The rate environment both banks are pricing into

Neither bank sets its car loan rate in a vacuum. On 5 August 2026 the Reserve Bank of India held the repo rate at 5.25% with a neutral stance, its fourth consecutive hold, while raising the FY27 growth forecast to 6.7% and trimming the inflation projection to 5.0%.

That stability matters more here than on a home loan, for a counterintuitive reason. Almost every car loan in India is written at a fixed rate. A repo cut does not flow through to an existing car EMI. The rate you accept on the day of disbursal is the rate you carry for the whole tenure, which is why the comparison you do in the showroom is the only one you get.

Private banks price above public sector banks. Aggregator data from mid-2026 put the cheapest advertised new car rates at Union Bank of India around 7.40%, Canara Bank and Bank of Maharashtra around 7.45%, and State Bank of India at 8.70%. Both compete on speed, funding percentage and tenure rather than the headline number.

What each bank actually publishes, and what it does not

This is where the comparison gets interesting, and where most articles on this topic quietly invent numbers.

IDFC FIRST Bank maintains a dedicated car loan interest rate page. It states a new car rate starting from 9.99% p.a., with a footnote that the rate applies to loan amounts above ₹1 lakh and tenures of 37 months or more. It lists a processing fee of up to ₹10,000 deducted from the loan amount, a late payment fee of 2% per month of the unpaid EMI or ₹300, whichever is higher, and stamping charges at actuals. It states a foreclosure charge of 5% of the principal outstanding if the loan is booked on a fixed rate, and nil if booked on a floating rate. It also states plainly that part-prepayment is not available on new car loans. Its pre-owned car page quotes 11.99% p.a. for repurchase and 13.99% p.a. for a loan against an existing car.

There is one inconsistency worth knowing about before you walk in. The bank’s main car loan landing page advertises a rate “as low as 8.99%” while the rate page in the same section says 9.99%. Marketing pages and rate pages drift apart at every bank. Treat the rate page as the document and ask the relationship manager to reconcile the two in writing.

IndusInd Bank is the opposite case. Its new car product page carries the application flow and calculator but no rate card. Aggregator tables updated on 15 August 2026 split the pricing by vehicle: 8% to 14% p.a. for new cars and 10% to 20% p.a. for used, on monthly reducing balance, with tenure capped at 60 months on both and funding up to 100% of the ex-showroom price. Those remain secondhand figures.

The processing fee is where the secondhand sources disagree badly. One aggregator quotes 1% of the loan amount; others put it at up to 5%, alongside documentation charges up to ₹5,000 per vehicle and a ₹1,500 cancellation charge. A five-fold spread on the largest upfront cost is not something you can settle from the internet.

IDFC FIRST vs IndusInd Bank: the head-to-head table

Everything both banks state, side by side. Where a cell says “Not published”, the bank does not disclose that term publicly, and the only place you will see it is your own Key Fact Statement.

Note the asymmetry. Every IDFC FIRST cell traces to the bank’s own published pages; most IndusInd cells trace to third-party aggregators, and several are blank. That is not a verdict on either lender, but it does mean a fair comparison is only possible once you hold two Key Fact Statements.

The headline rate is real, but it is smaller than you think

Run the arithmetic and the rate stops looking like the main event. On a ₹10 lakh loan over 60 months, each extra percentage point adds roughly ₹29,000 of total interest.

IndusInd car loan interest rates for new cars range from 8.0% to 14% p.a., and for used cars from 10% to 20% p.a. Two things stand out. That floor beats IDFC FIRST’s by ₹57,943 over five years, an advantage worth chasing. But its ceiling costs ₹3,96,095, marginally more than IDFC FIRST charges on a loan against a car you already own. A six-point band is not a price. Until a sanction letter resolves it, the floor is marketing.

Where the processing fee crossover actually sits

Here is the decision rule almost no comparison article carries. IDFC FIRST caps its fee at a flat ₹10,000. A percentage fee is cheaper on small loans and dearer on large ones, so the crossover depends entirely on which percentage you are quoted, and the reported range runs from 1% to 5%.

At 1% the two are identical on a ₹10 lakh loan. At 2% the flat cap wins from ₹5 lakh upward, at 3% from ₹3.33 lakh, and at 5% from ₹2 lakh, which covers nearly every car loan written. Now put the two numbers together. Borrowing ₹10 lakh over five years at IndusInd’s 8% floor rather than 9.99% saves ₹57,943 in interest. At 1% you keep all of it; at 5% the fee costs ₹47,200 more than the cap and the advantage collapses to ₹10,743. A two-point rate win, surrendered at signing.

