Home / Tools
Flip profit calculator: eBay, Reverb and Marketplace fees (UK)
Enter what you'd pay and what it should sell for. It works out the selling fee, postage and your profit, and the most you should offer for the return you want. Free, and nothing you type leaves this page.
How the selling fees work
| Where you sell | Fee the seller pays |
|---|---|
| Facebook Marketplace, collection | None |
| eBay UK, private seller | No selling fee on most items. The buyer pays eBay a Buyer Protection fee on top, so it doesn't come out of your sale. |
| eBay UK, business seller | 10.9% final value fee plus a 0.35% regulatory fee, both on the total the buyer pays (postage included), plus 40p per order. That's the rate for most music gear; a few categories differ. |
| Reverb | 5% selling fee plus payment processing of about 3.19% + 25p, on the total the buyer pays. |
Because eBay and Reverb charge on the total, the calculator takes the fee from the full sale price, postage the buyer paid you included. If you offer free postage, enter the item price and put the courier cost under postage.
Don't forget postage
Postage is where flips quietly lose money. Get a courier quote for the boxed size and weight before you list, and allow for a proper box and padding. Amps, speakers, keyboards and drum kits often cost more to send than people expect, which is why they usually sell better as collection-only.
What counts as a good flip
The verdict uses the same rules as the flipper extension:
- Great flip: it meets your target return and makes at least £30.
- Worth it: at least half your target return and £15 profit, or £60 profit at a 15% return or better.
- Marginal: a little profit, with not much room for error.
- Skip: no profit at that price.
The most you can pay is the price that still gets your target return after fees, postage and repairs. Treat it as your ceiling when you make an offer, not your opening number.
Where to get the sale price
A calculator is only as good as the sale price you put in. Use what the item actually sells for, not what people are asking: eBay's sold listings are the best free source. For popular models, the used gear price guide gives UK ranges, and the best music gear to flip covers what sells fast.
Do this on every listing, automatically
The flipper Chrome extension runs these sums on the Facebook Marketplace listing you're looking at. It finds the exact model, prices it from real sold prices, flags faults the seller mentions and tells you the most to offer. It's free while in testing. Join the testers.