(NewsNation) — It won’t be as bad as 2007, but hundreds of thousands of homeowners will face significantly higher mortgage payments soon, due to their adjustable-rate mortgages.

About 1.7 million homes were bought in 2019 using ARMs. Many of them were “5/1” loans: five years of a lower fixed interest rate, then a conversion to a market-based rate that’s adjusted once or twice a year.

That means a mortgage based on a 2019 interest rate of 3.5% or even lower may balloon to around 6.5%. And that is a significantly higher monthly payment that many people won’t be able to afford.

According to a poll for Bloomberg conducted by CivicScience Inc., around 10% of ARM holders said that they could fail to meet their obligations or postpone their mortgage payments when their ARM adjusts to market rates.

While the clock is ticking on 5-year-old ARMs, home buyers looking for any kind of bargain are still acquiring new ARMs. With the 30-year fixed mortgage rate at around 7% this week, an ARM in the mid-6% can be the difference between affording and not affording a house right now.

And, since the Great Recession, regulators put caps on how much lenders may raise ARM rates.