How Much House Can You Afford in Katy, TX in 2026?
By Bobby Mohebbi | Mohebbi Realty Group Serving Houston, Katy, Fulshear, Richmond, Cypress & Surrounding Areas www.mohebbirealtygroup.com
This post is part of the Complete Guide to Buying a Home in Katy, Fulshear, Cypress & Richmond — your start-to-finish resource for navigating the west Houston housing market in 2026.Before you start browsing listings or walking through model homes in Katy, Fulshear, Cypress, or Richmond, you need to answer one question clearly: how much home can you actually afford?
Not how much a lender will approve you for — that number is often higher than what you should comfortably spend. The real question is what monthly payment fits your budget while still leaving room for savings, emergencies, and the life you want to live outside of your mortgage.
Bobby Mohebbi and the Mohebbi Realty Group team walk every buyer through this math before a single home tour is scheduled. Getting your budget right from the start prevents the heartbreak of falling in love with a home you cannot afford and ensures you are shopping with confidence, not anxiety.
This guide breaks down how lenders determine your buying power, what your actual monthly payment looks like at different price points in Katy, the loan programs available to you, and how down payment assistance can open doors you might not realize are open.
How Lenders Determine What You Can Afford?
Lenders use a formula called your debt-to-income ratio, commonly referred to as DTI. It is the single most important number in determining your mortgage approval and loan amount.
Your DTI compares your total monthly debt payments to your gross monthly income (your income before taxes). There are two versions lenders look at.
Your front-end DTI measures just your housing payment — including principal, interest, taxes, insurance, and any HOA fees — as a percentage of your gross monthly income. Most lenders want this at or below 28% to 33%.
Your back-end DTI measures your total housing payment plus all other monthly debt obligations — car payments, student loans, credit card minimums, personal loans — as a percentage of your gross monthly income. Most conventional lenders cap this at 43% to 45%, though FHA loans allow up to 50% in some cases with compensating factors.
Here is what that looks like in practice. If your household earns $8,000 per month before taxes ($96,000 per year), and the lender uses a 33% front-end guideline, your maximum housing payment would be approximately $2,640 per month. If your combined non-housing debts total $500 per month (car payment, student loans), your back-end DTI at that housing payment would be ($2,640 + $500) / $8,000 = 39.3%, which falls comfortably within conventional guidelines.
Keep in mind that what a lender approves you for and what you should spend are not always the same number. Bobby Mohebbi recommends that buyers target a total housing payment that leaves them feeling comfortable, not stretched. If the lender says you qualify for $3,200 per month but your gut tells you $2,800 is your ceiling, trust your gut.
What Does the Monthly Payment Actually Include in Katy?
Your monthly housing payment in Katy is not just your mortgage. It includes several components, and in Texas, property taxes are the one that surprises most buyers.
Your principal and interest payment is based on your loan amount and interest rate. This is the part you can estimate using any mortgage calculator. At a 6.25% rate on a $300,000 loan, principal and interest is approximately $1,847 per month.
Property taxes in the Katy area vary significantly by location. The effective rate depends on your school district (Katy ISD, Lamar CISD, or Cy-Fair ISD), your county (Harris, Fort Bend, or Waller), and whether your home is in a Municipal Utility District. Total tax rates across the Katy area typically range from 2.2% to 3.5%. On a $350,000 home, property taxes at 2.8% work out to approximately $817 per month. At 3.5% in a higher-rate MUD district, that climbs to roughly $1,021 per month — a difference of over $200 per month on the same priced home.
This is one of the most important reasons to work with a local agent who understands the tax landscape at the lot and section level. Bobby Mohebbi reviews the specific tax rate for every home his buyers consider, because the difference between two sections in the same community can add up to thousands of dollars per year.
For a deeper explanation of how MUD districts and tax rates work, read our guide to Property Tax Rates and MUD Districts in Katy, Fulshear & Cypress.