Tenure is the lever that actually moves the money

IDFC FIRST markets a ten-year new car tenure as an industry first, with a maximum loan of ₹2 crore. IndusInd is listed at 60 months for both new and used cars, half that ceiling. The longer tenure is marketed as a feature. It is better understood as a risk the shorter one cannot expose you to.

Read the two rows together. Going from five years to ten cuts the monthly outgo by ₹8,032, which feels like relief. It also raises total interest from ₹2,74,527 to ₹5,85,144, up ₹3,10,617. You are not paying less. You are paying 113% more interest for a smaller number on the mandate.

Compare that with the rate question. The full two-point gap between the two banks’ floors is ₹57,943 over five years; five extra years of tenure is ₹3,10,617. The tenure decision is worth five times the best available rate decision, and it is the one the finance desk steers you on, because a lower EMI closes the sale.

The ten-year loan and the ninety-five months underwater

A car is not a house. It loses roughly a quarter of its value in year one and about 15% a year after, while early EMIs on a long loan are almost entirely interest. For a stretch of months you owe more than the car is worth. Sell or total it in that window and you are still repaying a car you no longer own, because the insurer settles on the vehicle’s value, not your loan balance.

At the worst point, month 48, the model shows a shortfall of ₹2,19,734. That is the cheque you write, on top of losing the car, if it is stolen or totalled in year four. Raise the down payment from ₹2 lakh to ₹3 lakh over five years and the window closes entirely; so does a three-year loan. A ten-year tenure is not a cheaper loan. It is a longer period during which you cannot afford anything to go wrong.

Where the crossover lands, by ticket size

Two caveats. The IndusInd percentages are aggregator-reported and conflict with each other, so the only figure that counts is the one in your own Key Fact Statement. And fee waivers are the easiest festive concession to win. Ask for the waiver first.

The money maths, laid out

The table prices a ₹10 lakh loan at each bank’s advertised floor across five tenures, so you can find your own row. Note that IndusInd is listed at 60 months, so its last two rows are hypothetical. Add the processing fee and GST on top; interest itself does not attract GST.

Two clauses turn this into a trap. IDFC FIRST states part-prepayment is not available on new car loans, so the only way to cut a fixed-rate balance early is to close it in full and pay the charge. And because car loans are fixed-rate, the RBI’s 2025 directions barring prepayment penalties on floating-rate individual loans generally do not apply.

Term decoder: what the sanction letter is telling you

The four stages, and how long each takes

Note who holds the money. Disbursal goes straight to the dealer, which is why the finance desk is so willing to arrange it: it earns a commission on the loan it places.

What to do, in order

1. Fix the on-road number first. Get a written breakup: ex-showroom, GST, road tax, registration, insurance, accessories. Small cars carry 18% GST, larger cars and SUVs 40%, EVs 5%.
2. Decide the tenure before you shop for a rate. Five years is the practical ceiling for most buyers; three years eliminates negative equity entirely.
3. Get a pre-approved sanction from your own bank. Salary account relationships routinely beat the dealer’s panel, and the letter is leverage.
4. Ask both lenders for the fee in rupees, not percent. Below ₹10 lakh a percentage fee is cheaper; above it a ₹10,000 cap is. Get the number, then ask for a waiver.
5. Read the foreclosure and part-prepayment clauses before the rate. A 5% exit charge with no part-prepayment is a materially different product from one allowing annual lump sums.
6. Compare on the Key Fact Statement, not the brochure. The KFS carries the APR with all charges folded in, the only figure that makes two offers comparable.
7. Put down at least 20% of on-road price. On the ₹12 lakh example, going from ₹2 lakh to ₹3 lakh down on a five-year loan removes the negative-equity window completely.
8. Diarise the NOC. After the last EMI collect the NOC, closure letter and signed Form 35, file them with the RTO, and check the bureau reflects closure in 30 to 45 days.

Checks that separate a good offer from a cheap-looking one

Frequently asked questions

The short version

IDFC FIRST publishes a new car floor of 9.99% p.a. with a ₹10,000 fee cap, a 5% fixed-rate foreclosure charge, no part-prepayment, funding up to 100% of on-road price and tenures to ten years. IndusInd publishes no rate of its own; the 8% to 14% band listed for it is secondhand, and its fee is reported anywhere from 1% to 5%. Compare on the Key Fact Statement, not the brochure, then spend your attention where the money is: five years instead of seven or ten, at least 20% down, and a fee quoted in rupees. The best rate gap is worth ₹57,943. Five extra years is worth ₹3,10,617.