What Is a Chargeback? A Plain-English Guide for Online Sellers

A chargeback is a forced payment reversal triggered by the customer’s own bank rather than by you — it is a payment reversal ordered by the customer’s bank. The money is taken out of the seller’s account first, then the seller gets a window to dispute it with evidence. Unlike a refund, the seller doesn’t authorise it and can’t stop it — only contest it afterwards.

That last part is what surprises sellers. A refund is something you decide to give. A chargeback is something done to you, by an institution you have no relationship with, on a timeline you don’t control.

The system exists for good reasons. It protects people from fraud and from businesses that take money without delivering. It also gets used by customers who received exactly what they ordered and simply changed their mind.

Who’s Actually Involved In a Chargeback

Four parties, and knowing which is which explains most of why the process feels opaque.

• The cardholder — your customer, who initiates the dispute.
• The issuer — the customer’s bank. It decides the outcome. You never speak to it.
• The acquirer — your payment provider’s bank. It receives the chargeback and passes it to you.
• The card network — Visa or Mastercard. It sets the rules, the deadlines, and the penalties.

You have a relationship with exactly one of those four. Every argument you make travels through the acquirer to an issuer that has already provisionally sided with its own customer.

How the Chargeback Process Works, Step by Step

1. The customer disputes the charge. In most banking apps, this takes two taps and requires no evidence up front.
2. The issuer assigns a reason code and provisionally reverses the transaction. The money leaves your account, usually with a fee attached, before anyone has examined the merits.
3. You are notified and given a window to respond. This is called representment — you submit evidence that the transaction was legitimate.
4. The issuer decides. It either sides with you and returns the funds, or makes the reversal permanent.
5. Either party can escalate. Pre-arbitration and then network arbitration follow, each stage adding fees that can exceed the disputed amount.

The critical detail is step two. The money is taken first and adjudicated second, which is the opposite of how most sellers assume it works.

1. Reason Codes, and Why You Should Read Them

Every chargeback arrives with a code that tells you which argument you’re actually answering. Visa groups them into four families:

• Fraud — the cardholder says they didn’t authorise the transaction.
• Authorisation — the charge shouldn’t have been approved in the first place.
• Processing errors — duplicate charges, wrong amount, wrong currency.
• Consumer disputes — product not received, not as described, subscription not cancelled.

The code determines what evidence wins. A fraud claim is answered with authentication and device data. A “not received” claim is answered with delivery confirmation and access logs. Sellers who submit the same generic evidence packet for every dispute lose cases they should win.

2. How Long Everyone Has

Cardholders generally get 120 days to file, counted from the transaction date or the expected delivery date. Some Mastercard reason codes are shorter at 90 days, and the limits vary by code rather than following one universal rule.

The outer edge runs further than most sellers realise. For goods or services not received, the window is 120 days from the expected delivery date but can stretch as far as 540 days from the transaction. A subscription you delivered eighteen months ago is not necessarily closed.

Your side of the clock is tighter, and worth being careful about. Network allowances for merchant response are commonly cited at 20 to 30 days per phase for Visa and 45 calendar days for Mastercard, but published figures disagree and the rules have been revised.

What actually binds you is your processor’s deadline, which is shorter. Some have moved to 9 days for the US and Canada and 18 days elsewhere, and many acquirers want a response inside 5 to 10 days regardless. Treat your provider’s stated window as the real one and ignore the network figure.

What a Chargeback Really Costs a Seller

The disputed sale is usually the smaller half of the loss.

According to Mastercard’s analysis of chargeback costs, merchants absorb an average of $82 in internal costs and $46 in third-party fees per chargeback — around $128 before the value of the product itself. Merchants above $1 billion in revenue report $151.88 in internal costs alone.

Issuers carry costs too, at $9.08 to $10.32 per dispute, which is why banks have their own interest in keeping dispute volume down.

Volume is rising as well. The 2026 Chargeback Field Report projects global chargebacks climbing from 238 million in 2023 to 337 million in 2026 — a rise of about 42% in three years.

The Cost Nobody Puts on an Invoice

Beyond fees, chargebacks damage your chargeback ratio, and the thresholds got tighter this year.

Visa replaced its old Dispute Monitoring Program with the Visa Acquirer Monitoring Program. As of 1 April 2026, the merchant “excessive” threshold is 1.5%, cut from 2.2%. The ratio counts reported fraud plus total disputes against total settled card-not-present transactions — so fraud reports you never saw as chargebacks still count against you.

Cross it, and you get a three-month grace period on first offence, then enrolment, then an $8 assessment fee per disputed or fraudulent transaction on top of everything else.

Chargeback vs. Refund vs. Dispute

These three words get used interchangeably and mean quite different things.

• Refund — you return the money directly. No bank involvement, no fee, no ratio impact.
• Dispute — the customer’s initial complaint to their bank or platform. On some platforms this is a resolution stage that can be settled before it escalates.
• Chargeback — the forced reversal that follows if the dispute isn’t resolved. Fees and ratio damage attach here.

The practical implication is simple. Every dispute you resolve as a refund is a chargeback you didn’t pay for. Making your refund path easier to find than the bank’s dispute button is one of the highest-return changes available to a digital seller.

Subscriptions Change the Maths

Recurring products generate disputes at a higher rate than one-off sales, for a mundane reason: customers forget they subscribed. A charge they don’t recognise looks like fraud to them, and it gets coded as fraud.

Three things move the needle disproportionately on subscriptions — a renewal reminder before the charge lands, a cancellation flow the customer can actually find, and a descriptor that names the product rather than the parent company. None of them are clever. All of them are routinely skipped.

Who Handles the Dispute Matters

If you run your own payment processing setup, every dispute is yours to fight, document, and account for — including the ratio monitoring, which most sellers discover only when the threshold letter arrives.

Digistore24 operates as merchant of record, which means dispute handling and compliance sit with the platform rather than routing to you. Selling across borders, where global payment mistakes tend to compound, is where the difference shows up most.

If you’re tired of managing chargeback ratios and want to focus entirely on scaling your products rather than fighting banking disputes, learn how Digistore24 handles payment compliance for you.