Free Texas MUD Tax Calculator for Fast Estimates

A MUD (Municipal Utility District) tax is a special property tax levied on private and commercial property owners within the district’s boundaries.

The district uses the property-tax revenue to repay the bonds it issued to finance essential public infrastructure and services, including water, sewer, and drainage systems.

Use our free estimator below to get an idea of the MUD tax for homes in your district. I’ll also explain how MUD taxes work and provide examples of MUD tax estimates.

Simple MUD Tax Calculator for Texas Homebuyers

MUD taxes vary depending on the Municipal Utility District where your home is located.

Follow these steps to estimate your MUD taxes using our calculator:

• Find the property’s MUD. Search the property address on the county appraisal district or county property-tax website. Or use the TCEQ Water Districts Map Viewer to find the district.
• Determine the MUD taxable value. Check the property’s latest tax record or statement for the exact taxable value shown for that district (not the home’s purchase price or market value).
• Look for the MUD tax rate, which is the MUD’s total adopted tax rate on the tax statement (stated per $100 of taxable value) or your county’s Truth in Taxation website. Use the Texas Property Tax Directory to find the right website.

General Estimate Only: Our MUD tax calculator provides estimates that cover the MUD property tax only. The results do not include school, county, city, hospital district, and other charges.

How MUD Taxes Work in Texas

A MUD is a political subdivision usually created in areas where city utilities may not be available, such as:

• Newer developments
• Master-planned communities
• Certain areas outside city limits, including extraterritorial jurisdictions (ETJs)

The Texas Commission on Environmental Quality (TCEQ) authorizes and regulates MUDs.

Under Texas law, MUDs serve as taxing entities that collect funds from residents to finance the construction, operation, and maintenance of essential facilities within the district’s boundaries.

While MUDs are common in Texas, other U.S. states have similar special government entities that charge property taxes under varying names and rules.

Here’s how MUD taxes work:

• A developer builds the community’s initial infrastructure and utility systems, including water, wastewater, sewage, drainage, roads, and recreational facilities.
• The MUD issues bonds and uses the proceeds to reimburse the developer for approved infrastructure costs.
• Homeowners repay the bonds and continue supporting ongoing maintenance, operations, and improvements through the MUD tax.

A board of directors governs the MUD, sets tax rates, manages infrastructure, and oversees operations.

Over time, the MUD tax may decrease as the bonds get repaid and more homeowners join the tax base. This means more established districts with lower debt loads and more residents likely have lower MUD taxes than newer districts.

Remember: While MUD taxes increase your total property tax bill, they help ensure that the community has dependable infrastructure and homeowners have access to proper water, sewage, and drainage systems.

Examples of MUD Taxes

Based on 2025 adopted rates, here are MUD tax estimates from three municipal utility districts in Texas. I’ve calculated the MUD tax based on a home with a $350,000 taxable value using the following formula:

MUD taxable value % 100 x MUD tax rate

Harris County MUD Tax (MUD No. 383)

Tax Rate: $0.5250 per $100

Property MUD Taxable Value: $350,000

Estimated MUD Tax: $1,837.50 per year or $153.13 monthly payment

Fort Bend MUD Tax (MUD No. 23)

Tax Rate: $0.5550 per $100

Property MUD Taxable Value: $350,000

Estimated MUD Tax: $1,942.50 per year or $161.88 per month

Brazoria County MUD Tax (MUD No. 21)

Tax Rate: $0.8250 per $100

Property MUD Taxable Value: $350,000

Estimated MUD Tax: $2,887.50 per year or $240.63 per month

What You Should Know About MUD Taxes Before Making an Offer on a Home

Here are a few other essential things you must know about MUD taxes before buying a home:

MUD Tax vs. Property Tax

The MUD tax is one component of your property tax bill. The MUD, which is an independent taxing unit, charges the tax instead of a city or county.

You’ll find the following taxes from different jurisdictions on your annual property tax statement:

• MUD taxes, if applicable
• City taxes, if applicable
• School district taxes
• County taxes

Are MUD Taxes Deductible in Texas?

Yes, MUD taxes are deductible as local property taxes for eligible taxpayers.

When filing federal taxes, you must itemize your deductions to claim them. MUD tax deductions are subject to the federal SALT (state and local tax) deduction limit.

Remember: Utility charges, such as water and sewer usage fees, are not deductible as property taxes.

Is the MUD Tax Eligible for a Homestead Exemption?

In many cases, no. Municipal Utility Districts are independent taxing entities, which is why the $140,000 general residence homestead exemption does not apply to MUD taxes.

However, a MUD may adopt its own local homestead exemption and offer other exemptions to qualifying individuals.

Pro Tip: Contact the MUD or appraisal district to know the applicable exemptions.

Get Expert Mortgage Guidance From Preapproval to Closing

After using our Texas MUD tax calculator above, consider how the additional tax affects your monthly housing costs.

Exploring all the costs and details involved in buying a home can be complicated. At Texas United Mortgage, we help homebuyers like you understand your financial obligations and make informed decisions.

Contact us today to get preapproved for your dream home. One of our experienced loan officers will assist you for a seamless mortgage process.