Homeowners insurance in the Houston metro typically runs $200 to $300 per month depending on the home's age, construction type, and proximity to flood-prone areas. New construction homes generally qualify for lower premiums due to updated building codes and materials.
Private mortgage insurance is required on conventional loans when you put less than 20% down. PMI typically adds $80 to $200 per month depending on your loan amount and credit score. FHA loans carry their own mortgage insurance premium that works differently. VA loans do not require any mortgage insurance.
HOA fees in Katy-area master-planned communities typically range from $75 to $200 per month, depending on the community and its amenities.
Affordability at Different Income Levels
Here is a practical look at what you can likely afford at various household income levels, using current mid-2026 rates and typical Katy-area tax and insurance costs. These estimates assume a 6.25% mortgage rate, a 2.8% effective property tax rate, $250 per month for insurance, $125 per month HOA, and 5% down with PMI.
If your household income is $70,000 per year ($5,833 per month), a conservative 30% front-end DTI targets a total housing payment around $1,750. That supports a purchase price in the range of $220,000 to $240,000. At this price point, you are looking at townhomes, smaller single-family homes, or entry-level new construction in communities with competitive builder incentives.
At $90,000 per year ($7,500 per month), a 30% target puts your payment ceiling around $2,250, which supports a purchase price in the $280,000 to $310,000 range. This opens up a solid selection of three-bedroom new construction homes in Katy, Hockley, and Richmond.
At $110,000 per year ($9,167 per month), your target payment is roughly $2,750, supporting a purchase price in the $340,000 to $370,000 range. This is squarely in the Katy median price range and opens up most master-planned community options.
At $140,000 per year ($11,667 per month), your ceiling is approximately $3,500, supporting a purchase price in the $430,000 to $470,000 range. At this level, you have access to larger homes in premium communities across Katy, Fulshear, and Cypress.
These are conservative estimates. Your actual buying power may be higher or lower depending on your credit score, existing debts, down payment, and the specific tax rate of the home you choose. The only way to know your exact number is to get pre-approved with a qualified lender.
Loan Programs Available to Katy-Area Buyers
One of the advantages Bobby Mohebbi brings to every buyer is knowledge of the full range of loan programs available — not just the one a single lender might steer you toward. Here is a breakdown of the major options.
Conventional loans are the most common loan type. You can put as little as 3% down through programs like HomeReady and Home Possible, which are designed for buyers earning at or below 80% of the area median income. A 5% down payment is the standard conventional minimum for most buyers. You will pay private mortgage insurance until you reach 20% equity, and most lenders require a credit score of 620 or higher. Conventional loans offer the most flexibility in terms of property types and loan amounts.
FHA loans are backed by the Federal Housing Administration and are popular with first-time buyers. The minimum down payment is 3.5% with a credit score of 580 or higher. FHA loans are more forgiving on credit history and allow higher debt-to-income ratios (up to 50% in some cases). The trade-off is that FHA loans carry an upfront mortgage insurance premium plus an annual premium that lasts for the life of the loan if you put less than 10% down.
VA loans are available to active-duty service members, veterans, and eligible surviving spouses. They offer zero down payment, no private mortgage insurance, and competitive interest rates. If you have VA eligibility, this is almost always the strongest loan product available. There is no monthly mortgage insurance cost, which can save you $150 to $300 per month compared to other loan types.
USDA loans are available for properties in designated rural areas and offer zero down payment with no PMI. While the core of Katy is not USDA-eligible, portions of the greater west Houston area — including parts of Hockley, Waller, and some unincorporated areas — may qualify. Bobby Mohebbi can help you determine whether a specific property falls within a USDA-eligible zone. If it does, this is one of the most affordable paths to homeownership available.
Down Payment Assistance Programs You Should Know About
Many buyers assume they need 20% down to buy a home. That is not true, and it has not been true for a long time. Between low-down-payment loan programs and the robust network of down payment assistance available in Texas, there are realistic paths to homeownership with very little out of pocket — including zero-down options.
