Merchants selling online are, for better or worse, at the mercy of banks. Over 60% of all online transactions are conducted with a card, for which merchants must pay processing fees, and assume fraud liability. While these expenses are often offset by card users buying more, card transactions introduce a hidden danger that can hurt merchant’s brand reputation, in addition to their bottom line: payment declines. According to Riskified’s research, up to 70% of these declines happen to good customers who can afford to make the purchase.

Why do banks make so many mistakes?

Some quick background

Before I answer that question, here’s a review of why payment declines happen:

Between the time a customer hits the “buy” button, and the merchant has the opportunity to capture the funds, an online purchase must be authorized by several financial entities. An online credit card transaction can be declined by the payment gateway, the payment processor/acquirer, or the card issuer. When that happens, the shopper usually sees something like this:

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At this point, customers tend to become confused, frustrated, or even angry; they know they can afford to make this purchase (and aren’t committing fraud), and from their point of view it looks like the merchant has refused their purchase request.

How Common are Payment Declines?

…Extremely common. Riskified’s research into the authorization process has uncovered that for the average merchant, 1 in every 10 eCommerce dollars is declined during payment authorization – meaning $340B will fail authorization in 2019!

But when considering the impact of these declines, sheer volume is less of a concern than inaccuracy: when we dug into those declines we found that, depending on industry, up to 70% of these orders were placed by legitimate customers who could afford to make the purchase.

Why do Banks Make Mistakes?

The high rate of erroneous  payment declines is shocking, but understandable: the technical infrastructure and tools used by banks and payment processors to authorize payments are clunky and outdated. These systems – built in the 1990’s or earlier – are unable to keep up with surging eCommerce transaction volume and have not been adapted to current shopping trends.

It’s hard to know precisely what causes an order to be declined during authorization, because  banks closely guard their decisioning mechanisms. This is why payment declines are accompanied by very vague explanations, like these:


The banks’ intentions are noble. For one, they want to guard the privacy of their users – they don’t want merchants to know if, for instance, a cardholder exceeded their credit limit. Second, if their exact decision process was public, it would be much easier for fraudsters to exploit it. But the effect for merchants is that the system, which declines on average 10% of their potential eCommerce revenue, is a black box.

However, based on an extensive post-mortem Riskified conducted on several million payment declines, we determined some clear patterns of inefficiencies in bank processing systems. The following transaction types are particularly likely to be falsely declined:

1. High-ticket orders

While it’s true that high-ticket orders are more likely to be fraud, banks are far too risk averse when it comes to these. As a result, payment decline rates in high-end verticals like luxury fashion can exceed 30%.

2. Orders with an international element

Orders with international elements are particularly likely to be rejected. For instance, an order placed with a US merchant, with a card issued by a French bank. When these parties aren’t familiar with each other there’s a relatively high chance that one of them will choose to decline the transaction.

3. Orders with non-traditional shopping patterns

Our research suggests that because bank’s systems were developed so long ago, they are unable to keep pace with the rapidly changing eCommerce landscape. We know it’s really not that odd for a customer to, for example, make a purchase while they’re traveling, and request to pick-up in-store in their home town once they come back. But, like many legacy rules-based review tools, banks seem to be risk averse when it comes to orders with apparent mismatches.

What’s the Business Impact?

So first of course, there’s the lost revenue. Merchants operating in more vulnerable verticals  – like sneakers, high-end fashion and travel – can experience payment decline rates in the range of 20-30%. When you consider that up to 70% of these are good orders, that’s a staggering dent to your bottom line.

And then there’s the brand impact. As mentioned above, shoppers rarely understand the ins and outs of the authorization process, and tend to blame the retailer for the payment decline. Merchants are held responsible for rejecting orders they never even had the opportunity to accept. And having your payment declined is a frustrating experience – Riskified’s consumer survey found that over half the time, shoppers abandon their cart after the first payment decline. It’s a bad look when a customer is declined at your site, but the purchase goes through with a competitor.

How Can Merchants Fight Back?

Merchants are suffering because of bank’s inefficient processes. That’s why Riskified created Deco – a new product that leverages our fraud-detection expertise to recoup revenue that is lost to payment declines.To learn more, check out our free guide, or request a personal demo of our solution.