Buy vs Rent Calculator (True Cost)

Compare the true financial impact of buying a home versus renting. We factor in property taxes, maintenance, stamp duty, and opportunity cost to give you a mathematically accurate comparison.

Property Details

₹1,00,00,000
20%
8.5%
20 Yrs
5%

Unrecoverable Buyer Costs

0.5%
1%
6%

Rent & Investment Details

₹25,000
5%
12%

Renting remains better for all 20 years

Due to the high sunk costs of buying, renting and investing the difference yields a higher net worth.

Financial Comparison (After 20 Years)

Final Net Worth (Buying)

₹2,60,02,318

Initial Monthly EMI: ₹69,426

Final Net Worth (Renting)

₹8,08,48,634

Initial SIP: ₹56,926

Renting is more profitable by ₹5,48,46,317

The True "Throwing Money Away" Comparison

A breakdown of the unrecoverable costs (sunk costs) over 20 years.

Sunk Cost CategoryBuying Sunk CostsRenting Sunk Costs
Rent Paid-₹99,19,786
Loan Interest Paid₹86,62,206-
Property Taxes₹17,35,963-
Maintenance & Repairs₹34,71,925-
Closing Costs (Buy + Sell)₹11,30,660-
Total Sunk Costs₹1,50,00,753₹99,19,786

The Buy vs. Rent Dilemma (Math over Myth)

The phrase "renting is throwing money away" is one of the most pervasive myths in personal finance. In reality, both buying and renting involve throwing money away on unrecoverable costs.

For renters, the unrecoverable cost is rent. For buyers, the unrecoverable costs are mortgage interest, property taxes, maintenance, society fees, and closing costs (stamp duty, registration, brokerage). Our true-cost calculator factors in all these elements.

The 5% Rule of Thumb

A great mental model for the Buy vs Rent decision is the 5% Rule. This rule states that the unrecoverable costs of homeownership generally average out to 5% of the property's value every year.

  • 1% for Property Taxes
  • 1% for Maintenance and Repairs
  • 3% for the Cost of Capital (Mortgage Interest + Opportunity Cost of Down Payment)

If your annual rent is strictly less than 5% of the home's value, renting is usually the superior financial decision. For a ₹₹1,00,00,000 home, 5% is ₹5,00,000/year or roughly ₹41,667/month. If you can rent a similar home for less than this amount, the math favors renting.

The Opportunity Cost of Buying

When you buy a house, you tie up a massive amount of cash in a down payment and closing costs. If you had rented instead, you could have invested that exact same initial capital in the stock market (e.g., via a NIFTY 50 index fund) and earned a historical average return of 10-12% annually.

Furthermore, if your monthly EMI, taxes, and maintenance combined are higher than your monthly rent, a disciplined renter can invest that difference via an Equity SIP every single month. Over 20 or 30 years, this invested difference compounds exponentially.

When Buying Makes Sense

Buying a home generally becomes the superior financial choice if you plan to stay in the home for a long time (typically passing the "break-even" year calculated above). The longer you stay, the more the loan amortization shifts in your favor (you pay more principal and less interest), and the more time your home's value has to appreciate to offset the initial heavy sunk costs.

Frequently Asked Questions

Is it always better to buy a house than to rent?

No. The decision depends heavily on how long you plan to stay in the home, the local housing market, and interest rates. Buying involves significant sunk costs (closing costs, maintenance, property taxes, interest) that can outweigh the equity gained if you move within 5-7 years.

What is the opportunity cost of a down payment?

When you put 20% down on a house, that money is tied up in the home. If you had rented instead and invested that same 20% down payment into a NIFTY 50 index fund, it would likely compound at 10-12% annually. This lost investment growth is the opportunity cost of buying.

How do property taxes and maintenance affect the Buy vs Rent calculation?

Property taxes and maintenance are ongoing, unrecoverable costs of homeownership. They typically average 1-2% of the home's value annually. In a Buy vs Rent calculation, these costs must be subtracted from the total equity gained to find your true net worth.

What is the 5% Rule in real estate?

The 5% Rule is a quick rule of thumb for estimating the unrecoverable costs of homeownership. It estimates that property tax (1%), maintenance (1%), and cost of capital/interest (3%) will cost about 5% of the home's value each year. If your annual rent is less than 5% of the home's value, renting may be better financially.