Kotak Mahindra Bank vs SBI (2026): Capital, ROA, NIM & Which Is Better?

Kotak Mahindra Bank vs SBI: Q1 FY2027 scorecard

Kotak's 4.53% NIM is an enormous structural advantage

The margin is roughly 1.5 percentage points above SBI's whole-bank NIM.

For banks, 150 basis points is huge.

It means Kotak earns substantially more spread before operating costs and provisions are deducted.

The margin has compressed from 4.65% a year earlier and 4.67% in Q4 FY2026.

But the absolute level remains among the strongest large-bank margins.

Why can Kotak earn that kind of margin?

Business mix matters.

Kotak participates in:

• Retail lending.
• Home loans.
• Loans against property.
• SME credit.
• Commercial vehicle finance.
• Corporate lending.
• Wealth relationships.
• Consumer and investment products.

A higher-yielding and fee-rich mix supports better profitability than a balance sheet dominated by huge volumes of relatively low-spread lending.

The deposit franchise is smaller but high quality

Kotak's CASA ratio was 40.3%.

Period-end deposits reached approximately ₹5.73 lakh crore.

Average deposits increased 14%.

Average current accounts grew 15%.

Average fixed-rate savings deposits grew 16%.

Average term deposits grew 14%.

This is unusually balanced liability growth.

Kotak's credit-deposit ratio has moved to 89.4%

That tells us the bank is beginning to put more of its liability franchise to work.

The ratio was 86.7% a year earlier.

Net advances increased 15% to ₹5.12 lakh crore.

Customer assets increased 16% to ₹5.71 lakh crore.

Kotak still has abundant regulatory capital.

The next constraint is not capital availability.

It is finding enough high-return assets without compromising credit quality.

That is harder than it sounds

A bank cannot simply "deploy excess capital" by approving more loans.

If Kotak chased SBI-sized growth rates by weakening underwriting, the capital advantage would eventually disappear through bad loans.

The bank needs:

• Good customers.
• Adequate spreads.
• Fee relationships.
• Controlled concentration.
• Low loss given default.

Capital deployment should improve ROE without destroying ROA.

Kotak's asset quality shows that discipline is currently intact

GNPA improved to 1.18%.

NNPA improved to 0.27%.

Fresh slippages declined 27% year on year to approximately ₹1,321 crore.

Provision coverage stood around 78%.

Credit cost was 0.46%.

These are strong numbers.

The acquired deposits cover only part of the acquired loans

₹29,000 crore of loans versus ₹16,000 crore of deposits means Kotak will absorb a business with a relatively high loan-to-deposit relationship.

That is not necessarily a problem.

Kotak itself has surplus capital and a substantial deposit franchise.

The economics depend on:

• Loan yields.
• Customer quality.
• Wealth cross-sell.
• Deposit retention.
• Integration cost.
• Customer attrition.

The deal can improve ROE even if it barely changes group scale

Kotak does not need the acquisition to transform its balance sheet.

It needs the acquisition to earn more from the equity it already has.

That is a much lower hurdle.

If acquired affluent customers generate banking, wealth and investment fees, the return on deployed capital can exceed what Kotak currently earns by simply holding excess capital.

But the Deutsche business is not current earnings yet

The acquisition remains subject to regulatory approvals and completion conditions.

It is expected to close in 2027.

The ₹29,000 crore loan book should not be added to current Kotak advances today.

Nor should projected synergies be included in current earnings.

It is optionality, not booked Q1 performance.

This is why SBI's ROE is much higher

SBI earns only 1.11% ROA, but 17.87% ROE.

Kotak earns 2.14% ROA, but only 11.98% ROE.

The comparison can be simplified:

Kotak = high asset profitability × low leverage.

SBI = lower asset profitability × higher leverage.

Both routes can create shareholder returns.

The risk profiles are different.

SBI's lower margin is partly the price of scale

Whole-bank NIM is 2.86%.

Domestic NIM is 3.00%.

The bank serves:

• Prime home borrowers.
• Government-linked customers.
• Large corporates.
• Agriculture.
• SMEs.
• Infrastructure.
• International borrowers.

Many of these are enormous markets where spreads are naturally thinner.

SBI compensates through scale and funding access.

₹60 lakh crore of deposits is itself a competitive moat

No private bank can quickly recreate SBI's liability franchise.

CASA ratio was approximately 39.24%.

That puts SBI surprisingly close to Kotak's 40.3% despite operating at more than ten times Kotak's deposit scale.

This is one of SBI's most underappreciated strengths.

The issue is deposit growth rather than deposit quality

SBI deposits increased only 9.73% while advances increased 18.63%.

Kotak's mismatch is much smaller:

• Average deposits: +14%.
• Net advances: +15%.

SBI therefore faces more immediate liability pressure despite having the stronger absolute franchise.

SBI's credit cost is lower than Kotak's

0.27% versus 0.46%.

This is important because Kotak's wider NIM is partly offset after credit losses.

SBI's loan book is enormous and includes segments historically considered higher risk.

Yet the current cycle is producing extremely low credit costs.

Asset quality has become a much weaker argument for paying a big private-bank premium

SBI GNPA is 1.47% and NNPA 0.38%.

Kotak is better at 1.18% and 0.27%.

The gap is real.

It is not remotely as large as the historical public-versus-private-bank stereotype would suggest.

SBI has cleaned up its balance sheet dramatically.

The crucial question is how long 0.27% credit cost can last

SBI's current earnings benefit from an unusually benign credit cycle.

If credit cost eventually normalises to 0.5%-0.7%, earnings growth will slow unless operating income compensates.

Kotak faces the same cyclical risk.

The difference is that Kotak begins with much higher margin and much more capital.

Capital gives Kotak more strategic freedom

A 22.4% CET1 ratio gives management choices.

