Cart abandonment is when a shopper adds items to their online cart and leaves without buying. It is the largest single leak in ecommerce revenue: Baymard Institute’s running average across dozens of studies puts the abandonment rate at just over 70% of all carts. Some of that is window shopping that was never going to convert; a meaningful share is buyers lost to fixable friction.
Cart Abandonment vs. Checkout Abandonment
The terms get used interchangeably, but they describe different funnel stages. Cart abandonment covers everyone who added an item and left, including browsers who never intended to buy. Checkout abandonment counts only shoppers who started checkout and quit, which makes it the sharper signal: those people wanted the product, and something in the process stopped them. Measuring the two separately tells you whether to fix merchandising or the checkout itself.
Why Shoppers Abandon Carts
Setting aside the just-browsing majority, Baymard’s research on shoppers who abandoned during checkout finds consistent causes: extra costs like shipping, taxes, and fees (40%), slow delivery, being forced to create an account, checkout flows that are too long or complicated (17%), not trusting the site with card information (19%), an unsatisfactory return policy (12%), a declined card (10%), and too few payment options (9%). Shopify’s research similarly finds roughly a quarter of shoppers abandon when account creation is required. The pattern across every list: surprise and friction kill purchases that intent had already won.
What Cart Abandonment Costs
The recoverable share is enormous. Baymard estimates that large ecommerce sites can lift conversions by 35% through better checkout design alone, worth roughly $260 billion in recoverable orders across the US and Europe, and finds the average top-grossing site has 39 distinct checkout improvements available. Mobile deserves particular attention: mobile carries the majority of ecommerce traffic while posting abandonment rates well above desktop, so a checkout that punishes small screens punishes most of your visitors.
How to Reduce Cart Abandonment
The fixes map directly onto the causes. Show all costs early so the total at checkout is never a surprise. Offer guest checkout and keep forms short; Baymard finds the average checkout carries nearly four more form fields than necessary. Optimize the mobile flow as the primary experience rather than a shrunken copy of desktop. Offer the payment methods your shoppers actually use, including wallets and installment options, and make them visible early. Display trust signals, clear policies, and a progress indicator so shoppers always know where they stand.
Then there is the abandonment cause most CRO checklists miss: fraud screening that turns away real buyers. A shopper whose card is wrongly declined doesn’t retry, they leave, and one in ten checkout abandoners cites a declined card. Treating risk checks as part of the conversion funnel, with real-time error correction and pre-gateway screening instead of blunt post-decline rejections, recovers orders that merchandising fixes never touch. The playbook on keeping fraud prevention from spoiling the customer experience covers this in depth.
How Wyllo Helps
Wyllo attacks the abandonment your fraud stack causes. Wyllo Payment Fraud Protection decides in real time with intent signals rather than blunt rules, prompts legitimate shoppers to fix typos in the moment instead of declining them, and escalates only the true grey area to expert review, so risky-looking-but-real customers complete their purchase instead of becoming false declines.
Frequently Asked Questions
What is a good cart abandonment rate?
The cross-industry average sits around 70%, so beating that is the baseline. Comparisons matter most within your own vertical and device mix; the more useful discipline is tracking your own rate over time and treating movements as signals.
Do abandoned cart emails work?
Recovery emails and retargeting reliably reclaim a slice of abandoned carts, especially when sent quickly with the cart contents shown. They treat the symptom, though: fixing the friction that caused the abandonment prevents the loss instead of chasing it.
Is cart abandonment always a problem to fix?
Not entirely. A large share of abandoners are researchers and comparison shoppers who were never going to buy today. The fixable losses live downstream, which is why checkout abandonment is the number to manage most aggressively.
