Index

Up: Dispute Infrastructure See also: Handling Dispute Surges

Monitoring Dispute Ratios

Definition

The Dispute Ratio (or Chargeback Rate) is the key health metric for any merchant. It is typically calculated as Count of Disputes / Count of Sales. Breaching 0.9% (Visa) or 1.0% (Mastercard) triggers monitoring programs.

Why it matters

It is the "Risk Scoreboard." Staying below the threshold keeps you safe. Breaching it leads to fines ($25k+), reserves, and eventual termination (TMF).

Signals to monitor

  • Monthly Ratio: The official metric used by networks.
  • Daily Trend: The leading indicator (moving average).
  • Sales Volume: The denominator. (Dropping sales volume causes the ratio to spike even if disputes stay flat).
  • Vintage Ratio: Disputes divided by the sales from the same month they occurred (Cohort view).

Breakdown modes

  • Denominator Shock: Turning off marketing reduces sales, causing the dispute ratio to skyrocket (Math problem).
  • Program Entry: Entering the "Visa Monitoring Program" (VFMP) or "Mastercard ECP."
  • Fine Assessment: Unexpected debits for program fees.

Where observability fits

  • Forecasting: "At this rate, we will hit 1.1% on the 25th."
  • Attribution: "The spike is coming from the affiliate 'Summer_Promo_2024'."
  • Denom Management: Identifying the need to push safe volume to dilute the ratio.

Note: observability does not override processor or network controls; it provides operational clarity to navigate them.

FAQ

Is it by Count or Value?

Almost always by Count. A $1 dispute hurts you exactly as much as a $1,000 dispute.

What is the "Lookback" window?

Networks typically compare "Disputes Received this Month" vs "Sales Processed this Month."

Can I ignore Won disputes?

No. The ratio counts all disputes filed, regardless of whether you win or lose. The damage is done at the filing.

See also