Every installment loan traces the same arc: it is originated, disbursed, repaid (or not), and eventually closed — either through full repayment or through the accounting event called charge-off. Understanding this lifecycle is not just theoretical. Each stage generates different risk signals and calls for different management responses.
The Lifecycle Stages
Origination → Disbursement → Repayment (in-life) → Close / Default → Recovery → Charge-off
Origination is the underwriting and approval decision. The borrower applies; the lender scores, prices, and decides whether to offer credit and at what terms. All the tools from Part 2 (segmentation, scoring) operate here.
Disbursement is when funds are transferred to the borrower. This is the point of no return — once the money is out the door, the lender can only collect, not withdraw. Disbursement rate (the share of approved-and-accepted borrowers who receive funds) is a pipeline metric, not a credit metric, but it affects portfolio composition.
Repayment is the in-life stage. The borrower makes (or misses) payments over the loan tenor. This is where the majority of account management activity occurs — monitoring, behavioral triggers, early intervention, and restructuring offers.
Close / Default is the terminal event. A performing loan closes when the final EMI is received. A defaulting loan transitions into recovery when the borrower stops paying for long enough to trigger charge-off.
Recovery is the post-default stage. The lender pursues collection through its own operations or sells the debt to a third-party collector. Recovery rates vary significantly by vintage quality and time elapsed since default.
Charge-off is an accounting event, not a credit event. The loan balance is removed from the books as an unrecoverable asset. In most markets this occurs at DPD 90–180, depending on regulatory requirements. Charge-off does not stop recovery activity — collections on charged-off accounts can continue.
First Payment Default: The Strongest Signal
First Payment Default (FPD) occurs when a borrower misses the very first scheduled EMI. It is the most informative single event in the entire loan lifecycle.
Why is it so predictive? Three reasons:
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Fraud. Some borrowers never intended to repay. They provided falsified documents to obtain disbursement. Missing payment #1 is the first moment the fraud becomes observable.
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Stated-income inflation. A borrower overstated their income to qualify. The approved EMI is above what they can actually service. They learn this when the first due date arrives.
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Behavioral intent. Some borrowers, facing multiple obligations, make deliberate triage decisions. A lender they are willing to prioritize below others will experience FPD.
FPD rate is typically calculated as:
\[FPD\ Rate = \frac{\text{Loans with first payment missed}}{\text{Total originated loans}}\]A healthy consumer installment portfolio runs FPD rates of 1–4%. Above 5% indicates an underwriting problem, a fraud exposure, or both. FPD loans almost never recover — their eventual charge-off rate is 80–95%.
The month in which FPD is observed also matters. A loan originated in January that misses its February payment is a January vintage FPD. Tracking FPD by vintage (origination cohort) is the earliest available signal of vintage quality. You know in month 2 whether something went wrong at origination in month 1.
In-Life Monitoring
Between origination and resolution, the lender has continuous visibility into borrower behavior at each Month-on-Book (MOB). Payment behavior is tracked at every cycle:
| Payment Status | Definition | Action Trigger |
|---|---|---|
| Prepaid / Early | Paid before due date | Monitor for rate-sensitive behavior |
| On-time | Paid within grace period | No action; baseline |
| Grace period | Paid 1–5 DPD | Soft reminder if pattern persists |
| Early delinquency | DPD 6–29 | Outbound call; assess cure probability |
| Late delinquency | DPD 30–59 | Intensified contact; restructuring assessment |
| Deep delinquency | DPD 60–89 | Legal demand; last-resort intervention |
| Pre-charge-off | DPD 90+ | Charge-off preparation; handoff to recovery |
Behavioral triggers are pre-defined rules that escalate a case to a collection action. The trigger design matters as much as the action: triggering too early is expensive (false positives); triggering too late allows accounts to slide into deeper delinquency where cure rates are far lower.
The cure rate drops sharply with DPD progression:
| DPD Bucket | Typical Cure Rate |
|---|---|
| DPD 1–29 | 60–80% |
| DPD 30–59 | 30–50% |
| DPD 60–89 | 15–25% |
| DPD 90+ | 5–10% |
This table is the core reason for early intervention programs. Catching an account at DPD 15 instead of DPD 45 is worth more than any collection technique applied later.
Delinquency Stages and DPD Buckets
Days Past Due (DPD) is the number of days since a payment was due but not received. It is the universal currency of consumer lending risk measurement.
Roll forward is when an account moves from a lower DPD bucket to a higher one (deteriorating). Cure is when an account returns to current (DPD = 0) from any delinquency stage.
The roll rate matrix (covered in depth in Part 4) formalizes this: it shows the probability of transitioning from each DPD bucket to every other bucket over a one-month period. A healthy portfolio shows high cure rates from early DPD buckets and low roll-forward rates. A deteriorating portfolio shows the opposite.
DPD 30 and DPD 90 are the standard reporting thresholds used in portfolio management, investor reporting, and regulatory filings. DPD 30+ rate (share of portfolio 30 or more days past due) is the most common headline delinquency metric. DPD 90+ is the standard definition of “non-performing.”
Recovery and Charge-off
Once an account crosses DPD 90–180 (market-dependent), the lender writes it off the balance sheet. This is the charge-off event. From a P&L perspective, the loan’s outstanding balance moves from assets to loss.
Post-charge-off recovery generates credit back against losses. The lender can:
- Continue internal collections (agent calls, payment plans)
- Sell the debt to a third-party collector (debt sale), receiving cents on the dollar
- Pursue legal judgment (for larger balances where legal cost is justified)
Recovery rates range widely — from 5–10% on old, deepened defaults to 25–40% on recently charged-off accounts where the borrower still has assets or income. Vintage quality heavily influences recovery: defaults from aggressive origination vintages tend to be deeper and harder to recover.
Net Charge-off Rate (NCO) adjusts for recoveries:
\[NCO\ Rate = \frac{\text{Gross Charge-offs} - \text{Recoveries}}{\text{Average Outstanding Balance}}\]NCO is the credit loss measure that flows directly into P&L as Credit Loss provision. It is the metric that makes or breaks the margin calculation from Part 1.
Payday Note
The payday loan lifecycle collapses to two events: disbursement and repayment/default. There is no in-life stage.
- No behavioral triggers to set
- No early intervention opportunities
- No restructuring options
- No DPD curve to monitor
The entire observable lifecycle is 30–45 days. If the borrower repays, the loan closes. If the borrower cannot repay, the lender has one choice: roll over the loan (extend it, usually with an additional fee) or write it off.
Rollover policy is the only management lever in payday. Whether to allow rollovers, how many, and at what cost is the equivalent of a restructuring policy in installment lending — but applied uniformly at the product level, not individually at the account level.
This compresses the analytical problem dramatically: since you can observe nothing in-life, everything depends on the origination decision. And since most payday borrowers are thin-file or unscored, that origination decision is made under severe information constraints.
In Part 4, you will see how portfolio-level metrics are built from aggregated loan lifecycle data — and why MOB (Month-on-Book) is the organizing dimension that makes installment lending measurable in a way that payday never can be.