Bank Balance-Sheet Structure, Asset Mix and Liability Mix - Article

Introduction

A bank’s balance sheet shows its financial position at a particular date. It tells us where the bank obtained its funds and how those funds were deployed.

For a bank, balance-sheet management is especially important because a large part of its resources comes from deposits and other borrowed funds. These funds are deployed into loans, investments and liquid assets. The bank must therefore manage profitability, liquidity, safety, interest-rate risk, credit risk and regulatory requirements at the same time.

This topic is specifically included in Module D: Balance Sheet Management of the IIBF CAIIB Bank Financial Management syllabus. The 2026 syllabus covers components of a bank’s balance sheet and treats Asset-Liability Management as coordinated balance-sheet management.:chatgpt-content-reference{index="0"}

Learning Objectives

After studying this topic, you should be able to:

• identify the major assets and liabilities in a bank’s balance sheet;

• understand why deposits are liabilities and advances are assets;

• explain the meaning of asset mix and liability mix;

• understand the factors affecting the composition of assets and liabilities;

• connect balance-sheet structure with liquidity, profitability and risk; and

• avoid common CAIIB mistakes relating to balance-sheet items.

Basic Structure of a Bank’s Balance Sheet

A bank receives funds mainly from shareholders, retained earnings, depositors and lenders. It uses these funds mainly for loans, investments and liquidity.

Under Section 29 of the Banking Regulation Act, 1949, commercial banks prepare their Balance Sheet and Profit and Loss Account in the forms prescribed in the Third Schedule. RBI's Financial Statements – Presentation and Disclosures Directions, 2021, updated as on July 3, 2025, continue to require this statutory presentation framework.:chatgpt-content-reference{index="1"}

The main balance-sheet headings are:

The statutory format also separately shows Contingent Liabilities under Schedule 12 and bills for collection.:chatgpt-content-reference{index="2"}

Why a Bank’s Balance Sheet Can Appear Confusing

The balance sheet must be viewed from the bank's point of view, not the customer's point of view.

If a customer deposits ₹1 lakh with a bank, the bank owes ₹1 lakh to that customer. Therefore, the deposit is a liability of the bank.

If the bank gives a ₹5 lakh loan to a borrower, the borrower owes money to the bank. Therefore, the loan is an asset of the bank.

This distinction is one of the simplest but most important balance-sheet concepts.

Major Components of the Asset Side

1. Cash and Balances with RBI

This includes cash held by the bank and balances maintained with the Reserve Bank of India.

These assets provide liquidity and support regulatory and settlement requirements. However, excessive holding of low-yielding liquidity can reduce profitability.

The management issue is therefore not merely to hold more cash, but to maintain adequate liquidity without unnecessarily sacrificing earnings.

2. Balances with Banks and Money at Call and Short Notice

Banks may keep funds with other banks or deploy short-term surplus funds in the call or notice money market.

These assets are generally important for short-term liquidity management.

A bank expecting heavy payment outflows may prefer to maintain more immediately available funds. A bank with temporary surplus liquidity may deploy part of that surplus in short-term instruments.

3. Investments

Banks maintain investment portfolios that may include government securities and other permitted securities.

Investments can serve several purposes:

• maintaining liquidity;

• meeting regulatory requirements;

• earning interest;

• managing surplus funds;

• supporting treasury operations; and

• managing the overall risk-return profile.

Investment management involves balancing yield, liquidity, price risk, maturity and credit quality.

4. Advances

Advances are normally one of the most important earning assets of a commercial bank.

They include different forms of credit such as:

• term loans;

• cash credit;

• overdrafts;

• bills purchased or discounted; and

• other permitted lending exposures.

Loans can generate higher income than very liquid assets, but they also expose the bank to credit risk, concentration risk, liquidity implications and capital requirements.

The objective is therefore not to maximise advances blindly. The bank must maintain an appropriate quality and diversification of credit.

5. Fixed Assets

These include assets used for conducting banking business, such as premises, furniture and equipment, subject to applicable accounting requirements.

Unlike loans or investments, fixed assets are not primarily held to generate interest income.

