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Why Your Payment Jumped: Escrow Shortages on New Construction in Texas

The first-year tax bill on a new house is often assessed on a lot, not a house. The second one is not, and that is where the payment increase comes from.

5 min readMali Gariani

You bought a new house, your payment was $2,900, and eighteen months later a letter arrived saying it is now $3,600. Nothing was wrong with your loan. This was always going to happen.

It is the most predictable unpleasant surprise in North Texas home buying, it happens to a large share of new construction buyers, and it is almost entirely preventable with one question asked before closing.

The Mechanism, Step by Step

  1. Texas appraisal districts value property as of January 1 each year. That date is the whole story.
  2. Your house did not exist on that date. If the lot was bare ground or partially built on January 1, the district assessed it as land, not as a finished home.
  3. Your lender funded the escrow account from the tax figure available, which was the bill on a lot. So the monthly escrow portion of your payment was built on a fraction of your real liability.
  4. The following January 1, the house exists. The district assesses the improved property, and the bill multiplies.
  5. The servicer runs an escrow analysis, finds the account short, and adjusts. That letter is the one that arrives with a number you were not expecting.

Why It Is a Double Hit

The increase is larger than the tax increase itself, and understanding why makes the letter less alarming.

Your new payment has to absorb two separate things at once:

  • The higher ongoing monthly accrual, so the account collects enough for next year’s real bill.
  • Repayment of the shortfall already incurred, typically spread over twelve months.

Which is why the corrected year is the worst one. Once the shortfall is repaid, the payment eases back to the ongoing level, still well above your original payment but below the peak. If you can pay the shortfall as a lump sum, the ongoing payment drops accordingly, and most servicers offer that choice if you ask.

Where a PID assessment or a MUD is involved, the effect can be larger still, because those are separate line items that also scale with the improved value.

It Is Not Only New Construction

The same mechanism catches resale buyers, through a different route, and it is worth knowing because the fix is identical.

The tax figure shown on a listing reflects the seller’s situation: their exemptions, and their capped appraised value. If the seller is over 65 with a school tax ceiling, or has owned the house for twelve years and is protected by the ten percent cap, their bill can be a fraction of what yours will be on the same house.

Your value resets to what you paid, and their exemptions do not transfer. How the cap and the reset work, and what your own exemption is worth.

How to Prevent It Before You Close

  1. Ask the lender to escrow against the estimated fully assessed value. Some will, particularly if you raise it early and explain why. This is the cleanest fix and it costs you nothing except a higher, correct payment from day one.
  2. Compute the real number yourself. Take your purchase price, apply your homestead exemption, and multiply by the full combined tax rate for that exact address including any PID or MUD. That is your real annual bill. How to pull the rate in five minutes.
  3. Divide by twelve and compare it to the escrow line on your Closing Disclosure. If they differ substantially, you now know the size of your future increase before you sign.
  4. Save the difference every month. If the lender will not adjust the escrow, set the gap aside yourself. When the shortage letter arrives, you pay it as a lump sum and your ongoing payment stays lower.
  5. File your homestead exemption immediately after closing. It reduces the bill and starts the appraisal cap running.
  6. Protest the first full assessment. A recent purchase price is the strongest evidence of market value that exists. How to protest.

Do this before you decide what house you can afford, not after. A payment that works at the year-one escrow figure and does not work at the year-two figure is a house you cannot afford, and the sales office will not be the one to tell you. Model the correct number in the mortgage calculator and check it against your budget in the affordability calculator.

If It Has Already Happened to You

  • Confirm your homestead exemption is actually on file. A surprising number of owners never filed, or filed and were not processed. Check the appraisal district record directly rather than assuming.
  • Ask the servicer about paying the shortfall as a lump sum. It reduces the ongoing payment noticeably.
  • Protest the valuation.New construction is assessed on a mass-appraisal basis and the district’s figure is not always right. If you paid less than they assessed, you have the best possible evidence.
  • Check for a PID or MUD line you did not know about, and understand its remaining term.
  • Do not assume it will happen again next year. Once the house is fully assessed and your exemption is in place, the ten percent cap limits how fast the taxable value can climb from there.

Frequently Asked Questions

Why did my mortgage payment go up on a new construction home in Texas?+

Almost always an escrow shortage caused by property taxes. The first tax bill after you close is frequently assessed against the value of an unimproved lot rather than a finished house, so your escrow account was funded against a fraction of the real bill. When the house is assessed fully, the account is short and the payment rises to cover both the shortfall and the higher ongoing amount.

How much can an escrow shortage increase your payment?+

On a new North Texas home it is routinely several hundred dollars a month, and it can be more where a special district assessment is involved. The increase has two parts: the higher monthly tax accrual going forward, and repayment of the shortfall spread over twelve months, which is why the first corrected year is the most painful.

Can I avoid an escrow shortage on a new build?+

You can substantially reduce it. Ask the lender to escrow against the estimated fully assessed value rather than the current tax bill, file your homestead exemption immediately, and set aside the difference yourself if the lender will not adjust. None of that changes the tax owed; it changes whether you are surprised by it.

Do I have to pay an escrow shortage in a lump sum?+

Usually not. Servicers typically offer to spread the shortfall over the following twelve months as part of your payment, though you can generally pay it in a lump sum instead if you prefer to keep the ongoing payment lower. Ask which options are available rather than accepting the first letter you receive.

Does the homestead exemption fix an escrow shortage?+

It reduces the taxable value and therefore the bill, so it helps meaningfully, and it also starts the ten percent appraisal cap running for future years. It does not eliminate the jump from lot value to house value, which is usually the larger part of the increase. File it anyway, immediately after closing.

Run Your Own Numbers

About the Author

Mali Gariani, licensed North Texas realtor

Licensed Realtor · DFW North Texas

Specializing in Plano, Frisco, McKinney, and Allen. Helping buyers and sellers navigate North Texas since 2015, with honest advice, deep local knowledge, and no pressure.

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