White paper · Gift with purchase

The Reciprocity Premium

Can a free gift break the discount habit?

Are you teaching your customers never to pay full price?

We analysed 16.8 million Shopify orders to see when a free gift beats a discount, when it doesn't, and how big the effect really is. The answers are less flattering than most gift-with-purchase marketing, and more useful.

45%
Larger: the median gifted basket compared with the same store's ungifted baskets
August 2026 · about 2,400 stores · observed, not caused
+1.2 pts
Store-wide AOV change for stores that started gifting, above stores that did not
28 days after vs before · indicative
42%
Spend thresholds set below the store's ordinary basket
About four in ten cart-value rules
16.8M
Shopify orders analysed
About 12,000 stores · August 2026
Key findings

What 16.8 million orders show

1. Gifted baskets are much bigger. That isn't what the gift did.

In the median store, orders that picked up a gift were 45% larger than its other orders. But a spend threshold only lets large baskets in, so much of that gap exists by design. When we tracked stores that started gifting, their overall average order value rose about 1.2 points more than stores that didn't. That is the number to plan around.

Store-wide AOV change after stores started gifting
Median change in a store's overall average order value, 28 days after its first gifted order against the 28 days before. Lines show 95% intervals. Observational.
Stores that did not gift
+1.1%
Stores that started gifting
+2.3%
…gift on under 20% of orders
+1.6%
…gift on 20% or more of orders
+5.1%
0%2%4%6%8%

2. Thresholds below the ordinary basket give gifts away

Four in ten spend thresholds were set below the store's ordinary basket. Below half the ordinary basket, 28% of orders got a free gift and those baskets were only 8% bigger: gifts for orders that were already that size. Higher thresholds show bigger gaps, mostly because they only admit bigger orders, while the share of orders reaching the gift held in a narrow 12–16% band up to twice the ordinary basket.

Threshold height, basket gap and reach
Cart-value rules, August 2026, grouped by threshold as a multiple of the store's ungifted average order. Middle: median gap between gifted and ungifted baskets. Right: share of the store's orders carrying the gift. Highlighted: thresholds below half the ordinary basket.
Threshold
Median basket gap
Orders with the gift
<0.5×
+8%
28.4%
0.5–0.8×
+29%
14.5%
0.8–1×
+50%
12.8%
1–1.25×
+73%
15.8%
1.25–1.5×
+99%
15.9%
1.5–2×
+132%
12.2%
2–3×
+208%
8.7%
>3×
+380%
5.0%

3. Bigger gifts didn't buy bigger baskets

Among comparable thresholds, gifts worth up to half the spend bar showed similar gaps, and gifts worth more than half showed smaller ones. Retail value isn't what a gift costs you, so look for something that feels generous and costs little, and show its normal price.

4. Discounts still sell more

The strongest study on the question (Foubert and colleagues, 2018) found free gifts lift purchases less than an equivalent price cut. Gifts can still win on profit because they cost less, and they suit treats more than refills. The paper sets out when to use each, with a worked break-even example: at a 50% margin, 10% off needs a quarter more orders just to stand still.

Free white paper

Get the full paper

An 11-page PDF for Shopify merchants and anyone who advises them. Inside:

  • Why a sitewide discount needs 25% more orders to stand still, and what a gift has to do to pay for itself
  • The research on reciprocity, “free” and the goal gradient, and the studies that point the other way
  • What 16.8 million orders show about thresholds, gift size, choice menus and tiers
  • When a discount wins, when a gift wins, and where gifting fails
  • A worked break-even example and a six-step test plan for your own store

Written by 506, which makes EasyGift, the Shopify app whose anonymised order data the paper analyses. No store, merchant or customer is identified.

How we handle your details: 506.io/legal

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