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What is a chargeback in ecommerce? Network rules, fees, and the 0.9% line

A chargeback is a forced payment reversal initiated by a cardholder through their bank, bypassing you entirely. Networks like Visa and Mastercard charge $15 to $100 per dispute on top of the refunded amount. Breach 0.9% of monthly transactions in chargebacks and Visa flags your account for monitoring, which can escalate to terminated processing if you do not resolve it fast.

·By Matt Putra, Managing Partner ·7 min read
What is a chargeback in ecommerce? Network rules, fees, and the 0.9% line

A chargeback is when a customer's card issuer pulls the funds back out of your bank account after they dispute a charge. It is not a refund. A refund is something you choose to issue. A chargeback is something the bank does to you, governed by Visa and Mastercard network rules, with fees, fines, and a ratio you cannot cross without losing your ability to take cards.

For an ecom operator, chargebacks are a P&L line nobody puts in their model and a compliance risk nobody briefs them on until they are already over the limit. The network-wide average chargeback rate is about 0.17 to 0.26 percent of transactions in 2025, but Visa's 2026 target is 0.9 percent for the merchant ratio and 0.5 percent for acquirers, and Mastercard starts fining you at 100 chargebacks in a month and a 1.5 percent ratio on its Excessive Chargeback Program (ECP). One disputed $80 order on Stripe runs roughly $80 lost revenue + $30 of COGS (Cost of Goods Sold) + $10 of shipping you cannot recover + a $15 dispute fee on your processor, even if you "win" the representment. Multiply that by your real dispute volume and the line gets ugly fast. Numbers below are US standard-account tiers on Visa and Mastercard global rules; AU, EU, and CA vary at the processor-fee layer.

How it works

Six steps. The buyer disputes the charge with their card issuer, usually claiming fraud, "item not received," or "not as described." The issuer files the dispute with the card network using a reason code. Your processor, Stripe or Shopify Payments or PayPal, pulls the disputed amount from your balance and emails you. You have a representment window, typically 20 to 30 days, to submit evidence: tracking, delivery confirmation, signed terms, prior order history. The issuer reviews and either accepts your evidence (you "win") or sides with the cardholder (you "lose"). Either party can escalate to arbitration, which costs several hundred dollars to file and lose depending on the network and case.

The dispute fee is the part operators miss. Stripe charges roughly $15 per dispute and refunds it only if you win on a card-network dispute (not Klarna or Afterpay). Shopify Payments is similar, around $15, with region-dependent refund rules. PayPal is around $20 and typically does not refund the fee even on a win. Above the network threshold, Visa adds an $8 to $10 VAMP fee per TC40 or TC15 the network counts against you, and Mastercard's ECP fine ramp starts at $1,000 a month and climbs to $100,000 to $200,000 a month if you stay over for too long. These dispute fees sit on top of the interchange and scheme fees you already pay on every transaction.

Common triggers

  • True card fraud: stolen card details used at checkout. The residual after friendly fraud is subtracted; share varies widely by vertical.
  • Friendly fraud: legitimate customer disputes a charge they actually made. Typically 21 percent across broad datasets, climbs to 70 to 75 percent in subscription and digital-goods verticals.
  • Item not received: tracking shows delivered but the buyer claims it never arrived. Fix with signature confirmation on orders above your AOV.
  • Subscription billing confusion: customer forgot they were subscribed, calls the bank instead of you. Fix with clear pre-charge emails and a one-click cancel.
  • Slow refund response: you took too long, the buyer escalated to a chargeback instead. Refund within 24 to 48 hours of a complaint to keep this off the dispute log (Eightx recommendation, not a network rule).
  • Crossing the network threshold: once you are above the 1.5 percent ratio on Mastercard ECP (and 100+ chargebacks in a month, two consecutive months) or in Visa's VAMP excessive tier, every chargeback you take starts costing $8 to $10 in fees on top of the dispute fee.