A very high level of non-earning fixed assets can reduce the efficiency of balance-sheet deployment.

6. Other Assets

Items that do not fall within the earlier asset categories are reported under Other Assets according to applicable accounting and RBI instructions.

For examination purposes, remember that Other Assets is a separate statutory balance-sheet heading, but its detailed contents depend on accounting and regulatory treatment.

Understanding Asset Mix

Asset mix means the proportion in which a bank distributes its total resources among different categories of assets.

For example, two banks with the same total assets may have very different balance sheets:

• Bank A may have more advances and fewer investments.

• Bank B may have more investments and lower credit deployment.

• Bank C may maintain unusually high liquidity.

• Bank D may have greater exposure to particular loan sectors.

The asset mix affects the bank's income, liquidity and risk profile.

Factors Affecting Asset Mix

Profitability

Higher-yielding assets can improve interest income, but higher return is generally associated with greater risk or lower liquidity.

A bank cannot therefore select assets purely on the basis of yield.

Liquidity

Some assets can be converted into cash more easily than others.

Cash and very short-term placements are highly liquid. A long-term loan cannot normally be converted into immediately available funds as easily.

A bank must therefore retain an appropriate level of liquid assets to meet withdrawals, settlements and other obligations.

Credit Risk

A larger loan portfolio can increase interest income, but poor-quality lending can cause defaults, NPAs and provisioning.

Asset growth without asset quality is not sound balance-sheet management.

Interest-Rate and Market Risk

The value or income from financial assets may be affected by changes in market interest rates and other market conditions.

The maturity and repricing characteristics of assets therefore matter.

Diversification and Concentration

Excessive concentration in one borrower, industry, geography or asset category can increase risk.

Diversification helps prevent the entire asset portfolio from being affected by one adverse development.

Regulatory Requirements

Banks cannot determine their asset mix only on commercial considerations. Regulatory liquidity, capital, exposure and prudential requirements also influence asset deployment.

Major Components of the Liability Side

1. Capital

Capital represents funds contributed by shareholders and forms an important financial cushion for the bank.

Capital supports the bank's ability to absorb losses and expand risk-taking activities within regulatory limits.

Although the statutory balance sheet is headed “Capital and Liabilities”, capital should not be confused with customer deposits or ordinary debt obligations.

2. Reserves and Surplus

Reserves and surplus represent accumulated resources retained within the bank according to applicable law, regulation and accounting treatment.

Together with capital, reserves strengthen the bank's financial base and capacity to absorb losses.

3. Deposits

Deposits are normally a major funding source for banks.

They broadly include products such as:

• current accounts;

• savings accounts; and

• term or fixed deposits.

For management purposes, the composition of deposits is very important.

CASA refers to current-account and savings-account deposits. These are often analysed separately from term deposits when banks study their funding cost and deposit franchise.

However, a low funding cost alone does not make a liability mix automatically safe. Stability, concentration, withdrawal behaviour and maturity characteristics also matter.

4. Borrowings

A bank may obtain funds through borrowings from permitted sources.

Borrowings can help:

• meet temporary liquidity needs;

• supplement deposits;

• support balance-sheet growth; and

• manage funding gaps.

However, excessive dependence on wholesale or market borrowings can make funding more sensitive to market conditions and refinancing risk.

5. Other Liabilities and Provisions

Other liabilities and provisions form a separate statutory balance-sheet category.

They include items that are not classified under capital, reserves, deposits or borrowings and are accounted for according to the applicable regulatory and accounting framework.

Understanding Liability Mix

Liability mix means the relative proportion of different sources of funds used by a bank.

A bank may be funded mainly through:

• stable retail deposits;

• large-value deposits;

• term deposits;

• short-term market borrowings;

• longer-term borrowings;

• capital; and

• retained reserves.

Management must decide what combination provides sufficient funding at an acceptable cost and risk.

Factors Affecting Liability Mix

Cost of Funds

Different funding sources carry different costs.

A lower average funding cost generally supports profitability, but the cheapest source should not automatically be considered the best source.

