Checkout Extension: In-Checkout Upsells
Present last-minute deals at checkout — the highest-intent moment in the buyer journey.
- Ships as a reusable theme block
- No third-party app required
- Works with Shopify OS 2.0
- Deployed on 100+ live stores
Numbers we earn — not invent.
Built to move the metric you actually care about.
Native to Shopify Checkout
Built with Checkout UI Extensions — survives platform updates, no fragile hacks.
Adds without distracting
Appears in the right slot — info blocks, upsells, guarantees — without breaking checkout flow.
Works with One-Page Checkout
Fully compatible with Shopify's newer checkout UX and Shop Pay.
When to reach for this.
Last-chance upsell
Highest-intent moment in the funnel — one extra product at checkout changes your economics.
Trust reinforcement
Guarantees, shipping policies, or testimonials shown where buyers second-guess themselves.
Compliance / disclosure
Age gates, subscription disclosures, regional policies — handled natively.
The build.
Upsell Where It Counts — At Checkout
The final step of the purchase journey holds untapped potential. With In-Checkout Upsells, you present customers with last-minute deals and complementary products that are too good to skip — right before they hit "Pay now".
Why Checkout Upsells Convert
Customers at checkout have already committed to buying. Showing a relevant add-on at this stage converts 8–15× better than homepage upsells. We build this as a native extension — no app fees, no page speed hit.
What You Get
- Product recommendations based on cart contents
- One-click add without leaving checkout
- A/B testable offers and positioning
- Full analytics on upsell revenue
Frequently Asked Questions
Still have questions?
Book a free 30-minute teardown. Live audit of your store, prioritised fix list, no pitch — yours to keep either way.
Book a callMost Checkout UI Extensions work on all Shopify plans. A few customisations (full function modification) require Plus — we'll tell you upfront which category your project falls in.
No. Checkout UI Extensions are Shopify's officially supported extensibility API — they're future-proof by design.
Yes. All copy lives in theme settings or the admin — no dev needed for text edits.
More in Checkout Extensions.
Checkout Extension: Multi-Address Shipping
Ship a single order to multiple addresses — essential for gifting, B2B, and corporate orders.
Checkout Extension: Testimonials
Show social proof at checkout — reduce abandonment with real customer reviews.
Custom Shipping Calculator
Faster site. Higher conversion. More profit.
Unlock Core Web Vitals 90+ and proven CRO patterns across 100+ stores.