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Updated 2025 Tax Year

Montgomery County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
Approximately $1.96 per $100 assessed value (varies $1.80-$2.20 by district combination including school, MUD, ESD)
1st Due
Jan 31
Exemptions
5+ Available
Section 1

How Property Tax Works

Montgomery County, Texas operates on a property tax system that funds essential local services including schools, county operations, municipal services, and various special districts. Property taxes are the primary revenue source for these local government functions, with tax bills typically reflecting contributions to multiple taxing entities within your specific location.

The effective property tax rate in Montgomery County varies significantly by location due to the overlay of different taxing districts. As of the most recent data, the overall effective rate is approximately $1.96 per $100 of assessed value, though this can range from roughly $1.80 to $2.20 depending on your specific combination of school district, municipal utility districts (MUDs), emergency services districts, and other special purpose districts. Property assessments in Texas are based on market value as of January 1st each year, with the Montgomery County Appraisal District (MCAD) responsible for determining these values.

Tax bills are issued annually with a single payment due date of January 31st for the prior year's taxes. Property owners should verify their specific tax rate and applicable credits, as rates and available programs can vary significantly even within the same neighborhood based on the special taxing districts that serve each property.

Section 2

What Makes Up Your Tax Bill

The following represents the typical tax rate components for Montgomery County properties for the 2025 tax year (taxes due January 31, 2026):

ComponentApproximate Rate (per $100)Description
School District$1.15 - $1.30Local independent school district operations and debt service
Montgomery County$0.42 - $0.45County services, roads, sheriff, courts
City/Municipality$0.15 - $0.25City services (where applicable)
Emergency Services District$0.08 - $0.12Fire and EMS services
Municipal Utility District$0.05 - $0.35Water, sewer, drainage infrastructure
Hospital District$0.03 - $0.05Public health services
Total Effective Rate$1.80 - $2.20Combined rate varies by location

Note: Actual rates vary significantly based on your property's specific location and the combination of special taxing districts that serve your area. The Montgomery County Tax Office provides detailed rate information for each tax code area within the county. These rates apply to the 2025 levy year with taxes due January 31, 2026.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Montgomery 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 Montgomery County are additional tax assessments that occur when there are changes to property ownership, value, or improvements outside the regular annual assessment cycle. These typically arise from new construction, major renovations, or corrections to the tax roll that increase a property's assessed value mid-year.

When a supplemental assessment is issued, it covers the period from the effective date of the change through the end of the current tax year. For example, if you complete a home addition in June that increases your property's assessed value by $50,000, you would receive a supplemental tax bill for approximately 7 months of additional taxes on that $50,000 increase. The calculation uses the same tax rate as your regular annual bill but prorated for the remaining months in the tax year.

Supplemental tax bills are issued separately from your regular annual property tax bill and have their own due dates, typically 30 days from the issue date. These taxes are in addition to your regular property tax payment and cannot be paid through your mortgage escrow account, requiring direct payment to the Montgomery County Tax Office.

Example Calculation

The following examples show estimated annual property tax calculations for Montgomery County properties using an effective rate of $2.00 per $100 of assessed value:

Example 1: $300,000 Home

  • Market Value: $300,000
  • Less: Homestead Exemption: -$100,000 (school district portion, requires application)
  • Net Taxable Value: $275,000
  • Annual Tax: $275,000 × 0.02 = $5,500
  • Monthly Escrow: ~$458

Example 2: $600,000 Home

  • Market Value: $600,000
  • Less: Homestead Exemption: -$100,000 (school district portion, requires application)
  • Net Taxable Value: $575,000
  • Annual Tax: $575,000 × 0.02 = $11,500
  • Monthly Escrow: ~$958

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Less: Homestead Exemption: -$100,000 (school district portion, requires application)
  • Net Taxable Value: $975,000
  • Annual Tax: $975,000 × 0.02 = $19,500
  • Monthly Escrow: ~$1,625

Important Notes: The homestead exemption shown is the $100,000 school district exemption available for primary residences and requires annual application. Additional exemptions may be available for seniors, disabled veterans, or disabled persons, all requiring separate applications. Actual tax rates vary by specific location within Montgomery County.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Montgomery County require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects approximately 1/12th of your estimated annual property tax bill with each monthly mortgage payment, holding these funds in an escrow account to pay your tax bill when due on January 31st.

Lenders typically conduct an annual escrow analysis to adjust your monthly payment based on actual tax bills and any changes in assessed value or tax rates. If your taxes increase significantly, you may receive an escrow shortage notice requiring additional monthly payments or a lump sum to cover the shortfall. Conversely, if taxes decrease or the lender has collected more than needed, you may receive a refund or see reduced monthly payments.

Property owners should review their annual tax statements and escrow analysis carefully to ensure accuracy. The Montgomery County Tax Office provides online access to current and historical tax information, which you can use to verify your lender's calculations. If you pay taxes directly (without escrow), you're responsible for ensuring payment reaches the tax office by January 31st to avoid penalties and interest charges.

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 Montgomery County property taxes due for the 2025 tax year? A: Property taxes for the 2025 tax year are due January 31, 2026. This is a firm deadline - payments received after this date will incur penalties and interest.

Q: What homestead tax credits are available and do I need to apply? A: The primary benefit is the $100,000 homestead exemption for school district taxes on your primary residence. This requires application with MCAD and is not automatic. Additional credits are available for seniors (65+), disabled veterans, and disabled persons, all requiring separate applications with specific deadlines.

Q: How does the homestead exemption work - does it reduce my home's value? A: The homestead exemption reduces your taxable value for tax calculation purposes, not your market value. Additionally, homestead properties benefit from a 10% annual cap on assessment increases, which limits how much your taxable value can increase each year regardless of market value changes.

Q: What is the deadline to apply for exemptions and how do I apply? A: Most exemption applications must be filed with MCAD by April 30th of the tax year. Applications are available online at the Montgomery County Appraisal District website or at their office locations throughout the county.

Q: How often are properties reassessed in Montgomery County? A: MCAD reviews all properties annually as of January 1st. However, homestead properties are protected by a 10% annual increase cap on assessed value, even if market value increases more than 10%.

Q: What happens if I pay my property taxes late? A: Penalties begin February 1st at 6% of the tax amount, increasing to 7% in March, 8% in April, and 9% in May and thereafter. Interest also accrues at 1% per month. Attorney fees may be added for delinquent accounts.

Q: Can I pay my property taxes online? A: Yes, Montgomery County offers online payment options through their official website. Credit card, debit card, and electronic check payments are typically accepted, though convenience fees may apply.

Q: Why do property tax rates vary within Montgomery County? A: Tax rates vary based on the specific combination of taxing entities that serve your property, including school districts, municipal utility districts (MUDs), emergency services districts, and other special purpose districts. Each entity sets its own tax rate.

Q: How do I appeal my property assessment if I believe it's too high? A: Property owners can file a protest with the Montgomery County Appraisal Review Board, typically by May 15th or within 30 days of receiving your notice of appraised value. The process includes informal and formal hearing options.

Q: Are there any tax credits available for solar panels or energy improvements? A: Texas law provides for certain exemptions on renewable energy improvements, but these require application and have specific qualifying criteria. Contact MCAD for current programs and application requirements.

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