KEY POINTS
  • With the average rate on the 30-year fixed now close to 4 percent, 4.9 million borrowers could likely qualify for a refinance and reduce their interest rate by at least three-quarters of a percentage point, according to Black Knight, a mortgage data and analytics company.
  • That is a nearly 50 percent increase in the size of that population in a single week.
  • On a $300,000 mortgage, a refinance from 4.81 percent to 4.06 percent would save the homeowner about $133 per month.
A homeowner trims her yard in the Kenwood Park neighborhood of Bethesda, Md.

A sharp drop in interest rates last week suddenly made millions more borrowers eligible to refinance their mortgages.

With the average rate on the 30-year fixed now close to 4 percent, 4.9 million borrowers could likely qualify for a refinance that could reduce their interest rates by at least three-quarters of a percentage point, according to Black Knight, a mortgage data and analytics company. That's a nearly 50 percent increase in the size of that population in a single week.