Flip Phones for Profit

Appraisal Quick Sheet

Companion to "Price Any Phone in Five Minutes."

1. Sold+used filter steps

Search the exact phone on eBay
Filter to Sold Listings (asking prices are wishes; sold prices are facts)
Filter condition to Used
Sort until the comps describe the same phone you are buying (condition apples to apples)

2. The three comp-matching traps

TrapThe fix
Model variants (an iPhone 13 and an iPhone 13 Pro blend in one search)Search the model number from Settings, not the marketing name
Storage (128 GB and 256 GB sell at different prices)Appraise at base storage; treat extra storage as a bonus so comps never flatter the deal
Carrier statusLocked comps for locked phones, unlocked comps for unlocked (the most common comp error on a clean search)

3. Three comps, err low

Worked example: three matching solds at $340, $355, $360. Average, then shade down: pricing the risk that your unit is slightly worse than the photos and that the market dipped this week.
Comp 1 / 2 / 3AverageShaded expectation
$340 / $355 / $360~$350~$350 shaded low

4. The max-offer formula

max offer = (expected sale price × (1 − fee rate) − shipping − supplies) − target profit
Worked example (assumptions: $350 expected sale, eBay no store at ~13.6%, shipping and supplies ~$14, target profit $70): fees about $48; 350 − 48 − 14 − 70 = about $218. If the seller's price is above that, the deal does not exist yet. If your computed max offer is within $20 of the expected sale price, the deal is too thin to survive a single surprise.
RowWorked exampleYour numbers
Expected sale price (shaded)$350$
Fee rate (eBay no store ~13.6%; store ~9.35%)$48$
Shipping + supplies$14$
Target profit$70$
Max offer~$218$

5. Corpus-era price ladder (sanity check, not a promise)

Sells nearOperators' old ladderToday
$100pay $30 to $40Today's compressed market means most deals sit below those old spreads. Current operators describe margins of 5 to 15% on average; well-sourced sellers 30 to 50. Use the ladder only to smell a trap.
$300pay $150 to $180

6. Discipline

Never meet a seller without having run the comps first
Never trust memory of last month's prices; they drift down as new models land
Never let a seller's urgency become your urgency ("I have another buyer" is a price pressure line, not information)