What is non-interest income and why does it matter?
Non-interest income includes all bank revenue other than interest income, such as service charges, wealth management fees, mortgage banking revenue, and trading gains, and it measures the degree to which a bank has diversified beyond traditional lending
Non-interest income encompasses every revenue source a bank has outside of interest earned on loans and securities. It appears on the income statement below net interest income and above non-interest expense, and its composition varies dramatically depending on the bank's size, strategy, and business lines.
The most common categories of non-interest income include service charges on deposit accounts (overdraft fees, monthly maintenance fees, ATM fees), fiduciary and wealth management fees, mortgage banking revenue (origination fees, gains on sale of loans, servicing income), interchange and card-related fees, insurance commissions, and gains or losses on the sale of investment securities. For the largest banks, trading revenue and investment banking advisory fees can be significant additional components.
Non-interest income matters for bank analysis because it represents revenue diversification. A bank that derives a meaningful share of revenue from fee-based activities is less dependent on the interest rate spread for its profitability. This diversification can provide more stable earnings through interest rate cycles, since fee income generally does not fluctuate with changes in short-term or long-term rates the way net interest income does. However, certain categories of non-interest income, particularly mortgage banking revenue and trading gains, can be highly volatile on their own.
The non-interest income to revenue ratio measures the percentage of total revenue (net interest income plus non-interest income) that comes from non-interest sources. For community banks focused on traditional lending, this ratio typically ranges from 10% to 25%. Regional banks with trust departments or mortgage operations might fall in the 20% to 35% range. Large diversified banks with capital markets, wealth management, and global transaction banking operations can derive 40% to 60% of revenue from non-interest sources.
When comparing banks, it is important to distinguish between recurring fee income (such as wealth management fees or service charges that repeat each quarter) and episodic or volatile fee income (such as gains on securities sales or one-time insurance settlements). Banks with a higher proportion of recurring fee income generally command higher valuation multiples because their earnings are more predictable.
Analysts also pay attention to changes in fee income over time. Regulatory actions have periodically reduced certain fee categories, such as the Durbin Amendment's impact on debit card interchange fees for banks above $10 billion in assets. These structural shifts can permanently alter the fee income profile of affected banks.
Related Metrics
Related Valuation Methods
Related Questions
- What is net interest income and why is it the most important revenue line for banks?
- What is the difference between interest income and fee income for banks?
- What are non-interest expenses in banking?
Key terms: Non-Interest Income, Fee Income — see the Financial Glossary for full definitions.
Learn how the non-interest income ratio measures revenue diversification