What is a chargeback? | Walla Support Center
A chargeback is a transaction reversal initiated by a customer's bank — not the merchant. This guide covers what chargebacks are, why they happen, how the dispute process works, and what's at stake for your business. From common triggers like fraud and processing errors to the impact on your revenue, reputation, and compliance standing with Visa, Mastercard, and Discover — start here.
This is your foundational reference for understanding chargebacks as a merchant or business owner.
Definition of a Chargeback
A chargeback is a transaction reversal initiated by a customer's bank or card issuer. It happens when the cardholder disputes a charge on their account.
- The bank temporarily reverses the payment while investigating the claim.
- Chargebacks are meant to protect consumers from unauthorized or incorrect charges.
- They differ from a refund because they are initiated by the bank rather than the merchant.
How the Chargeback Process Works
When a chargeback is initiated, it follows a structured process between the cardholder, their bank, and the merchant.
- Dispute Filed — The cardholder contacts their bank to dispute a charge.
- Notification — The merchant receives a chargeback notification through their payment processor.
- Response Window — The merchant has a limited window to accept or challenge the chargeback.
- Evidence Submission — If challenging, the merchant submits supporting documentation to their processor.
- Bank Decision — The card issuer reviews the evidence and rules in favor of either the cardholder or the merchant.
- Resolution — Funds are either returned to the cardholder or released back to the merchant.
⚠️ Timing matters. Response windows are strict and vary by card network. Missing your window typically means an automatic loss regardless of merit.
Common Reasons Chargebacks Occur
Chargebacks can arise for several reasons, often categorized as either fraud-related or merchant-related.
Fraud or Unauthorized Transactions
- The cardholder claims they did not authorize the purchase.
- Stolen card information was used for the transaction.
Service or Product-Related
- The customer says they did not receive the product or service.
- The product or service was not as described.
- A cancellation or refund request was ignored or processed incorrectly.
Technical or Processing Issues
- Duplicate charges.
- Incorrect amounts charged.
- Expired or declined cards.
Why Chargebacks Matter for Merchants
Chargebacks are important because they affect both revenue and operational workflow.
- Financial impact: Chargebacks can result in lost revenue and additional fees from your payment processor.
- Reputation: Excessive chargebacks may affect your relationship with card networks like Mastercard, Visa, and Discover.
- Compliance: Merchants must follow dispute resolution rules and timelines outlined by card networks to avoid penalties.
Bottom Line
Chargebacks are a standard part of doing business with credit card payments — but they don't have to catch you off guard. Understanding why they occur, how the process works, and how to respond effectively can make the difference between a manageable dispute and an unnecessary loss.
When a chargeback lands in your queue, time and documentation are your best tools. Walla's chargeback resources are here to help you navigate every step of the process with confidence.