A one-page checkout puts contact, shipping and payment details on a single screen, while a multi-step checkout splits them across several.
Neither format reliably wins. Baymard's usability research and the checkout tests in our database point the same way: how many fields, decisions and surprises a shopper meets matters more than how many pages those fields sit on.
Below is what the format debate looks like once you set it against real A/B test results, plus how to run the test on your own store.
For the wider topic, see our checkout flow guide.
What a single page checkout is (and what it is not)
A single page checkout shows every input the order needs on one URL.
The shopper scrolls instead of clicking "Continue" between pages.
Some versions load the whole form at once.
Others use an accordion, where each section opens after the one before it is done.
The accordion style is still one page technically, but to the shopper it behaves a lot like a multi-step flow.
Baymard's 2023 accordion checkout research found that completed sections should collapse into a summary of what was entered.
When they show only a header like "Shipping Address," users have to reopen sections to check their details.
The same research notes that users expect the browser Back button to return to the previous step, not throw them out of checkout.
A multi-step checkout is the classic sequence: information, then shipping, then payment, sometimes with a review page at the end.
Shopify's old default was a three-page flow of this kind.
Express wallets such as Shop Pay, Apple Pay and PayPal are a third option that sidesteps the debate.
The shopper skips most of the form entirely.
More on that below, and in our payment icons and express checkout collection.
Why one page became the platform default
On October 2, 2023, Shopify announced that one-page checkout was now its default, describing it as "optimized for speed and conversion." The announcement gave no conversion figures.
On November 16, 2023, Shopify let merchants on the Basic, Shopify and Advanced plans choose between one-page (default) and three-page checkout in the theme editor.
That choice is what makes the comparison testable for many stores.
Our Shopify checkout customization guide covers what else you can change.
One page vs multi step checkout: what the evidence shows
The most useful starting point is an old but still accurate Baymard article, "One Page Checkouts – the Holy Grail of Checkout Usability?" (April 2011).
In its testing, users "in general had relatively few problems navigating between multiple steps."
The problems came from what each step asked them to do.
Baymard also points out a flaw in many published wins for one-page checkout.
They often compare a poorly built multi-step checkout with a newly optimized one-page version.
That tells you the new checkout is better, not that one page is better.
Baymard expects an optimized three-step checkout with the same fields to perform about the same as a one-page version.
Shopper surveys back up the focus on content over layout.
In Baymard's cart abandonment research, 17% of US shoppers who abandoned during checkout blamed a "too long / complicated checkout process."
Far more, 40%, blamed extra costs that were too high.
Baymard also found that the average US checkout shows 14.88 form fields by default, against an ideal of about 7-8.
What our database shows
A note on reading these results: most checkout case studies report one headline number and leave out sample size and significance.
Treat each as a direction worth testing on your own traffic, not a lift you can expect.
Our database has no clean, isolated "one page vs three pages, same fields" checkout test.
That gap is telling in itself: when teams change checkout structure, they almost always change other things at the same time.
The tests we do have fall into three groups.
Merging or removing steps often helped. GANNI combined a separate email step with the information step, and the case study's summary lists +10% for the checkout funnel.
Ashley Furniture, in a test run by AB Tasty, moved address entry out of the purchase funnel for logged-in users without a saved address and saw +15% conversions.
Improving a step, without removing it, also helped. ReplaceDirect kept its multi-step checkout but added an order overview to step 2, swapped in benefits relevant to that step and cut non-essential fields.
Cart abandonment fell 25% and sales rose 12%.
DRIP Agency simplified KoRo's shipping form and login section and lifted that checkout step's rate from 87.16% to 88.41% (+1.4%).
Sometimes more steps won. Nitro added a confirmation step and more security content for buyers in India, Europe and the Middle East, and conversion rose in those regions.
North American buyers converted better with fewer steps.
HomEquity Bank split a one-page inquiry form into seven steps and saw +154% conversion rate, though that is a lead form for Canadians 55+, not a store checkout.
The reverse also shows up in apps. Stompers tested a multi-page paywall against a single page, and the single page converted over 16% better, with more yearly trials.
Price levels also varied in that test, so it is not a pure format result.
DRIP Agency
Blend CommerceSide by side
| Factor | One-page checkout | Multi-step checkout |
|---|---|---|
| Perceived effort | Everything is visible, which can look long on mobile | Each screen looks short, but the total length is hidden |
| Error handling | Errors can sit far from the field the user is looking at | Errors are caught step by step, close to the input |
| Abandonment data | One page, so you see less about where people drop | Step-level funnel shows which step loses people |
| Partial data capture | Email may be entered alongside everything else | Email captured early, which enables abandoned-checkout emails |
| Trust and reassurance | Less room for reassurance near each decision | Room to add an order summary or security content per step, as ReplaceDirect and Nitro did |
| Best fit | Small orders, returning or wallet-heavy shoppers | High-ticket, complex or regulated orders, and audiences that want confirmation |
When each format is the wrong choice
A one-page checkout is a poor fit when the order needs real decisions: delivery slots, installation options, B2B purchase order details or several shipping addresses.
Packing all of that onto one screen makes the page look like work.
A multi-step checkout is a poor fit when most shoppers buy one low-priced item and would finish in under a minute.
Every extra page load is a chance to drop off, especially on slow mobile connections. Our mobile checkout guide covers that side.
And neither format fixes a problem that sits elsewhere.
If shoppers leave because shipping costs appear late or account creation is forced, moving fields between pages will not help.
Our guest checkout page covers the account question.
Express checkout skips the question
For many stores the biggest gain in our database came from letting shoppers skip the form.
Blend Commerce added a Shop Pay button to Fame's cart drawer and measured +47.75% conversion rate.
If you are debating one page versus three, test wallet buttons in the cart first: they often remove more effort than any layout change.
How to test one-page vs multi-step checkout on your store
- Find where people drop. If you run a multi-step checkout, check step-to-step completion. A sharp drop at shipping points to cost surprises, not the number of pages.
- Keep the fields identical. Test format alone first: same fields, same copy, same payment options. If you also cut fields, you will not know which change caused the result.
- Pick a revenue metric. Watch average order value too, since a shorter checkout can trim add-on choices such as gift wrap or protection plans. Use orders per visitor or revenue per visitor from checkout start, not clicks on "Continue." A layout that moves people faster through step 1 can still lose more at payment.
- Split by device and region. Nitro's result shows audiences can react in opposite ways to the same extra step.
- Plan for enough orders. Checkout tests sit at the bottom of the funnel, so traffic is small. Small differences such as KoRo's +1.4% need a large sample to detect; decide your minimum effect before launch.
- Then cut friction. Once format is settled, remove optional fields and repeated questions. DRIP Agency's KoRo tests and ReplaceDirect's step 2 rebuild show where the steady wins come from.
On Shopify, the theme editor switch makes step 2 straightforward, though your testing tool has to split traffic between the two settings.
You can browse more checkout results in the full test database or start from the CRO hub.