What the Threshold Is Meant to Do

A free-shipping threshold is a trade: the store absorbs delivery cost in exchange for encouraging a larger basket. The customer sees a simple offer, such as “free US shipping on orders over $X.” The business should see a margin decision: does the extra product profit created by reaching $X cover the delivery cost, while leaving an acceptable contribution after other variable costs?

For illustration only, if a customer adds an $18 graphic tee that carries $8 in product cost, the added gross profit is $10. If that order qualifies for a $7 shipping subsidy, only $3 remains before payment fees, returns and other costs. The threshold is doing its job only if enough qualifying orders create that kind of incremental profit, rather than merely shifting shipping expense from the customer to the store.

That distinction matters when comparing offers. The displayed threshold is a conversion and basket-size tool; the underlying threshold is the minimum order value your economics can support. They may match, but they should not be treated as the same decision. A streetwear store can present one clear customer offer while evaluating its financial safety from delivered-order revenue, product cost and contribution.

Find the Lowest Safe Threshold

Set the threshold by solving the margin equation, not by rounding an average-order-value target. Start with a delivered order’s net merchandise revenue after discounts and before tax, the variable product-cost rate, and the per-order costs the store will absorb: pick-and-pack, packaging, and carrier delivery. Add payment fees if they belong in your contribution definition. Exclude costs the customer still pays.

For a percentage floor, use: minimum threshold = absorbed per-order cost ÷ (1 − variable-cost rate − contribution-margin floor). The denominator must be positive. If your floor is a dollar contribution amount instead, use: minimum threshold = (absorbed per-order cost + dollar floor) ÷ (1 − variable-cost rate). Base delivery cost on the actual US zone and product mix eligible for free shipping; heavy or remote orders can otherwise make the threshold unsafe.

Validate the inputs against delivered orders rather than booked sales. ORVX calculates realized revenue from delivered orders only, computes product costs and contribution margins, and reports returns and refund value against revenue. Keep the calculation in the store’s trading currency, then round the result up to a customer-facing threshold.

Worked example with sample numbers

This example is illustrative. It uses sample numbers for a streetwear store selling in the US. They are made up to show the method, they are not a benchmark, and your own figures will differ.

Formula: Lowest safe basket = (delivery + packing + fixed fee) / (gross margin rate - percentage fee - minimum margin you will accept).

Sample numbers: free delivery at different basket sizes
Basket without taxMargin before deliveryAfter absorbing deliveryShare of basket
$47.99$28.36$22.8847.7%
$63.99$37.91$32.4350.7%
$95.98$57.01$51.5353.7%
$127.98$76.12$70.6455.2%

Run the same sum with your own numbers in the free calculator, or browse guides for sellers in the US and more streetwear guides.

General information only: tax, duty and import rules change and depend on your situation, so check with an accountant or the official source before acting.

Eligible Shopify stores can see these numbers for their own store through the Founding 10,000 offer.

Choose the Measure That Fits the Decision

Use contribution margin when the decision is whether an order remains economically sound after the threshold. Define it consistently: net merchandise revenue minus product cost, payment fees, fulfilment and shipping absorbed, and, if relevant, advertising. This measure fits stores with varied product costs or acquisition costs, because, in your own numbers, a higher-value order may contribute less than a lower-value order if its garments are less profitable. ORVX can report contribution after advertising by product and collection, helping identify which baskets can support free delivery.

Use order value when the decision is behavioural: where to place the threshold to encourage customers to add another item. It is easy to communicate and useful for comparing the threshold with typical delivered-order values, but it does not show whether the added products cover their costs. Treat it as a basket-size signal, not a profitability test.

Use shipping-cost coverage when delivery expense is the constraint. Compare the shipping amount the store absorbs with the contribution generated by qualifying orders, or with shipping revenue below the threshold. This is appropriate when carrier zones, package sizes or destination mix vary materially. For a blended decision, use order value to frame the offer, then validate it with contribution and shipping coverage.

Use Add-Ons That Lift the Basket

Build the path to free shipping around products customers already associate with the main purchase. A hoodie can suggest a cap, beanie or socks; a graphic tee can suggest another tee, tote or low-cost accessory. Use price bands to match the remaining gap: if the cart is $82 and the threshold is $100, show items near $18-$25 rather than a $60 jacket. The add-on should contribute profit after product cost, payment fees and the absorbed shipping cost, not merely increase revenue. Check the economics with a product pricing calculator.

Bundles can make the choice easier without discounting: pair a tee and cap at their existing combined prices, or group a hoodie with a matching accessory and describe the use case. A cart prompt should state the gap and show two or three relevant options, such as “$18 away, add a cap or socks.” Compare recommendations by contribution per added dollar, not attachment rate alone. Product- and collection-level profitability identifies which accessories can safely support the threshold; exclude items with weak margin, high return rates or unreliable stock.

Read the Worked Example

Read the computed example as a decision calculation, not as a universal streetwear threshold. Start with its inputs: the qualifying basket value, net merchandise revenue, product cost, advertising cost, and the delivery cost the store absorbs. The threshold is the basket value at which the order still meets the chosen contribution-margin requirement after those deductions. Check the result in two ways: first, the contribution dollars left after free shipping; second, that amount as a percentage of net merchandise revenue. A threshold can look attractive while leaving too little profit per order.

Then read the sensitivity notes. If carrier rates, package weight, product mix, ad cost or returns change, the same threshold may produce a different margin. A heavier hoodie order can cost more to deliver than a small accessories order; a discount can also reduce revenue while delivery cost stays unchanged. Treat the example’s threshold as safe only for orders resembling its inputs. Recalculate before extending the offer to new products, destinations or promotional periods. For your own figures, the free calculator can help test the arithmetic.

Measure the Result and Adjust It

Review orders below, just above and well above the threshold over the same period. Use delivered orders and contribution margin after delivery, then compare basket behaviour, not revenue alone. The figures below are an illustrative readout; replace them with your store’s realised results.

Hold the threshold when just-above-threshold orders add enough merchandise margin to absorb delivery and show a healthy increase in units or add-ons. Lower it when qualifying orders are scarce, the typical qualifying basket barely exceeds the threshold, or contribution margin falls below non-qualifying orders. Raise it only when most qualifying orders would have qualified anyway, their contribution margin remains strong, and a higher threshold is tested without materially reducing completed baskets. Check returns separately before acting.

Illustrative threshold-order comparison
Order groupNet basketDelivery costContribution after deliveryBasket behaviour
Below threshold$58$4.00 paid by customer$181.6 items; few add-ons
Just above threshold$76$8.50 absorbed$242.3 items; cap often added
Well above threshold$110$10.20 absorbed$423.1 items; multiple add-ons

A workable free-shipping threshold is the lowest order value at which delivery cost fits the store’s margin model while the offer gives customers a clear reason to add another item. Recheck the calculation when shipping charges, product mix or fulfilment costs change, and judge the offer by contribution margin rather than order value alone.

Sources

How this page was made: drafted with AI from a brief, then checked by automated rules for arithmetic, sources and duplication. The sample numbers were calculated, not reported.