Payment icons under the cart checkout button: +7.37% conversion
Test run byDave DiederenSyntra Labs
Commentary byLiftArchiveOur analysis, not theirsAdding payment method icons directly below the checkout button in the cart lifted conversion rate by 7.37% and revenue per visitor by 7.70%. Dave Diederen ran this test. Average order value did not change, so the gain came from more completed orders.
- Conversion rate: +7.37% (2.32% to 2.49%), with a 97.8% probability of beating control. A fairly confident win.
- Revenue per visitor: +7.70% (£2.56 to £2.76), with a range of -2% to +19%. Likely positive, but less certain than conversion.
- Profit per visitor: +6.50% (£1.37 to £1.46). The gain held up after costs.
- Average order value: flagged as no change (£110.45 vs £110.80). Basket size stayed the same.
The change
The variant adds payment method icons directly below the cart checkout button.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
The cart with its checkout button and no payment method logos beneath it.
Variant
The same cart with a row of payment method icons placed directly under the checkout button. The exact logos used were not shown.
Why it likely won
Our reading of the result, not the practitioner's claim.
- in the cart, shoppers start asking whether their preferred way to pay is accepted. Showing the icons answers that before they click.
- familiar payment brands make an unknown checkout feel more predictable, which lowers the sense of risk.
- the change is tiny and adds no extra step, so there was little to offset the reassurance it gave.
Caveats: Sample size, test length and which icons were shown were not shared. The revenue per visitor range includes a small chance of no effect.
Who ran it
Dave Diederen (@DaveDiederen) shared this test on X. The numbers and screenshots are theirs.
View the original post on X
How to run this test on your store
- Hypothesis
- If we place payment method icons directly below the cart checkout button, then more shoppers will start and finish checkout because they know their preferred payment option is accepted.
- Primary metric
- Conversion rate
- Guardrails
- Revenue per visitor
- Average order value
- Cart-to-checkout click rate
- Who should test it
- Stores that accept popular wallets or buy-now-pay-later options, especially with lots of mobile traffic. It may do little if express pay buttons already sit in the cart, since those show payment options anyway.
Questions
Do payment icons in the cart increase conversions?
They did here. Conversion rose 7.37% with a 97.8% probability of beating control, and Dave Diederen says the test has paid off for them repeatedly.
Where should payment icons go in the cart?
Directly under the checkout button. That is the moment shoppers decide whether to continue, so the reassurance lands right where it's needed.
Do payment icons change average order value?
No. AOV was flat at about £110, so the lift came entirely from more people completing their order.
Similar tests
@oliverkenyon@DaveDiederen@DaveDiederen
@kasper_dolk@kasper_dolk@kasper_dolk