The most common mistake

The biggest mistake operators make is treating chargebacks as a customer-service problem instead of a finance problem. They fight individual cases through Stripe's dashboard, win or lose, and never look at the ratio. By the time you notice you are over 1 percent and your processor is sending warning emails, you are probably 60 to 90 days into a fine ramp on Mastercard ECP or already in Visa's VAMP excessive tier. The fix is a weekly chargeback ratio review (disputes divided by transactions, last 30 days) and a triage rule: refund proactively if the customer has a real complaint, fight only the disputes where you have hard evidence and the dollar amount is worth the $15 fee plus 30 minutes of someone's time. Operators who do this typically hold ratios well under 1 percent, in line with Visa's 0.9 percent merchant target. Operators who do not lose card acceptance. Cross-check your dispute rate against the average ecommerce refund rate by vertical. Disputes should run roughly one-tenth of your refund rate; anything closer means friendly fraud or service issues are leaking into the dispute log.

Browse the full ecommerce finance glossary for every metric and money term a DTC operator needs.

Frequently Asked Questions

how is a chargeback different from a refund?

A refund is initiated by you, processed inside your store or Stripe dashboard, and costs you the order value plus the processing fee. A chargeback is initiated by the customer's bank, pulls the money out of your account without asking you, and adds a $15 to $20 dispute fee on top whether you win or lose. Refunds keep you out of dispute ratios. Chargebacks count against you on Visa's VAMP and Mastercard's ECP thresholds.

what is the visa chargeback threshold for 2026?

Visa's VAMP framework, effective April 1, 2026, flags a merchant as Excessive at a 1.5 percent VAMP ratio AND 1,500 combined TC40 fraud reports plus TC15 disputes in a single month. The target Visa is pushing merchants toward is 0.9 percent. Above the Excessive threshold, Visa charges $8 to $10 per disputed transaction in VAMP fees, on top of your processor's dispute fee. The same thresholds apply across NA, EU, and APAC.

what does one chargeback cost on stripe?

Roughly $15 in Stripe's dispute fee plus the order value you lose plus the COGS and shipping you already spent. So an $80 order with $30 of COGS and $10 of shipping costs you $80 + $30 + $10 + $15, or $135 all-in, even if the product was perfect. Stripe refunds the $15 only if you win the representment on a card-network dispute, not on Klarna or Afterpay disputes. If you are over the network threshold, add another $8 to $10 in Visa VAMP fees per dispute.

what is friendly fraud and how much of my chargebacks is it?

Friendly fraud is when a real customer disputes a charge they actually made: they forgot a subscription, did not recognize the descriptor on their statement, or wanted a refund without bothering to ask. Across broad ecom datasets it is about 21 percent of disputes. In subscription, digital goods, and high-AOV verticals it runs 70 to 75 percent. Visa Compelling Evidence 3.0 (CE 3.0, Visa's prior-transaction defense rule) lets you fight friendly fraud using prior-transaction history from the same card, and 90 percent of surveyed merchants now use it.

what happens if i go over the chargeback limit?

On Mastercard you enter the Excessive Chargeback Program at 100 chargebacks a month and a 1.5 percent ratio for two consecutive months. Fines start at zero, then $1,000, then ramp through $5,000, $25,000, $50,000, and up to $100,000 a month at month 13. High-Excessive (3 percent ratio, 300 chargebacks) doubles those numbers. On Visa, the Excessive tier adds $8 to $10 per dispute. If you stay over for long enough on either network, your processor terminates you and you land on the MATCH list, which makes it very hard to open a new merchant account.

About the Author

Matt Putra, Managing Partner

Matt is the Managing Partner of Eightx, a fractional and interim CFO firm managing $650M+ in revenue across 35+ ecommerce, DTC, and CPG portfolio brands across the US, Canada, Australia, and the UK. A former PE investor with $500M+ deployed, Matt specializes in benchmark-driven financial leadership for apparel, beauty, food and beverage, and household brands.

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