Kotak can potentially:

• Grow loans faster.
• Acquire loan books.
• Buy customer franchises.
• Invest in subsidiaries.
• Absorb unexpected credit stress.
• Return capital over time if excess persists.

SBI's capital is comfortable.

It does not have the same degree of surplus.

Capital surplus only creates value when management uses it well

Cash sitting safely on the balance sheet protects shareholders but does not automatically enrich them.

Kotak investors should ask whether each incremental deployment:

• Raises ROE.
• Preserves ROA.
• Maintains low NPAs.
• Produces fee income.
• Creates durable customer relationships.

The Deutsche transaction is one test.

Organic asset growth is another.

SBI has already solved capital deployment; it now needs to improve asset productivity

SBI does not need more leverage to lift shareholder returns.

It needs better profit on the enormous asset base it already operates.

A sustainable 10-20 basis point rise in ROA can be extremely valuable at SBI's scale.

Potential drivers include:

• Stable NIM.
• Higher fee income.
• Better operating efficiency.
• Low credit cost.
• Subsidiary monetisation.

The subsidiaries make both groups more valuable than standalone banking ratios imply

Both groups can monetise customers outside the traditional loan-deposit spread.

Kotak's fee growth adds to its ROA advantage

Fees and services income increased 11% to approximately ₹2,500 crore.

Operating profit increased 10% to approximately ₹6,131 crore.

Provisions declined 45% to ₹668 crore.

The bank therefore generated higher profit through a combination of:

• Balance-sheet growth.
• Fees.
• Lower provisions.
• Operating leverage.

That is a healthier earnings bridge than one driven by treasury gains alone.

SBI's Q1 non-interest income moved the other way

Non-interest income declined about 9% year on year.

Treasury and foreign-exchange income were weaker.

Yet PAT still increased more than 10% because NII and core lending economics were strong.

This makes SBI's Q1 result more dependent on the banking engine rather than unusually strong market-related income.

Why doesn't Kotak trade at an even larger book-value premium?

Because its ROE remains below 12%.

A bank with 22% CET1 can have exceptional safety but mediocre equity efficiency.

Investors do not pay indefinitely for unused capital.

The valuation can rerate materially only if Kotak shows that capital deployment can raise ROE without undermining asset quality.

Why doesn't SBI trade closer to Kotak despite 17.9% ROE?

Because SBI's higher ROE comes partly from leverage rather than superior asset economics.

Its ROA is only 1.11%.

NIM is 2.86% whole-bank.

Government ownership introduces a structural valuation discount for some investors.

The market also remembers older PSU-bank credit cycles.

SBI needs years of current-quality performance to fully change that memory.

Fresh split-adjusted market data gives a cleaner Kotak picture

Kotak closed around ₹402 on August 25 and was roughly 11% below its split-adjusted 52-week high.

That is very different from an unadjusted database suggesting an 80% one-year collapse.

Corporate actions should always be normalised before technical or return comparisons are published.

SBI has already produced a strong one-year rerating

Bull Run's August 25 snapshot records approximately 28% one-year return for SBI.

The stock traded around ₹1,048, with a market capitalisation around ₹9.5 lakh crore in the same snapshot.

The rerating means today's SBI buyer is not discovering the asset-quality turnaround at the beginning.

A meaningful portion is already recognised.

What could make Kotak outperform from here?

• ROE rises from roughly 12% toward the mid-teens.
• The Deutsche Bank transaction closes successfully.
• Acquired affluent customers generate strong fee cross-sell.
• NIM remains above 4%.
• 15%+ loan growth continues.
• Credit cost stays contained.
• Capital is deployed without compromising 2%+ ROA.

What could make SBI outperform from here?

• Deposit growth reaccelerates.
• Domestic NIM remains around 3%.
• ROA moves sustainably above 1.1%.
• Credit cost remains below 0.5%.
• High-teens credit growth remains broad-based.
• Subsidiaries continue compounding.
• Capital ratios improve further through retained earnings.

Kotak Mahindra Bank vs SBI FAQs

Which bank is larger?

SBI by a wide margin, with deposits above ₹60 lakh crore versus Kotak around ₹5.73 lakh crore.

Which has the higher NIM?

Kotak at 4.53%, versus SBI at 3.00% domestically and 2.86% whole-bank.

Which has higher ROA?

Kotak at approximately 2.14% versus SBI at 1.11%.

Which has higher ROE?

SBI at approximately 17.87% versus Kotak at 11.98%.

Why is SBI's ROE higher?

SBI operates with more financial leverage and a lower CET1 ratio. Kotak holds substantially more shareholder equity relative to its risk-weighted assets.

Which has better asset quality?

Kotak has lower gross and net NPA ratios, though SBI currently has lower credit cost.

Which is better capitalised?

Kotak, with approximately 22.4% CET1 versus SBI at 12.89%.

Which stock is cheaper?

SBI on current P/E and P/B.

What is Kotak acquiring from Deutsche Bank?

A retail, affluent private-banking and wealth-management franchise in India containing approximately ₹29,000 crore of loans, ₹16,000 crore of deposits and ₹10,500 crore of AUM, subject to completion and approvals.

Why should Kotak historical returns be treated carefully?

Kotak completed a 1-to-5 stock subdivision in January 2026, so databases that do not fully adjust pre-split prices can show false historical returns.

Where can investors check the underlying data?

Use the Kotak Mahindra Bank Bull Run stock page and SBI stock page.

Research sources

• Bull Run — Kotak Mahindra Bank
• Bull Run — State Bank of India
• Kotak Mahindra Bank official financial results
• Kotak official Deutsche Bank India acquisition announcement
• Kotak official stock-split filing
• SBI official quarterly results
• SBI official analyst presentations