Rent vs Buy Calculator

How this rent vs buy calculator works

This is not a simple EMI vs rent subtraction. The model projects two parallel timelines: a buying timeline and a renting-plus-investing timeline.

For the buying side, the engine captures the down payment, loan amount, interest rate, tenure, one-time transaction costs such as stamp duty and registration, recurring costs such as maintenance and property tax, and an annual property appreciation assumption. On the rental side, it takes your monthly rent, the expected annual rent escalation, and the security deposit. It then compares that cash outflow to a disciplined investment of the difference, especially the down payment and any monthly surplus, into a growth portfolio. The output is a year-by-year projection of net equity if you buy, and net investable corpus if you rent and invest. You see the crossover point, if it exists, and decide with numbers instead of noise.

Why most rent vs buy comparisons are wrong

The fatal flaw in almost every rent vs buy calculator debate is comparing EMI with rent in year one and ignoring everything that follows. In many Indian metros, net rental yields are aggressively thin, pushing price-to-rent ratios into the stratosphere. In cities like Mumbai, Bengaluru, and the NCR, net yields frequently hover in the low single digits. That one fact alone shatters the illusion that rent is dead money.

When you buy, your capital is locked into a single, illiquid asset with concentrated city risk, plus frictional costs, such as stamp duty, registration, brokerage, and ongoing maintenance. When you rent and invest the down payment and monthly savings, you diversify across equities and fixed income. You retain the flexibility to relocate without being anchored to a single property. The brutal reality is that buying often wins only when you intend to stay put for a long horizon, expect steady appreciation, and can service the loan without compromising other financial goals. This calculator forces those assumptions into the open. It shows your net wealth under both paths rather than repeating retail banking slogans.

What this rent vs buy calculator actually computes

Most tools stop at basic cash flows. This rent vs buy calculator accounts for five hidden forces that can completely change the outcome: the opportunity cost of your down payment. The full interest is paid over the tenure. Transaction and recurring ownership costs. The tax shield from home loan interest and principal repayment. And the compounding return on the monthly surplus if you keep renting and invest it instead.

Deploying that surplus requires a vehicle capable of actual risk-adjusted compounding, not just generic market exposure. Explore long/short SIF investment strategies.

For a self-occupied property, interest paid on a home loan can be claimed under Section 24(b), subject to specific caps, and principal repayment can be claimed under the overall limits available under Chapter VI-A. This depends entirely on the tax regime you opt for and the prevailing rules of the Income Tax Act. The calculator doesn’t hand you a one-word answer. It gives you a time-bound wealth comparison tied to your actual life horizon. For the latest treatment of home loan interest and principal, see the Income Tax portal’s guidance here: Section 24(b) interest deduction rules.