Deposits, Accounts and Payment Services

Introduction

Deposit-taking and payment services are central to commercial banking. Deposits provide banks with a major source of funding, while accounts create the legal and operational framework through which customers save, borrow, receive income and make payments. Payment services connect households, firms, governments and financial institutions across local and international markets.

A sound understanding of this subject requires more than listing account types. Bankers must evaluate product suitability, customer due diligence, account mandates, interest conventions, operational controls, clearing arrangements, payment risk, consumer protection and technological change. They must also distinguish the bank’s relationship with a customer as debtor and creditor from relationships involving agency, custody or payment execution.

This chapter uses general banking principles. Specific rules differ by jurisdiction; therefore, local legislation, central-bank regulations, payment-system rules, tax requirements and supervisory guidance must always be consulted.

Learning objectives

By the end of this chapter, the learner should be able to:

1. Classify major deposit products and evaluate their suitability.
2. Explain account-opening, customer-identification and account-operating procedures.
3. Calculate simple and compound deposit interest and interpret effective returns.
4. Analyse mandates, signing powers, dormant accounts and account controls.
5. Explain clearing, settlement and the risks embedded in payment systems.
6. Compare cards, electronic transfers, remittances and cross-border payment mechanisms.
7. Evaluate governance, consumer-protection, compliance and technology issues in payment services.

1. Deposits as banking products and liabilities

A deposit is generally a claim by a customer against a bank. When a customer places money in an ordinary deposit account, the bank normally becomes the owner of the funds and owes an equivalent amount, subject to the account terms. The customer’s balance is therefore a liability of the bank, not segregated cash held in a box for the customer. Exceptions may arise where funds are held in trust, escrow or a specially structured custody arrangement.

Deposits perform four economic functions:

• Funding: they finance loans, securities holdings and liquidity reserves.
• Liquidity provision: demand deposits enable customers to make immediate payments.
• Monetary transmission: bank deposits are widely used as money in the economy.
• Relationship development: accounts provide information and a platform for additional services.

A deposit product should be assessed using several dimensions: withdrawal flexibility, interest rate, minimum balance, fees, maturity, insurance or protection, tax treatment, access channels and operational risk. A high rate is not necessarily superior if it is accompanied by withdrawal restrictions, penalties or significant fees.

Major categories of deposits

Banks also offer products differentiated by currency, customer segment, balance tier, digital access, linkage to loans and ethical or Sharia-compliant structures. Product classification must not obscure the legal nature of the customer’s claim or the applicable deposit-protection rules.

2. Account-opening and customer due diligence

Account opening is both a service process and a risk-control process. The bank must establish who the customer is, why the account is needed, who controls it and whether the proposed activity is consistent with the customer’s profile.

A robust process normally includes:

1. Application and product selection: identify the customer’s objectives, expected transactions, currency and access requirements.
2. Identification and verification: collect reliable identity information and verify it using approved documents or regulated digital identity methods.
3. Beneficial ownership: for companies, trusts and similar entities, identify the natural persons who ultimately own or control the customer.
4. Purpose and expected activity: understand source of funds, expected volumes, counterparties and geographic exposure.
5. Risk classification: assign a risk level using customer, product, channel and geographic factors.
6. Screening: conduct sanctions, politically exposed person and relevant adverse-information checks.
7. Approval and activation: obtain required approvals, record terms and activate only after mandatory controls are complete.
8. Ongoing monitoring: compare actual activity with the expected profile and update information when circumstances change.

The principle of know your customer (KYC) is not satisfied by collecting documents mechanically. It involves forming a reasonable understanding of the relationship. Customer due diligence (CDD) is risk-based: enhanced due diligence may be required for higher-risk customers, while simplified procedures may be permitted only where law and risk assessment support them. Suspicious activity reporting must be handled confidentially and according to law; staff must not alert a customer improperly.

Legal capacity and account ownership

The bank must determine whether the applicant can enter a valid banking relationship. Relevant categories include individuals, minors, partnerships, companies, associations, trusts, estates and public bodies. The required documents and authority differ for each category.

An individual account may be single or joint. A joint account should state whether operation is:

• Jointly: all designated parties must authorise transactions.
• Either-to-sign: any one authorised party may operate the account.
• Survivorship-based: on death, the balance may pass according to the mandate and applicable succession law.

A mandate cannot override law, a court order or the bank’s duty to verify transactions. On receiving notice of death, insolvency, incapacity or legal restriction, the bank must follow the applicable procedures and may restrict operations pending clarification.

3. Operating accounts and internal controls

Account operation includes deposits, withdrawals, transfers, standing orders, direct debits, card transactions, cheque processing, statements, account closures and changes to customer information. Each operation should be attributable, authorised, accurately recorded and capable of later reconstruction.

