Guide · Mortgages & Property
Rent vs Buy (US): The Full Financial Breakdown
The conventional wisdom that buying is always better than renting does not hold in every market or at every life stage. A complete comparison requires accounting for every cost of ownership — not just the mortgage payment.
The true cost of buying: more than the mortgage payment
Homeowners pay far more than a monthly mortgage instalment. The major additional costs are property tax (1–2% of home value per year), homeowner's insurance (0.5–1%), maintenance and repairs (budget 1% per year under the 1% rule, though HVAC systems, roofs, and appliances can spike this), and HOA fees where applicable. There is also the opportunity cost of the down payment — the investment return foregone by putting cash into an illiquid asset rather than a diversified portfolio.
| Cost item | Buying | Renting |
|---|---|---|
| Mortgage/rent (P&I or base rent) | $1,686 (6.5%, 30yr, $320k loan) | $2,200 |
| Property tax (1.25%/yr) | $417 | — |
| Homeowner's insurance (0.75%/yr) | $250 | Renter's insurance ~$15 |
| Maintenance (1%/yr estimate) | $333 | — |
| HOA (if applicable) | $200 (varies) | — |
| Opportunity cost of $80k down (7%/yr) | $467 | Invested — earns $467/mo avg |
| Total effective monthly cost | ~$3,353 | ~$2,215 |
Opportunity cost is calculated as $80,000 invested at 7% annualised, divided by 12. This represents the investment return foregone by tying up cash in a down payment.
The price-to-rent ratio: a quick market health check
The price-to-rent ratio is calculated by dividing the home purchase price by the annual rent for a comparable property. A $400,000 home that would rent for $2,200 per month ($26,400 per year) has a price-to-rent ratio of 15.2.
High-cost coastal metros (New York, San Francisco, Seattle) often have price-to-rent ratios of 25–40, strongly favouring renters who invest the difference. Mid-size cities in the Midwest and South often trade below 15, where buying typically wins financially over a 7+ year time horizon. The ratio alone does not account for tax benefits, equity accumulation, or future appreciation expectations, so use it as a starting filter rather than a definitive answer.
When buying beats renting: the time horizon test
Buying has high transaction costs in both directions. Closing costs when purchasing typically run 2–5% of the purchase price. Selling costs — realtor commissions, title fees, and staging — typically consume 7–10% of the sale price. On a $400,000 home, you could spend $30,000–$50,000 in total transaction costs across a buy-sell cycle.
Home appreciation must first cover those transaction costs before you are financially ahead of renting. In most US markets, this takes 5–7 years under typical appreciation assumptions. If there is a meaningful chance you will relocate within 3–4 years, the maths generally favour renting and investing the down payment.
The IRS capital gains exclusion ($250,000 for single filers, $500,000 for married couples filing jointly) makes long-term homeownership tax-advantaged for those with significant appreciation. You must have owned and lived in the home as your primary residence for at least 2 of the 5 years before selling to qualify.
Frequently asked questions
What is the price-to-rent ratio and how do I use it?
The price-to-rent ratio is the home purchase price divided by the annual rent for a comparable property. A ratio above 20 generally favours renting — you are paying a premium to own relative to what the market values the occupancy at. A ratio below 15 generally favours buying. Between 15 and 20 is a grey zone where individual circumstances (time horizon, local market expectations, personal priorities) matter most. In high-cost metros, ratios of 30–40 are common, strongly favouring renters who invest the difference.
What hidden costs should I budget for as a homeowner?
Beyond the mortgage payment, budget for: property tax (1–2% of home value per year, or $4,000–$8,000 on a $400,000 home); homeowner's insurance (0.5–1% per year, around $2,000–$4,000); maintenance and repairs (the 1% rule suggests budgeting 1% of home value per year, though older homes often need more); HOA fees if applicable ($100–$700/month in many communities); and closing costs when you eventually sell (realtor commissions alone are typically 4–6% of the sale price). These costs do not build equity.
Is it always better to buy if I can afford it?
No. The financial outcome depends heavily on how long you stay. Transaction costs — buying (2–5%) and selling (5–8%) — mean you need significant home appreciation just to break even on a short-term purchase. Studies suggest buying typically becomes financially superior to renting after 5–7 years in most US markets, assuming moderate appreciation. If you might relocate within 3 years, renting and investing the down payment is almost always the better financial choice, though non-financial factors like stability and the ability to renovate are also valid.
How does the mortgage interest deduction work?
US homeowners can deduct mortgage interest on loans up to $750,000 (for loans originated after December 2017) if they itemise deductions on their federal tax return. However, the 2017 Tax Cuts and Jobs Act roughly doubled the standard deduction to $29,200 for married filers in 2024. Most taxpayers now take the standard deduction instead of itemising, meaning the mortgage interest deduction no longer provides a benefit. It primarily helps taxpayers with large mortgages, high state and local taxes, or significant charitable contributions who can itemise above the standard deduction threshold.