How the company works
What it sells, how it makes money, and the anatomy of the extremes: what has to break for the result to land far from the forecast, either way. In Bank of America's own words, from its annual report for 2025.
Bank of America takes deposits from 69 million consumers and small businesses and from companies, lends and invests them, and sells wealth management, investment banking and trading on top.
How it makes money
Net interest income first: $60.1B in 2025, the spread between what $2.0 trillion of deposits cost and what $1.19 trillion of loans and the securities book earn. Noninterest income, $53.0B, is fees: asset management fees $15.6B, sales and trading $20.2B, investment banking $6.6B, card income $6.4B, deposit fees $5.0B. Total revenue was $113.1B; after $69.7B of expense and $5.7B set aside for credit losses, net income was $30.5B, $3.81 a share, a return on tangible common equity of 14.22%.
What it sells
| Segment, 2025 | Revenue | Net income |
|---|---|---|
| Consumer Bankingdeposits, cards, mortgages and auto loans through 3,600 financial centers, 15,000 ATMs and the app | $43.7B | $12.2B |
| Global Wealth & Investment ManagementMerrill and the Private Bank; $4.8 trillion of client balances | $24.9B | $4.7B |
| Global Bankinglending, treasury services and investment banking for companies and governments | $24.1B | $7.8B |
| Global Marketssales and trading in rates, currencies, credit, equities and commodities | $24.1B | $6.1B |
Revenue net of interest expense and net income by segment as the bank reports them.
Unit economics
A deposit franchise at scale, run at an efficiency ratio of 61.65% (expense over revenue): 213,000 employees, 77% in the United States, and compensation of $42.3B, 61% of noninterest expense. Capital is the constraint: a Common Equity Tier 1 ratio of 11.4% against a 10.0% minimum, with the surplus returned as dividends and buybacks. Credit cost is the swing: $5.7B of provision in 2025. 49 million active digital users, 41 million on mobile, lower the cost of serving each account.
Competitive position
In its own words, "one of the world's largest financial institutions", with a retail footprint that "covers all major markets in the U.S." and operations in more than 35 countries. Competition is "banks, thrifts, credit unions, investment banking firms, investment advisory firms, brokerage firms" and, increasingly, "firms offering products solely over the internet and nonfinancial companies, including firms utilizing emerging technologies, such as digital assets". It competes on service and convenience, price, lending limits and "the quality and delivery of our technology". Supervised by the Federal Reserve and the OCC, with capital and stress tests set by them.
Biggest cost inputs
Interest paid on deposits, $34.5B, and on borrowings and long-term debt; compensation and benefits, $42.3B; technology, premises and other operating expense; credit losses on loans and cards; and the capital regulators require, which caps how much the deposits can be lent.
Anatomy of a large upside
- The deposit base reprices up and the yield widens. Net interest income grew from $56.1B to $60.1B as low-rate securities and loans rolled into higher yields; the consumer franchise's net interest yield of 3.56% and $948B of deposits keep compounding without new capital.
- Wealth and markets take share. Asset management fees rose to $15.6B and sales and trading to $20.2B; Global Markets loans grew 29% and its revenue 10%, so the fee businesses carry more of the earnings and the efficiency ratio falls.
- Lighter capital rules return the surplus. The minimum CET1 requirement fell to 10.0% in October 2025 against 11.4% held; every point freed is lent or bought back.
Anatomy of a large downside
- Rates fall and the spread with them. Net interest income is the largest line and falls with rates; the bank warns that deposits can move to higher-yielding products or into "digital assets (e.g., stablecoin) or other alternative non-bank financial platforms".
- A credit cycle on $1.19 trillion of loans. Consumer cards, commercial real estate and leveraged lending; a recession brings higher charge-offs, a larger allowance and losses on the securities book.
- The new entrants take the cheap deposits and the payments. Internet-only firms, nonfinancial companies and digital assets compete "rather than, or in addition to, traditional banking products"; fee caps on interchange and deposits lost to stablecoins shrink both halves of revenue.
Written from Bank of America's annual report for 2025, in its words and numbers. The extremes are the long view, what has to break for the result to land far from the forecast; the quarter's own cases, each model's, are on the quarter forecast.