Bundle pricing strategy: how deep should the discount go?
Deep enough to change behavior, never deeper than the margin the added item brings in. For most stores that lands between 10 and 20 percent off the combined price. Some bundle types need more, and convenience bundles earn full price with no discount at all. The margin math, type by type, is below.
Cut too shallow and nothing changes. Cut too deep and the bundle sells at a loss and calls it growth. The right depth is a margin calculation, and it takes five minutes.
Why does margin set the floor on every bundle discount?
Because the discount comes out of the added item's margin, that margin is the deepest the discount can ever go. Above the line is strategy. Below it is loss.
Run the math on one pair. Say your store sells a $40 serum, and you want a $25 moisturizer to join the order. The moisturizer costs you $12, so the attach brings $13 of margin. Price the pair at 15% off and the discount costs $9.75, leaving $3.25 of new profit plus everything the serum earns. Push to 25% and the discount costs $16.25, $3.25 more than the moisturizer brings in: every bundled order now pays shoppers to take the second product.
One habit keeps this honest: take the whole discount from the attach, never the anchor. The moisturizer is what the discount is buying.
Fixed price or percent off: which one should you use?
Fixed price when one bundle needs a clean number to anchor on. Percent off when one rule has to cover many bundles. The math can come out identical; the reading does not.
A fixed price lets you choose the exact number the shopper sees: the $65 pair becomes $55, or $49 if your catalog lives on price points. Clean numbers travel: "the kit is $49" works in an ad, an email, a market stall.
Percent off scales where fixed prices stall. Set 15% on the pair and the bundle reprices itself whenever the serum does, which matters once you run twenty bundles. One tradeoff to test: "$10 off" and "15% off" can be the same dollars and still read differently. Sledge Bundles prices a product bundle either way from the same builder.
How does compare-at anchoring make the price land?
Show the combined original price struck through beside the bundle price, and the saving explains itself. $65 crossed out next to $55 is the whole pitch in two numbers.
Shoppers judge the second number against the first: without the anchor, $55 floats in space; with it, $55 arrives pre-framed, same products, ten dollars kinder.
One rule keeps anchoring from curdling: the compare-at must be the true combined price. Inflate it and the trick reads as a trick. The crossed-out figure is a promise about what these products cost apart. Keep the promise.
When does a bundle need no discount at all?
When the pairing itself is the value. Convenience bundles sell the work of choosing, and shoppers pay full price for work they did not have to do.
Gift sets at the holidays. Starter kits for a first purchase. A build-your-own box where picking the pieces is the fun. None of these need a markdown, because the offer answers a different question: not "is this cheaper?" but "is this easier?"
The test: do the two products already sell together at full price? If your orders say yes, placement is all that pair needs. Save the discount for pairs that need a nudge.
How deep should each bundle type go?
Each bundle type asks the shopper for something different, so each carries its own working depth. A subscription discount repeats forever; a BOGO is deep on purpose.
| Bundle type | Working depth |
|---|---|
| Fixed bundles | 10 to 20 percent off the combined price |
| Buy X Get Y | Deep by design; the reward is free, so point it at stock you want moved |
| Volume discounts | Tiers that deepen as quantity climbs, say 10, 15, 20 percent; the deepest tier stays inside margin |
| Add-ons | Small; the add-on rides along with a product already chosen |
| Build-your-own | Small or none; the builder and the variety are the appeal |
| Subscription | Shallowest; the discount repeats with every renewal |
| Shipping | No markdown; the spend is the shipping you absorb |
| Free gift | No markdown; the real spend is the gift's unit cost |
| Thank-you page offer | Room to go deeper; the original order is already safe |
Nine of them come from one builder in Sledge Bundles, each with its own schedule and revenue line. The type-by-type playbook lives in the bundles guide.
How do you test whether the discount is right?
Run two depths against each other and let revenue decide. A/B testing splits traffic between variants, and per-offer revenue tracking scores each one in dollars, so 12% against 15% becomes a result, not a debate. Test everything. Keep what wins.
Rather be handed the starting point? Built-in Growth Intelligence reads your orders, names the pair worth bundling, and attaches a dollar estimate. Once the bundle is live, Growth Intelligence measures what the offer earned in real sales, so the depth you chose gets a grade.
The bundle pricing checklist
- The added item's margin is written down before any discount is chosen.
- The discount never exceeds that margin.
- The anchor keeps its full price; the attach absorbs the cut.
- The compare-at price is the true combined price.
- Convenience pairs launch at full price first.
- Every bundle has an A/B variant queued at a second depth.
- Revenue per offer is the scoreboard, not clicks.
Related reading
Sledge Bundles · The bundles guide · What is a product bundle? · What are quantity breaks? · How to increase average order value
Questions, answered
What is a normal discount for a product bundle?
Between 10 and 20 percent off the combined price works for most stores, with the added item's margin as the hard floor. Past the margin line, every bundled order loses money.
Should the discount come off both products in the bundle?
Price the bundle as one number, but think of the entire cut as coming from the added item's margin. The shopper came for the anchor and would have paid full price for it; discounting the anchor spends margin nothing asked you to spend.
Do bundles work without any discount?
Yes. Convenience bundles, gift sets, and build-your-own boxes sell the work of choosing, at full margin. If two products already sell together at full price, the pair needs placement, not a markdown.
How do I show the original price on a bundle?
Use a compare-at price: the combined original price struck through beside the bundle price. The crossed-out number must be what the products cost separately, or the anchor reads as a trick.
Deep enough to move. Shallow enough to profit.
Install free. By tomorrow, built-in Growth Intelligence reads your orders and names the pair worth bundling first, with a dollar estimate attached.
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