How Much House Can You Afford?

How To Calculate Your Ideal Mortgage

Man using laptop surrounded by moving boxes with dog nearby
•••

svetkid / Getty Images

If you're in the market to buy a home, the most significant question to ask yourself is, "How much house can I afford?" This is especially important to consider because a lender might be willing to approve you for more than you can comfortably pay for.

Many factors can affect how affordable it is for you to buy a home. Learn what they are so you can come up with a solid number for how much home you can afford.

Key Takeaways

  • Lenders may approve you for more than you can afford.
  • Use the 25% rule and the 28/36 rule to determine the upper and lower bounds for what you can afford.
  • Your debt, income, credit score, down payment savings, and other factors will affect how much home you can afford.

How Do I Decide How Much House I Can Afford?

Figuring out how much home you can afford isn't a straightforward answer. You'll need to look at hard numbers and might need to adjust your home desires for what you can afford.

Lenders will set an absolute cap on how much you might be approved for, but these are often much higher than financial experts recommend. Most advisors recommend a more cautious approach with two basic rules of thumb to guide you. Somewhere between those two rules will be what is right for your situation.

You can do this by taking an in-depth, honest review of your finances. Consider your emotions, too: Are you comfortable buying closer to the max of your budget when that might put you more at risk of default if something were to happen down the road? Or do you prefer to play it safer and stick to the more conservative guidelines? Only you can answer these questions.

How To Estimate a Budget for Your Mortgage

First, calculate the maximum monthly payment you can afford since this will set the upper boundary for how much home you can buy. For example, the median household income between 2019 and 2020 was $67,521. With no debt, that translates into a monthly mortgage payment of $1,575 using the 28/36 rule.

Next, figure out the more conservative estimates based on the 25% rule. Continuing our example, that would translate into a housing payment of $1,407 per month. But if you'll be required to pay $100 to an HOA and want to save $200 a month for home repairs, that translates into being able to afford a payment of $1,107 per month.

These two numbers—$1,407 and $1,575, in our examples—give you lower and upper bounds on what you might be able to afford. You can then use a mortgage calculator to generate an upper and lower total mortgage amount. This will give you a target price range for a home that you can be confident you can afford.

Debt-to-Income Ratio: The 28/36 Rule

Lenders use your debt-to-income ratio (DTI) to set a cap on the maximum price of a home you can buy. They use your DTI to figure out the maximum monthly mortgage payment you can afford and then back-calculate to see how large of a mortgage that works out to.

Your DTI is calculated by dividing your total monthly income by your total monthly debt payments. For example, if you earn $2,000 per month before taxes and pay $200 toward your student loans, your DTI ratio is 10% (2,000 / 200 = 10).

There are many different types of mortgage programs; each one has its own rules about the maximum DTI you can have and still be approved. In general, many lenders use the 28/36 rule, which limits you to:

  • No more than 28% of your income toward the mortgage payment
  • No more than 36% of your income toward all debt payments combined, including your mortgage

If you're paying 10% of your income toward debt, you'd be able to afford a maximum monthly mortgage payment of 26% of your income (36% - 10%). However, if you had no debt at all, you could afford a mortgage payment of up to 28% of your income.

Some loan programs allow you to use a DTI as high as 50% for all debts combined instead of 36%. Keep in mind this makes you more likely to be "house poor," meaning that you may not have much left to spend each month after you've satisfied your house payments.

Your Credit Score

Lenders use your DTI to determine the price of the house you can afford. One of the variables that go into that calculation is your interest rate, and your credit score has a significant impact on this.

A higher credit score translates into a lower interest rate. This means you're not paying as much to your lender, and in turn, you can be approved for a more expensive home. Conversely, a lower credit score translates into a higher interest rate, which can mean a more expensive loan and a smaller approval amount.

Down Payment

Your down payment also affects how much home you can buy. Most lenders offer conventional loans with private mortgage insurance (PMI) for down payments ranging from 5%-15%. However, you may be eligible for an FHA loan with a minimum down payment requirement of 3.5%.

Down payments do much more than create eligibility for specific loans—they reduce the amount of money you pay for the loan. The more you can put down, the better off you'll be in the long run. For example, if you have good to excellent credit, a 30-year $200,000 mortgage with a 2.35% interest rate and no down payment, you'll pay $78,903 in interest, plus you'll need private mortgage insurance.

The same loan with a 20% down payment of $40,000 will reduce the total interest you pay to $63,123. With the same down payment and loan amount, you could change it to a 20-year mortgage and only pay $40,688 in interest.

Other Costs To Consider

The ongoing costs of buying a home are more than just your mortgage payments. You'll also have to budget for:

  • HOA fees
  • Property taxes
  • Home upgrades
  • Homeowners insurance
  • Maintenance and repairs

Most financial experts recommend keeping all of these monthly expenses (mortgage included) within 25% of your income. Note that this is much lower than the amount many lenders might approve.

Frequently Asked Questions (FAQs)

How much mortgage can I qualify for?

Lenders use your debt-to-income ratio to determine how much home you may qualify to buy. Your credit score, down payment savings, mortgage type, and other factors also help determine how much home you can qualify for. Typically, lenders will approve you for far more than what's "affordable," so figure out that number on your own and stick with it when shopping for a home.

How does a mortgage work?

When you take out a mortgage, you agree to put a down payment toward the home (20% of the purchase price is an advisable number) in exchange for your lender paying the rest of the sales price to the seller. You then pay back your lender, typically over 30 years. After that time, you will be the sole owner of your home.

How much house can I afford on a $60,000 salary?

How much house you can afford with a $60,000 per year salary depends on home prices in your area, your debt-to-income ratio, and your creditworthiness. For example, if you have good to excellent credit, no other debt, put 20% down on a 30-year loan with a 2.35% interest rate, and use the 28/36 rule, you could afford total payments of up to $1,800 per month ($5,000 per month x 36%). Using the home price slide on the mortgage calculator results in a loan of about $380,000.

Article Sources

  1. Federal Deposit Insurance Corporation. "Loans and Mortgages."

  2. U.S. Census Bureau. "Income and Poverty in the United States: 2020," Page 1.

  3. Fannie Mae. "Selling Guide."

  4. Consumer Finance Protection Bureau. "How Does My Credit Score Affect My Ability To Get a Mortgage Loan?"

  5. Consumer Finance Protection Bureau. "How To Decide How Much To Spend on Your Down Payment."

  6. Consumer Reports. "Here's How Much Mortgage You Can Actually Afford."