How to Reduce Chargebacks and Prevent Fraud at the Same Time

How to Reduce Chargebacks and Prevent Fraud at the Same Time

Reducing chargebacks while preventing fraud means treating criminal fraud, friendly fraud, and merchant error as three separate problems. Each one gets a matching fix (operational, verification, or AI-based) instead of generic fraud screening alone.

Every chargeback costs you more than the sale itself. You lose the order, pay a processor fee, and spend staff hours on evidence. Penalty charges follow if your ratio climbs.

The real problem? Many chargebacks come from real customers, not criminals. Friendly fraud means a customer received exactly what they ordered but disputed the charge anyway. Older estimates put it at up to 75-80% of eCommerce fraud losses. Mastercard's newer data puts fraudulent chargebacks of every kind, friendly fraud included, at around 45% of chargeback volume.

Sources: Mastercard, updated June 2026, research by Datos Insights for the first three (the 45% counts all fraud types), and the 2025 Global eCommerce Payments & Fraud Report.

This guide covers tactics that reduce chargebacks. We'll explore operational fixes that cost nothing and AI-powered systems that prevent disputes before they hit your ratio.

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Qu'est-ce qu'un rejet de débit ?

A chargeback is a forced transaction reversal initiated by a cardholder's bank. When a customer disputes a charge, the bank pulls funds directly from your merchant account, often before you know there's a problem. This differs from a refund, where you control the process and timing.

The chargeback system was designed to protect consumers from unauthorized transactions. However, it's increasingly exploited by buyers who want free products or simply regret a purchase.

Each chargeback costs you the sale amount plus processor fees, typically ranging from $20 to $100 per dispute, and that's before the internal staff time Mastercard's own cost research shows merchants absorb on top of the fee.

Common Causes of Chargebacks and Fraud

La plupart des litiges se répartissent en trois catégories, et chacune nécessite une approche préventive différente. Savoir à quel type de litige vous avez affaire vous aide à trouver la solution la plus adaptée.

Fraude pénale

Criminal fraud is true unauthorized activity. Someone uses a stolen card number, takes over an account, or buys with counterfeit credentials. The real cardholder is a victim and has every right to dispute the charge.

Traditional fraud tools catch criminal fraud through suspicious IP addresses, mismatched billing and shipping addresses, and velocity checks. These orders slip through when fraud screening is too loose or out of date.

Fraude amicale

La fraude amicale, également appelée « fraude interne » ou « abus de rétrofacturation », est la catégorie qui connaît la croissance la plus rapide. Le titulaire de la carte a effectué l'achat lui-même, mais le conteste malgré tout.

Parmi les cas de figure courants, on peut citer :

• Remords de l'acheteur : le client regrette son achat et trouve qu'il est plus simple de demander un remboursement que de renvoyer le produit
• Achats effectués par un membre de la famille : un enfant ou un conjoint utilise la carte sans autorisation expresse
• Abonnements oubliés : le client ne reconnaît pas un prélèvement récurrent
• Vol à l'étalage numérique : abus délibéré consistant pour l'acheteur à conserver le produit tout en se faisant rembourser

Friendly fraud is hard to spot because the order looks real. Standard fraud tools often miss it, since nothing about the purchase looks suspicious. For more tactics, see our guide to chargeback fraud prevention.

Merchant error

Merchant error chargebacks are the most preventable. They happen when something goes wrong on your end, and fixing operational issues eliminates a significant portion of disputes without any special tools.

• Frais en double : traitement d'une même transaction deux fois
• Libellés de facturation peu clairs : le client ne reconnaît pas le montant facturé sur son relevé
• Problèmes d'expédition : retard de livraison ou absence d'informations de suivi
• Manque de communication : absence d'e-mails de confirmation ou service client difficile à joindre

À partir de quel taux de rétrofacturation peut-on considérer qu'il est trop élevé ?

Your chargeback ratio is the number of chargebacks divided by the number of transactions in a given period. Network monitoring uses its own formulas and criteria, not this simple rate alone; see Visa's own restructured monitoring framework.

Once you're in a monitoring program like Mastercard's ECM, getting out takes months of sustained improvement, so it pays to reduce your chargeback rate early. Keep these limits in mind:

• Processors may impose their own account controls independently of these network tests.
• Regional and acquirer criteria differ.
• For Visa, certain pre-dispute resolutions and qualifying CE3.0 fraud reports are excluded, depending on extract timing.
• One transaction can generate both a fraud report and a dispute. Winning a case generally does not remove its report.

