Calculator Inputs
Use the form below to estimate payment-history strength. The layout stays single-column overall, while the input grid adapts across screen sizes.
Example Data Table
| On-Time % | 30-Day Lates | 60-Day Lates | 90-Day Lates | Collections | Charge-Offs | Months Since Last Late | Clean Streak | Total Accounts | Estimated Score |
|---|---|---|---|---|---|---|---|---|---|
| 96 | 2 | 1 | 0 | 0 | 0 | 12 | 8 | 5 | 84.90 |
| 99 | 0 | 0 | 0 | 0 | 0 | 24 | 18 | 8 | 98.45 |
| 88 | 4 | 2 | 1 | 1 | 0 | 4 | 3 | 4 | 53.65 |
Formula Used
This calculator estimates a payment-history score on a 0 to 100 scale. It is an educational model, not a lender or bureau score.
Payment History Score = On-Time Component + Delinquency Control + Major Derogatories + Recovery Time + Clean Streak + Account Depth
On-Time Component = On-Time Rate × 0.55
Delinquency Control = max(0, 20 − (30-Day Lates × 2) − (60-Day Lates × 4) − (90-Day Lates × 6))
Major Derogatories = max(0, 10 − (Collections × 3) − (Charge-Offs × 4))
Recovery Time = min(10, Months Since Last Late × 0.40)
Clean Streak = min(10, Clean Streak Months × 0.35)
Account Depth = min(5, Total Accounts × 0.50)
Higher on-time percentages, longer recovery periods, and fewer serious delinquencies improve the estimate. Severe late payments, collections, and charge-offs reduce the score faster than minor issues.
How to Use This Calculator
- Enter your approximate on-time payment percentage.
- Add counts for 30-day, 60-day, and 90-day late payments.
- Enter any collections or charge-offs shown in your records.
- Type the months since your most recent late payment.
- Add your current clean payment streak length in months.
- Enter the number of accounts included in your review.
- Press Calculate Score to see results above the form.
- Review the chart, component table, and export options for reporting.
Frequently Asked Questions
1) What does this calculator estimate?
It estimates the relative strength of payment history using late-payment frequency, severity, recovery time, and derogatory events. It gives an educational score, not an official lending decision.
2) Is this the same as a bureau credit score?
No. This tool is only a practical estimator. Real scoring models use many more variables, proprietary rules, and bureau-specific data that are not replicated here.
3) Why do 90-day lates hurt more than 30-day lates?
Longer delinquencies usually signal deeper repayment stress. That is why this estimator applies larger deductions to 60-day and 90-day late payments.
4) Why is time since the last late payment important?
A longer gap since the most recent late payment can indicate recovery and improved behavior. The model rewards that distance with recovery points.
5) Do collections and charge-offs always reduce the estimate?
Yes, in this model they reduce the score because they represent major negative events. Their impact is stronger than ordinary late-payment counts.
6) Why does the calculator include total accounts?
A larger number of reviewed accounts can provide more payment context. This estimator gives a small account-depth credit, capped to avoid overpowering other factors.
7) Can a perfect on-time rate fully offset charge-offs?
Usually not. Major derogatories still carry meaningful weight. Strong recent behavior helps, but severe negative events can continue dragging the estimate down.
8) How often should I recalculate?
Recalculate whenever your report changes, a derogatory item updates, or another clean month is added. Monthly reviews are usually practical for trend tracking.