The Texas State Affordable Housing Corporation (TSAHC) offers two programs that are among the most popular in the state. The Home Sweet Texas Home Loan Program provides down payment assistance of 3% to 5% of the loan amount to low- and moderate-income buyers. You can receive this assistance as a grant that never has to be repaid, or as a deferred, forgivable second lien at 0% interest that is forgiven after three years if you remain in the home. On a $350,000 home, a 5% grant is $17,500 toward your down payment and closing costs — effectively allowing you to buy with little to no money out of pocket.
The TSAHC Homes for Texas Heroes program provides the same structure of assistance but is specifically designed for teachers, firefighters, EMS personnel, police officers, correctional officers, and veterans. If you work in one of these professions, you may qualify regardless of whether you are a first-time buyer.
The Texas Department of Housing and Community Affairs (TDHCA) operates the My First Texas Home program, which offers up to 5% of the loan amount as down payment assistance at 0% interest. The assistance is provided as a deferred, forgivable second lien. TDHCA also offers the My Choice Texas Home program, which extends similar assistance to repeat buyers — not just first-time purchasers.
Both TSAHC and TDHCA programs can be paired with the Texas Mortgage Credit Certificate, which gives qualifying buyers a federal tax credit of 15% of their annual mortgage interest. On a $300,000 loan at 6.25%, that translates to roughly $2,800 per year in tax credits — money back in your pocket every year for the life of the loan.
The City of Houston Homebuyer Assistance Program offers up to $50,000 in down payment and closing cost assistance for buyers with household income at or below 80% of the area median income. This assistance is structured as a no-interest, forgivable loan that is forgiven after five years of occupancy.
Harris County also operates its own Down Payment Assistance Program for eligible residents purchasing within the county.
Bobby Mohebbi connects every buyer with lenders who are approved to originate these programs and who understand how to stack multiple forms of assistance when eligible. Not all lenders participate in DPA programs, so working with one who does is essential.
How Builder Incentives Add to Your Buying Power
In addition to down payment assistance, the current builder incentive environment in the Katy, Fulshear, Cypress, and Richmond corridors effectively increases your buying power even further.
When a builder offers a 2-1 rate buydown on a $330,000 loan, your effective interest rate drops from 6.25% to 4.25% in year one. That reduces your monthly principal and interest payment by roughly $400 in the first year. Closing cost credits of $5,000 to $15,000 reduce your cash-to-close. Design center credits reduce the amount you would otherwise spend on upgrades after moving in.
The combination of a DPA grant covering your down payment, a builder covering your closing costs, and a rate buydown lowering your monthly payment creates a scenario where a buyer with limited savings can purchase a new construction home in a strong school district with very little out of pocket and a monthly payment competitive with rent.
For a full explanation of how builder incentives work and what to watch out for, read our guide to Builder Incentives and Rate Buydowns in Houston 2026.
The Steps to Finding Your Number
Here is the practical sequence Bobby Mohebbi recommends to every buyer who wants to understand exactly what they can afford.
Step one is getting pre-approved. A pre-approval is not a pre-qualification. Pre-qualification is a rough estimate based on self-reported information. Pre-approval involves a lender pulling your credit, verifying your income and assets, and issuing a written approval for a specific loan amount. This is the number that matters, and it costs you nothing.
Step two is understanding your full monthly payment — not just principal and interest, but taxes, insurance, PMI or MIP, and HOA. Bobby Mohebbi builds this full picture for every buyer using the specific tax rate and insurance estimate for the homes they are considering.
Step three is identifying which loan programs and assistance you qualify for. This is where working with the right lender makes a significant difference. A lender who participates in TSAHC, TDHCA, and local DPA programs can present options that a non-participating lender simply cannot offer.
