Home/ Financial/ Mortgage Calculator/ San Antonio
Planning to buy a home in San Antonio? Use this free mortgage calculator to estimate your monthly payment based on San Antonio's current real estate market. With an average home price of around $270,000, buyers in San Antonio, TX typically need to factor in property taxes, insurance, and a competitive down payment.
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San Antonio Tip: In San Antonio, most buyers target a down payment of 10–20% on a home priced near $270,000. At that price with a 20% down payment and today's rates, your principal and interest payment would be in the range shown above. Use the fields to adjust for your specific situation.

How to Use This Mortgage Calculator for San Antonio

Enter your home price, down payment, loan term, and interest rate to instantly see your principal and interest (P&I) payment. The fields above are pre-filled with San Antonio's approximate median home price — adjust them to match your specific situation.

Mortgage Rates in San Antonio, TX

Mortgage rates in San Antonio generally track the national average set by 30-year Treasury yields and Federal Reserve policy. TX state-specific property taxes and insurance costs vary by county, so always get local quotes. The property tax field above lets you include those costs in your monthly total.

How Much House Can You Afford in San Antonio?

The 28/36 rule is a useful guideline: your mortgage payment should not exceed 28% of gross monthly income, and total debt payments should not exceed 36%. Use the results above to check whether a specific San Antonio home price stays within that range for your income.

30-Year vs 15-Year Mortgage in San Antonio

A 30-year mortgage keeps monthly payments lower — important in a higher-cost market like San Antonio. A 15-year mortgage saves significantly on total interest. Run both scenarios using the Loan Term dropdown above to compare the long-term cost difference for San Antonio home prices.

First-Time Buyer Programs in TX

TX offers first-time homebuyer assistance programs through the state housing authority, including down payment grants and below-market rate mortgages. Check with a San Antonio-area HUD-approved housing counselor for programs you may qualify for.