Rent vs. Buy: How to Actually Run the Numbers
Buying a home feels like the obvious financial move — but the math is more nuanced than most people realize. Here is how to compare the true cost of renting vs. buying.
The Myth of "Throwing Money Away"
The most common argument for buying over renting is that rent is "throwing money away." This is misleading. When you pay rent, you get a place to live. When you own a home, a significant portion of your early mortgage payments also "disappear" — into interest, property taxes, insurance, and maintenance — rather than building equity.
The real comparison is not rent vs. mortgage payment. It is the total cost of renting vs. the total cost of owning. The difference is often much smaller than people expect, and in high-cost markets, renting frequently wins for the first several years.
The True Cost of Buying
Your mortgage payment is just the beginning. The full cost of homeownership includes:
| Cost | Typical amount |
|---|---|
| Mortgage (principal + interest) | Varies by loan |
| Property taxes | 0.5%–2.5% of home value per year |
| Homeowners insurance | ~0.5%–1% of home value per year |
| Maintenance and repairs | 1%–2% of home value per year |
| HOA fees (if applicable) | $200–$800/month |
| Closing costs (one-time) | 2%–5% of purchase price |
| Selling costs (when you sell) | 6%–8% of sale price |
On a $400,000 home, property taxes, insurance, and maintenance alone can add $12,000–$20,000 per year on top of your mortgage payment. These are costs renters do not pay directly.
A Real Comparison: $400k Home vs. Renting
Suppose you are deciding between buying a $400,000 home or renting an equivalent place for $2,000/month. You have $80,000 saved (20% down).
Monthly cost to own (Year 1):
Property tax (1.2%): $400
Insurance: $150
Maintenance (1%/yr): $333
Total: ~$3,012/month
Monthly cost to rent:
Renter's insurance: $20
Total: ~$2,020/month
The homeowner pays roughly $1,000/month more. Some of that goes toward equity — but in Year 1 of a 30-year mortgage, most of the mortgage payment is interest, not equity. Of that $2,129 mortgage payment, roughly $1,863 is interest and only $266 is principal.
The Break-Even Point
Buying eventually wins if you stay long enough — home appreciation, fixed mortgage payments (while rent rises), and equity accumulation all favor the buyer over time. The question is how long "long enough" actually is.
For most markets at today's rates, the break-even point is 5 to 7 years. Before that, the upfront costs (closing costs, transaction fees if you sell) and the interest-heavy early mortgage payments mean renting is often cheaper in total.
Factors that shorten the break-even period:
- Low property taxes (under 1%)
- Rapidly appreciating market
- Low mortgage rates
- Rent increasing faster than inflation
Factors that lengthen it:
- High property taxes or HOA fees
- Stagnant or falling home prices
- High mortgage rates
- Investing the down payment alternative earning strong returns
The Price-to-Rent Ratio
A quick way to gauge a market: divide the home price by the annual rent for a comparable property.
| Ratio | Interpretation |
|---|---|
| Below 15 | Buying is generally more favorable |
| 15–20 | Depends on your situation and time horizon |
| Above 20 | Renting is generally more favorable |
Using our example: $400,000 ÷ ($2,000 × 12) = 16.7 — right in the gray zone where personal factors matter most.
Non-Financial Factors
Numbers are only part of the decision. Buying makes sense when you have stability — a job you expect to keep, a city you want to stay in, a life stage where putting down roots matters. Renting preserves flexibility: to chase a job opportunity, to move without transaction friction, to not be responsible for a broken furnace at midnight.
Neither is universally better. The financially optimal choice depends on your local market, how long you stay, what you do with the down payment alternative, and what happens to home values. Run the actual numbers for your situation rather than assuming one is obviously smarter.
Key points
- Mortgage payment ≠ cost of ownership. Add property taxes, insurance, maintenance, and HOA to get the real number.
- In most markets, buying breaks even vs. renting at 5–7 years. If you might move sooner, renting usually wins financially.
- The price-to-rent ratio above 20 suggests renting is favorable; below 15 suggests buying.
- Renting and investing the down payment is a legitimate alternative — not just "throwing money away."
Frequently Asked Questions
What is the price-to-rent ratio?
Divide the home's purchase price by the annual rent for an equivalent property. A ratio below 15 generally favors buying; above 20 generally favors renting. Between 15 and 20, it depends on your personal situation and how long you plan to stay.
How long do I need to stay for buying to make sense?
Most analyses put the break-even point at 5 to 7 years, accounting for closing costs, transaction fees, and the front-loaded interest in a mortgage. If you might move within 3 years, renting almost always wins financially.
Is the down payment "lost" money when you rent?
Not exactly — if you rent and invest the down payment instead, it earns returns. The question is whether your home appreciation outpaces what that money could earn in the market. Historically, stock market returns have often matched or exceeded home price appreciation in many markets.
What are typical closing costs?
Closing costs typically run 2–5% of the purchase price, paid upfront. On a $400,000 home that is $8,000–$20,000. These costs are a major reason why buying and selling quickly rarely makes financial sense.