Mortgage Affordability Calculator

Mortgage Affordability Calculator

Estimate how much house you can afford based on income, debts, interest rate, and lender DTI limits.

How Much House Can I Afford?

One of the first questions most home buyers ask is simple: how much house can I afford? The answer depends on more than just your income. Lenders look at your monthly debts, down payment, interest rate, and your debt-to-income (DTI) ratio before approving a mortgage.

Our mortgage affordability calculator gives you a quick, realistic estimate of your home buying budget. Instead of guessing, you can see how changes in income, debts, or interest rate affect the price range you should target.

How Much Mortgage Can I Afford Based on Income?

In practice, most lenders rely heavily on debt-to-income (DTI) guidelines when deciding how much mortgage you can afford.

• Front-end DTI: the percentage of your income that goes toward housing costs.
• Back-end DTI: the percentage of your income that goes toward all monthly debts.

In many cases, lenders prefer:

• Front-end DTI around 28% to 31%
• Back-end DTI around 36% to 43%

The affordability calculator above applies these DTI limits to estimate a home price range that most lenders would consider reasonable.

What Factors Affect Home Affordability?

If you’re wondering how much mortgage can I borrow, these factors make the biggest difference:

• Annual income: Higher income increases your borrowing power.
• Monthly debts: Credit cards, car loans, and student loans reduce affordability.
• Down payment: A larger down payment lowers the loan amount.
• Interest rate: Even small rate changes impact monthly payment.
• Property taxes and insurance: These are included in real housing costs.
• HOA fees: Common in condos and planned communities.

Because these numbers vary widely from one buyer to another, using a home affordability calculator gives a far more accurate picture than simple rules of thumb.

Example: How Much Home Can I Afford?

Let’s say you earn $90,000 per year with $500 in monthly debts and plan to put $40,000 down. With typical lender DTI limits, your affordable home price will usually fall within a specific range based on interest rates and taxes.

Try adjusting the numbers in the mortgage affordability calculator above to see how your buying power changes in real time.

Tips to Increase How Much House You Can Afford

• Pay down credit cards and personal loans.
• Increase your down payment if possible.
• Shop for a lower interest rate.
• Avoid taking new debt before applying.
• Consider a longer loan term to reduce monthly payment.

Even small improvements in your DTI can noticeably increase your approved loan amount.

Why Use Our House Affordability Calculator?

Many online tools give rough estimates. This calculator is designed to be more practical for real buyers by including taxes, insurance, HOA fees, and lender DTI limits in one place.

• Instant results
• Realistic lender guidelines
• Works for first-time buyers and repeat buyers
• Mobile friendly and fast

Use it as a starting point before speaking with a lender for an exact quote.

Frequently Asked Questions

How much mortgage can I afford with my salary?

It depends on your debts, down payment, and interest rate. Most lenders allow total monthly debts up to about 36% to 43% of gross monthly income. Use the calculator above for a personalized estimate.

What is the 28/36 rule in mortgage lending?

The 28/36 rule is a common guideline. It suggests spending no more than 28% of gross income on housing and no more than 36% on total debt payments. Many lenders use a similar framework when evaluating applications.

How much house can I afford with $100k income?

With a $100k salary, affordability varies widely based on debts, interest rates, taxes, and down payment. In many cases, buyers may qualify somewhere in the mid-$300k to mid-$400k range, but the calculator above will give a more accurate estimate for your situation.

Does this affordability calculator include taxes and insurance?

Yes. Property taxes, homeowners insurance, and HOA fees are included so your monthly payment estimate is more realistic.

Is this the exact amount a lender will approve?

No. This tool gives a solid working estimate, but final approval depends on your credit score, loan program, and lender guidelines. Always confirm with a mortgage professional before making an offer.