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Default Rate

Portfolio metric measuring the share of loans that have entered default under the lender's or reporting framework's definition.

The default rate measures the share of loans in a portfolio that have entered default. It is a credit-performance metric used to track serious repayment failure after delinquency has progressed far enough to breach the lender’s or reporting framework’s definition of default.

Why It Matters

Default rate sits between early stress indicators like delinquency and later realized-loss indicators like charge-offs. It helps lenders and investors understand how much of the portfolio has crossed from payment trouble into more severe contractual failure.

How It Works in Finance Practice

The exact definition of default can differ by lender, regulation, asset class, or reporting standard, but the general logic is:

$$ \text{Default Rate} = \frac{\text{Loans in Default}}{\text{Total Loans}} $$

Some frameworks define default through missed-payment aging thresholds, while others add restructuring, impairment, or other triggers.

| Metric | What it captures |

| — | — |

| Delinquency Rate | Loans that are overdue |

| Default Rate | Loans that have crossed into a more severe failure state |

| Charge-Off Rate | Loans or balances already recognized as loss |

Practical Example

If a lender tracks default once accounts pass a defined nonpayment or contractual-breach threshold, and 25 loans in a 1,000-loan portfolio meet that threshold, the default rate is 2.5%.

Default rate is not the same as delinquency rate

Delinquency Rate tracks overdue accounts, many of which may still cure. Default rate is more severe and usually reflects accounts that have crossed a later-stage threshold.

Default rate is not always the same as charge-off rate

A loan may be in default before it is charged off. Charge-off relates to accounting loss recognition, while default relates to contractual or regulatory failure status.

  • Delinquency Rate: Earlier-stage portfolio stress metric.

  • Charge-Off Rate: Later-stage loss-recognition metric.

  • Default: Underlying event or status the default-rate metric is measuring.

  • Charge-Off: Loss-recognition event that may follow default.

FAQs

Does every delinquent loan become a default?

No. Some delinquent loans cure before reaching the lender’s or regulator’s definition of default.

Can default rate rise before charge-off rate?

Yes. Default often appears earlier in the deterioration sequence than formal charge-off.

Why can default-rate definitions vary?

Because different loan types, institutions, and regulatory frameworks use different default triggers and reporting conventions.
Revised on Monday, May 18, 2026