Buy Check

Pay no more than

Enter sold prices to start

Waiting for comps

What it sells for

Recent sold prices for this exact config (Terapeak or Swappa), separated by spaces

0 comps

Seller is askingAll in, including any shipping to you

Successor ships within 45 daysTakes 12% off the expected price

Parts or not working unitUse for-parts sold comps; shorter gate list

Sell on

Assumptions

Required margin, % of sale priceRises automatically with fewer than 5 comps or a wide spread

Bankroll $No single unit may cost more than 25% of it

Promoted listing rate %eBay only

Shipping cost to buyer $Insured; preset per lane

Packaging $

Return rate %Cost of a return is both shipping legs plus a 5% relist haircut

Buyer sales tax %eBay charges its fee on the tax too

Learned rules (params.json)

Paste data/params.json from the repo. It raises the required margin for a family and the return rate for a source when the learn loop has enough sales; it never lowers either.

FamilyCatalog name, e.g. iPad Air M2 11

Source

Gates before money changes hands

Fee rates verified 2026-09-05: eBay Basic Store 7.35% for tablets and laptops (Mac and PC), 9.35% for phones, 13.6% with no store, plus $0.40 per order; Swappa about 6.49% plus $0.49. Numbers are estimates, not accounting.