A sound control environment separates incompatible duties. For example, the person who creates a beneficiary should not ordinarily be the sole person who approves a high-value payment. Important controls include:

• maker–checker approval;
• transaction and daily limits;
• two-factor authentication;
• call-back or independent confirmation for unusual requests;
• reconciliation of internal records with external settlement reports;
• exception monitoring;
• secure record retention;
• privileged-access management; and
• periodic review of dormant and high-risk accounts.

Statements and digital notifications are not merely conveniences. They allow customers to detect unauthorised activity and allow the bank to evidence its records. Errors should be investigated promptly. A bank should never assume that a transaction is valid solely because it was processed by a credential; authentication, authorisation and fraud indicators must be considered together.

Dormant and inactive accounts

An account may become inactive when there are no customer-initiated transactions for a defined period. The period and treatment vary by law. Banks should notify customers, maintain safeguards against unauthorised reactivation, monitor unusual activity and apply legal rules concerning unclaimed balances. Administrative interest postings or bank fees should not be confused with genuine customer activity.

4. Deposit interest and pricing

Interest is the price paid for the use of deposited funds. Deposit pricing reflects market rates, liquidity value, expected customer behaviour, operational costs, credit and interest-rate risk, reserve or liquidity requirements, competition and strategic objectives.

Simple interest

For a principal amount that earns simple interest at an annual nominal rate:

where I is interest, P is principal, r is the annual rate expressed as a decimal, and t is time in years. The maturity amount is:

This method assumes interest is calculated only on the original principal and is appropriate for products or periods specified as simple-interest arrangements.

Example. A customer deposits 10,000 currency units for nine months at an annual simple rate of 4.8%. With t = 9/12 = 0.75,

I = 10,000 × 0.048 × 0.75 = 360.

The maturity amount is 10,360 currency units before tax and fees.

Compound interest

When interest is added to the balance and subsequently earns interest, the amount is:

Here m is the number of compounding periods per year and t is measured in years. Interest is I = A − P. The formula assumes a constant annual nominal rate, equal compounding intervals and reinvestment of interest.

For the same principal and annual rate compounded monthly for nine months:

A = 10,000(1 + 0.048/12)⁹ ≈ 10,366.53.

Thus compound interest is approximately 366.53 currency units, slightly above the simple-interest result because credited interest is itself reinvested.

The effective annual rate (EAR), when a nominal annual rate r is compounded m times per year, is:

EAR permits comparison between products with different compounding frequencies. It should not be confused with an advertised nominal rate, and fees, taxes and compulsory balances may materially reduce the customer’s net return.

Day-count conventions and balance methods

Banks may calculate interest using actual days over 365 days, actual days over 360 days, or another legally permitted convention. Under a simple daily convention:

where d is the number of interest-bearing days and Y is the day-count base. The bank must disclose the convention, value date, minimum balance rule, tiered rates, rounding policy, withholding tax and crediting frequency. A product that advertises “up to” a rate may apply that rate only to a narrow balance band.

5. Mandates, authority and account governance

A mandate is an instruction defining who may operate an account and how. It may authorise withdrawals, transfers, cheque signing, digital access, borrowing or communication with the bank. The scope must be explicit; authority to obtain information is not automatically authority to transfer funds.

The bank should maintain current specimen signatures or secure authentication records, board resolutions for entities, powers of attorney and evidence of changes in authorised persons. A power of attorney generally ends or changes according to its terms and applicable law, including events such as revocation, death or incapacity.

For business accounts, authority should be checked against constitutional documents and current resolutions. A bank should not rely indefinitely on an old mandate when there is evidence of a change in directors, ownership, control or legal status. Conflicts between account instructions and legal notices require escalation to legal and compliance functions.

6. Clearing and settlement

Clearing is the exchange, validation and calculation of obligations arising from payment instructions. Settlement is the final discharge of those obligations by transfer of funds or central-bank money, commercial-bank money or another accepted settlement asset. Clearing may be bilateral or multilateral; settlement may be gross or net.

In a real-time gross settlement (RTGS) system, transactions are settled individually, typically in central-bank money, and become final when accepted under system rules. RTGS reduces bilateral settlement exposure but requires participants to manage intraday liquidity.

In a deferred net settlement (DNS) system, payment obligations are accumulated and offset. If participant A owes 100 and participant B owes 70, A’s net obligation may be 30. Netting reduces liquidity needs but can concentrate settlement and participant-default risk unless supported by robust guarantees, collateral or loss-sharing arrangements.

