Should my free shipping threshold be above or below my average order value?
A threshold only changes behaviour if it sits in the right place against what customers already spend, and this example shows the profit effect of nudging an order upward.
You know your average order value, perhaps Rs 450. You are thinking of offering free shipping above Rs 599. Does the threshold sit in a smart place? The answer depends on a trade-off that is easy to miss: the extra goods a customer adds must earn more than the shipping you give away.
The setup
Use illustrative numbers.
- Average order value: Rs 450
- Contribution margin before shipping: 40 percent
- Shipping cost to you: Rs 70
- Free shipping threshold: Rs 599
What a nudged order really earns
A customer at Rs 450 sees the threshold and adds Rs 149 of goods to reach Rs 599. Those extra goods carry a contribution of 0.4 times 149, which is Rs 59.60.
Now compare two worlds for that customer.
World one, no free shipping offer: the customer pays Rs 70 delivery on a Rs 450 order. Your contribution is 0.4 times 450, which is Rs 180, and the customer's delivery payment covers the courier.
World two, the threshold works: the order is Rs 599 with free delivery. Contribution is 0.4 times 599, which is Rs 239.60, minus Rs 70 for shipping, leaving Rs 169.60.
You earn Rs 169.60 instead of Rs 180. The nudge cost you Rs 10.40 per customer, even though the order got bigger. The extra Rs 59.60 of margin did not cover the Rs 70 you stopped collecting.
When the threshold still makes sense
This does not mean thresholds are bad. It means the benefit has to come from somewhere other than the extra goods alone:
- Customers who would have abandoned the cart because of a delivery fee now complete the order. A lost sale earns nothing, so Rs 169.60 beats zero.
- Shoppers buy more than the minimum, not exactly Rs 149 extra.
- Free delivery lifts repeat purchase, which shows up over months rather than in one order.
I have no data on how your customers behave, so treat these as hypotheses to test, not facts. Track how many orders land just above the threshold and whether cart abandonment shifts.
Placing the threshold relative to AOV
A threshold below your average gives free shipping to most customers, costing you on every order. A threshold far above your average is rarely reached, so it neither wins sales nor changes behaviour. A threshold modestly above the average gives some customers a reachable goal.
But modest is relative to your price points. If your products cost Rs 150 each, adding one more item is an easy step. If your items cost Rs 800, a threshold Rs 149 above the average will not nudge anyone.
Do the floor calculation first
Before choosing an attractive-looking number, make sure it is not below the break-even floor for your margin. Our post on setting a threshold from your margin shows how to find it. The how-to on changing the free shipping threshold covers entering it in your store.
Complement it with smarter prompts
A threshold works better with a visible reminder and a few small add-on products priced to fill the gap. For ideas on pricing add-ons psychologically, see price anchoring.
Takeaway
Do not set the threshold only by gut. Compare the contribution of the larger order, minus the shipping you absorb, with what you would earn from the smaller order. If the result is lower, the threshold must win customers who would otherwise leave, or it is just a discount in disguise.