Confirm the applicable criteria, exclusions and consequences with your acquirer. See Visa’s VAMP fact sheet for regional criteria and reporting exclusions. If you want a deeper breakdown of the rate math and VAMP/ECM mechanics themselves, see how to reduce ecommerce chargeback rates.

How to Reduce Chargebacks

These seven tactics address the most common dispute triggers. They run roughly from cheapest to most technical. For a stage-by-stage view, see how to prevent chargebacks from checkout to delivery.

1. Révisez vos libellés de facturation

Your billing descriptor is what appears on the customer's bank statement. If it shows a confusing company name instead of your store name, customers may not recognize the charge. Then they dispute it as fraud.

Use your DBA (doing business as) name, and consider adding a phone number or URL. This simple change stops a surprising number of "unrecognized charge" disputes.

2. Veillez à ce que les conditions de remboursement et d'annulation soient faciles à trouver

Customers who can't find out how to get a refund often turn to their bank instead. Show your policies clearly at checkout, on receipts, and in confirmation emails.

A checkbox at checkout creates proof that the customer agreed to your terms. When cancellation is simpler than filing a chargeback, you'll see fewer disputes.

3. Envoyer la confirmation de commande et les informations relatives à l'expédition

Automated emails with tracking links reduce "product not received" claims. Include expected delivery dates and carrier details so customers know when their order will arrive.

These communications also create a paper trail. If a customer says an order never arrived, you have timestamped proof of delivery confirmation.

4. Activez 3D Secure et l'authentification forte des clients

3D Secure (including Verified by Visa and Mastercard SecureCode) adds an identity check at checkout. The customer confirms who they are with their bank before the payment goes through.

Le principal avantage réside dans le transfert de responsabilité. En cas de fraude survenant après une authentification 3D Secure réussie, c'est souvent la banque émettrice qui prend en charge la perte à votre place.

5. Rédigez des descriptions de produits précises et ajoutez des images

Les litiges liés à un « produit ne correspondant pas à la description » surviennent lorsque les attentes ne correspondent pas à la réalité. Indiquez les dimensions, les matériaux, le poids et joignez plusieurs photos prises sous différents angles.

Définir clairement les attentes dès le départ ne coûte rien et permet d'éviter des litiges qu'il est pratiquement impossible de gagner.

6. Répondre aux demandes des clients dans les heures qui suivent

Fast support is the cheapest way to prevent disputes. Many customers contact you before they file a chargeback, if they can reach you.

Proposez plusieurs canaux de contact et répondez rapidement. Un client qui obtient une réponse le jour même est bien moins susceptible de saisir sa banque.

7. Surveiller les données relatives aux rétrofacturations pour chaque prestataire de services de paiement

You can't fix what you can't see. If you're running multiple stores or processors, disputes may be scattered across different dashboards.

Unified visibility shows you patterns: which products draw the most disputes, which marketing channels bring high-risk customers, and which customers have disputed before. Chargeflow Insights provides this consolidated view for free across 100+ payment providers.

How to Prevent Friendly Fraud Specifically

Criminal-fraud tactics like address verification and velocity checks won't help here. These four tactics target the behavior instead:

Merchant networks work well here. If a customer has disputed charges at other stores, you can see that history and act before you ship. Chargeflow Prevent uses data from 20,000+ merchants to identify bad actors in real time.

How to Prevent Chargebacks by Dispute Reason

How to Reduce Chargebacks Without Increasing False Declines

Tighter fraud rules can cut chargebacks and turn away good customers at the same time. A false decline is a real order your rules reject as fraud. It never becomes a chargeback, so it rarely shows up in dispute reports. Getting the split right between fraud prevention vs. chargeback management keeps both numbers in check.

The 2025 Global eCommerce Payments & Fraud Report gives a baseline for that trade-off:

Source: 2025 Global eCommerce Payments & Fraud Report, a survey of 1,082 merchants by Visa Acceptance Solutions, Verifi and the Merchant Risk Council.

A low dispute win rate is the reason prevention pays. Each control below stops a different dispute type and carries a different cost for good customers:

Track three numbers side by side each month: order rejection rate, manual review rate and chargeback ratio. If rejections rise while chargebacks stay flat, your rules are blocking good customers. If both fall, the fix is working.

Chargeback Time Limits: The 120-Day Window and the 540-Day Rule

Prevention also depends on timing. Disputes can arrive months after a sale, so a quiet week does not mean a clean month. Adyen's dispute timeframes summarize the main windows:

Adyen applies the 9-day Visa window to disputes opened from July 21, 2025 on payments processed locally in the US and Canada. Other processors set their own merchant deadlines, so check yours. For network-by-network detail, see our guide to chargeback time limits.

