ICICI Bank CASA Ratio Declines to 36.1% Amid FCNR Surge

01

Shift in Deposit Mix and Margin Compression

ICICI Bank has recorded a significant decline in its Current Account Savings Account (CASA) ratio, which now stands at 36.1%. This 340 basis point drop indicates a transition in the bank's funding profile, driven largely by a surge in Foreign Currency Non-Resident (B) deposits. As low-cost domestic deposits become harder to mobilise, the reliance on higher-cost or foreign currency liabilities is increasing.

This change in the liability mix has directly impacted profitability metrics. The bank's Net Interest Margin (NIM) saw a sequential contraction of 18 basis points. While the bank continues to grow its top-line interest income, the narrowing spread between the cost of funds and asset yields suggests that the period of peak margins for Indian private lenders may be transitioning into a consolidation phase.

02

The Impact of Overseas Asset Expansion

The bank's balance sheet is showing a distinct shift toward overseas assets. While these assets provide diversification and a destination for foreign currency inflows like FCNR(B) deposits, they carry significantly lower yields compared to the Indian domestic market.

Domestic assets typically earn upwards of 4%, whereas overseas assets are yielding approximately 1%. This 300 basis point yield gap explains why the surge in foreign currency deposits, while boosting total deposit figures, acts as a drag on the overall margin profile. Lenders are currently balancing the need for liquidity with the necessity of maintaining yield-accretive asset books.

The yield gap between domestic and overseas assets creates a structural challenge for margin maintenance as foreign currency inflows rise.

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03

Resilience in Net Interest Income

Despite the compression in margins and the drop in the CASA ratio, ICICI Bank demonstrated robust growth in its core income streams. Net Interest Income (NII) grew by 18% on a year-on-year basis, showing that volume growth and credit demand remain strong enough to offset some of the pricing pressures.

On a sequential basis, NII growth was more modest at 4%. This suggests that while the bank is successfully expanding its book, the incremental cost of acquiring new deposits is beginning to catch up with interest earnings. For BFSI decision-makers, this highlights the importance of volume-led growth in an environment where cost-of-funds advantages are eroding.

04

Strategic Implications for Asset-Liability Management

The surge in FCNR(B) deposits suggests that banks are looking at global markets to plug the liquidity gap left by slowing domestic CASA growth. However, this strategy requires a delicate recalibration of Asset-Liability Management (ALM). The influx of foreign currency must be deployed efficiently without diluting the Return on Assets (RoA) excessively.

Lenders will likely need to intensify their focus on high-yield domestic retail and MSME segments to compensate for the lower returns on overseas deployments. The competition for granular domestic savings is expected to remain high, keeping deposit rates elevated for the foreseeable future.

05

Operational Challenges in a High-Cost Environment

As the CASA ratio declines, the operational focus shifts toward two main areas: cost optimisation and cross-selling. With the cost of funds rising, banks cannot rely solely on interest spreads for profitability. Fee-based income and operational efficiency become the primary levers for maintaining Return on Equity (RoE).

Furthermore, the shift toward FCNR(B) deposits indicates that NRI and global banking segments are becoming critical for liquidity. Banks will need to enhance their digital onboarding and service capabilities for these segments to ensure that the cost of servicing these higher-cost deposits does not further erode margins.

• Prioritise high-yield domestic lending sectors to offset low-margin overseas assets.
• Enhance NRI banking digital journeys to capture FCNR(B) flows efficiently.
• Implement stricter cost-to-income ratio targets to counter NIM compression.
• Focus on granular retail deposit mobilisation to stabilise the CASA base.

06

What this means for execution

For execution teams, the decline in CASA ratios necessitates a transition from passive deposit collection to aggressive, data-driven acquisition. Field forces must be equipped to target high-value savings and current accounts more precisely to defend the margin profile. The focus must shift toward increasing the 'share of wallet' through integrated banking services.

To manage these complex workflows across domestic and international segments, platforms like Toolyt help banks streamline lead management and field productivity, ensuring that frontline staff can focus on high-yield acquisition targets. Efficient execution in the field will be the deciding factor in how quickly banks can stabilise their CASA ratios and protect their NIMs.