"Despite the small gain in pending sales from the prior month, the housing market is clearly undergoing a transition," said NAR chief economist Lawrence Yun. "Contract signings are down sizably from a year ago because of much higher mortgage rates."

According to NAR, at the median single-family home price and with a 10% down payment, the monthly mortgage payment has increased by about $800 since the beginning of the year as mortgage rates have climbed by 2.5 percentage points since January.

"Trying to balance the housing market by choking off demand via higher mortgage rates is damaging to consumers and the economy," Yun added. "The better way to balance the market is through increased supply, which also helps the broader economy."

While the housing market remains unbalanced nationwide with demand far outpacing supply, Yun noted variations in home prices and affordability contributed to the regional differences in pending sales activity in May.

"The largest decline in contract activity was observed in the West region, where homes are the most expensive," he said. "This further indicates the growing need to increase supply to tame home price growth and improve the chances of ownership for potential home buyers."

May Pending Home Sales Regional Breakdown

The Northeast PHSI jumped 15.4% compared to last month to 86.7, down 11.9% from May 2021. The Midwest index retreated 1.7% to 98.6 in May, a decline of 8.8% from a year ago.

The South PHSI increased 0.2% to 119.0 in May, a 13.8% drop from the previous year. The West index contracted 5.0% in May to 81.6, down 19.8% from May 2021.