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Comment les alertes de rejet de paiement permettent d'éviter les litiges avant même qu'ils ne surviennent

Chargeback alerts from networks like Verifi and Ethoca tell you the moment a customer starts a dispute, before it becomes an official chargeback on your record.

• Notification en temps réel : recevez une alerte lorsqu'un client contacte sa banque
• Traitement automatique des remboursements : effectuez les remboursements avant que le rejet de débit n'affecte votre taux
• No dispute fee: Prevention costs less than fighting or losing

An eligible, successful alert resolution can prevent a formal chargeback. Visa’s monitoring exclusions depend on extract timing; a refund does not necessarily erase an existing fraud report. Alert fees, coverage and case status still need to be checked. Chargeflow Alerts aggregates all major alert networks and can start preventing chargebacks within 24 hours, cutting dispute volume by up to 90%.

How AI and Automation Reduce Chargebacks at Scale

Manual chargeback management breaks down as order volume grows. Our comparison of automated chargeback processing vs. manual dispute management shows where the gap opens. Each dispute needs evidence, a formatted response, a deadline check, and outcome tracking across several processors. The handoffs where manual chargeback recovery fails are easier to fix once you can see them.

AI-powered automation handles this whole workflow. It spots new chargebacks and pulls evidence from your connected tools. Then it builds responses that meet card network rules and submits them before the deadline, with no manual work. For the full workflow, see how automated chargeback management works.

Chargeflow Automation maintains a 100% submission rate and uses machine learning to optimize evidence based on what wins. The pricing is success-based: you pay only when chargebacks are recovered. See whether AI can improve chargeback dispute win rates.

This matters even more as AI shopping agents start buying on a customer's behalf. Evidence and liability work differently for AI agent chargebacks. Merchants need an evidence playbook built for agentic commerce disputes instead of assuming old tactics still work.

Tip: Pair Alerts for prevention with Automation for recovery to build a complete system. Prevent what you can, and automatically fight what gets through.

Start Reducing Chargebacks With Chargeflow

Chargeflow brings prevention, recovery, and visibility into one platform. Alerts stop up to 90% of chargebacks before they hit.

Automation recovers revenue from the rest with a 4X ROI guarantee. Insights gives you real-time visibility across all your processors.

The pricing model is simple: pay only when chargebacks are recovered. No long-term contracts, no hidden fees.

Start for free and connect your first processor in minutes.

FAQs About Reducing Chargebacks

Peut-on bloquer un rejet de débit une fois qu'il a été demandé ?

Yes, but only through representment, submitting evidence to dispute the claim, or through alerts that catch disputes before they officially become chargebacks. Once a chargeback is finalized and you've lost, recovery options are extremely limited.

Do businesses legally have to fight chargebacks?

No. Fighting chargebacks is optional. Accept valid claims, and challenge a case only when your evidence supports a timely response. Winning generally does not remove a monitoring report, so track recovery and network compliance separately.

Combien coûte un rejet de débit à une entreprise ?

Beyond the lost sale amount, each chargeback includes processor fees ($20–$100) and operational costs for handling the dispute. Penalty fees apply if you're in a monitoring program. Merchants in the 2025 Global eCommerce Payments & Fraud Report put the average cost to resolve one first-party misuse dispute at $78. Compare the cost of manual vs. automated chargeback processing to see where staff time goes.

Combien de temps faut-il pour réduire le taux de rétrofacturation ?

Most merchants see their ratio improve within one to two billing cycles after they add prevention measures. Results depend on order volume, the root causes of your disputes, and how quickly you address them.

En quoi consiste la règle des 540 jours prévue par la loi « rétrofacturation » ?

The 540-day rule is the longest time a Visa or Mastercard cardholder can take to dispute a transaction. It applies in some cases where goods or services are delivered later, such as pre-orders or travel, and runs up to 540 calendar days from the transaction date. In general, cardholders have up to 120 days from the transaction date.

How many chargebacks is too much?

Card networks set formal limits by ratio and count. Visa's VAMP standard Excessive Merchant test in AP, Canada, the EU and the U.S. needs a ratio of at least 1.5% and at least 1,500 monthly fraud and dispute reports. Mastercard's ECM starts at 100 chargebacks and a 1.5% ratio in a month. Many processors act sooner.

How do you reduce false declines without increasing chargebacks?

Merchants reduce false declines without increasing chargebacks by sending mid-risk orders to review or a fulfillment hold instead of declining them, using 3D Secure on risky orders, and adding chargeback alerts for friendly fraud. Tracking order rejection rate next to chargeback ratio shows whether fraud rules are blocking good customers.