrows the taxes, your lender pays by January 31. Errors still happen. Confirm with the Travis County Tax Office that the payment posted, especially the year you buy or sell. ^[2]

Homeowners who are 65 or older or disabled have an automatic right to split the bill into four equal installments with no penalty, under Texas Tax Code Section 31.031. The four due dates are February 1, April 1, June 1, and August 1. ^[6]

You can pay online through the Travis County Tax Office site. Credit card payments carry a convenience fee near 2.15%. Electronic checks are free or close to it. ^[2]

How do I protest my Austin property tax assessment if my value is too high?

Texas makes protesting easier than most states. You do not need a lawyer or a contingency firm to file or to win.

Step 1: File by the deadline. That is May 15, or 30 days after the date on your appraisal notice, whichever is later. File online at traviscad.org, by mail, or in person. The form asks for your grounds. Most homeowners check 'value is over market value' and often 'value is unequal compared to similar properties' too. ^[7]

Step 2: Request your evidence package. Once you file, TCAD has to send the evidence it plans to use at your hearing. Read it hard. Their comps are often wrong: bad square footage, wrong year built, homes lifted from a different neighborhood.

Step 3: Build your own evidence. Pull three to five comparable sales from Zillow, Redfin, or the MLS that closed within six months of January 1, the appraisal date. Match size, age, condition, and neighborhood as closely as you can. If your comps support a lower value, bring a clean spreadsheet. If you paid for an independent appraisal, bring that too.

Step 4: Work the informal hearing first. Before the Appraisal Review Board (ARB), TCAD appraisers offer an informal negotiation. A lot of protests die right here. Be direct. Show your comps, name the value you want, ask what they can do.

Step 5: Go to the ARB if the informal stalls. The ARB is a separate, independent panel. Hearings usually run 15 to 30 minutes. The Texas Comptroller publishes a free Property Taxpayer Remedies guide that spells out your rights. ^[7]

Homeowners who show up with solid comparable sales win real reductions more often than not. Nobody has clean statewide data on win rates by evidence type. The closest read is TCAD's own annual reports, which show a large share of residential protests ending in a value cut. ^[10]

Want a structured way to build the evidence package and prep for the hearing? The TaxFightBack DIY Appeal Kit walks Texas filers through it step by step, so you keep 100% of any reduction instead of handing a contingency firm 30% to 40% of your first-year savings.

After the appeal, the rules about ARB decisions, district court appeals, and binding arbitration live in the after-the-appeal resources at TaxFightBack.

What is unequal appraisal and can I use it to lower my Austin taxes?

Unequal appraisal means your home is taxed at a higher percentage of market value than comparable properties, even if your own value looks defensible in isolation. Texas is one of the few states that lets homeowners protest on exactly this ground. The right is written into Texas Tax Code Section 41.43. ^[4]

So you can win a cut even when the appraiser priced your home correctly, if TCAD valued similar homes at 90 cents on the dollar and pinned yours at full dollar. The district is supposed to apply values uniformly. When it does not, unequal appraisal is your lever.

The Texas Comptroller runs an annual ratio study to check whether appraisal districts hold the 95% to 105% median level of appraisal the law requires. ^[8] If Travis County's residential ratio slips under 95%, that is systemic evidence of unequal appraisal you can bolt onto your individual protest.

Building the argument takes work: pull TCAD's data on comparable properties, run their assessed-to-market ratios, and show yours sits higher. It is heavier lifting than a straight comparable sales argument. For high-value homes and commercial parcels, the payoff justifies it. Contingency firms lean on unequal appraisal as their main play. A prepared DIY filer can run the same play.

Can I use an online calculator to estimate my Austin property tax, and how accurate are they?

You can, but the accuracy varies a lot. The Travis County Tax Office site has a tax estimator, Zillow and Redfin show estimated tax figures, and TCAD's own property search lists current and prior-year tax for any parcel. ^[2]

The Travis County Tax Office estimator is the one to trust for a current-year bill. It uses actual adopted rates and takes your specific address. Run it after rates are adopted in October for the tightest estimate.

Zillow and Redfin estimates are the weakest. They lean on prior-year data and usually ignore your specific exemptions. Treat them as ballpark, nothing more.

The surest move is doing the math yourself with the steps above. It takes about ten minutes once you have your TCAD account and the current adopted rates. TCAD's property detail page already shows your taxable value for each entity after exemptions, which kills the most error-prone step.

Outside Travis County but still in the metro? Homes in Williamson, Hays, or Bastrop counties need those counties' appraisal district sites. Their taxing entities, rates, and exemption rules are different. Williamson County property tax differs enough that a Travis County calculator hands you garbage numbers if your home sits in Pflugerville's Williamson County portion or in Cedar Park.

