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Updated 2025 Tax Year

Waller County
Property Tax Guide

Everything you need to know about property taxes in Waller County, TX. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
Quick Facts
Tax Rate
$2.00-$3.50 per $100 assessed value (varies by city, school district, and special districts)
1st Due
Jan 31
Exemptions
5+ Available
Section 1

How Property Tax Works

Waller County, Texas operates on a property tax system that serves as the primary funding mechanism for essential local services including schools, county operations, municipal services, and special districts. Property owners in Waller County pay taxes based on the assessed value of their property multiplied by the applicable tax rate, which varies significantly depending on the specific location within the county due to different combinations of taxing entities.

The effective property tax rate in Waller County typically ranges from approximately $2.00 to $3.50 per $100 of assessed valuation, depending on which city, school district, and special districts serve your property. This rate includes contributions to multiple taxing entities: the county itself, school districts, municipal utility districts (MUDs), emergency services districts, and other special purpose districts. Property owners should note that moving even a short distance within the county can result in substantially different tax bills due to these varying district boundaries and their respective tax rates.

Section 2

What Makes Up Your Tax Bill

ComponentRate (per $100)Description
Waller County$0.496021County operations, law enforcement, courts, roads (FY 2024-2025)
School Districts$1.00-$1.40Varies by district (Waller ISD, Royal ISD, Katy ISD, etc.)
Cities$0.25-$0.75Municipal services where applicable (varies by city)
Emergency Services Districts$0.10-$0.15Fire and EMS services (varies by district)
Municipal Utility Districts$0.30-$1.00Water, sewer, drainage infrastructure (varies significantly)
Other Special Districts$0.05-$0.25Hospital districts, drainage districts, etc.

Total Combined Rate Range: $2.00-$3.50 per $100 of assessed value

Note: The Waller County rate decreased from $0.556187 in FY 2025-2026 to $0.496021 in FY 2024-2025. Your actual total rate depends on your property's specific location and which combination of taxing districts serve your area. Contact the Waller County Appraisal District for your exact rate breakdown.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Waller County, property taxes are due in two installments:

First Installment
Jan 31
Delinquent after Dec 10
Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental property taxes in Waller County are additional tax bills issued when there are changes to property ownership, improvements, or newly discovered property that wasn't included in the original annual assessment. The most common triggers include new construction completion, property ownership transfers that remove exemptions, additions or major improvements to existing structures, and corrections to previous assessment errors.

When a supplemental assessment is issued, the additional tax is calculated by applying the current year's tax rate to the difference between the old and new assessed values, prorated for the portion of the tax year remaining. For example, if you complete a $100,000 home addition in July and your total tax rate is $2.50 per $100, you would owe approximately $1,250 in supplemental taxes ($100,000 ÷ 100 × $2.50) prorated for the remaining 6 months of the tax year, resulting in a supplemental bill of about $625.

Example Calculation

Example 1: $300,000 Home with Homestead Exemption

  • Market Value: $300,000
  • School District Homestead Exemption: -$100,000 (school portion only)
  • County/Other Taxable Value: $300,000
  • School District Taxable Value: $200,000
  • Annual Tax: ~$6,500 | Monthly Escrow: ~$542

Example 2: $600,000 Home with Homestead and Over-65 Exemptions

  • Market Value: $600,000
  • School District Homestead Exemption: -$100,000 (school portion only)
  • Additional Over-65 Exemption: -$10,000 (varies by taxing entity, requires application)
  • County/Other Taxable Value: $590,000
  • School District Taxable Value: $500,000
  • Annual Tax: ~$14,000 | Monthly Escrow: ~$1,167

Example 3: $1,000,000 Home (No Exemptions)

  • Market Value: $1,000,000
  • No Exemptions Applied
  • Taxable Value: $1,000,000 (all entities)
  • Annual Tax: ~$27,500 | Monthly Escrow: ~$2,292

Note: All exemptions require application and approval. Homestead exemption also provides a 10% annual assessment increase cap but does not automatically reduce market value assessments.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Waller County require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects approximately 1/12 of your estimated annual property tax bill with each monthly mortgage payment, depositing these funds into a separate escrow account. The lender then pays your property taxes directly to the Waller County Tax Assessor-Collector when they become due on January 31st each year.

Lenders typically conduct annual escrow analyses to ensure adequate funds are collected, and may adjust your monthly payment if property taxes increase significantly due to rising assessments or tax rate changes. Property owners should verify that their lender has paid taxes on time, as you remain ultimately responsible for payment even when using escrow. You can check payment status through the Waller County Tax Assessor-Collector's website or by contacting their office directly. If you pay taxes directly without escrow, remember that the full annual amount is due by January 31st, with penalties and interest beginning February 1st.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are property taxes due in Waller County? A: Property taxes are due by January 31st each year for the current tax year. Penalties and interest begin accruing on February 1st for any unpaid amounts.

Q: What tax credits are available and do they require application? A: Most tax exemptions require application by April 30th of the tax year. The primary homestead exemption provides up to $100,000 exemption for school district taxes only and caps annual assessment increases at 10%. Additional exemptions include over-65, disabled veteran, and disability exemptions - all requiring separate applications through the Waller County Appraisal District.

Q: How does the homestead exemption work? A: The homestead exemption provides two benefits: (1) up to $100,000 reduction in taxable value for school district taxes only, and (2) a 10% cap on annual assessment increases. This does not reduce your property's market value but limits how much your assessment can increase each year. You must apply for this exemption - it is not automatic.

Q: When do I need to file for exemptions? A: Applications for most exemptions must be filed by April 30th of the tax year. Late applications may be accepted with a 10% penalty in some cases. File immediately after purchasing a home or becoming eligible for new exemptions.

Q: How often are properties reassessed? A: The Waller County Appraisal District reviews all properties annually, with notices of appraised value typically mailed in April or May. You have until May 31st (or 30 days from notice date) to file a protest if you disagree with the assessment.

Q: What are the penalties for late payment? A: Penalties begin at 6% in February, increase to 7% in March, 8% in April, 9% in May, 10% in June, and 12% in July and thereafter, plus 1% annual interest on the total amount due.

Q: Can I pay property taxes online? A: Yes, the Waller County Tax Assessor-Collector typically offers online payment options through their official website. Check for accepted payment methods and any associated convenience fees.

Q: Why do tax rates vary within Waller County? A: Your total tax rate depends on which combination of taxing entities serve your property, including school districts, municipal utility districts (MUDs), emergency services districts, and cities. Moving between different districts within the county can significantly change your tax rate.

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