Understanding Texas Property Taxes on New Construction Homes: How to Set Up the Right Payment Plan

Table of Contents 

• Introduction
• How Escrow and County Assessments Create Texas New Construction Property Tax Problems
• Real Examples of Texas New Construction Property Tax Sticker Shock
• What to Confirm With Your Lender and Realtor About Texas Property Taxes
• Escrow Options, Down Payment, and Your Tax Responsibilities
• Handling Escrow Overages, Refunds, and Property Tax Recalculations
• Timing: When the County Changes Your New Construction Tax Assessment
• Builder Credits and Pro Rata Texas New Construction Property Tax Proration
• Texas Non-Disclosure Rules and When to Speak With the County
• Homestead Exemption in Texas: What It Is and Why You Should File
• Final Checklist Before You Close
• FAQs

Introduction

Texas property taxes on new construction homes are often much higher than buyers expect because county assessments change dramatically after a house is built. In many North Texas neighborhoods, the effective property tax rate lands between 1.9% and 3.1% of the property value. That tax hit gets folded into your monthly mortgage payment via an escrow account, and if your lender sets up that escrow based only on the pre-build land value, you can get hit with a big shortfall and a sudden monthly payment increase.

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How Escrow and County Assessments Create Texas New Construction Property Tax Problems

Counties assess land and improvements separately. If you buy a lot before a house exists, the county only values the land. That might be something like $40,000. When the county does its next assessment after construction, the value can jump to something like $440,000 because now there is a house on the land.

Your lender is supposed to fund an escrow account for property taxes and insurance. If the escrow amount is calculated on the unimproved land value, your monthly mortgage statement will understate what your taxes will be once the county reassesses with the house in place. When the county increases the assessed value, your escrow can be short and your mortgage company will raise your monthly payment to make up the difference.

Real Examples of Texas New Construction Property Tax Sticker Shock

Imagine the assessment jumps from $40,000 to $440,000. Your tax bill could increase proportionally. Many buyers get a letter saying their escrow is short and their monthly payment will go up—sometimes by hundreds or even around $900 per month depending on the situation. That’s not a surprise anyone wants on move-in day.

What to Confirm With Your Lender and Realtor About Texas Property Taxes

The single most important action when buying a new construction home is to confirm how your lender is calculating escrow. Ask directly that the lender estimate property taxes based on the improved value(land plus the house), not just the unimproved lot value.

A realistic estimate is still a guess, but it should be close enough to prevent large surprises. You may be a little short or a little over, but being within a reasonable range is the goal. If a builder’s lending department shows a tempting low monthly payment based only on the raw lot assessment, challenge it.

Escrow Options, Down Payment, and Your Tax Responsibilities

An escrow account for taxes and insurance is usually required unless you put down at least 20% of the home's value. If you choose to waive escrow because you have 20% down, be prepared to manage and save for property taxes and insurance yourself. That requires discipline; many buyers prefer the lender-handled escrow to avoid surprises.

Handling Escrow Overages, Refunds, and Property Tax Recalculations

Sometimes your escrow will end up with an overage and the mortgage company will send a refund check. Do not spend that refund right away. Lenders recalculate escrow annually, and if your account later shows a shortage, they will ask for the money back or increase monthly payments again. Keep that refund in a separate savings account until your escrow statement stabilizes.

Timing: When the County Changes Your New Construction Tax Assessment

If you close in a given calendar year, the first tax bill you pay may be based on the unimproved lot. The following year the county will typically reassess with the improvement in place and taxes will be recalculated. For example, buy in 2024 and you might pay 2024 taxes at the unimproved rate, but 2025 taxes could include the structure. Plan for that jump.

Builder Credits and Pro Rata Texas New Construction Property Tax Proration

Builders often give a credit at closing for the portion of the year they owned the property. In Texas this is commonly calculated on a 360-day pro rata basis: the county’s assessed tax amount is divided by 360 and multiplied by the number of days the builder held the property. You will see that credit on your closing statement, but remember you remain responsible for the full year’s taxes when they come due.

Texas Non-Disclosure Rules and When to Speak With the County

Texas is a non-disclosure state. You are not required to tell the county how much you paid for the house when they ask, and in most cases it is wise to avoid volunteering your purchase price. If the county assessment is lower than what you paid, staying quiet avoids increasing your tax basis unnecessarily.

If the county assessment is higher than what you actually paid, you can present closing documents in the first year to request an adjustment. That is the time to show evidence of the purchase price.

Homestead Exemption in Texas: What It Is and Why You Should File

File a homestead exemption as soon as the house is your primary residence and your driver’s license matches the new address. The homestead exemption reduces the taxable value—recently increased to remove $100,000 from the taxable base in some contexts—so it saves you a few thousand dollars per year on average. File the one-page form on your county’s website; it only needs to be done once and it applies to your primary residence.

Other things to watch

• Homeowners insurance increases can also create an escrow shortage.
• Ask lenders to show an escrow estimate that accounts for likely tax reassessment.
• When you receive a county assessment letter, be careful how you respond—silence can be strategic.

Final checklist before you close

1. Confirm the lender is estimating escrow using the improved value, not just the lot. 
2. Ask for an itemized escrow estimate showing projected taxes and insurance for the first 12 months. 
3. File your homestead exemption immediately after you move in. 
4. Keep any escrow refund in reserve until annual escrow calculations are complete. 
5. Keep detailed closing documents handy if you need to contest the county’s first-year assessment. 

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FAQs

Do I have to have an escrow account for property taxes and insurance?

You typically must have escrow unless you put at least 20% down on the home's value. If you waive escrow, you are responsible for saving and paying taxes and insurance directly when due.

How can I avoid sudden increases in my monthly payment after closing?

Make sure your lender estimates escrow using the expected improved value of the property. Confirm that the escrow calculation is realistic and ask for a breakdown showing projected taxes and insurance.

When will the county reassess my new construction home?

Counties typically reassess on an annual cycle. If you buy when the lot was assessed but before improvements, expect the reassessment the next tax year to include the structure and raise the taxable value.

Should I tell the county how much I paid for the house?

Texas is a non-disclosure state. You do not have to report your purchase price. If the county’s assessment is lower than your purchase price, keep quiet. If the assessment is higher than what you paid, the first year is the time to present closing documents and request an adjustment.

What is the homestead exemption and how much does it save?

The homestead exemption reduces the taxable value of your primary residence. It is a one-page filing on your county's website sent after your driver’s license reflects your new address. It can remove a significant amount from the taxable base and save you a few thousand dollars annually depending on your area.

If you are buying new construction in North Texas, prioritize the escrow conversation early. It’s the one piece that can turn a comfortable monthly payment into a painful surprise. Confirm numbers, file your homestead exemption, and keep closing documents organized. Those steps will protect you from the worst of the sticker shock.

READ MORE: Where To Buy New Construction Homes In DFW: My 2026 Checklist