Record-low mortgage rates boost buying power, but home prices cancel that out

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Record-low mortgage rates have spurred homebuying in recent months. For those who qualify, rates below 3 percent bring buying power — and rock-bottom rates help ease the affordability squeeze that has gripped the housing market.

This welcome trend comes with a wrinkle, however: Home prices have surged so much that the savings from historically low rates are a wash. The National Association of Realtors says the median home price jumped 11.4 percent from August 2019 to August 2020.

In other words, home prices are rising faster than incomes. If mortgage rates had stayed the same, buyers would have to settle for less house. Instead, rates have plunged, which lets buyers keep up with rising prices.

But there’s yet another wrinkle: Higher home prices mean a larger down payment, a hurdle for many would-be first-time buyers.

“Even as prices have been rising, the monthly payment has been falling,” says Gay Cororaton, NAR’s director of housing and commercial research. “The problem is you need more down payment.”

How the mortgage numbers break down

Here’s one way to see the offsetting effects of soaring home prices and plunging mortgage rates. Say you decided not to buy a $300,000 home a year ago, when the 30-year mortgage rate was at about 3.75 percent. Your down payment at 20 percent would have been $60,000, and your monthly payment would have been $1,111.

Today, the price of the same home has jumped to $335,000, but you can land a 30-year loan at 3 percent. As a result, your monthly payment rises only slightly, to $1,130. However, you’ll have to come up with an extra $7,000 to make a 20 percent down payment.


A year ago Today
Home price $300,000 $335,000
Down payment $60,000 $67,000
Mortgage rate 3.75% 3%
Loan amount $240,000 $268,000
Mortgage payment $1,111 $1,130


How much do mortgage rates drive home prices?

Home prices have many moving parts. They’re driven by a combination of factors, including the availability of homes for sale, their location, the pace of construction, wages and consumer confidence.

In other words, says Susan Wachter, a housing economist at the University of Pennsylvania’s Wharton School, “It’s complicated.”

Over the past two decades, Wachter says, falling mortgage rates have accounted for about 20 percent of the increases in home values. She’s unsure how much this round of rate cuts has pumped home prices, but she guesses it’s more than usual.

“We know that lower mortgage rates increase demand,” Wachter says. “I would say a large percentage of the rise in home prices is due to a decline in mortgage rates. It’s certainly not due to rising incomes.”

Robert Dietz, chief economist at the National Association of Home Builders, agrees. “I rank low mortgage interest rates as the top factor for the strength in the homebuying market,” he says.

But, Dietz adds, other factors are at play, too. Large numbers of millennials have reached the prime age for buying, and new construction has been muted for years.

Falling rates deliver more spending power

There’s no question that the drop in mortgage rates has boosted buying power. For consumers who base their bid on the size of the monthly payment, affordability has increased dramatically.

A year ago, when rates were at 3.75 percent, a $2,000 monthly payment would have translated to a loan amount of $539,822. Today, with rates at 3 percent, a $2,000 payment equals a mortgage of $592,973. That’s a 10 percent increase.

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Written by
Jeff Ostrowski
Senior mortgage reporter
Jeff Ostrowski covers mortgages and the housing market. Before joining Bankrate in 2020, he wrote about real estate and the economy for the Palm Beach Post and the South Florida Business Journal.
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