November 14, 2022
For most households, buying a home means getting a mortgage, which means lenders play a big role in declaring how much house you can “afford”.
Many people take that calculation as a guide in choosing which house they want to buy, but after you’ve signed the papers and moved in, the lender might not be much help in working out the details of your family budget or making ends meet.
Let’s take a look behind the curtain. What is it that lenders look at when determining how large of a mortgage payment you can feasibly make?
The 28-36 Rule
Lenders look closely at income and debt when qualifying you for a certain mortgage amount. One of the rules of thumb at play is that housing expenses shouldn’t run more than 28% of your total gross income.¹ You also may hear this referred to as the “housing ratio” or the “front-end ratio”. The 28% rule is a good guideline – even for renters – and has been a common way to budget for household expenses over many generations. Using this rule of thumb, if your monthly income is $4,000, the average person would probably be able to afford up to $1,120 for a mortgage payment.
Lenders also check your total debt, which they call debt-to-income (DTI). Ideally, this should be below 36% of your income. You can calculate this on your own by dividing your monthly debt payments by your monthly income. For example, if your car loans, credit cards, and other debt payments add up to $2,000 per month and your gross income is $4,000 per month, it’s unlikely that you’ll qualify for a loan. Most likely you would need to get your monthly debt payments down to $1,440 (36% of $4,000) or under, or find a way to make more money to try to qualify.
Buying less home than you can afford
While the 28% and 36% rules are there to help provide safeguards for lenders – and for you, by extension – buying a home at the top end of your budget can still be risky business. If you purchase a home with a payment equal to the maximum amount your lender has determined, you may not be leaving much room for error, such as an unexpected job loss or other financial emergency. If something expensive breaks – like your furnace or the central air unit – that one event could be enough to bring down the whole house of cards. Consider buying a home with a mortgage payment below your maximum budget and think about upsizing later or if your income grows.
A home as an investment?
A lot of people will always think of their home as an investment in an asset – and in many cases it is – but it’s also an investment in your family’s comfort, safety, and well-being. In reality, homes usually don’t appreciate much more than the rate of inflation and – as the past decade has shown – they can even go down in value. Your home, as a financial tool, isn’t likely to make you rich. In fact, it may do the opposite, if your mortgage payment takes up so great a percentage of your monthly budget that there’s nothing left over to invest, pay down debt, save for a rainy day, or enjoy.
Homes are one of those areas where many discover that less can be more. Whether it’s your first home or you’re trading in the old house for a new one, you might be better served by looking at how big of a mortgage payment you can afford within your current budget, rather than setting your sights on the house your lender says you can afford.
¹ “How Much House Can I Afford?” David McMillin, Bankrate, https://www.bankrate.com/real-estate/new-house-calculator/