A 20% discount does not usually mean a 20% reduction in profit. Materials, production time, packaging, and many order costs remain unchanged when the price falls. Some selling fees get smaller, but those savings cover only part of the revenue you give up. Before publishing a promotion, calculate the discounted order itself rather than applying the discount percentage to a previous profit figure.
Start with the regular order
Use this worked example: a $40 item, $5 shipping charged, $12 materials, $8 labor, $1 packaging, and a $5 shipping label. With no buyer sales tax or Offsite Ads, modeled seller fees are $4.73 and profit is $14.27. This is the baseline. Write it down before testing the promotion so you can compare both the dollar surplus and the margin. Comparing margins alone can hide how much contribution each order makes toward the rest of your business.
Apply the discount only where it belongs
A 20% item discount reduces the item from $40 to $32. With the same $5 shipping charge, seller revenue is $37. Transaction fees become $2.41, processing becomes $1.36, and the listing allocation remains $0.20. Fees total $3.97; business costs stay $26. Profit is $7.03. The $8 revenue reduction has almost halved the earlier profit, despite some fee savings. If shipping is discounted too, change the shipping field rather than assuming the item-discount field does that automatically.
Add the expensive scenario before deciding
Now select a 15% Offsite Ads fee on the discounted $37 order. That adds $5.55 and brings the modeled profit to $1.48. A modest extra packaging expense, seller-fee tax, or replacement allowance could absorb most of that amount. This does not prove that every promotion is a poor idea. It shows why overlapping promotions and acquisition costs should be checked together. The attractive regular-price margin is not evidence that every discounted order remains comfortable.
Distinguish clearance from a normal offer
You may rationally accept a lower return to clear finished stock, release cash, or make room for a new line. That is a different decision from selling a product indefinitely below the price needed to support production. For clearance, consider which costs are already sunk and which costs still occur when the next order arrives. For ongoing production, include replacement materials and labor at the rates you will actually need to pay. Label the scenario so a temporary exception does not become the unnoticed normal price.
Estimate the volume required cautiously
If regular profit is $14.27 and sale profit is $7.03, you need a little more than two discounted orders to produce the same modeled surplus as one regular order. That also requires more materials, shipping, labor, and handling capacity. The calculation does not guarantee that the promotion will double demand. A promotion can increase gross sales while leaving less profit and consuming more of your week. Compare actual results over a defined period instead of celebrating the revenue increase alone.
A pre-promotion checklist
- Confirm whether the offer applies to items, shipping, or both.
- Keep per-item and per-order costs unchanged unless there is evidence of a saving.
- Test the applicable advertising-fee scenario.
- Check profit dollars, margin, and production hours together.
- Set an end date and a clear purpose for the promotion.
The goal is a discount you can explain economically. A smaller offer, a minimum order value, or a genuinely efficient bundle may support that purpose better than a large percentage cut across everything.
Put your own numbers beside the example. The calculator includes labor, shipping, fee bases, quantity, and Offsite Ads.
Calculate your order →Sources and scope
Fee references: Etsy's official fee overview, payment processing schedule, and Offsite Ads rules, checked November 3, 2026. These examples describe US sellers receiving USD through Etsy Payments. Business assumptions are illustrative, not a forecast or tax advice.