The 20x Rule: A Quick Check for Renting vs Buying a Home

Are you better off renting or buying a house? The 20x rule gives a quick answer. Divide the property's price by its annual rent. The result is the number of years of rent it would take to match the purchase price. A number near 20 means the costs are roughly even. Above 20 suggests the property is expensive relative to its rental value. Renting may be the smarter choice. Below 20 points the other way. Buying could offer better value.

Take a flat priced at ₹80 lakh drawing ₹3 lakh in annual rent. That ratio lands above 26. The rule says the owner is paying a premium for ownership. Renting a similar unit would cost about ₹25,000 a month. The math favors the renter. Flip to a ₹50 lakh property with the same ₹3 lakh annual rent. The ratio drops to about 16. Buying looks more attractive here because the purchase price is low relative to the income it could generate.

The 20x rule is a useful filter, not a final verdict. It ignores leverage, mortgage interest, property taxes, maintenance, and capital appreciation. Someone planning to stay in the same city for a decade may still prefer to buy even if the ratio is above 20. A trader looking at real estate as an investment cares more about yield versus the risk-free rate. If a property rents for 5% of its price, that is a 5% gross yield. After costs, it may trail a 7% return on equities or bonds. The 20x rule starts the conversation. It does not end it.

Use it alongside your own holding period, financing costs, and local market outlook. A ratio of 25 in a fast-appreciating neighborhood may still pencil out. A ratio of 15 in a stagnant market may not. The rule brings numbers into a debate that often runs on emotion. That alone makes it worth checking.