HDFC Bank vs Kotak Mahindra Bank (2026): Deposits, NIM, Capital & Which Is Better?
The most useful way to compare HDFC Bank with Kotak Mahindra Bank in 2026 is to ask what each bank can still do with its capital.
HDFC already operates a roughly ₹30 lakh crore loan machine.
Its problem is extracting more margin and ROE from that scale after the HDFC Ltd merger.
Kotak is much smaller, but carries a 22%+ CET1 ratio, a 4.53% NIM and enough capital to acquire new businesses without stressing the balance sheet.
HDFC's next leg depends on improving productivity.
Kotak's next leg depends on deploying surplus capital intelligently.
The ₹100 Equity Thought Experiment
Imagine each bank starts with ₹100 of shareholder equity.
HDFC's advantage is enormous operating scale.
Kotak's advantage is that a much larger percentage of capital is still available for future deployment.
This is why comparing net profit alone misses the investment question.
HDFC Bank vs Kotak Mahindra Bank: Q1 FY2027 comparison
| Metric | HDFC Bank | Kotak Mahindra Bank | Current Edge |
|---|---|---|---|
| Period-end deposits | ₹31.71 lakh Cr | ₹5.73 lakh Cr | HDFC scale |
| Deposit growth | +14.7% YoY | +12% YoY period-end | HDFC |
| Average deposit growth | +13.3% YoY | +14% YoY | Kotak slightly |
| Advances | ₹30.61 lakh Cr gross advances | ₹5.12 lakh Cr net advances | HDFC scale |
| Advance growth | +15.4% YoY gross | +15% YoY net | Very similar |
| CASA ratio | 32.3% | 40.3% | Kotak |
| NIM | 3.26% total-assets / ~3.40% earning-assets basis | 4.53% | Kotak |
| Standalone NII | ₹33,536 Cr | ₹7,928 Cr | HDFC scale |
| NII growth | +6.7% | +9% | Kotak |
| Standalone PAT | ₹19,060 Cr | ₹4,123 Cr | HDFC scale |
| Standalone PAT growth | +5% reported | +26% | Kotak |
| Standalone ROA | ~1.85% | 2.14% | Kotak |
| Standalone ROE | ~13.8% | 11.98% | HDFC |
| GNPA | 1.17% | 1.18% | Essentially tied |
| NNPA | 0.41% | 0.27% | Kotak |
| Credit cost | ~0.40% | 0.46% | HDFC slightly |
| Total capital adequacy | ~19.6% | 22.8% | Kotak |
| CET1 | ~17.4% | 22.4% | Kotak |
| Customer base | Very large national franchise | 5.0 Cr customers | HDFC scale |
| Branches | 9,694 | 2,301 domestic branches | HDFC scale |
| Fresh late-August P/E | ~14x | ~20-21x consolidated | HDFC lower |
| Fresh P/B | ~1.8-1.9x | ~2.1-2.3x current book basis | HDFC lower |
HDFC's post-merger challenge can be reduced to one equation
Huge assets + expensive liabilities = lower ROE than the old HDFC Bank franchise used to earn.
The merger with HDFC Ltd added a huge mortgage book.
It did not arrive with an equally large pool of low-cost CASA deposits.
HDFC therefore had to compete aggressively for term deposits.
The consequence is visible in Q1 FY2027:
- Deposits grew 14.7%.
- Gross advances grew 15.4%.
- CASA ratio was only 32.3%.
- NIM fell to approximately 3.40% on interest-earning assets.
The bank is growing.
The economics of the growth are still below the historical HDFC standard.
HDFC's scale is nevertheless difficult to reproduce
More than ₹31 lakh crore of deposits is not just a balance-sheet number.
It represents millions of relationships across:
- Salaried customers.
- SMEs.
- Corporates.
- Merchants.
- Home borrowers.
- Credit-card users.
- Payment customers.
A challenger cannot replicate this franchise by offering a slightly better fixed-deposit rate for one quarter.
Scale creates cross-sell, transaction data and branch productivity advantages.
HDFC's problem is monetising those advantages at the margin investors were accustomed to before the merger.
HDFC does not need another acquisition to create growth
The balance sheet is already large enough that small improvements in profitability create enormous absolute earnings.
