Katy TX Property Taxes Explained 2025 — Rates, MUDs & Exemptions | Isaias Contreras | Contreras Property Group
Property Tax Guide · Katy, Texas

Katy, TX Property Taxes —
Rates, MUDs & Exemptions Explained

Everything homeowners and buyers need to know about property taxes in Katy, TX — rates, MUD districts, exemptions, and how to reduce your bill.

Property taxes in Katy TX range from 2.0% to 2.8% of assessed value annually, depending on county (Harris, Fort Bend, or Waller) and whether a Municipal Utility District (MUD) applies. On a $400,000 home: $8,000–$11,200 per year. The Texas homestead exemption can save $1,500–$2,500/year — but you must proactively file by April 30.

TL;DR — Key Takeaways

  • Property tax rates in Katy TX range 2.0%–2.8% depending on county and MUD district.
  • MUD districts add 0.3%–0.7% to the effective rate — verify if a property is in a MUD before buying.
  • The Texas homestead exemption reduces taxable value by $100,000 for school taxes — file by April 30.
  • Homeowners 65+ get additional exemptions and a school tax freeze — significant long-term benefit.
  • Texas has no state income tax, substantially offsetting higher property taxes versus other states.
  • You can protest your appraisal annually — many Katy homeowners do this successfully.
Quick Answers

Common Questions About Katy, TX

What Are Property Taxes in Katy TX?

2.0%–2.8% of assessed value per year depending on county and MUD district. On a $400,000 home: $8,000–$11,200 annually. These taxes fund Katy ISD, county services, and special districts.

What Is a MUD in Katy TX?

A Municipal Utility District finances water, sewer, and drainage infrastructure. Common in Katy master-planned communities, MUDs add 0.3–0.7% to your effective rate. Always verify whether a property is in a MUD before buying.

How Do I Lower My Property Taxes?

File for the Texas homestead exemption (reduces taxable value by $100,000 for school taxes). Seniors 65+ get additional exemptions and a school tax freeze. Protest your appraisal if it exceeds market value.

Are Katy TX Property Taxes High?

Rates of 2.0–2.8% are above national average, but Texas has no state income tax. Most households from California or New York save $4,000–$8,000+ annually in income taxes — more than offsetting higher property taxes.

When Is the Homestead Exemption Deadline?

File with your county appraisal district by April 30 of the year after purchase and first occupancy as primary residence. Not automatic — you must proactively apply.

2.0–2.8%Typical Tax Rate
$100KHomestead Exemption
0%TX State Income Tax
April 30Homestead Deadline
YesMUD Districts Common

How Texas Property Taxes Work

Texas funds local government — schools, counties, cities, and special districts — through property taxes. No state income tax. Tax is calculated by multiplying taxable value by the combined rate of all applicable jurisdictions. In Katy TX, this typically includes the county, Katy ISD, and in many cases a Municipal Utility District (MUD).

Katy TX Tax Rates by County

County Combined Rate MUD Addition Notes
Harris County 2.2%–2.5% +0.3%–0.7% Most established Katy
Fort Bend County 2.0%–2.4% +0.3%–0.6% Cinco Ranch, CrossCreek area
Waller County 1.9%–2.3% +0.4%–0.7% Western developments

MUD Districts Explained

Municipal Utility Districts (MUDs) finance water, sewer, and drainage infrastructure. Extremely common in Katy master-planned communities — they add 0.3–0.7% to your effective rate. A home with a 2.5% base rate in a MUD could have an effective rate of 2.8–3.0%. Always verify the exact MUD rate for any specific address before making an offer.

How to Protest Your Appraisal

Every Texas property owner has the right to protest their appraised value with the county appraisal district by May 15 (or 30 days from your Notice). Comparable sales data is your primary evidence. Many Katy homeowners successfully reduce their appraisals each year.

FAQ

Frequently Asked Questions

What are property taxes in Katy TX?
2.0%–2.8% of assessed value. On a $400K home: $8,000–$11,200/year.
How do I calculate my taxes?
Multiply appraised value by combined rate. Example: $400,000 × 2.5% = $10,000/year.
What is a MUD in Katy TX?
Special taxing district for water/sewer/drainage. Adds 0.3–0.7% to effective rate.
How do I lower my taxes?
File homestead exemption (saves $1,500–$2,500/year). Seniors 65+ get additional exemptions. Protest appraisal if above market.
When are Texas property taxes due?
January 31 of the following year. Late payments accrue penalties from February.
What is the homestead exemption?
Reduces taxable value by $100,000 for school taxes. File by April 30 after purchase. Not automatic.
Can I protest my appraisal in Katy TX?
Yes — file by May 15. Bring comparable sales data. Many homeowners successfully reduce their values.
Are Katy taxes high versus other states?
Rates are above national average, but no state income tax. Most households from CA or NY save more in income taxes than they pay in added property taxes.
Harris or Fort Bend — which has lower taxes in Katy?
Fort Bend typically runs 0.1–0.3% lower. MUD rates vary. Verify the specific address rate.
What if I don't pay Texas property taxes?
Penalties and interest from February. Extended non-payment leads to tax lien and potentially foreclosure.

Written & Reviewed By

Isaias Contreras

REALTOR®  ·  Contreras Property Group  ·  Richmond, TX

Isaias Contreras is a licensed Texas REALTOR® and founder of Contreras Property Group, serving buyers and sellers across Katy, Richmond, Houston, Fulshear, Sugar Land, Cypress, and the greater Houston metro. With deep knowledge of master-planned communities, new construction, and the Fort Bend and Harris County markets, Isaias provides expert guidance through every step of the real estate process.

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