Net Charge-Off Ratio

The percentage of a bank's total loan portfolio that is written off as unlikely to be collected, net of any recoveries.

The Net Charge-Off (NCO) ratio is a key credit-quality metric used by investors to evaluate the health of a bank's loan portfolio. It measures the actual dollar amount of loans a bank writes off as uncollectible (gross charge-offs), minus any funds subsequently recovered from previously written-off loans, expressed as a percentage of the bank's average outstanding loan balance. This ratio is typically annualized when reported on a quarterly basis. For investors, the NCO ratio is a lagging but highly concrete indicator of credit performance. While provisions for credit losses are forward-looking estimates based on management's expectations, charge-offs represent realized, actual losses. A rising NCO ratio indicates deteriorating underwriting standards, weakening borrower health, or broader macroeconomic stress. When analyzing this metric, investors should compare the NCO ratio to the bank's allowance for credit losses and its provision for credit losses. If charge-offs consistently outpace provisions, the bank may be under-reserved and forced to take large, unexpected earnings hits in future quarters to rebuild its capital buffers. Conversely, a very low NCO ratio during economic expansions may signal conservative lending, but could also mean the bank is missing out on profitable growth opportunities.

A bank has an average outstanding loan portfolio of $100 billion. During the year, it determines that $500 million in loans are uncollectible and writes them off. However, its collection department successfully recovers $100 million from older, previously written-off defaults. The net charge-offs are $500 million - $100 million = $400 million. The Net Charge-Off ratio is $400 million / $100 billion = 0.40%.