A 10-basis-point improvement in margin across a balance sheet measured in tens of lakh crore can create a meaningful increase in annual NII.
That makes deposit repricing a more important catalyst than headline loan growth.
HDFC's most valuable future asset may simply be cheaper funding.
The retail mix is another hidden earnings lever
HDFC management wants the loan portfolio to become more retail oriented over time.
Retail assets often produce wider spreads than very large corporate loans.
Q1 growth was stronger in small and mid-market enterprises and wholesale segments than in retail.
If branch productivity improves and retail originations accelerate, portfolio mix can support NIM even without a large change in deposit rates.
Kotak starts from the opposite position: margin is not the main problem
Q1 NIM was 4.53%.
That is more than one percentage point above HDFC's earning-asset margin.
Kotak also generated standalone ROA of 2.14%.
Those are excellent bank economics.
The strange part is that standalone ROE was only 11.98%.
Why?
Because Kotak carries a very large equity-capital buffer.
22.4% CET1 is both strength and inefficiency
Kotak has far more common equity relative to risk-weighted assets than it immediately needs.
That gives the bank enormous resilience.
It also suppresses ROE.
If a bank earns ₹2.14 of annualised profit for every ₹100 of assets but funds those assets with unusually large shareholder equity, each ₹100 of equity earns less.
This is why Kotak's ROA can be better than HDFC's while ROE is lower.
Kotak's real strategic problem is capital deployment
The bank needs to grow assets, acquire profitable franchises or return excess capital without weakening underwriting quality.
That is a very different problem from HDFC's funding-cost challenge.
Kotak does not need to prove it can earn a wide spread.
It needs to prove that it can put more of its capital to work at attractive incremental returns.
Loan growth is now accelerating enough to begin that process
Net advances increased 15% year on year to ₹5.12 lakh crore.
Customer assets increased 16% to approximately ₹5.71 lakh crore.
Growth was diversified:
- Retail loans: +12%.
- Home loans: +15%.
- Loans against property: +15%.
- Corporate lending: +15%.
- SME: +20%.
This is not runaway balance-sheet expansion.
It is enough to begin absorbing excess capital without forcing the bank toward low-quality lending.
The funding side is stronger than HDFC's in percentage terms
Kotak's CASA ratio was 40.3%.
Average current-account deposits increased 15%.
Average fixed-rate savings deposits increased 16%.
Average term deposits increased 14%.
The bank therefore grew multiple deposit categories at broadly similar rates.
HDFC's current liability mix is much more dependent on rebuilding lower-cost funding after the merger.
Kotak's 89.4% credit-to-deposit ratio gives it more funding room
Net advances are smaller relative to deposits than HDFC's gross-advance-to-deposit relationship.
That provides more room to grow the asset book before deposits become an immediate constraint.
The 89.4% ratio has increased from 86.7% a year earlier.
Kotak is already using more of its liability franchise.
It simply has not yet reached the balance-sheet intensity of HDFC.
Asset quality may be Kotak's cleanest current operating statistic
GNPA was 1.18% and NNPA only 0.27%.
Fresh slippages declined 27% year on year to ₹1,321 crore.
Provision coverage reached 78%.
Credit cost was 0.46%.
Kotak therefore combines a high NIM with very low net bad loans.
That is a much stronger quality signal than a wide margin generated through risky unsecured lending.
HDFC and Kotak have almost identical gross NPA ratios
HDFC GNPA was 1.17%; Kotak was 1.18%.
The difference appears after provisioning.
Kotak's NNPA was only 0.27% versus HDFC at 0.41%.
Both remain high-quality loan books.
Kotak currently carries the cleaner net position.
The Deutsche Bank transaction is exactly the type of deal Kotak's excess capital allows
Kotak has signed a definitive agreement to acquire Deutsche Bank's retail banking, affluent private banking and wealth-management franchise in India.
The business includes approximately:
- ₹29,000 crore of loans.
- ₹16,000 crore of deposits.
- ₹10,500 crore of assets under management.
- 150,000 customers.
- About 1,000 employees.
This is small relative to HDFC Bank.
It is meaningful relative to Kotak.
Why is the Deutsche deal strategically interesting?
The acquired customers are concentrated in affluent, private banking and wealth segments rather than only mass-market deposits.
Those customers can potentially use:
- Investment products.
- Wealth management.