A simplified multilateral net position is:

where P_ij is the value payable by participant i to participant j, and N_i is participant i’s net obligation before any system-specific adjustments. The equation is a conceptual representation; actual systems apply cut-off times, returns, liquidity arrangements and legal finality rules.

Payment risk includes credit risk, liquidity risk, operational risk, cyber risk, fraud risk, legal risk and settlement-finality risk. Governance should address participant access, message standards, business continuity, incident reporting, reconciliation, recovery time objectives and resilience to a participant or infrastructure failure.

7. Cards and electronic payment instruments

A payment card may be a debit card, credit card, prepaid card or commercial card. A debit transaction generally draws on available funds or an authorised overdraft. A credit-card transaction creates a customer receivable subject to the credit agreement. A prepaid instrument represents value funded in advance, subject to applicable legal classification.

A card transaction commonly involves the cardholder, merchant, acquirer, payment network and issuer. Authorisation checks whether a transaction may proceed. Clearing exchanges transaction data and calculates obligations. Settlement transfers funds. These stages may be separated in time and may involve intermediaries.

Important controls include chip technology, tokenisation, transaction monitoring, customer authentication, merchant-risk controls, dispute procedures and limits. A chargeback is a reversal or dispute process governed by network rules; it is not automatically proof of merchant wrongdoing. Consumers should understand liability rules for lost credentials, unauthorised transactions, recurring payments and foreign-exchange conversion.

Digital wallets and account-to-account payments can reduce friction but introduce dependency on mobile devices, telecommunications, application programming interfaces and third-party providers. Open-banking models can increase competition while making consent management, data security and operational resilience essential.

8. Remittances and domestic transfers

A remittance is a transfer of funds, often from a migrant worker to a recipient in another location. Domestic payment methods include cash, cheque, instant payment, batch credit transfer, direct debit, card payment and mobile-money transfer.

A transfer process should identify the payer and beneficiary, validate the beneficiary account or alias, apply sanctions screening, calculate fees and foreign-exchange rates where relevant, transmit a secure message and provide confirmation. Error handling should distinguish customer error, bank error, fraud, technical failure and receiving-bank rejection.

Customers should receive clear information on total cost, exchange-rate basis, expected delivery time, cancellation rights, recipient amount and complaint channels. A low stated fee may conceal a less favourable exchange rate. Banks should therefore communicate the total economic cost rather than only the visible commission.

9. Cross-border payment systems

Cross-border payments involve at least two legal jurisdictions and often several intermediaries. A typical chain may include the ordering bank, correspondent bank, beneficiary bank, payment-message network and local clearing system. A correspondent banking relationship allows one bank to provide services to another bank, including access to payment systems and settlement accounts.

Key challenges are:

• differing laws and sanctions regimes;
• time-zone and cut-off differences;
• multiple currencies and foreign-exchange conversion;
• intermediary fees and deductions;
• inconsistent beneficiary data;
• anti-money-laundering and counter-terrorist-financing obligations;
• data-protection requirements; and
• limited traceability for customers.

The bank should identify the payment purpose, screen relevant parties, apply risk-based controls and preserve a clear audit trail. International messaging standards such as ISO 20022 can improve structured data and automation, but a common message format does not by itself guarantee instant settlement, lower fees or legal harmonisation.

10. Applied case: improving payment services at Meridian Bank

This is an illustrative case.

Background

Meridian Bank, a mid-sized retail bank, offers savings accounts, debit cards and domestic transfers. It recently introduced a mobile-app payment service. Customer numbers increased rapidly, but complaints also rose: some transfers were delayed, customers misunderstood exchange-rate charges, and several business accounts were operated using outdated mandates.

Problem

An internal review identified three weaknesses. First, the product team had measured success by transaction volume rather than failed-payment rates and customer loss. Second, account-opening staff collected company documents but did not consistently verify beneficial ownership. Third, the payment-operations unit reconciled settlement reports only at the end of the day, delaying detection of exceptions.

Analysis

Management mapped the process from onboarding to settlement. It found that customer identity checks, payment authentication and transaction monitoring were performed by different systems with incomplete data exchange. A high-risk transfer could therefore pass basic authentication without receiving appropriate contextual review. The bank also discovered that its fee display showed the bank’s commission but not the likely intermediary deduction or exchange-rate margin.

Approach and solution

Meridian adopted a risk-based improvement programme:

1. It introduced a single customer-risk profile linking onboarding, account and payment systems.
2. It required beneficial-owner verification and periodic review for legal entities.
3. It implemented stronger authentication for new beneficiaries and unusual payments.
4. It moved reconciliation from end-of-day to near-real-time exception monitoring.
5. It redesigned disclosures to show fees, exchange-rate assumptions and estimated recipient proceeds.
6. It established a mandate-review trigger when corporate ownership or directors changed.
7. It created a governance committee responsible for payment incidents, customer outcomes and third-party resilience.

