Net Charge-Off Rate
The Net Charge-Off Rate (NCO rate) measures the annualized percentage of average loans that a bank has written off as uncollectible (gross charge-offs) net of any recoveries on previously charged-off loans, serving as a key indicator of actual credit loss experience.
When a borrower defaults and a bank determines that collection of the debt is unlikely, it removes the loan from its books through a charge-off — a formal accounting recognition of the loss. If the bank subsequently recovers some amount on the defaulted loan (through collections, collateral liquidation, or sale of the bad debt), that recovery is netted against gross charge-offs to arrive at the net charge-off figure. Dividing annualized net charge-offs by average loans outstanding produces the NCO rate.
NCO rates vary significantly by loan type. Credit card portfolios historically run NCO rates of 2-6% over a cycle, reflecting the unsecured nature of the credit and the consumer borrower profile. Commercial and industrial loans at large US banks have historically shown much lower NCO rates of 0.1-0.5% in benign environments, rising sharply during recessions. Residential mortgage NCO rates were extremely low pre-2008, then surged to multi-percent levels during the housing crisis.
The NCO rate is a lagging indicator of credit quality — charge-offs occur after loans have been delinquent for extended periods (typically 90-180 days for consumer loans, often longer for commercial loans). Portfolio managers and bank analysts therefore monitor leading indicators such as 30-day and 90-day delinquency rates, criticized loan ratios, and management guidance on emerging problem credits to anticipate where NCO rates are headed.
For bank equity analysts, the NCO rate directly affects profitability. Provision expense — the amount banks set aside for expected future losses — is calibrated to maintain adequate reserves against projected charge-offs. When NCO rates rise, provisions must increase, directly reducing pre-tax income. The interplay between NCO rates, provision expense, and the allowance for loan losses is a central focus of bank earnings analysis.
Comparison of NCO rates across banks and periods requires attention to portfolio composition, since a bank with a large credit card portfolio will naturally show a higher aggregate NCO rate than a bank focused on commercial real estate, even if neither is performing poorly relative to its peer group.