Step four is setting a personal comfort ceiling that you feel good about — not just what the lender approves, but what works within the full picture of your life, including childcare, car payments, savings goals, and the unexpected expenses that are part of life.
Once you have that number, you can shop with clarity and confidence. You will know exactly which neighborhoods, communities, and builders fall within your range, and you will not waste time on homes that do not fit.
For a broader view of the current market conditions, including pricing trends, inventory levels, and whether now is the right time to move forward, read our guides to Is Now a Good Time to Buy in Katy, TX? and Rent vs Buy in Katy, TX in 2026.
Frequently Asked Questions
How much income do I need to buy a home in Katy, TX?
As a general guideline, a household income of $90,000 to $110,000 per year can typically support a home purchase in the $280,000 to $370,000 range in the Katy area, depending on your debts, down payment, credit score, and the specific tax rate of the property. Down payment assistance and builder incentives can extend your buying power further. A mortgage pre-approval gives you the exact number.
Can I buy a home in Katy with no money down?
Yes, in certain situations. VA loans offer zero down payment for eligible veterans and active-duty service members. USDA loans offer zero down for properties in designated rural areas, which may include parts of greater west Houston like Hockley and Waller. Down payment assistance programs from TSAHC, TDHCA, and the City of Houston can also cover your entire down payment in the form of grants or forgivable loans, effectively enabling a zero-down purchase on FHA or conventional loans as well.
What credit score do I need to buy a home in Katy, TX?
The minimum credit score depends on the loan type. Conventional loans typically require 620 or higher. FHA loans require 580 for the 3.5% down payment option (or 500 with 10% down). VA and USDA loans do not have a government-mandated minimum, but most lenders require at least 620. Higher credit scores qualify you for better interest rates, which directly affects your monthly payment and total cost.
What are the down payment assistance programs available in Texas?
Texas has one of the most robust networks of DPA programs in the country. The most widely used are TSAHC Home Sweet Texas (3-5% grant or forgivable loan), TSAHC Homes for Texas Heroes (for public service workers and veterans), TDHCA My First Texas Home (up to 5% at 0% interest), TDHCA My Choice Texas Home (available to repeat buyers), City of Houston Homebuyer Assistance (up to $50,000), and the Harris County DPA Program. Bobby Mohebbi connects buyers with lenders who are approved to originate these programs.
How do property taxes affect how much home I can afford in Katy?
Property taxes in the Katy area range from roughly 2.2% to 3.5% depending on location and MUD district. On a $350,000 home, the difference between a 2.5% rate and a 3.5% rate adds roughly $292 per month to your payment. That is equivalent to the impact of a nearly 0.75% change in your mortgage interest rate. Understanding the tax rate for a specific property before making an offer is essential, and Bobby Mohebbi reviews this with every buyer.
What is the difference between FHA, VA, conventional, and USDA loans?
Conventional loans require 3-5% down and 620+ credit with PMI until 20% equity. FHA loans require 3.5% down and 580+ credit with mortgage insurance for the life of the loan. VA loans offer 0% down and no mortgage insurance for eligible veterans and service members. USDA loans offer 0% down and no PMI for properties in designated rural areas. Each program has different trade-offs on rates, insurance costs, and eligibility requirements. The right choice depends on your individual financial situation, and Bobby Mohebbi connects you with lenders who can compare all options side by side.
Bobby Mohebbi is the founder of Mohebbi Realty Group, serving home buyers and sellers across Houston, Katy, Fulshear, Richmond, Cypress, and surrounding communities. To discuss your home buying goals or get connected with a trusted lender for a no-obligation pre-approval, visit www.mohebbirealtygroup.com or reach out directly to the Mohebbi Realty Group team. Mohebbi Realty Group is committed to equal housing opportunity and serves all buyers and sellers without regard to race, color, religion, sex, handicap, familial status, national origin, sexual orientation, gender identity, or any other protected class under federal, state, or local fair housing laws.