Your SKU loses money on every unit sold. Stop throwing ad spend at it — traffic just burns cash faster. Run the seven corrections below, in order, and re-run the numbers after each one. Most unprofitable listings are one variable away from a green row.
Verify the landed cost first. Pull the real supplier cost, packaging cost and per-unit freight allocation. Cost estimates are where launch plans usually lie by $1–$2 a unit.
Shrink the box down a band. Dimensional weight (US: L × W × H ÷ 139) is the #1 accidental fee. Dropping from the 3 lb band back to 0.75 lb saves about $2.47 per unit — the single biggest free win available.
Raise the price toward break-even +20%. If your price sits below the break-even price, every sale is a donation. Even a small rise can flip the net line from red to green.
Cap ad spend at the break-even-safe ceiling. Ads at 20% of sales on a 23% margin product will quietly own the whole profit. Cut to the level where the margin survives.
Check the category tier you are priced in. Beauty at $10.01 pays 15% instead of 8%; clothing steps 5%/10%/17%. A price one cent over a threshold is a fee hike you did not choose.
Renegotiate inbound freight. Per-unit freight of $1.50 is normal; $3.50 is a sourcing conversation. A $300 shipment across 200 units is not a rounding error.
Liquidate slow stock before Q4. Storage moves from $0.78 to $2.40 per cubic foot on Oct 15. Discounting now beats paying peak storage on units that will not sell anyway.
Discipline: change one variable at a time. If you reprice, repackage and cut ads in the same week, you will never know which fix worked — and you will repeat the mistake on the next SKU.
Test the corrections before you reorder
Flip each lever in the calculator — price, box size, ad percentage, category — and watch the net line respond in real time:
Should I stop selling an unprofitable FBA product immediately?
Not automatically — run the seven corrections first. Most unprofitable SKUs are one fix away: a box a quarter-inch too big, a price sitting under a referral tier, an ad budget above the break-even ceiling, or slow stock about to hit peak storage. Change one variable at a time and re-run the numbers; only liquidate when none of the seven moves the net line.