What a Threshold Is Meant to Do

A free-shipping threshold changes the customer’s decision from “Should I pay for delivery?” to “Is adding one more item worth reaching free delivery?” For a dropshipping gadget store, that can turn a single-item order into a larger basket. For illustration only, a customer with $28 in products may add a $10 accessory to cross a $35 threshold. The merchant then absorbs delivery on the larger order, rather than absorbing it on every order or charging the customer separately.

The threshold is meant to offset delivery cost through additional order value and gross profit, not to make shipping disappear economically. Check the complete order economics: product cost, delivery cost, payment costs, GST treatment where relevant, advertising and expected returns. A paid-shipping policy is appropriate when protecting margin on small baskets matters most. Unconditional free delivery is appropriate when removing delivery friction on every order is the priority and the margin model can absorb it. A threshold sits between those choices: it preserves a shipping charge below the cutoff while offering a clear reason to increase basket size. ORVX can show product and collection profitability, contribution after advertising, and return impact so the policy is judged on profit rather than revenue alone.

What each shipping measure is designed to change
MeasureCustomer decisionMerchant trade-offUse it when
Paid shippingWhether the item is worth the delivery chargeProtects small-order economics but may add purchase frictionSmall baskets are costly to fulfil
Free shipping thresholdWhether to add items to reach the cutoffAbsorbs delivery above the cutoff while seeking a larger basketYou want to encourage higher order value
Unconditional free deliveryWhether to buy without a delivery chargeMerchant absorbs delivery on every qualifying orderRemoving checkout friction is the main priority

Finding the Lowest Safe Threshold

Set the threshold from delivered-order economics, not an AOV or growth target. Start with product margin, then subtract payment fees, fulfilment, expected refund cost and the shipping amount you will subsidise. If your prices include GST, convert them consistently before calculating; Singapore’s current GST rate is 9% (Inland Revenue Authority of Singapore).

Worked example with sample numbers

This example is illustrative. It uses sample numbers for a dropshipping gadgets store selling in Singapore. 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
S$32.33S$13.63S$6.9521.5%
S$43.11S$18.31S$11.6327.0%
S$64.67S$27.66S$20.9732.4%
S$86.22S$37.00S$30.3235.2%

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

Compare Threshold Methods Before Choosing One

An order-value threshold is the simplest rule: offer free shipping once the cart reaches S$X. It suits stores with a fairly consistent product mix and similar margins across orders. It is easy to display on product pages and in the cart, and customers understand it immediately. The weakness is that the same cart value can produce very different profit. A S$60 order of a high-margin phone stand is not economically equivalent to a S$60 order of a low-margin power bank with higher fulfilment, refund or replacement exposure.

An item-count threshold offers free shipping after, for example, three gadgets. Use it when products have broadly similar shipping requirements and you want to encourage multi-item baskets without steering customers toward a particular price point. It becomes unreliable when a compact accessory and a heavier or more expensive gadget count equally. Two items may generate very different product margin and delivery cost, so item count alone should not determine eligibility.

A contribution-based rule tests whether the specific order leaves enough money after variable costs. Set free shipping only when contribution after product cost, payment fees, advertising and delivery-related costs stays above your required floor. This is the most useful measure when your catalogue contains wide differences in margin, fulfilment cost or return behaviour. It may require a more complex cart rule or manual product grouping, but it protects against profitable-looking baskets that are loss-making after delivery.

Many stores use order value as the customer-facing rule, then check it against contribution by product and collection. ORVX can show realised revenue from delivered orders only, product-level profitability and contribution after advertising, helping identify where a single threshold needs exclusions or separate bands. For a quick starting point, test the assumptions in the product pricing calculator before choosing the rule.

When each free-shipping method is useful
MethodUseful whenMain risk
Order valueThe product mix and margins are relatively consistentA high-value cart can still have weak margin
Item countProducts have similar size, weight and economicsEach item counts equally despite different costs
Contribution-basedMargins, delivery costs or return behaviour vary widelyHarder to explain and configure at checkout

Items That Lift the Basket

The right threshold add-on is complementary, compact and profitable. For a gadget store, that could mean a USB-C cable alongside a charger, a screen protector with a phone accessory, or spare earbud tips with wireless earbuds. The item should solve a related problem rather than feel like an unrelated upsell. If a customer is S$12 short and a S$15 cable closes the gap, the offer is useful only if its added contribution covers its product, fulfilment and expected return costs.

Use contribution, not selling price, to screen candidates. For illustration only, a S$15 accessory might leave S$6 after product cost and advertising, then require S$2 of extra packing and delivery handling. It adds S$4 before any return impact, so it can be a sensible threshold item. ORVX reports contribution after advertising by product and collection, alongside return rate and refund value, so you can compare that accessory with the products customers usually buy before reaching the threshold.

Exclude products that make the order harder to deliver or unwind. Fragile gadgets, batteries with carrier restrictions, oversized items, incompatible accessories and products with frequent fit or quality complaints can turn a free-shipping order into a loss. Very cheap items can also fail: a S$3 add-on that requires separate handling may contribute less than the cost it creates. Review product-level profitability and remaining stock value before featuring an item, then test complementary products with low shipping and return complexity. The product pricing calculator can help check the arithmetic.

How to Read the Worked Example

Read the worked example from the inputs to the decision, rather than treating the final threshold as a target AOV. Start by checking whether the selling price is GST-inclusive, then identify the product cost, payment fee, fulfilment cost, expected refund or return cost and any advertising cost assigned to the order. Singapore’s current GST rate is 9%, according to the Inland Revenue Authority of Singapore/basics-of-gst/current-gst-rates). Keep every input on the same basis: a GST-inclusive selling price should not be compared with GST-exclusive costs without adjustment (Source: Inland Revenue Authority of Singapore).

The safe-threshold output is the lowest cart value at which a delivered order still retains the required contribution after free-shipping cost and the other listed deductions. It is a guardrail, not a forecast that customers will add items or that conversion will improve. A lower threshold may reduce delivery friction and support conversion, but it can make the store subsidise shipping on more orders. A higher threshold may protect contribution per order, while fewer customers reach free delivery. Use the threshold alongside observed conversion, subsidy and contribution results; do not choose it from the threshold alone. You can test the arithmetic in the product pricing calculator.

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.