Start with what you can afford
Use the Home Affordability calculator to translate income, debts, and down payment into a realistic purchase range before you compare to rent.
Open home affordability calculatorThe Setup
We'll compare buying a $400,000 home versus renting an equivalent property. Both scenarios run for 10 years.
| Assumption | Value |
|---|---|
| Home purchase price | $400,000 |
| Down payment (20%) | $80,000 |
| Mortgage rate (30-yr fixed) | 6.5% |
| Loan amount | $320,000 |
| Monthly P&I payment | $2,022 |
| Equivalent monthly rent | $2,200 |
| Home appreciation rate | 3% per year (national avg 2026) |
| Investment return rate | 7% (S&P 500 historical avg) |
| Annual rent increase | 3% |
The True Cost of Buying (Year 1)
The mortgage payment is $2,022/month. But as Bankrate's Hidden Costs of Homeownership study found, the average American homeowner pays $21,400 per year in costs beyond the mortgage - including taxes, insurance, utilities, and maintenance. [1] Applied to a $400,000 home:
| Buying Cost (Year 1) | Monthly | Annual |
|---|---|---|
| Mortgage (P&I) | $2,022 | $24,264 |
| Property taxes (~1.1%) | $367 | $4,400 |
| Homeowners insurance | $189 | $2,267 |
| Maintenance (1.5% of value) | $500 | $6,000 |
| Total cash outflow | $3,078 | $36,931 |
| Minus: principal paid | -$276 | -$3,312 |
| Net 'sunk' cost Year 1 | $2,802 | $33,619 |
What the buyer gains in Year 1: $3,312 in principal paydown + $12,000 in appreciation (3% of $400k) = $15,312 in net worth gain.
The True Cost of Renting (Year 1)
Renting has sunk costs too - every dollar of rent is gone. But the renter has one major financial advantage: the down payment stays invested.
| Renting Cost (Year 1) | Monthly | Annual |
|---|---|---|
| Rent | $2,200 | $26,400 |
| Renters insurance | $18 | $216 |
| Total cash outflow | $2,218 | $26,616 |
| Everything is sunk cost | $26,616 |
What the renter gains: The $80,000 down payment, invested at 7%, grows by $5,600 in Year 1. Net financial position change: -$26,616 + $5,600 = -$21,016 net cost.
Year 1 comparison
Year 1 comparison: Buying nets -$33,619 + $15,312 = -$18,307 true cost. Renting nets -$21,016 true cost. Renting is slightly cheaper in Year 1.
The 10-Year Picture
Over a decade, several forces shift the equation:
The owner's mortgage stays fixed while rents rise ~3% annually
The owner's home appreciates
The renter's down payment grows
The owner pays down more principal each year
| 10-Year Summary | Buyer | Renter |
|---|---|---|
| Total cash paid out | $382,000 | $302,000 |
| Home value (3% appreciation) | $537,600 | N/A |
| Mortgage balance remaining | $276,500 | N/A |
| Home equity | $261,100 | N/A |
| Invested down payment value | N/A | $157,400 |
| Net financial position | +$261,100 | +$157,400 |
After 10 years, the buyer is ahead by roughly $103,700 in net worth - but has paid $80,000 more in cash. The buyer's advantage comes primarily from appreciation and forced savings through principal paydown, not from the mortgage payment being 'cheaper' than rent.
When Renting Wins
The math above assumes you stay for 10 years. The break-even point - when buying becomes cheaper than renting - averages 5 years and 8 months nationally in 2026. [2]
Below that timeline, renting is almost always the better financial decision when you factor in transaction costs (agent fees, closing costs typically run 6-10% of the home value). Selling a $400,000 home could cost $24,000-$40,000 - costs that wipe out years of equity building.
Renting wins when:
- •You plan to move within 5 years
- •Local price-to-rent ratio is above 20
- •You'd have to drain your emergency fund to buy
- •Your down payment can earn 7%+ invested
Buying wins when:
- •You're staying 7+ years
- •You have a stable 20% down payment plus reserves
- •Local rents are rising faster than mortgage costs
- •You value the stability of fixed housing costs
The Variables Nobody Talks About
Three things that swing the math dramatically and are rarely discussed:
1. Local markets vary enormously
The national averages above obscure huge variation. In Atlanta or Phoenix, buying may make sense after 3-4 years. In San Francisco or New York, the break-even can stretch to 10-15 years. Always run your specific market's numbers.
2. Renters rarely invest the difference
The renter's financial advantage assumes you invest the down payment and any monthly savings. In practice, most people don't - the money disperses into lifestyle spending. If you won't invest the difference, the buyer's advantage is stronger than any model shows.
3. Buying has non-financial value
Stability, the ability to renovate, no landlord, space for kids or pets - these are real, meaningful, and worth something that doesn't show up in a spreadsheet. The right answer isn't purely financial for most people.
Run Your Own Numbers
HelpCalculate's Home Affordability calculator tells you what price range you can realistically buy in. The Mortgage Payment calculator shows your full monthly cost. And the Compound Interest calculator will show what your down payment grows to if invested instead.
Run all three before making the decision. The math won't make it for you - but it will make sure you're choosing deliberately.
Cited sources
- Bankrate Hidden Costs of Homeownership Study 2025 - bankrate.com/home-equity/hidden-costs-of-homeownership-study/
- JL Lending Team Rent vs Buy Analysis 2026 - jllendingteam.com/rent-vs-buy/
- ATTOM Data Solutions 2026 Rental Affordability Report
- US Census Bureau Housing Costs 2024 - census.gov news release (ACS 1-year estimates)
This article is general education, not financial, tax, or legal advice. Rates, rents, and returns change; confirm figures with lenders, listings, and professionals for your situation.
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