- Mortgages.
- Securities.
- Insurance.
- SME banking.
Kotak already owns strong securities, asset-management and insurance franchises.
The customer relationship can therefore be worth more than the acquired loan book alone.
But the Deutsche business is not in Kotak's current Q1 numbers
The transaction is expected to close only in 2027, subject to regulatory approvals and customary conditions.
Investors should not add ₹29,000 crore of loans to current Kotak advances today.
Nor should projected synergies be treated as realised earnings.
The transaction is a future catalyst, not current revenue.
Kotak says the transaction should be ROE accretive
That statement is important because ROE is precisely where Kotak's excess capital currently depresses the comparison.
If the bank can deploy capital into a profitable affluent franchise without meaningfully weakening CET1, the transaction could improve shareholder returns.
The acquisition therefore directly addresses Kotak's central capital-allocation challenge.
Kotak is also more diversified outside the bank than a simple P/E comparison suggests
Approximately one-quarter of current group profit comes from businesses beyond the core bank and lending entities.
Major contributors include:
- Kotak Securities.
- Kotak AMC.
- Kotak Life Insurance.
- Kotak Alternate Asset Managers.
- Kotak Mahindra Capital.
This creates fee and market-linked earnings that are not captured by NIM alone.
It also makes consolidated P/E less directly comparable with a pure standalone-bank multiple.
HDFC has a financial ecosystem too, but balance-sheet scale dominates the group
HDFC's bank economics are so large that even valuable subsidiaries are secondary to the core funding discussion.
The bank's market value will move far more from a sustainable 20-basis-point NIM recovery than from a small subsidiary earnings surprise.
Kotak's smaller bank makes non-bank businesses more visible in consolidated profitability.
Which bank currently generates better return on assets?
Kotak on standalone Q1 FY2027 ROA: 2.14% versus HDFC around 1.85%.
This is a significant advantage.
ROA is one of the cleanest bank-quality metrics because it asks how much profit the institution generates from everything on its balance sheet.
Kotak's higher margin and low credit cost are visible in the result.
Which bank generates better return on equity?
HDFC currently has the higher ROE despite lower ROA.
HDFC's current ROE is around the high-13% range.
Kotak standalone ROE was 11.98%.
The apparent contradiction is explained by capital.
Kotak holds 22.4% CET1.
HDFC holds less, though still a strong 17%+ CET1 level.
HDFC therefore uses shareholder equity more aggressively.
Which problem is easier to solve?
HDFC's problem
Lower funding spread after merger.
Solution: improve CASA, allow expensive deposits to reprice, shift loan mix and raise branch productivity.
Kotak's problem
Too much capital relative to current asset deployment.
Solution: grow responsibly, acquire profitable franchises or return excess capital.
Harder hidden risk
Both solutions can destroy value if management chases growth too aggressively.
The market currently charges a premium for Kotak's cleaner economics
Fresh late-August valuation data places HDFC around 14x trailing earnings.
Kotak is around 20-21x on a consolidated basis.
HDFC trades around 1.8-1.9x current book.
Kotak trades a little above 2x current book depending on standalone or consolidated book-value basis.
Kotak therefore is not a cheap-bank recovery story.
The premium reflects higher NIM, higher ROA, cleaner NNPA and exceptional capital strength.
HDFC's valuation now assumes much less perfection than it historically did
The stock traded at ₹727.50 in Bull Run's August 25 snapshot, close to the bottom of its 52-week range.
Fresh external data places trailing P/E around 14x.
That is a very different valuation from the historical period when investors routinely paid a much larger premium for the franchise.
The market is now demanding proof that post-merger ROE can recover.
Kotak's Bull Run historical return fields currently contain a stock-split trap
Kotak subdivided each ₹5 face-value share into five ₹1 shares effective January 14, 2026.
The current Bull Run row still shows a pre-split 52-week high around ₹2,266 against a post-split price around ₹402.
That creates a false-looking one-year decline near 80%.
The company did not lose 80% of its market value.
The per-share unit changed.
This article therefore intentionally does not use Bull Run's current Kotak one-year return or 52-week-high comparison in the investment verdict.
HDFC's current non-financial risk is leadership transition
CEO Sashidhar Jagdishan is due to step down when his current term ends in October 2026.
For a bank still completing a once-in-a-generation merger integration, succession matters.
