How much house can you buy?

By
Real Estate Broker/Owner with Real Living GreatWest

One of the major problems in the mortgage industry today is, most potential home buyers over estimate how much home they can afford. I will discuss how your bank evaluates your income and how you can use what the banks use to figure out how much you can spend.

The two major ratios that banks use to determine how much you can afford are the debt to income ratio and the housing expense to income ratio. The later is calculated by dividing your estimated monthly housing payment by your gross monthly income. Your estimated monthly housing payment includes the payment of principal, interest, taxes and insurance. This number is expressed as a percentage.

Your debt to income ratio is similar to the housing expense to income ratio, except it includes all your reoccurring debt. This includes credit cards, auto loans, child support, and any other debts which have a monthly payment. Most lenders, for conventional loans, those which are not government sponsored want a debt to income ratio under 38% and a housing expense to income ratio less than 30%. However, these numbers are only guidelines. Many compensating factors, such as net worth, credit score, and the ability to make a large down payment will allow for higher ratios.

Now let’s do an example. Say you, the buyer, make \$15/hour and you work 40 hours a week. To find your gross monthly income (income before taxes) we will multiply your hourly wage by your hours per week then by weeks in a year and finally divide by months in a year.

\$15 X 40hours = \$600 per week

\$600 X 52weeks = \$31,200 per year

\$31,200 / 12months = \$2,600 per month

Your gross monthly income is \$2,600

Let’s apply the 30% rule to your housing expense to income ratio.

\$2,600 X .3 = \$780

This means, to have a hosing expense to income ratio of 30%, your maximum monthly house payment cannot exceed \$780.

Now let’s do the same for your debt to income ratio, DTI. Say you have an auto loan which you pay \$150 per month, a credit card with a minimum payment of \$50 and no other reoccurring debt. If we add that to your \$780 house payment, we get \$980.

\$980 / \$2,600 = .38 or 38%

As you can see, you would meet the guidelines for the ratios. However, if you had more debt, say child support, you would not qualify and you would probably need an extensive down payment or impeccable credit to get the loan.

Now we can find out how much you can spend on the house. Say market interest rates are at 5%, using your \$780 per month payment with a 30 year fixed rate mortgage and a financial calculator; we find your maximum loan amount to be about \$145,000. Now that you know how much of a loan you can get, you just need to figure out how much of a down payment you can make. This completely depends on your comfort level and your funds available. Most banks like an 80% loan to value ratio, and you should too. Because private mortgage is required for any loan with a LTV of over 80%, you can save a lot of money by paying more up front. Therefore, if you use an 80% LTV, you can buy an \$180,000 house. If you can’t manage to make the large \$35,000 down payment, you can always have a higher LTV and just pay mortgage insurance.

This just briefly touches on how banks determine what you can afford, but it is good to know. If you have more questions about what I presented here, feel free to leave a comment or give us a call at (800) 741-3710. I’ll have a new article for you next week and I will definitely be touching on this subject again.

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Victor Zuniga
Berkshire Hathaway Home Services California Properties - San Diego, CA

Great explanation on how a person should determine what they can afford. Iknow for some people it's going to be a reality check but better it's always better to know what you're getting into before you're in.

Sep 22, 2010 10:15 AM #1
Rainer
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Real Living GreatWest
Real Living GreatWest - Sacramento, CA

Thanks for your comment Victor. I do agree that it is much better to get people into homes they can afford, rather than into the most expensive house on the block.

Sep 22, 2010 10:29 AM #2
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Inna Ivchenko
Barcode Properties - Encino, CA
Realtor® • Green • GRI • HAFA • PSC Calabasas CA

Beautiful explanation of what to expect!

The very first step in home buying process should be checking with your local loan consultant and have all the answers: how much I can afford, how much closing costs, how much my monthly payment, what other expenses are there?( property taxes,  PMI insurance, property insurance, HOA fees if condo, etc.)

Preparation is the key to success, right?

Sep 16, 2014 11:07 AM #3
Anonymous
Shey

So if I make 16 per hour at 40 hours. 14 per hour at 20 hours part time of course. I have no debt at all. That's right. And roughly a 710 credit score. How much of a house can I afford....im looking at 2 houses now. One costs 300,000. The other cost 169,000. Thank you for your help.Mybonbons@gmail.com

Jan 10, 2019 05:10 PM #4
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Rainer
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