Quick answer: Cart abandonment usually increases because something in the buying journey changed: added checkout friction, unexpected shipping costs, a mobile usability issue, weaker trust signals, slow checkout performance, or a drop in traffic quality. Before redesigning anything, find what changed and where customers are dropping off.
Some cart abandonment is completely normal. Across ecommerce, the average documented cart abandonment rate sits around 70%, according to Baymard Institute. So the goal was never zero. What matters is whether your rate is climbing above its own baseline.
Cart abandonment usually increases because something in the buying journey has changed. It could be checkout friction, unexpected costs, mobile usability issues, trust concerns, or even a shift in traffic quality.
When store owners notice abandonment rates rising, the first instinct is often to redesign the checkout or blame the traffic source. I've found that the real reason is usually much simpler.
Before making any changes, here are the six things I check first:
- Recent changes to the store
- Shipping costs and delivery expectations
- Mobile checkout usability
- Trust signals near checkout
- Checkout performance and speed
- Traffic quality and buying intent
1. Has Something Changed Recently?
This is always my first question.
Many abandonment spikes begin after a seemingly harmless change.
I've seen increases happen after:
- Theme updates
- New apps
- Checkout modifications
- Shipping policy changes
- Payment gateway updates
Store owners often focus on what's happening today while the cause was introduced weeks earlier. Before investigating anything else, I create a timeline of recent changes and line it up against the date the abandonment rate started to climb.
2. Are Shipping Costs Showing Up Too Late?
One thing I keep noticing is that store owners underestimate how sensitive customers are to unexpected costs.
This isn't a minor factor. In Baymard Institute's research, roughly 39% of shoppers abandon a cart specifically because of unexpected extra costs like shipping, taxes, or fees, making it one of the most common reasons people leave.
I've seen brands spend weeks optimizing checkout design when the real issue was shipping costs appearing too late in the journey.
A customer may love the product, add it to cart, and still leave when the final price feels different from what they expected.
What I check:
- Shipping transparency
- Delivery estimates
- International fees
- Taxes displayed at checkout
3. Is the Checkout Easy to Use on Mobile?
Most ecommerce traffic comes from mobile devices.
Yet many checkout reviews still happen on desktop.
That gap matters: mobile abandonment consistently runs higher than desktop, so a small mobile usability issue scales into a large revenue leak.
I've audited stores where checkout felt perfectly acceptable on a laptop but frustrating on a phone.
A small usability issue can become a major conversion problem on mobile.
What I check:
- Form field usability
- Autofill support
- Button placement
- Mobile payment options
Typical customer journey:
If customers are dropping off, I identify exactly where in this journey the exits are happening.
4. Can Customers Find Trust Signals Near Checkout?
Trust becomes more important as customers get closer to payment.
Someone browsing products is evaluating the offer.
Someone entering payment details is evaluating the risk.
I've seen stores lose conversions because customers couldn't quickly find basic information.
What I check:
- Return policy visibility
- Security indicators
- Reviews and testimonials
- Contact information
5. Is the Checkout Slow Instead of Broken?
Sometimes checkout isn't broken.
It's just slow.
Customers rarely describe this as a performance issue. They simply leave.
One thing I've noticed is that store owners often focus on homepage speed while ignoring checkout responsiveness, yet that's the exact moment a shopper has already decided to buy. Even a couple of seconds of lag in checkout speed can quietly undo the entire journey.
And when the checkout flow itself is the bottleneck, not just the load time, a focused checkout upgrade usually moves the number more than any homepage tweak.
What I check:
- Checkout loading delays
- Cart drawer responsiveness
- Payment processing speed
- Third-party checkout scripts
| What Store Owners See | What Customers Experience |
|---|---|
| Checkout loads | Checkout feels slow |
| Payment option available | Payment takes too long |
| Cart updates | Customer gets impatient |
6. Is It Really a Traffic Quality Problem?
Sometimes checkout isn't the problem at all.
The traffic is.
This is more common than it sounds. Baymard Institute found that about 43% of shoppers who abandon were simply browsing and never intended to buy on that visit, which means a large share of "abandonment" was never a checkout problem to begin with.
I've seen campaigns generate large amounts of visitors who browse products, add items to cart, and leave because they never had strong buying intent.
This creates a checkout problem that isn't actually a checkout problem.
What I check:
- Traffic source changes
- Campaign targeting
- Audience quality
- Conversion intent
Final Thoughts
A rising cart abandonment rate is usually a symptom, not the root problem.
The mistake I see most often is fixing the checkout before understanding what changed.
When abandonment starts increasing, I focus on identifying the cause before recommending solutions.
Most of the time, the answer becomes visible much faster than store owners expect.
If abandonment rates are increasing, I'd start by reviewing recent changes and following the customer journey step by step. That's usually where the most valuable insights appear.
If you'd like a second set of eyes, you can book a website audit and strategy session, or grab a free homepage audit to see where your store is leaking conversions.
Frequently Asked Questions
What is a good cart abandonment rate?
The average cart abandonment rate across ecommerce is around 70% (Baymard Institute), and it varies by industry and device. Mobile is typically higher than desktop. Rather than chasing a universal benchmark, the metric that matters most is whether your rate is increasing compared to your own historical performance.
Why did my cart abandonment rate suddenly increase?
A sudden increase almost always traces back to a recent change: a theme update, a new app, a checkout or shipping change, or a shift in traffic source. Build a timeline of what changed and compare it to when the rate started climbing.
Why do customers abandon carts?
Common reasons include unexpected costs (the most frequent), checkout friction, trust concerns, slow performance, and low purchase intent. Around 39% of shoppers abandon because of surprise shipping, taxes, or fees alone.
Does checkout speed affect conversions?
Yes. Delays during checkout can increase abandonment and reduce completed purchases, especially on mobile devices where shoppers are least patient.
How do I reduce cart abandonment?
Show shipping and total costs early, simplify and speed up the mobile checkout, place trust signals near payment, and make sure recent store changes haven't introduced friction. Find where customers exit, then fix that specific step rather than redesigning everything.
