How much house? 3× or 5× your income
EMI rules tell you what you can afford to pay each month. They do not tell you whether the flat is sensibly priced for what you earn. For that, there is a much simpler test: multiply your yearly income.
You will see two versions. One says the flat should cost no more than 3 times your annual income. The other says 5 times. On a ₹12 lakh salary, that is a ₹36 lakh flat or a ₹60 lakh one: ₹24 lakh apart for the same person.
What each test allows on ₹1 lakh a month
One salary of ₹1,00,000 a month (₹12 lakh a year). Home loan at 7.5% for 20 years.
The catch in the 5× rule
The "5 times" figure comes from a rule that also asks you to pay 40% upfront. Those two numbers only work together. Take one without the other and the maths falls apart.
| Price test | Paid upfront | Loan | EMI | Share of ₹1L salary |
|---|---|---|---|---|
| 3× income (₹36L) | 20% | ₹28.8L | ₹23,201 | 23% |
| 5× income (₹60L) | 40% as the rule says | ₹36.0L | ₹29,001 | 29% |
| 5× income (₹60L) | 20% as most people do | ₹48.0L | ₹38,668 | 39% |
Look at the last row. Someone who hears "5 times your annual income" and pays the usual 20% upfront ends up spending 39% of their salary on the home loan alone. That breaks the 30% housing limit written into the very same rule. It also uses up almost the entire 40% budget meant to cover every loan they have.
The 5× rule is not wrong, but it has a condition. It only works if you pay 40% of the price in cash.
Why use a price test at all?
Because the EMI test can move. Stretch the loan to 30 years and it allows a much bigger flat. Interest rates change it too.
The income multiple does not move. It is tied to what you earn, not to how the loan is arranged. Used together, the two tests catch different mistakes. The EMI limit catches a monthly payment you cannot keep up. The price test catches a flat that is too expensive for your salary, however the loan is structured.
What to do with this
Aim for 3×. Treat 5× as the hard ceiling. The closer you stay to 3×, the less the other rules matter.
If you use the 5× figure, use the 40% upfront with it. Otherwise you are only following half a rule.
In expensive cities, the answer is often to rent for now. The author of the 3× version says the same: if the maths does not work, rent until your income grows, or buy somewhere cheaper.
The matching monthly limits are in the 20/30/40 rule, and the costs the price tag leaves out are in what the sticker price hides.