Rent vs Buy: A 10-Year Tug-of-War

A Rs. 1 crore house in Bengaluru. 20% down (Rs. 20L), 80% loan at 9% (Rs. 80L). EMI ~Rs. 72,000 over 20 years. Alternatively, rent the same house for Rs. 35,000/month, invest the saved down-payment + EMI differential (~Rs. 37,000/month) in equity at 11%. Over 10 years, renting-and-investing typically leaves you 15-25% richer in corpus terms than buying. After accounting for house appreciation, tax benefits, and transaction costs. Homeownership is often a lifestyle decision rather than the financial one; knowing which lever you are optimising changes the choice.

By the end, you will know the 5-variable NPV calculation comparing rent vs buy, the rent-to-price ratio that flips the answer, and the transaction-cost load that erodes buy advantage.

The five variables

PROPERTY PRICE + APPRECIATION RATE (Indian metros 3-5% annually over 10 years, historical).
DOWN PAYMENT + EMI (20% + 20-year loan typical).
RENT AMOUNT + RENT-INFLATION RATE (rental growth 5-7% annually, below property appreciation).
ALTERNATIVE INVESTMENT RETURN (equity 11%, hybrid 9%, conservative 7%).
TAX BENEFITS (home loan deductions for buyer; HRA exemption for renter).

The NPV calculation: sum up 10-year cash flows for each scenario. Buying scenario: down payment (outflow) + 10 years of EMI (outflow) - tax benefits - house value at end of 10 years (treat as inflow, though not liquid). Renting scenario: 10 years of rent (outflow) + invested down payment + invested EMI differential (inflow = compound return). Compare final net positions.

Rent-to-price ratio

Annual rent / property price. Indian metros: typically 2-3% (Rs. 24-36k/month on a Rs. 1 crore property). Below 3% = RENTING usually wins. Above 5% = BUYING usually wins. The 3-5% band is where both camps can cite the right answer (depends on appreciation, tenure, tax position). Tier-1 metros (Mumbai, Delhi, Bengaluru) generally sit at 2.5-3% = marginal rent-favoured. Tier-2 cities often 3.5-5% = more buyer-favoured.

Why rent-to-price matters: a low ratio means renting is cheap relative to buying. The "opportunity cost" of not buying is low, because the same amount of money buys less house-use if you owned. A high ratio means rent is expensive relative to buying. Each month of renting is "lost" relative to building equity.

Transaction costs. The under-appreciated drag

Buying: stamp duty (5-7% depending on state), registration (1%), brokerage (1-2%), legal + documentation (~Rs. 25-50k) = ~7-8% of property price upfront. Selling: brokerage (1-2%) + capital gains tax (if no 54 exemption) + registration transfer = ~2-4%. Round-trip transaction costs: ~10% of property price. This eats 3-4 years of typical appreciation. Implication: buy only if staying 7+ years; for shorter horizons, rent structurally wins.

Transaction costs are often psychologically hidden. "I paid the stamp duty, that's done". But the Rs. 7 lakh stamp duty on a Rs. 1 crore house needs to be recovered through appreciation before you break even. At 4% annual appreciation, it takes 18 months just to recover stamp duty. Add selling brokerage + potential capital-gains tax, and the break-even moves to 5+ years.

Transaction costs matter

Buying round-trip costs: ~10% of price (stamp + registration + brokerage + legal). Eats 3-4 years of typical appreciation. Buy only if staying 7+ years; for shorter horizons, rent structurally wins.

Transaction costs matter

Buying: 7-8% upfront costs + 2-3% at sale = ~10% round-trip. Eats 3-4 years of appreciation. Buy only if staying 7+ years.

HRA exemption for renters in old regime

Salaried old-regime tenant in metro: HRA exemption up to 50% of basic + DA. A Rs. 35k monthly rent on a Rs. 10L basic salary = ~Rs. 2-3 lakh tax-free via HRA. This is uniquely available to renters, not owners.

Appreciation assumptions are not guaranteed

Indian urban property appreciated 3-5% annually over 2015-2024 (nominal). Real (inflation-adjusted) appreciation was close to zero for many metros. Do not assume 8%+ appreciation in NPV models. Stress-test with 3%.

Key Takeaways

Rent-to-price ratio < 3%: renting usually wins financially.
Transaction costs = ~10% round-trip; eats 3-4 years of appreciation.
Buy if staying 7+ years and in high-appreciation pocket.
Homeownership has lifestyle value beyond NPV.
HRA + 80C on principal + 24(b) on interest = ~3-4% effective rate reduction for old-regime buyers.