What is upselling?
An upsell is a sales technique that encourages a customer to buy a higher-priced, upgraded, or premium version of the product they are already considering. It increases your average order value (AOV) and customer lifetime value without acquiring a new customer. Unlike cross-selling (which offers complementary products), upselling elevates the same product to a more valuable tier.
Upsell vs cross-sell
These two are often confused:
- Upsell: Upgrade the same product. "Want the 256GB iPhone for $100 more?" or "Upgrade to Premium for 20% off."
- Cross-sell: Add a complementary product. "Customers who bought this also bought a case and screen protector."
Both increase AOV. Upsells usually produce a larger per-customer lift; cross-sells get higher acceptance rates.
Famous upsell examples
- McDonald's "Want to make it a medium for 30 cents?": The prototypical upsell. Cheap marginal cost, big AOV lift across billions of orders.
- Amazon "Frequently bought together": Displayed at the product page and cart. Partly upsell (premium variant) and partly cross-sell.
- Airline seat upgrades: Economy Plus, Premium Economy, Business — all timed to appear after the user has committed to booking.
- Slack pricing page: Shows "Business+" and "Enterprise Grid" tiers alongside Pro, nudging teams toward higher-tier commitments.
- Dropbox storage tiers: When free-tier users hit storage limits, the upsell to Plus appears in context — the upgrade moment matches the need.
Where upsells work best in the funnel
- Product page: Show the premium version alongside the standard. Amazon's comparison tables are the canonical example.
- Cart: "Upgrade to express shipping" or "Add gift wrapping."
- Checkout: Harder — post-purchase-intent friction kills conversions. Keep it one tap.
- Post-purchase: Thank-you page upsells for digital add-ons convert well because the user's payment friction is already paid.
- In-product (SaaS): Trigger when a user hits a feature limit on the free plan.
Effect on AOV and LTV
Amazon has publicly attributed roughly 35% of its revenue to upsell and cross-sell recommendations. For SaaS, moving one user from a $29/mo plan to a $79/mo plan adds $600 of annual revenue with essentially zero additional customer acquisition cost.
Two key metrics to track: upsell conversion rate (share of customers who accept the upsell offer) and AOV lift (average order value with vs without the upsell shown).
A/B testing upsell offers
High-value upsell tests include:
- Offer position: Pre-checkout vs at checkout vs post-checkout
- Price framing: Absolute ("$10 more") vs relative ("Only 15% more")
- Comparison format: Side-by-side tier comparison vs a single "recommended" upsell
- Urgency: Limited-time discount on the upgrade vs evergreen
- Social proof: "90% of our customers choose this plan"
Common mistakes
- Upselling before the primary purchase decision. Offering a premium upgrade before the user has committed to buying anything creates confusion and kills conversions.
- Too many upsell offers in a row. Three upsells at checkout equals an abandoned cart.
- Irrelevant upgrades. Upselling a 256GB storage tier to someone who just said "I only need email" breaks trust.
- Hidden costs. Surprise fees shown at checkout are the single biggest cause of cart abandonment.
- No clear downgrade path. If users can't return to the base version without restarting the flow, they'll leave.
Related concepts
Cross-sell, sales funnel, lifetime value, revenue per visitor, latent conversion.