Outcome

After implementation, Meridian reported fewer payment exceptions, faster investigation of suspicious activity and fewer complaints about undisclosed charges. The bank did not eliminate fraud or operational failure; instead, it reduced exposure through layered controls and improved transparency.

Learning points

The case illustrates that payment quality is a system property. Product design, onboarding, data architecture, operations, compliance and customer communication must work together. Digital speed is valuable only when accompanied by reliable identity, clear authority, settlement certainty and effective recourse.

11. Governance, ethics and contemporary developments

Deposit and payment services create significant asymmetries of information and power. Customers may not understand compounding, value dates, exchange-rate margins or data-sharing permissions. Ethical banking therefore requires fair product design, comprehensible disclosures, accessibility, non-discrimination and responsible use of customer data.

Important governance principles include:

• treating customers fairly and avoiding misleading rate or fee presentation;
• protecting vulnerable customers and providing accessible channels;
• preserving confidentiality while meeting lawful reporting duties;
• applying proportional, explainable and reviewable fraud controls;
• ensuring third-party and cloud providers meet resilience standards;
• maintaining segregation of duties and independent assurance; and
• testing business continuity, cyber recovery and incident communications.

Artificial intelligence may assist with transaction monitoring, fraud detection, customer-service routing and document review. However, models can generate false positives, reproduce bias, obscure decision logic or expose sensitive data. Human oversight, model validation, explainability appropriate to the use case, challenge procedures and clearly assigned accountability are necessary. AI should support—not replace—legal judgement, customer communication and escalation.

Contemporary payment development includes instant payments, digital identity, open banking, tokenised credentials, central-bank digital-currency research and richer international payment data. Each may improve speed or competition, but each also creates new dependencies and attack surfaces. The appropriate managerial question is not whether a technology is fashionable; it is whether it improves customer outcomes while preserving safety, finality, privacy, resilience and regulatory compliance.

Best-practice framework

A bank evaluating any deposit or payment product should ask:

1. What customer need does the product solve?
2. What legal claim, authority and liability does it create?
3. Are rates, fees, value dates and restrictions transparent?
4. Are onboarding and ongoing monitoring proportionate to risk?
5. Can every transaction be authenticated, authorised, recorded and reconciled?
6. What happens when a payment fails, is disputed or is fraudulent?
7. Are settlement, liquidity, cyber and third-party risks controlled?
8. Are vulnerable customers and data subjects protected?
9. Can management measure outcomes, not merely volumes?
10. Is the product resilient under stress and adaptable to regulatory change?

Chapter Summary

Deposits are bank liabilities and customer claims whose value depends on access, return, safety, restrictions and transparent pricing. Current, savings, notice, term and recurring deposits serve different liquidity and savings objectives. Account opening requires identification, beneficial-owner analysis, purpose assessment, risk classification, screening and continuing review. Account operation depends on valid mandates, legal capacity, authentication, segregation of duties and reliable records.

Interest may be calculated using simple or compound methods, and customers must distinguish nominal rates, effective annual rates, day-count conventions, fees and tax. Clearing is the exchange and calculation of payment obligations; settlement is their final discharge. RTGS and deferred net settlement manage liquidity and settlement risk differently. Cards, domestic transfers, remittances and cross-border payments rely on linked participants and require controls against fraud, operational failure, sanctions breaches and customer misunderstanding.

Effective banking management integrates product design, compliance, technology, settlement infrastructure, consumer protection and governance. Digital and AI-enabled services can improve speed and inclusion, but they must be accompanied by resilience, explainability, privacy and human accountability.

Key Terms

Deposit: Funds placed with a bank, normally creating a liability owed to the customer.

Demand deposit: A deposit accessible on demand, subject to account terms.

Term deposit: Funds placed for a specified maturity, usually at a predetermined rate.

KYC: Know-your-customer processes used to identify and understand a customer.

Customer due diligence: Risk-based procedures for identifying, assessing and monitoring customers.

Beneficial owner: The natural person who ultimately owns or controls a customer or arrangement.

Mandate: Authority specifying who may operate an account and in what manner.

Dormant account: An account with no qualifying customer activity for a prescribed period.

Simple interest: Interest calculated only on the original principal.

Compound interest: Interest calculated on principal plus previously credited interest.

Effective annual rate: Annual return reflecting the effect of compounding.

Value date: Date from which funds or interest are treated as effective under applicable rules.

