Bank intermediation, credit and operational foundations
A bank connects funding, payments, credit and other financial services. Deposits are obligations of the bank to customers, while loans are assets whose contractual collections remain subject to default, delay and restructuring. Maturity transformation can fund longer-term lending with shorter-term liabilities, creating liquidity exposure even when a loan is expected eventually to repay. Capital is a loss-absorbing funding concept distinct from immediately available cash. A profitable institution can experience a liquidity problem, and abundant liquidity does not prove adequate capital.
Credit assessment examines the borrower's capacity and willingness to repay, the proposed purpose, repayment sources, conditions and any security. Begin with sustainable cash generation rather than collateral value alone. Analyze existing obligations, leverage, interest coverage, debt-service capacity and downside scenarios. Financial statements can require adjustment for nonrecurring items, accounting choices and related-party effects. A historical ratio without its definition, period and context is not a complete credit decision. Collateral can reduce loss severity but may decline in value or be difficult to realize; it does not automatically remove default risk.
A fictional borrower has annual cash available for debt service of150and contractual principal-plus-interest payments of100in the same currency units. The supplied debt-service coverage ratio is1.5. This is a model calculation, not a universal approval threshold. If cash falls to90with payments unchanged, the ratio becomes0.9and indicates a shortfall under that definition. Actual lending authority, required disclosures, consumer rights, collateral registration and enforcement depend on current local rules and are not invented in this chapter.
Interest calculations require a timeline and rate convention. Distinguish nominal and effective rates, simple and compound interest, beginning and end-period payments and the day-count basis supplied by the question. A quoted annual percentage cannot be compared fairly with another product if fees, compounding or inaccessible balances are omitted. A payment amortization schedule separates interest on the outstanding balance from principal reduction. Early repayment provisions and charges are contractual and jurisdiction-specific.
Operational controls support accurate authorized service. Separate initiation, approval, recording, custody and independent reconciliation where practicable. Verify instructions through proportionate approved channels, control privileged access and retain a traceable record of exceptions. A data match or unusual transaction is a risk signal for investigation, not proof of a crime. Handling confidential information and identifying an actual reporting obligation require the applicable law and authorized procedures. Current licensing categories, deposit guarantees, central-bank definitions, capital minima and financial-crime reporting rules remain explicit gaps. The aim is common banking and credit reasoning, not a declaration that different countries have identical supervisory systems.