Product research
Amazon to eBay: the price gap is a reference, not a supply chain
The price gap between Amazon and eBay shows what a product could earn on eBay. How to read it with the right product, the right price, and without breaking eBay's rules.
"Amazon to eBay" is one of the phrases eBay sellers search for most. The idea behind it is simple: if the same product sells for less on Amazon and more on eBay, there's a profit in between. The idea starts with the right question but can end with the wrong answer. This post is about what the gap shows, what it doesn't, and how to read it safely.
What the gap shows
A product's Amazon price is a good measure of what the market thinks it's worth. Its sale price on eBay tells you what buyers on eBay are willing to pay. The gap between the two is the first sign of what the product could leave you on eBay. A sign, not a decision: fees, shipping and sourcing decide whether the gap is really profit.
Where the gap can't be a supply chain
eBay doesn't allow buying an item from Amazon or another retailer when it sells and having it shipped straight to your buyer. The post on drop shipping rules covers why: the buyer gets another store's box and invoice, the delivery time isn't in your hands, and stock can run out overnight. So the gap is a reference: you ship from your own stock or an agreed wholesaler, and the Amazon price tells you whether your cost is reasonable.
Matching the right product
The gap means nothing with the wrong match. Two listings with similar titles aren't necessarily the same product: a different model number, pack size or color changes the price completely.
- If there's a barcode (UPC, EAN) or manufacturer part number (MPN), compare that first.
- Are the brand and model the same? One letter's difference is another product.
- Pack size: a single item or a two-pack?
- Variant: color, size, capacity.
- Image: do the box and the product look the same?
SellerLibrary's Amazon matching scores candidates in this order and shows the reason for every score. No product counts as matched until you approve it.
Reading the right price
On Amazon, a product's price can depend on the delivery region. SellerLibrary verifies that the Amazon session's selected delivery region is in the US and reads its price and stock. No separate ZIP code is needed on SellerLibrary, and research does not change your delivery settings.
- Read the stock status along with the price; the price of an out-of-stock product says nothing.
- Prices can change within a day; base the decision on a price watched for a while, not one reading.
- Add shipping to the price; free shipping doesn't apply to every product.
Turning the gap into profit
eBay takes its final value fee from the total the buyer pays, which includes shipping and sales tax. The gap is what's left once those fees, your own shipping and the item's cost come out. A gap that looks like 30% on paper can drop to single digits after fees. The post on eBay fees works through it step by step, and you can try your own numbers in the fee calculator.
Once you've seen the gap
- Source the product from your own stock or a wholesaler you have a written agreement with.
- Check whether the brand restricts selling on eBay (VeRO).
- Confirm the demand in eBay's sold listings for the last 90 days; cheap on Amazon doesn't mean it sells on eBay.
- Set the handling time to your own shipping time.
SellerLibrary uses Amazon only as a price and cost reference; it doesn't order from Amazon on your behalf and doesn't accept a match without your approval.
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