Using the national median incomes and home values of today, buyers these days need an extra year and a half, for 7.2 years total, to save a 20 percent down payment on the median valued home. Despite the booming job markets of the past decade, buyers saving down payments now – mostly first-time buyers, 61 percent of whom are millennials, according to the Zillow Group Consumer Housing Trends Report 2018 – need even more time to accomplish what previous generations did. First-time buyers say that 46 percent of their down payments come from savings, compared with 35 percent for repeat buyers, the report found.