What about commercial and rental property taxes in Austin?

Commercial property in Travis County runs on the same formula: assessed value times combined rate. Two things change the game.

First, commercial property gets no homestead exemption, no 10% annual cap, and none of the residential-specific breaks. The appraiser values it at market every year with no cap slowing the climb. In a rising market that means commercial values can jump far harder than a homeowner's ever could.

Second, the income approach applies to income-producing property. TCAD appraisers can value an apartment complex or office building off its net operating income and a capitalization rate rather than comparable sales. Think their income assumptions are wrong, with rents too high, vacancy too low, or the cap rate off? That is your protest argument.

Unequal appraisal works for commercial too, and often lands harder given the bigger numbers. A 5% cut on a $5 million property saves about $4,250 a year at Travis County's combined commercial rate.

For how other big metros handle commercial assessment, NYC property tax uses a four-class structure that looks nothing like Texas, and Santa Clara property tax in California still shields long-held commercial parcels under Prop 13. Austin commercial owners get no such cover and face reassessment near market every single year.

What happens if I do not pay my Austin property tax on time?

Missing January 31 gets expensive fast. Texas Tax Code Section 33.01 sets a 7% penalty on unpaid taxes starting February 1, plus interest at 1% a month. By July 1 another 2% penalty lands, and if the county hands the account to a collection attorney (most Texas counties do), you owe the attorney's fee on top, commonly 15% to 20% of the balance. ^[6]

Stack it all and delinquent taxes can carry a penalty and interest load reaching 45% to 50% within 18 months. That is not a scare number. That is the statutory math.

The county can file a tax lien and, given enough time, move to foreclose. Texas law requires at least two years of delinquency before a foreclosure suit can be filed against a homesteaded residence, but the hole deepens every month you wait.

Cannot pay? Call the Travis County Tax Office before February 1. They do not advertise it, but Texas Tax Code Section 33.02 allows a delinquent tax installment agreement in certain cases. The county has discretion to take payments over time and waive some penalties once you sign an agreement. ^[6]

Homeowners who are 65 or older or disabled can defer property taxes entirely under Texas Tax Code Section 33.06. Taxes still accrue at 5% annual interest but no penalty, and the deferral can stop a forced sale. The deferred amount comes due when the home sells. ^[6]

Frequently asked questions

What is the current combined property tax rate in Austin, Texas?

For most homes inside Austin city limits in Travis County, the 2023 combined rate was about $1.87 per $100 of taxable value, before any MUD or ESD charge. That stacks the City of Austin ($0.4573), Travis County ($0.3442), Austin ISD ($0.8722), Austin Community College ($0.0952), and the Travis County Healthcare District ($0.0988). Homes in newer subdivisions with a MUD can hit $2.30 to $2.70.

How do I find my Austin property's assessed value?

Search by address, owner name, or account number at traviscad.org. Your TCAD property detail page shows the current appraised value, every exemption applied, the taxable value for each entity, and a five-year value history. This is the authoritative source. Zillow and Redfin often lag a full tax year behind.

What is the deadline to protest my Travis County property tax assessment?

May 15 of the tax year, or 30 days after the date on your appraisal notice, whichever is later. File online at traviscad.org, by mail, or in person. Miss it and you generally cannot protest until next year, with narrow exceptions for clerical errors or notices you never received.

How much can my Austin home's appraised value increase each year?

With a homestead exemption in place, Travis County Appraisal District can raise your appraised value no more than 10% per year above last year's appraised value, no matter how far the market moved. The cap comes from Texas Tax Code Section 23.23. It resets for the new owner whenever the property sells.

What is the homestead exemption in Austin and how do I apply?

It cuts your taxable value for school taxes by $100,000 (as of 2023), for Travis County by 20%, and for the City of Austin by 20% plus $5,000 flat, among other entity-specific reductions. File the application at traviscad.org. The deadline is April 30, though late filings are accepted up to two years past the deadline for a $25 fee.

Do Austin seniors get a property tax freeze?

Yes. Homeowners 65 or older with a homestead exemption get a school district tax freeze: the school tax you owed the year you turned 65 (or first applied) becomes the ceiling, even if your value or the school rate rises later. Travis County and the City of Austin add their own senior exemptions on their portions. Apply through TCAD.

How do Austin property taxes compare to Dallas or Houston?

