How Much House Can You Afford in Houston? — Income, Taxes, and debt-to-income (DTI) ratio Explained

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Last verified on: June 21, 2026

Editorial note: This guide is for educational purposes only. Your actual affordability depends on your lender, debt, down payment, rate, taxes, insurance, and property details. Always confirm final numbers with a lender and property-specific records.

Research method: This article was manually checked against current Zillow, CFPB (Consumer Financial Protection Bureau), Texas Department of Insurance, and Houston public tax materials on June 21, 2026.

Why Houston Affordability Is Not Just About Price

Recent Zillow market data showed:

• average Houston home value: $264,336 as of March 31, 2026
• median sale price: $292,500 as of February 28, 2026
• median list price: $301,300 as of March 31, 2026

Those are useful planning anchors, but they do not tell you whether the monthly payment works for your budget.

The CFPB makes the affordability point plainly: “These costs are important in deciding how much you can afford.” In this article, “these costs” means the ownership costs that sit beyond principal and interest.

For Houston buyers, affordability usually depends on:

• purchase price
• down payment
• interest rate
• property taxes
• homeowners insurance
• PMI (Private Mortgage Insurance) if down payment is below 20%

The Better Question to Ask

Instead of asking:

• “What price home can I buy?”

Ask:

• “What monthly payment can I comfortably carry?”

That shift matters because a Houston mortgage payment can rise sharply once taxes and insurance are added.

Example 1: A Rough Budget Around a $300,000 Home

Assume:

• home price: $300,000
• down payment: 10%
• loan amount: $270,000

Now build a fuller monthly estimate:

A buyer who budgeted only for a principal-and-interest payment near $1,700 would be underestimating the real monthly cost by about $1,035 in this example.

Example 2: Same Price, Bigger Down Payment

Now assume:

• home price: $300,000
• down payment: 20%
• loan amount: $240,000

That can improve affordability in two ways:

• lower loan amount
• no PMI on many conventional loans

Simplified comparison

This is why affordability is not just about whether you can buy the home. It is also about how much you need to put down to make the payment workable.

Example 3: Why Taxes and Insurance Matter So Much

The Texas Department of Insurance market overview reports an average annual Texas homeowners premium of $3,291 for 2024. That is a useful statewide benchmark, but not a guaranteed Houston quote.

Property taxes can also be material. City of Houston public tax materials show a city tax rate of 0.51919 per $100, but the full property tax bill can also include other jurisdictions.

That means two buyers with similar loan amounts can still have noticeably different payments because of:

• different tax bills
• different insurance quotes
• different exemption status

A Simple Affordability Framework

If you want a cleaner budgeting process, do this:

Step 1: Pick a monthly comfort zone

Choose a payment range that still leaves room for:

• savings
• repairs
• utilities
• normal life expenses

Step 2: Back into the home price

Use the Houston Mortgage Calculator to test:

• home price
• down payment
• taxes
• insurance
• PMI

Step 3: Stress test the result

Run a few versions:

• a slightly higher tax estimate
• a slightly higher insurance estimate
• a lower down payment
• a slightly worse rate

If the payment stops working under small changes, the home is probably too expensive for your budget.

What a Houston Buyer Should Verify Before Trusting the Number

Before treating an estimate as “affordable,” verify:

• the actual property tax record
• whether the property is inside Houston city limits
• a real homeowners insurance quote
• whether flood insurance may be needed separately
• whether PMI applies to your loan structure

Common Buyer Mistakes

• budgeting from list price instead of monthly payment
• assuming taxes are minor
• forgetting PMI
• using a statewide insurance average as if it were a real quote
• ignoring the effect of a lower down payment

What This Article Intentionally Does Not Promise

This article does not tell you exactly what you can afford, because that depends on:

• income
• debts
• credit
• rate
• down payment
• property-specific taxes and insurance

It gives you a better framework for avoiding a false sense of affordability.

Recent Public Figures Worth Knowing

These are the current figures this article is comfortable using because they come from current public pages:

• Zillow average Houston home value: $264,336 as of March 31, 2026
• Zillow median Houston sale price: $292,500 as of February 28, 2026
• Zillow median Houston list price: $301,300 as of March 31, 2026
• Texas Department of Insurance average annual homeowners premium: $3,291 for 2024

Calculator Methodology

The Houston Mortgage Calculator estimates your total monthly housing payment — principal, interest, property taxes, homeowners insurance, and PMI — using Harris County-specific data and current market rate assumptions.

The principal and interest portion uses the standard fixed-rate amortization formula:

Monthly P&I = P x r(1 + r)^n / ((1 + r)^n - 1)

Assumptions the calculator uses:

• 30-year fixed-rate term (adjustable)
• Harris County property tax rates from configured city data
• Homeowners insurance based on Texas averages
• PMI for down payments below 20%

What the calculator does not replace: The calculator provides educational estimates only. It does not confirm loan approval, lock interest rates, or replace lender underwriting. Verify all figures with your lender and official tax records.

Related Reading

• Houston Mortgage Calculator with Taxes, Insurance, and PMI — model your full monthly payment with local tax and insurance data
• Texas Property Tax Escrow Example — see how property tax flows through escrow each month
• Houston First-Time Buyer Assistance Programs — compare Homebuyer Assistance Program (HAP) and Harvey Homebuyer Assistance Program 2.0 (HbAP 2.0) grants that lower cash-to-close

Official and Supporting Sources

• Zillow Houston housing market page
• CFPB: What costs come with taking out a mortgage?
• CFPB: What is loan-to-value and how does it relate to my costs?
• Texas Department of Insurance: Texas homeowners insurance market overview
• City of Houston: 2025 Tax Rate Information

Next Step

Use the calculator to find a payment range that still works after taxes, insurance, and PMI are included. That is a more useful affordability test than price alone.