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
Feature
Checkout Extension: In-Checkout Upsells
Checkout Extensions
Typical impact
+6-9%
Checkout CVR
-14%
Abandoned carts
Plus + Basic
Plan support
No app fees
Recurring cost
Why it matters
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.
Use cases
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.
How it works
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
FAQ
Quick answers.
Do I need Shopify Plus?+
Most 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.
Will Shopify updates break this?+
No. Checkout UI Extensions are Shopify's officially supported extensibility API — they're future-proof by design.
Can I edit the text myself later?+
Yes. All copy lives in theme settings or the admin — no dev needed for text edits.
Related
More in Checkout Extensions
Checkout Extension: Icon with Text
Combine icons with informative text — highlight key benefits visually at checkout.
Checkout Extension: Gift Wrapping
Opt-in gift wrapping with optional message card — a tiny AOV bump with big brand affinity.
Checkout Upsell
Faster site. Higher conversion. More profit.
Unlock Core Web Vitals 90+ and proven CRO patterns across 100+ stores.