Stability

A funding source that remains with the bank for a reasonably predictable period is more useful for supporting longer-term assets than highly volatile funding.

Banks therefore study depositor behaviour and funding stability, not merely contractual maturity.

Maturity

If a bank finances long-term assets mainly through very short-term funds, it may repeatedly need to refinance those liabilities.

This creates liquidity and refinancing risk.

Interest-Rate Sensitivity

Liabilities may reprice at different times.

A change in interest rates may therefore increase funding costs faster than the yield on assets changes, affecting the bank's net interest income.

Concentration

Heavy dependence on a few large depositors or funding providers creates concentration risk.

Loss of a major funding source can create liquidity pressure even where the bank appears adequately funded in aggregate.

Access to Funding Markets

A bank with diversified funding sources may be better placed to meet unexpected requirements than a bank depending on only one category of funding.

Asset Mix and Liability Mix Must Be Managed Together

Asset management and liability management cannot be treated as two completely independent activities.

Suppose a bank aggressively increases five-year loans because they offer attractive interest income. If those loans are financed mainly through deposits or borrowings that may leave or mature much earlier, the bank may face a funding mismatch.

Similarly, raising a large quantity of deposits is not automatically beneficial. The bank must be able to deploy those funds profitably without taking excessive credit or market risk.

This is why modern banking uses Asset-Liability Management (ALM) as a coordinated approach.

The IIBF syllabus specifically describes ALM under this topic as coordinated balance-sheet management, highlighting that asset and liability decisions should be considered together rather than separately.:chatgpt-content-reference{index="3"}

Practical Banking Application

Consider a bank experiencing rapid deposit growth.

If loan demand is weak, management may temporarily deploy more funds into investments and liquid assets. The balance sheet remains liquid, but earnings may be lower than if good-quality credit opportunities were available.

Now assume credit demand increases sharply.

The bank may increase advances, but management must ask:

• Is sufficient stable funding available?

• What is the credit quality of new borrowers?

• Will the maturity of assets create liquidity pressure?

• How will the new assets affect capital requirements?

• Is the bank becoming concentrated in one sector?

• What happens if deposit costs rise?

Thus, balance-sheet growth alone is not the objective. The quality, cost, maturity and risk of that growth matter.

Contingent Liabilities: An Important Distinction

Contingent liabilities are shown separately from the main balance-sheet assets and liabilities. The Third Schedule places them under Schedule 12 rather than including them in the balance-sheet total.:chatgpt-content-reference{index="4"}

Examples of banking activities can create obligations that depend on future events. Such exposures are important because an off-balance-sheet commitment may later result in an actual payment obligation or credit exposure.

CAIIB Exam Focus

For this topic, concentrate on understanding the logic behind the balance sheet, rather than memorising headings without meaning.

Remember the statutory order of the main headings:

Capital and Liabilities: Capital → Reserves and Surplus → Deposits → Borrowings → Other Liabilities and Provisions.

Assets: Cash and RBI Balances → Balances with Banks and Call/Short Notice Money → Investments → Advances → Fixed Assets → Other Assets.

Important conceptual areas include:

• deposits are liabilities of the bank;

• advances are assets of the bank;

• asset mix affects yield, liquidity and risk;

• liability mix affects funding cost, stability and liquidity;

• high profitability cannot be pursued independently of liquidity and risk;

• long-term assets funded by unstable short-term liabilities can create mismatch risk;

• capital and reserves are different from deposits and borrowings;

• contingent liabilities are separately disclosed; and

• ALM coordinates both sides of the balance sheet.

Common Exam Traps

Linking the Three Core Ideas

For CAIIB, remember the topic through three connected questions:

1. Where did the funds come from? Look at capital, reserves, deposits, borrowings and other liabilities.

2. Where were the funds deployed? Look at cash, bank balances, investments, advances, fixed assets and other assets.

3. Are the two sides properly coordinated? Examine cost, return, liquidity, maturity, repricing, stability, concentration and risk.

That third question connects basic balance-sheet understanding with Asset-Liability Management (ALM), where a bank manages assets and liabilities together to control liquidity, profitability and risk.