What is a Roll Rate?
In financial analysis and credit risk management, a roll rate is a metric used to track the movement of delinquent accounts from one stage of delinquency to the next. It measures the percentage of balances or accounts that "roll" forward into a worse state of non-payment. For example, a 30-to-60 day roll rate tracks how many accounts that were 30 days past due last month have now become 60 days past due this month.
How to Use the Roll Rate Calculator
To use this tool, simply input two figures. First, enter the total balance or number of accounts in your starting delinquency bucket (the "Current" or "Initial" bucket). Second, enter the portion of that specific balance that moved into the subsequent, more delinquent bucket in the following period. The calculator will automatically determine the percentage transition, allowing you to see the velocity of your credit risk.
Why Roll Rates Matter for Credit Risk
Roll rates are essential for forecasting future losses. By analyzing historical roll rates, financial institutions can predict how much of their current portfolio will eventually default (becoming "Charge-offs"). If roll rates begin to climb, it serves as an early warning sign that the credit quality of the portfolio is deteriorating, potentially requiring higher loan-loss reserves (ALLL).
Common Roll Rate Formulas
The basic formula used by this calculator is: (Amount Moving to Next Bucket / Total Amount in Initial Bucket) x 100. Sophisticated risk models often utilize these rates in a "Roll Rate Matrix" to visualize transitions across multiple stages, from Current to 30-day, 60-day, 90-day, and eventually Loss.
Frequently Asked Questions
What is a net roll rate? A net roll rate accounts for both accounts moving forward into delinquency and accounts that "cure" by returning to a current status.
Can roll rates be used for marketing? Yes, while primarily a risk tool, they can also identify customers who are struggling and might benefit from different payment plan structures or financial products.