How it is calculated, and the trap in the denominator
The usual formula is disputes in a month divided by transactions in that month. The subtlety is that a dispute is counted in the month it arrives, while the sale may have been months earlier. A merchant whose volume is falling therefore sees its ratio rise sharply even when nothing about its dispute behaviour changed.
What actually drives disputes in this category
- Unclear billing descriptors. A customer who does not recognize the name on the statement disputes it.
- Slow or untracked shipping. Most “fraud” disputes are really delivery disputes.
- Expectation mismatch. Copy that implies more than the product delivers converts directly into disputes.
- Subscription billing without clear renewal notice.
The cheapest fix
A recognizable billing descriptor, tracked shipping with proactive notification, and a responsive
support inbox. Those three prevent more disputes than any fraud tool, because most disputes are
confusion rather than fraud.