According to the report by the state-run Korea Development Institute, 60.5 percent of people paid monthly rent in 2016, while 39.5 percent lived in jeonse homes.
In 2010, jeonse was the most common housing rental type in the country, at 50.3 percent.
Jeonse is a home rental arrangement unique to South Korea, where tenants pay a large sum of money as a deposit instead of paying monthly fees. Landlords profit from the large deposits before returning the entire amount when the lease expires.
The KDI report said low interest rates have encouraged landlords to switch to monthly rent.
South Korea's key rate has remained at a record low of 1.25 percent for more than a year. (Yonhap)