The conventional wisdom says 'rent is throwing money away.' The math tells a different story. Whether buying beats renting depends on how long you'll stay, local price-to-rent ratios, opportunity cost of your down payment, and tax implications.
The breakeven timeline matters most. Buying comes with $15,000–$30,000 in upfront transaction costs (closing costs + moving). When you sell, you'll pay another 5–8% in agent commissions and seller costs. You need enough appreciation and equity buildup to recover these costs before buying 'wins.'
In most markets, the breakeven point is 5–7 years. Buy if you'll stay at least that long. If you might move in 2–3 years, renting almost always wins financially. The rent vs buy calculator on this site models this exactly for your situation.
Opportunity cost is the hidden factor. A $70,000 down payment invested in index funds averaging 8% returns would grow to ~$102,000 in 5 years. Your house needs to appreciate enough to beat that — after accounting for all the costs of ownership.
Tax benefits have shrunk. The 2017 tax law doubled the standard deduction, so most homeowners no longer itemize. The mortgage interest deduction only helps if your total itemized deductions exceed $14,600 (single) or $29,200 (married). For many buyers, this benefit is now zero.
The non-financial case for buying: stability, the ability to customize your space, no rent increases, and eventual payoff. These matter. Just don't let them override bad math.