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Guide

Overdrafts & Credit Lines

An overdraft charges interest only on what you draw and only for the days you draw it, which makes it the right instrument for irregular, short-term needs and the wrong one for a fixed purchase.

Interest charged on
Amount drawn × days used

Not on the sanctioned limit — but renewal and non-utilisation fees may apply.

as of 2026-08-17· Bank tariff schedulesreported

Its danger is the mirror image of its advantage: with no fixed repayment schedule, an overdraft can sit drawn for years.

By Nishit Kumar, Founder & Editor
Updated 17 August 2026

What to know

The cheapest overdrafts are secured — against a fixed deposit, against securities, or as a home loan overdraft variant. An unsecured overdraft or credit line is priced like a personal loan and carries the additional risk that, without an amortisation schedule, the balance never falls.

Set your own repayment discipline, because the product will not impose one. Treat the drawn balance as a loan with a self-imposed twelve-month schedule. Without that, an overdraft becomes permanent debt at a rate you would never have accepted as a term loan.

Your numbers

₹50 L
₹10,000₹50,00,000₹20 Cr
18.5%36
120 years30
Monthly EMI
₹43,391
  • Principal48%
  • Interest52%
Principal
₹50,00,000
Total interest
₹54,13,879
Total payable
₹1,04,13,879
Interest as % of principal
108.28%
Growth over time
₹0₹27.3 L₹54.7 L₹82 L₹1.09 CrYr 1Yr 4Yr 7Yr 10Yr 13Yr 16Yr 19Yr 20
ValueAmount you put in

What this means.Over 20 years you repay more in interest than you borrowed. Cutting the tenure or prepaying early changes this sharply.

View the full breakdown (20 rows) →
YearPrincipal paidInterest paidBalance
1₹99,511₹4,21,182₹49,00,489
2₹1,08,307₹4,12,387₹47,92,181
3₹1,17,881₹4,02,813₹46,74,300
4₹1,28,300₹3,92,394₹45,46,000
5₹1,39,641₹3,81,053₹44,06,359
6₹1,51,984₹3,68,710₹42,54,375
7₹1,65,418₹3,55,276₹40,88,957
8₹1,80,039₹3,40,655₹39,08,918
9₹1,95,953₹3,24,741₹37,12,965
10₹2,13,274₹3,07,420₹34,99,691
11₹2,32,125₹2,88,569₹32,67,566
12₹2,52,643₹2,68,051₹30,14,923
13₹2,74,974₹2,45,720₹27,39,949
14₹2,99,279₹2,21,415₹24,40,670
15₹3,25,733₹1,94,961₹21,14,937
16₹3,54,525₹1,66,169₹17,60,412
17₹3,85,862₹1,34,832₹13,74,550
18₹4,19,968₹1,00,726₹9,54,582
19₹4,57,090₹63,604₹4,97,492
20₹4,97,492₹23,202₹0

At ₹50,00,000 over 20 years, Bank of Baroda holds the lowest advertised floor on our board.

Only these figures travel with you.

Questions

How is overdraft interest calculated?

On the amount actually drawn, for the number of days it is outstanding, typically applied monthly. Some lenders also levy a renewal fee or a non-utilisation charge on the undrawn limit — check the tariff schedule.

Is an overdraft better than a personal loan?

For irregular or uncertain-timing needs, yes — you pay only for what you use. For a known one-time amount, a term loan is usually cheaper and enforces repayment through its schedule.

What is a home loan overdraft?

A variant where surplus funds parked in a linked account reduce the interest-bearing balance while remaining withdrawable. The interest saved is not taxed, unlike interest earned on a deposit, which makes it efficient for anyone holding a cash buffer.

Related reading

Worth knowing.Rates, fees and terms change frequently and vary by applicant. Everything here is general information, not personalised advice. Confirm the current terms directly with the institution before you apply. How we research and rate.