Express checkout in the cart drawer: about +$355K a month (est.)
Commentary byLiftArchiveOur analysis, not theirsAdding express checkout buttons to the cart drawer brought Tuckernuck an estimated revenue uplift of about $355K a month.
Domaine, the agency, ran this A/B test for the women's fashion brand, and it was published as a Visually case study.
Before the test, shoppers only saw express payment options once they reached checkout.
- Revenue: about +$355K a month in estimated uplift. This is a projection, not measured revenue.
- Conversion rate, sample size and confidence level were not shared, so the size of the effect can't be checked.
The change
Express payment buttons added to the cart drawer, not just at checkout
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
The cart drawer showed the cart items and a standard checkout button. Express payment options only appeared on the checkout page.
Variant
Express checkout buttons were added inside the cart drawer, so shoppers could pay with a saved wallet without going through the standard checkout first.
Why it likely won
Our reading of the result, not the practitioner's claim.
- Shoppers who already use a digital wallet can pay in one or two taps from the drawer, which skips form filling.
- The drawer is where buying intent peaks, so putting the fastest path to payment there removes a step at the right moment.
- Fewer page loads between cart and payment leaves fewer chances to drop off, especially on mobile.
Caveats: The monthly figure is an estimate, not measured revenue. Vendor-reported as a Visually case study; sample size, test length and statistical significance were not shared.
Who ran it
Domaine ran this test for Tuckernuck and published the results (Visually case study). The numbers are theirs; the summary and commentary on this page are ours.
Read the original case study on Domaine →
How to run this test on your store
- Hypothesis
- If we add express checkout buttons to the cart drawer, then more shoppers will complete a purchase because wallet users can pay without filling in the checkout form.
- Primary metric
- Revenue per visitor
- Guardrails
- Average order value
- Cart drawer to checkout click-through
- Order refund or cancellation rate
- Who should test it
- Stores with a slide-out cart and a large share of mobile or repeat shoppers who use digital wallets. It may do little if most of your customers pay by card or invoice, or if express pay already sits on the product page.
Questions
Should express checkout buttons go in the cart drawer?
In Tuckernuck's test it paid off, with an estimated $355K a month in extra revenue.
It is worth testing if many of your shoppers use wallets like Apple Pay or Shop Pay.
Can express pay buttons in the cart lower order value?
They can, because shoppers skip upsells shown later in checkout.
Watch average order value as a guardrail when you test this.
Is an estimated monthly uplift reliable?
It is a projection based on the test result, not measured revenue.
Treat it as a rough guide to scale.
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