To truly understand the power and the limitations of Trulia's Rent vs. Buy Calculator , it helps to break down how the model works, the hidden variables it accounts for, and why the math sometimes defies common wisdom. 🛠️ The Mechanics: How Trulia Computes the Math

: This is the tool's secret sauce. It assumes that if you didn't dump your cash into a down payment and closing costs, you would have invested it elsewhere. Trulia's default assumes a baseline return on that capital, adjusting the final "savings" accordingly. Rent vs Buy Calculator - Trulia

Rather than pushing a one-size-fits-all agenda, it pits the unrecoverable costs of renting against the unrecoverable costs of homeownership across a 10-year span.

: It counts the massive "sunk costs" of buying, such as the initial down payment, closing costs, and the 5% to 6% agent commissions you pay when you eventually sell.