Bank Financial Statements: A Primer for Bankers

Introduction

JPMorgan Chase earned $193.3 billion of interest in 2025 and paid out $97.9 billion, mostly to depositors, leaving $95.4 billion of net interest income. It earned another $87.0 billion of fees and other revenue, spent $95.6 billion running the bank and set aside $14.2 billion for credit losses, including $2.2 billion recorded the moment it agreed to take over the Apple Card portfolio from Goldman Sachs, a deal not expected to close for about two years. It made $57.0 billion of net income on total assets of $4.4 trillion, a return on assets (ROA) of 1.29%, according to its 2025 Form 10-K.

Every one of those figures works differently from its equivalent in an industrial company. Interest is a bank's revenue and its main cost; its loans are its inventory; its deposits are its raw material; and a single provision for future losses, required as soon as a commitment is made, can move earnings by billions. This primer explains how a bank's statements are built and what bankers read in them; the FIG guide takes each piece in depth.

A bank's assets are mostly financial: loans to customers, securities, cash held at the central bank and trading assets. Its liabilities are mostly deposits and borrowings. The difference, a thin layer of equity, is the capital that absorbs losses. At the end of 2025, JPMorgan had $1.47 trillion of loans net of allowances and $2.56 trillion of deposits, against shareholders' equity of $362.4 billion, so assets were about twelve times equity. For a bank, that leverage is the business model, and regulators, not the market, set its limits. The structure is walked through line by line in the FIG guide's article on the bank balance sheet.

Loans and the Allowance

Loans held for investment are carried at amortized cost, net of an allowance for credit losses. Under the current expected credit loss (CECL) model in Accounting Standards Codification (ASC) 326, the allowance must cover all the losses the bank expects over the life of its loans, recognized when the loan is made or committed, not when a problem appears.

The lifetime rule explains why JPMorgan recorded $2.2 billion for the Apple Card portfolio years before owning it: the commitment to buy the balances was enough to require a lifetime loss estimate. The general mechanics of expected credit losses are covered in accounts receivable and credit losses; for banks, the allowance is one of the largest judgments in the accounts.

Allowance for credit losses

The reserve a lender holds against its loans for losses it expects over their lifetime, deducted from loans on the balance sheet; the matching reserve for unfunded lending commitments sits in other liabilities. It is increased by provisions charged to earnings and reduced by net charge-offs, the loans written off as uncollectible less recoveries.

Securities

Banks invest much of their surplus funding in debt securities, which ASC 320 classifies either as available for sale, carried at fair value with unrealized gains and losses in other comprehensive income, or held to maturity, carried at amortized cost. The classification decides whether falling bond prices show up in equity, as the mechanics in investments in securities show, and the losses on held-to-maturity securities are visible only in the notes. Those hidden losses were central to the 2023 failure of Silicon Valley Bank, which, as the Federal Reserve's inspector general found, removed its hedges as rates rose and was left with significant unrealized losses on its held-to-maturity portfolio.

Deposits and Funding

Deposits are the cheapest and usually the largest source of a bank's funding, but they are liabilities that customers can withdraw at short notice, so their stability, cost and concentration matter as much as their size. Insured retail deposits spread across millions of customers are stickier than large uninsured corporate balances, and noninterest-bearing deposits are worth more than those paying market rates. JPMorgan lent out only about 58% of its deposits at the end of 2025, its loan-to-deposit ratio, and held much of the rest in securities and cash, a cushion that gives it room to lend more or to absorb outflows. Wholesale borrowings and long-term debt fill the gap between deposits and assets, and their cost rises faster when rates move.

A bank's income statement starts with interest rather than sales. JPMorgan's shows the structure:

Net interest income is the spread between what the bank earns on its assets and pays on its funding, and it depends on interest rates, the mix of assets and the cost of deposits. Expressed as a percentage of interest-earning assets, it is the net interest margin, or net yield, which was 2.50% for JPMorgan on its managed basis in 2025.

Net interest margin

Net interest income divided by average interest-earning assets for a period, the spread a bank earns on its lending and investments after paying for its funding. It rises when asset yields increase faster than deposit and borrowing costs, and falls when funding costs catch up or when lower-yielding assets such as cash and securities grow as a share of the balance sheet.

Noninterest revenue covers fees from cards, payments, asset management and investment banking, and trading results. Noninterest expense is mainly compensation, technology and occupancy, and the ratio of noninterest expense to revenue, the efficiency or overhead ratio, was 52% for JPMorgan.

The provision for credit losses is the charge that tops up the allowance: net charge-offs during the year plus any change in the allowance. JPMorgan's 2025 provision of $14.2 billion comprised $9.8 billion of net charge-offs and a $4.4 billion increase in the allowance. Because the allowance reflects economic forecasts as well as actual losses, provisions can rise sharply when the outlook darkens and fall when it improves, making bank earnings more cyclical than their revenue suggests. The line-by-line walkthrough is in the FIG guide's article on the bank income statement.

Because leverage is the business, bank analysis centers on capital. Regulators require banks to hold common equity tier 1 (CET1) capital, broadly common equity less goodwill, intangibles and certain other deductions, at a minimum ratio to risk-weighted assets. At the end of 2025, JPMorgan's CET1 ratio was 14.6% under the standardized approach and 14.1% under the advanced approach, which had become the binding one, against a requirement including buffers of 11.5% under each. The gap is capacity that can support lending growth, acquisitions or buybacks, and it is the constraint behind most bank capital decisions.

Returns follow from capital. Return on tangible common equity (ROTCE), net income attributable to common shareholders divided by common equity less goodwill and intangibles, was 20% for JPMorgan in 2025, and comparing it with the cost of equity explains much of a bank's valuation. Banks trade on multiples of tangible book value and earnings, and a bank that earns a return on tangible equity well above its cost of equity, as JPMorgan does, trades at a large premium to its tangible book. The relationship is explored in the FIG guide's article on return on equity, ROTCE and ROA.

Bankers covering financial institutions read the statements in a particular order. They start with net interest income and its drivers, because it is the largest source of revenue and the most sensitive to rates. They then look at credit: net charge-offs, nonperforming loans, the allowance as a share of loans and the reasons it moved. Next come capital ratios against requirements, liquidity measures such as the loan-to-deposit ratio and the liquidity coverage ratio, and the composition and stability of deposits. Only then do they turn to fee businesses, expenses and returns.

For acquisitions of banks, the same statements feed the purchase accounting covered elsewhere in this guide: loans are marked to fair value, a core deposit intangible is recorded for the value of low-cost deposits, and the effect on the buyer's tangible book value per share is the measure that matters most. Each of those topics, from credit quality metrics to bank deal structures, is covered in depth in the FIG guide; this primer is the map that shows where they fit.