Rents are the go-to indicators for understanding the cost of leased housing in the U.S. But the actual cost of a unit - be it a single-family home, apartment, or any unit in between - is a complicated nexus of mandatory fees and expenses from initial application to deposits to utilities. To understand the hurdles to affordable housing, notably for low-income households including Section 8 voucher holders, policymakers and agencies need robust data beyond rents.