Rent vs Buy Calculator:
Find Your Break-Even Year

When people compare renting and buying, they often look solely at the monthly payment. They ask: "Is my mortgage payment lower than my rent?" This cash-flow comparison is a mistake. To find your true rent vs buy break even year, you must run a net worth comparison.

Buying a home requires paying massive upfront costs, including loan origination fees, title insurance, and transfer taxes. Over time, a portion of each monthly mortgage payment goes toward principal paydown (reducing your loan balance), which acts as a form of forced savings. At the same time, the home may appreciate in value. However, you only realize these gains when you sell the property, at which point you will incur substantial selling transaction commission fees (typically 5% to 6% to real estate brokers). A true break-even calculation models your total net worth under both scenarios year-by-year, charting when the cumulative wealth of the homeowner surpasses that of the renter.

You have likely heard the real estate cliché: "Renters throw their money away on rent, while buyers build equity." This simplistic view ignores the substantial unrecoverable costs of homeownership. Just as rent is unrecoverable, many costs of owning a home are permanently lost.

When you buy a home, only a small fraction of your initial monthly payments goes toward building equity. The rest is spent on unrecoverable expenses:

Additionally, property taxes represent a permanent, recurring drain on wealth. In contrast, while renting is also an unrecoverable cost, it caps your monthly financial liability. The tenant has zero exposure to depreciation, roof failures, or escalating local tax rates.

The single most overlooked factor in real estate decisions is the opportunity cost of buying a home. To buy a house, you must lock up a significant amount of capital. This includes a down payment (frequently 5% to 20% of the purchase price) and closing costs (usually 2% to 5%).

If you choose to rent instead, that capital is not lost. A disciplined renter can invest their down payment and closing costs into a diversified stock index fund (such as the S&P 500), which has historically delivered a real return of 7% to 10% per year. Furthermore, if the monthly cost of renting is cheaper than the monthly cost of buying, the renter can invest the difference every month. Over a typical 10-year timeline, this compounding investment portfolio can grow so rapidly that it surpasses the equity build-up of a home, especially in high-cost cities.

A basic price-to-rent ratio (dividing the home price by annual rent) is a helpful rule of thumb: ratios under 15 lean buying, while ratios over 20 lean renting. However, a static ratio is insufficient because it ignores the tax code and inflation. Our advanced rent vs buy calculator handles these variables dynamically:

• Marginal Tax Rates & Itemized Deductions: The tax code allows itemizing mortgage interest and property taxes, but this is only beneficial if they exceed the standard deduction ($14,600 for individuals or $29,200 for couples).
• SALT Deduction Caps: State and Local Tax deductions are capped at $10,000, limiting the tax benefits of buying in high-tax states.
• Home Price Inflation Rate: Future home appreciation drives equity gains, but maintenance costs and property taxes also inflate over time.

By accounting for all of these parameters, the calculator ensures you get an accurate, customized answer rather than a generalized rule of thumb.