The Bank of Mom and Dad is playing a growing role as lender of last resort for a housing recovery struggling to provide more traction for the U.S. economy.

Last year, 27 percent of those purchasing a home for the first time received a cash gift from relatives or friends to come up with a down payment, according to data from the National Association of Realtors. That’s up from 24 percent in 2012 and matches the highest share since the group began keeping records in 2009.