Clearing: Exchange and calculation of payment obligations.

Settlement: Final discharge of payment obligations.

RTGS: Real-time gross settlement of transactions individually.

Net settlement: Settlement of offset obligations using net positions.

Correspondent banking: Banking services provided by one bank to another bank.

Chargeback: A regulated or network-based reversal and dispute process for a payment.

Tokenisation: Replacement of sensitive payment data with a restricted-use token.

Operational resilience: The ability to continue and recover critical services during disruption.

Review Questions

Short Answer Questions

1. Why is an ordinary customer deposit recorded as a liability of the bank?
2. Distinguish customer due diligence from beneficial-owner identification.
3. What is the difference between clearing and settlement?
4. Define a mandate and give two examples of events that may require its review.
5. Why is the effective annual rate useful when comparing deposit products?

Long Answer Questions

1. Explain the major deposit products and evaluate their suitability for customers with different liquidity needs.
2. Describe a complete account-opening process for a corporate customer, including governance and compliance controls.
3. Compare RTGS and deferred net settlement, including their liquidity, credit and operational implications.
4. Explain the stages and principal risks of a card payment transaction.
5. Analyse the ethical and managerial responsibilities of a bank offering AI-enabled payment monitoring.

Analytical / Application Questions

1. A customer deposits 10,000 currency units for nine months at a 4.8% annual rate. Calculate the interest using simple interest and compare it with monthly compounding. State the assumptions behind each calculation.
2. A company’s account is operated by a director whose authority was removed in a recent board resolution, but the bank has not updated its records. Identify the operational, legal and governance risks and propose controls.
3. A remittance service advertises a zero transfer fee but applies an exchange rate materially below the market reference rate. Evaluate how the bank should disclose the cost and redesign the customer communication.

Multiple Choice Questions with Answers

Question 1

Which statement best describes an ordinary bank deposit?

A. It is normally a liability of the bank owed to the customer

B. It is always segregated cash held in custody for the customer

C. It is an equity investment in the bank

D. It is a loan made by the bank to the customer

Correct Answer: A. It is normally a liability of the bank owed to the customer

Question 2

A deposit of 10,000 currency units earns simple interest at 4.8% per year for nine months. What is the interest?

A. 48 currency units

B. 240 currency units

C. 360 currency units

D. 480 currency units

Correct Answer: C. 360 currency units

Question 3

Which activity is most directly associated with beneficial-owner identification?

A. Determining the bank’s daily cash balance

B. Identifying the natural persons who ultimately own or control a company

C. Calculating a card network interchange fee

D. Setting the central bank policy rate

Correct Answer: B. Identifying the natural persons who ultimately own or control a company

Question 4

What is the defining feature of RTGS?

A. Payments are settled individually in real time, subject to system rules

B. All payments are settled only once per month

C. Only cash transactions can be processed

D. Payment obligations are always fully offset before settlement

Correct Answer: A. Payments are settled individually in real time, subject to system rules

Question 5

Which rate best reflects the effect of compounding over a year?

A. The advertised nominal rate only

B. The effective annual rate

C. The overnight borrowing rate only

D. The account-opening fee

Correct Answer: B. The effective annual rate

Question 6

A mandate primarily specifies:

A. The bank’s tax liability

B. Who may operate an account and how authority is exercised

C. The annual inflation target

D. The currency exchange-rate regime

Correct Answer: B. Who may operate an account and how authority is exercised

Question 7

In a card transaction, authorisation generally determines whether:

A. The transaction is permitted to proceed

B. The merchant’s annual accounts are audited

C. The customer’s deposit rate is changed

D. The payment network is dissolved

Correct Answer: A. The transaction is permitted to proceed

Question 8

Which is a principal challenge in cross-border payments?

A. The absence of any need for customer identification

B. Different jurisdictions, currencies, intermediaries and sanctions requirements

C. Guaranteed identical fees in every country

D. The impossibility of using electronic messages

Correct Answer: B. Different jurisdictions, currencies, intermediaries and sanctions requirements

Question 9

If a payment system calculates each participant’s obligations after offsetting amounts payable and receivable, it is using:

A. Gross settlement only

B. Net settlement

C. Physical settlement by cheque only

D. Equity settlement

Correct Answer: B. Net settlement

Question 10

Why should a bank not evaluate a payment product solely by transaction volume?

A. Volume always has no relationship to revenue

B. High volume may coexist with fraud, failures, complaints or poor customer outcomes

C. Regulators prohibit measuring transaction volume

D. Volume can be measured only for cash transactions

Correct Answer: B. High volume may coexist with fraud, failures, complaints or poor customer outcomes