Travis County's combined rates are broadly even with inner-city Harris County (Houston), both often between $1.75 and $2.20 per $100 for most homeowners. Dallas-area suburban counties like Collin County tend to run slightly lower on the combined rate thanks to a wider commercial tax base. All three rank high nationally because Texas has no income tax.

Can I pay my Austin property taxes online?

Yes. The Travis County Tax Office accepts payment at tax.traviscountytx.gov. Electronic checks are cheapest, usually under $2. Credit card payments carry a convenience fee near 2.15%. Payment plans and mortgage escrow both post online. Confirm the payment lands before the January 31 deadline.

What is unequal appraisal and can Austin homeowners use it?

Unequal appraisal means your property is assessed at a higher percentage of market value than comparable properties in TCAD's own records, even if your individual value is arguably accurate. Texas Tax Code Section 41.43 lets you protest on this basis. You build it by pulling TCAD data on similar homes, comparing their assessed-to-market ratios to yours, and showing yours sits proportionally higher.

What happens to my Austin property taxes when I sell my home?

The homestead exemption and the 10% annual cap both reset for the buyer. The new owner gets assessed at or near market value starting the following January 1, with none of the prior owner's built-up cap discount. Sell mid-year and taxes are typically prorated at closing based on the current year's expected bill, negotiated in the contract.

Is there a property tax exemption for veterans in Austin?

Yes. Texas Tax Code Section 11.131 grants a 100% property tax exemption to veterans the U.S. Department of Veterans Affairs rates 100% disabled. Partial ratings (10%, 30%, 50%, 70%, 90%) receive scaled exemptions from $5,000 to $12,000 off the assessed value. Surviving spouses of qualifying veterans may also qualify. Apply through TCAD with your VA disability letter.

How does the Austin property tax system differ from Chicago's?

Both stack rates from multiple taxing entities, but the mechanics split hard. Chicago property taxes under the Cook County system use property classes with different assessment ratios plus a state equalization multiplier. Texas taxes all property at 100% of market value before exemptions. Austin homeowners protest before the Appraisal Review Board; Chicago owners go through the Cook County Board of Review.

What are MUD taxes and why does my Austin-area bill include them?

Municipal Utility Districts (MUDs) are special purpose districts that fund infrastructure, mainly water, sewer, and drainage, in newer developments on the urban fringe. If your subdivision went up in the last 20 to 30 years on formerly rural land, you probably sit in a MUD. MUD rates commonly run $0.50 to $1.50 per $100, adding $2,500 to $7,500 a year on a $500,000 home.

What if I missed the protest deadline? Can I still appeal my Austin assessment?

In most cases, missing May 15 means waiting until next year. Texas Tax Code allows a late protest only in narrow spots: a clerical error by TCAD, a notice you never got (if your address was wrong in TCAD's records), or a property left off the appraisal roll. A motion to correct a clerical error has no statutory deadline and can be filed any time. Otherwise, document the problem now and protest next year with a full year of evidence.

Sources

1. Travis County Appraisal District, Property Search and Account Information: TCAD sets appraised values for all Travis County properties; individual taxing entities set rates separately
2. Texas Legislature, House Bill 2 (88th Legislature, 2023), Property Tax Relief: HB 2 raised the school district homestead exemption from $40,000 to $100,000 and compressed M&O rates by $0.107 per $100
3. Texas Tax Code, Sections 11.13, 11.131, 23.23, 41.43 (Texas Constitution and Statutes): Homestead exemption amounts, 100% disabled veteran exemption, 10% annual cap, and unequal appraisal protest rights
4. Tax Foundation, Property Taxes by State, 2022: Texas had approximately the sixth-highest average effective property tax rate on owner-occupied housing among all states in 2022 at roughly 1.60%
5. Texas Tax Code, Sections 31.01, 31.02, 31.031, 33.01, 33.02, 33.06: Property tax due dates, penalty schedule starting February 1 at 7%, installment rights for seniors and disabled, delinquency deferral, and installment agreements
6. Texas Comptroller of Public Accounts, Property Taxpayer Remedies Guide: Protest filing procedures, ARB hearing rights, and property owner evidence requirements under Texas law
7. Texas Comptroller of Public Accounts, Annual Property Value Study: Texas requires appraisal districts to maintain a median level of appraisal between 95% and 105% of market value; Comptroller ratio studies verify compliance
8. Texas Legislature, House Bill 3 (86th Legislature, 2019), School Finance and Property Tax Reform: HB 3 (2019) began compressing school district M&O property tax rates, continued by HB 2 in 2023
9. Travis County Appraisal District, 2023 Annual Report: Data on Travis County appraisal roll totals, protest volumes, and resolution outcomes for the 2023 tax year