Your Standard Buying Power
$318,000
at a 45% debt ratio, payment about $2,900/mo
+ up to $15,300 assistance
Estimates only, from figures you enter. Assumes a 30-year fixed loan, the selected area's combined property tax rate, your insurance figure, and PMI of about 0.7% annually when down payment is under 20%. Actual qualification depends on credit, documented income and debts, loan program, and the specific property. Not a loan offer or a commitment to lend. Contact a licensed mortgage loan originator for numbers specific to your situation.
How Affordability Is Actually Calculated
Lenders work backward from your debt-to-income ratio. The formula:
Max Housing Payment = (Gross Monthly Income × DTI cap) − Monthly Debts
Max Price = the price whose FULL payment (P&I + taxes + insurance + PMI) fits that budget
Worked example: a $100,000 household income is $8,333 per month. At the standard 45% cap with $500 in monthly debts, the housing budget is $3,250. In an area taxed at 2.10% with $25,000 down, that budget supports roughly a $318,000 home. Move the same buyer to a 3.20% MUD district and the max price drops by tens of thousands, because the tax line eats payment capacity before the mortgage does. That is why a Houston affordability answer without a real tax rate is fiction.
Which Tier Should You Shop?
The 45% standard tier is what most lenders approve comfortably; the 50% aggressive tier is what strong files can stretch to; the 36% conservative tier is what leaves real margin for Houston's annual tax reassessments, insurance increases, and life. Qualification is a ceiling, not a target. Most buyers do best shopping between conservative and standard, then letting a strong deal, not a stretched budget, pull them upward. If the down payment is the limiter, check whether you qualify for up to 5% in assistance with the down payment assistance checker. Once you have a target price, see the full monthly payment for any neighborhood in the Houston mortgage calculator, browse real inventory in your band on Houston homes for sale, or go straight to a personalized quote. Self-employed with heavy write-offs? Your tax returns may understate your buying power; the bank statement calculator shows what your deposits qualify for instead.
Affordability Questions
How much house can I afford in Houston on my salary?
A useful rule: your total housing payment (principal, interest, taxes, insurance, PMI, HOA) plus your other monthly debts should stay under about 45% of gross monthly income, with 36% conservative and 50% the aggressive ceiling some programs allow. In Houston the answer depends heavily on property taxes: at a $100,000 household income with $500 of monthly debts and 5% down, the max price lands roughly in the $280,000 to $340,000 range depending on whether the area's tax rate is 2.1% or 3.2%. Run your own numbers in the calculator above; the tax rate selector changes the answer more than most people expect.
Why does the same income buy less house in Houston than other states?
Property taxes. Texas has no state income tax and funds services through property tax rates that run 1.8% to 3.5% of home value in the Houston area. On a $350,000 home, the difference between a 1% national assumption and a 2.7% MUD-district reality is about $495 per month of payment capacity, which translates to roughly $70,000 of price. Always calculate affordability with the actual tax rate of the neighborhood you are shopping.
What debt-to-income ratio do lenders allow?
Conventional loans typically cap total DTI around 45%, with automated approvals stretching to 50% for strong files. FHA can approve up to the mid-50s with compensating factors. Conservative planners target 36%. The calculator shows all three tiers so you can see the spread between what a lender may approve and what leaves comfortable room in your budget.
How does my down payment change what I can afford?
Two ways. A bigger down payment directly raises the price your loan supports, and crossing 20% down removes PMI, which frees up payment capacity for more house. Below 20% down on a conventional loan, PMI of roughly 0.3% to 1.5% of the loan per year rides along until you reach 20% equity. If saving the down payment is the constraint, Texas down payment assistance can contribute up to 5% of the loan amount for eligible buyers.
Should I buy at the maximum amount I qualify for?
Usually no. Qualification is a ceiling, not a recommendation. The gap between the 45% standard tier and the 36% conservative tier is your margin for property tax increases (Houston appraisals reset annually), insurance premium jumps, and life changes. Many experienced buyers shop one tier below what they qualify for and use the difference for repairs, furniture, and reserves.
Does the calculator include HOA and MUD fees?
MUD taxes are captured through the area tax rate selector, which is why the Katy MUD and Bridgeland options carry higher rates than inside-the-loop Houston. HOA dues vary too much by community to assume, so add your target community's dues to the monthly debts field for an accurate read; $60 to $300 per month is typical in Houston subdivisions.
How accurate is an affordability calculator?
It is a strong first read, not an approval. Real qualification depends on credit score, exact debt payments on your credit report, income documentation type, loan program, and the specific property's taxes and insurance. The fastest way to a real number is a pre-qualification, which takes a short conversation and no commitment.
What income counts toward affordability?
Lenders count stable, documentable gross income: salary, hourly with history, bonus and overtime with a track record, self-employment income (via tax returns or bank statement programs), rental income, and some benefits. If you are self-employed and your tax returns understate what you earn, a bank statement program may qualify you on deposits instead.