₹50 lakh at 9%. Stretching the tenure from 20 years to 30 does what to the total interest?

Raises it from about ₹58 lakh to about ₹95 lakh

Leaves it unchanged, since the rate has not changed

Lowers it, because each payment is smaller

Your friend says the 30-year option is 'the cheaper loan' because the monthly payment is lower. What is the honest correction?

It is the cheaper MONTH and the costlier LOAN — the tenure buys breathing room, at a price

There is no correction — a smaller payment is a smaller loan

A longer tenure is always the wrong choice

Lesson 1 of 3 · 6 min

What an EMI is made of

The EMI stays fixed while its insides shift, and the tenure dial quietly decides whether the interest bill comes to about ₹58 lakh or about ₹95 lakh.

An EMI is one fixed monthly amount, but its insides shift every month. Each payment first covers that month's interest on whatever is still owed; only the remainder chips away at the principal.

Early on, the outstanding amount is huge, so interest eats most of the EMI — on a 20-year loan, roughly 80% of the first year's payments is interest. That is why the balance barely moves in the early years.

Work it out yourself

Set a ₹50 lakh loan at 9% for 20 years and open the amortisation schedule. Find the month where the principal portion finally overtakes the interest portion inside the EMI.

EMI Calculator with Amortisation Schedule

The actual document

The same ₹44,986, three times in twenty years

Kaveri Bank · Home Loan

Repayment schedule · extract

Loan amount: ₹50,00,000
Interest rate: 9% a year
Tenure: 240 months
EMI: ₹44,986

Instalment 1 — the first month

Interest for the month₹37,500
Principal repaid₹7,486
EMI paid₹44,986

Instalment 121 — ten years in

Interest for the month₹26,635
Principal repaid₹18,351
EMI paid₹44,986

Instalment 240 — the last one

Interest for the month₹335
Principal repaid₹44,651
EMI paid₹44,986

A fictional schedule. Your lender must give you the real one — ask for the full amortisation table, not just the EMI.

Tap a numbered marker to see what that line means.

1
Interest for the month. 83% of the payment. One month’s interest on the full ₹50 lakh still outstanding — nothing has been repaid yet, so there is nothing to reduce it.
2
Principal repaid. What the first ₹44,986 actually buys you: ₹7,486 off the loan. This is why the balance appears not to move for years, and why people believe the bank is cheating them.
3
Principal repaid. Halfway through the term by time, and only about ₹14.5 lakh of the ₹50 lakh is repaid. Time and progress are not the same thing on a loan.
4
Principal repaid. The mirror image of month one. It is also why prepaying early is worth so much more than prepaying late — a rupee paid now removes twenty years of interest, a rupee paid here removes one month of it.

The same ₹50 lakh at 9% — two tenures

Standard EMI arithmetic at a constant 9% — real floating rates move, but the shape of the trade-off does not.
Figure	20 years	30 years
Monthly EMI	about ₹44,986	about ₹40,231
Total interest over the loan	about ₹58 lakh	about ₹95 lakh
What the ₹4,755-lighter EMI costs in the end	—	about ₹37 lakh extra, and ten more years of payments

Your turn

From the table: roughly how many lakh rupees MORE interest does the 30-year tenure cost than the 20-year one?

Myth

“A longer tenure makes the loan cheaper.”

False

It makes the MONTH cheaper and the LOAN costlier. The same ₹50 lakh at 9% costs about ₹58 lakh in interest over 20 years and about ₹95 lakh over 30. Tenure is a dial between monthly breathing room and total cost — a longer tenure is sometimes the only affordable way in, but it is never the cheap way.

The longer one has a smaller EMI. Isn't smaller cheaper?

KabirTara

Kabirasking
The thirty-year option has a smaller monthly payment than the twenty-year one. Smaller is cheaper. Why does everyone keep telling me it isn't?
Taraexplaining
Because you are comparing months and the loan is counting years. The month got lighter. The number of months got much larger, and interest is charged on every one of them.
Kabirasking
So what am I actually getting for the smaller EMI?
Taraexplaining
Breathing room. That is a real thing to want — a payment you can survive beats one that breaks you in year three. You are simply paying a great deal for it.
Kabirasking
How much is a great deal?
Taraexplaining
Read the two totals in the table above rather than the two monthly figures. Same loan, same rate, one dial moved — and the interest row is the price tag on the room you bought.

Match them up

Four words the sanction letter uses

EMI

Amortisation

Tenure

Principal

Drag each meaning up or down until it sits beside the term it belongs to.

Check yourself

1 / 3

Kabir asks

In year one of a 20-year home loan, roughly how much of each EMI is interest?

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