The next CEO inherits:
- Margin recovery.
- Deposit mobilisation.
- Retail mix optimisation.
- Governance expectations.
- Shareholder pressure for better ROE.
A smooth transition can become a catalyst.
A prolonged transition would create unnecessary execution uncertainty.
Kotak's biggest risk is paying a premium multiple while ROE stays near 12%
A bank trading above HDFC's valuation needs to convert superior ROA into better shareholder returns eventually.
Excess capital can protect downside.
It can also become inefficient if management cannot deploy it productively.
The Deutsche acquisition begins answering that question.
The market will judge the deal by incremental ROE after integration rather than by customer-count headlines.
What should investors track over the next four quarters?
HDFC
- CASA ratio.
- Deposit repricing.
- NIM recovery.
- Retail loan share.
- ROE.
- CEO succession.
Kotak
- 15%+ asset growth.
- NIM above 4%.
- ROA above 2%.
- CET1 deployment.
- Deutsche transaction approvals.
- ROE improvement.
Both
- Deposit competition.
- Credit cost.
- ECL transition.
- Corporate credit quality.
- Rate-cycle margin pressure.
- Fee-income growth.
HDFC Bank vs Kotak Mahindra Bank: current conclusion
Kotak currently has the superior balance-sheet economics per rupee of assets.
Its NIM is 4.53%.
Standalone ROA is 2.14%.
NNPA is only 0.27%.
CET1 is 22.4%.
HDFC currently offers superior scale, higher ROE and a materially cheaper valuation.
Its profitability is being held back by a problem that could improve without requiring extraordinary loan growth: the liability structure created after the merger.
HDFC Bank vs Kotak Mahindra Bank FAQs
Which bank is larger?
HDFC Bank by a wide margin. Period-end deposits were approximately ₹31.71 lakh crore versus Kotak Mahindra Bank at ₹5.73 lakh crore.
Which bank has the better NIM?
Kotak Mahindra Bank at 4.53% versus HDFC Bank at approximately 3.40% on interest-earning assets.
Which has better ROA?
Kotak Mahindra Bank. Standalone annualised ROA was approximately 2.14% versus HDFC Bank around 1.85%.
Which has better ROE?
HDFC currently. Its ROE is around the high-13% range versus Kotak standalone Q1 ROE at approximately 11.98%.
Why is Kotak ROE lower despite better ROA?
Kotak carries unusually high regulatory equity capital. CET1 of 22.4% improves resilience but means more shareholder capital supports each rupee of assets, suppressing ROE.
Which bank has better asset quality?
Gross NPA is almost identical, but Kotak has the lower net NPA ratio at 0.27% versus HDFC around 0.41%.
Which bank is cheaper?
HDFC Bank on current trailing P/E and P/B. Fresh late-August data places HDFC around 14x earnings versus Kotak around 20-21x.
What is Kotak acquiring from Deutsche Bank?
The agreed transaction includes Deutsche Bank's India retail, affluent private-banking and wealth-management franchise, containing roughly ₹29,000 crore of loans, ₹16,000 crore of deposits and ₹10,500 crore of assets under management.
Why is Kotak's Bull Run one-year return unreliable right now?
Kotak completed a 1-to-5 stock subdivision in January 2026. Pre-split historical prices need adjustment before they can be compared with the current post-split price.
Where can investors check the raw data?
Use the HDFC Bank stock page and Kotak Mahindra Bank stock page for Bull Run market data, financial statements, shareholding and price history.
Research sources
Disclaimer
This article is educational and informational only. HDFC Bank and Kotak Mahindra Bank differ significantly in scale, capital structure and non-bank subsidiary contribution. HDFC reports NIM on more than one denominator, so the article distinguishes total-assets NIM from interest-earning-assets NIM. Kotak completed a stock subdivision effective January 14, 2026; unadjusted historical per-share prices and returns can therefore be misleading. Kotak's Deutsche Bank transaction is signed but not completed and remains subject to regulatory approvals and customary closing conditions; acquired loans, deposits, AUM and customers are not included in current Q1 FY2027 operating figures. Nothing here recommends buying, selling or holding HDFC Bank, Kotak Mahindra Bank or any other security. Bull Run is not a SEBI-registered Research Analyst or Investment Adviser.