Checkout abandonment is when a user starts the checkout flow — typically by clicking "Proceed to Checkout" from a cart page — but leaves without completing the purchase. It differs from cart abandonment, which occurs before checkout begins. Because the user has already committed to the checkout process, their purchase intent is higher, making checkout abandonment particularly costly.
The average checkout abandonment rate across industries is approximately 70%, though it varies by device (mobile is significantly higher) and vertical (travel and financial services consistently see the highest rates).
Common Causes
Friction in the form
- Too many required fields
- Forced account creation before purchase
- No guest checkout option
- Confusing multi-step navigation
Unexpected costs
- Shipping fees revealed only at the payment step
- Taxes calculated late in the flow
- No price summary visible throughout checkout
Trust and security concerns
- No SSL indicator in the browser or checkout form
- Unfamiliar payment processor
- Unclear return or refund policy
- Missing payment logos (Visa, Mastercard, PayPal)
Technical and UX issues
- Slow page loads between checkout steps
- Form errors that clear previously entered data
- Poor mobile keyboard handling for card number entry
- No progress indicator showing how many steps remain
How to Reduce Checkout Abandonment
The highest-impact interventions:
- Enable guest checkout — Requiring account creation is consistently among the top reasons users abandon; remove the requirement entirely or offer "continue as guest" prominently
- Show total cost early — Display estimated shipping and taxes on the cart page, before checkout begins
- Add a progress indicator — A simple "Step 2 of 3" bar reduces anxiety and sets expectations
- Optimize for mobile — Use large tap targets, autofill attributes on form fields, and a numeric keypad for card entry
- Add trust signals at payment — SSL badge, accepted payment icons, and a one-line return guarantee near the submit button
Measuring Checkout Abandonment
Track it as a conversion funnel in analytics:
Cart page view → Checkout started → Payment info entered → Order confirmed
Calculate the abandonment rate at each step to identify where the drop-off is worst. The step with the highest exit rate is the highest-priority optimization target.
A/B testing on checkout flows requires care — changes to payment steps can affect fraud rates and revenue per conversion, not just completion rate. Monitor all downstream metrics when running checkout tests.