Some industry experts are claiming that the housing market may be headed for a slowdown as we proceed through 2017, based on rising home prices and a potential jump in mortgage interest rates. One of the data points they use is the Housing Affordability Index, as reported by the National Association of Realtors (NAR).
Here is how NAR defines the index:
“The Housing Affordability Index measures whether or not a typical family earns enough income to qualify for a mortgage loan on a typical home at the national level based on the most recent price and income data.”
Basically, a value of 100 means a family earning the median income earns enough to qualify for a mortgage on a median-priced home, based on the price and mortgage interest rates at the time. Anything above 100 means the family has more than enough to qualify.
The higher the index, the easier it is to afford a home.