Joshua Franklin Wiedeman

Free Shipping Threshold

A free shipping threshold is the order value a customer must reach to get free shipping. “Free shipping on orders over $50” is the usual form. Unexpected extra costs, including shipping, are a leading reason shoppers abandon carts in Baymard Institute’s checkout research. A threshold also gives customers a reason to add one more item.

How it works

Paying $7 shipping on a $35 order feels like paying for nothing. Adding a $15 item to reach $50 and get free shipping feels like a win, even though the customer spends more. The gap between the cart total and the threshold also prompts “What else can I add?”, which leads shoppers to browse more of the catalog.

How to do it

  1. Plot the distribution of order values for the last 90 days and find the median.
  2. Set a starting threshold a little above the median, close enough that one more item reaches it.
  3. Model the economics: extra order value per qualifying order minus the shipping cost you absorb. Check that your margins cover it.
  4. Show the threshold site-wide and add a progress message in the cart: “You are $12 away from free shipping.”
  5. Suggest add-on products priced to close the gap when a customer is close.
  6. Test two or three threshold levels with separate customer groups. Pick the one with the highest revenue per visitor.

What to measure

  • Threshold reach rate: orders at or above the threshold divided by all orders.
  • AOV lift: average order value after launch compared with the prior period or a control group.
  • Cart abandonment rate: carts started minus orders completed, divided by carts started, before and after launch.

Best practices

  • Keep a paid shipping option below the threshold. Some customers only want one item.
  • Test the threshold against flat-rate shipping and free shipping on everything. If AOV is already high, building shipping into prices may work better.
  • Adjust the threshold by season. Raise it when people already spend more. Lower it in slow periods.

Common pitfalls

  • Setting the threshold too high. If most customers would need several more items to reach it, it motivates no one.
  • Ignoring returns. Filler items added to hit the threshold may come back. Track their return rate separately.
  • Revealing the threshold only at checkout. Show it on the homepage, product pages, and site header so customers can plan.