FBA Reimbursement Calculator
Estimate what Amazon may owe you for lost, damaged and returned FBA inventory. Enter your own numbers — every calculation runs in your browser, nothing is uploaded.
Result
Estimates only. Default rates sit inside the 1–3% of FBA revenue band sellers commonly report as recoverable. Amazon pays lost and damaged units on your manufacturing cost or a fair-value basis — not retail price — and each case type has its own claim window. Confirm against Seller Central’s Reimbursement Reports before filing.
Get this estimate + claim checklist in your inbox
Optional — the calculator above never needs it. We email your numbers plus the 4-step filing checklist, and nothing else. No list, one email, unsubscribe any time.
Four leak buckets, one number
FBA leakage rarely shows up as one big loss. It hides in four places: units you sent in that Amazon never checked in or later lost, units returned by customers and never put back into your stock, inbound shipments whose quantities disagree with the check-in, and units that vanish from the warehouse over months of storage. The calculator prices each bucket separately so you can see which one is actually draining your account, then sums them into a monthly and annual claim opportunity.
Formulas used
- Lost & damaged = units sold × lost/damaged rate × average selling price
- Unrecovered returns = returned units × unrecovered rate × average selling price
- Inbound discrepancies = shipments × average shipment value × discrepancy rate
- Stored inventory loss = inventory value × monthly loss rate
- Claim opportunity / month = sum of the four buckets; annual = monthly × 12
How to use the estimate
Start with the four volume numbers from your Seller Central reports — revenue, units, returns, shipments — and leave the rates at their defaults for a first pass. Then open your Reimbursement Reports, compare what you actually received against what the calculator projects, and pull each rate toward your real experience. A number that stays above the 1–3% band after that calibration is a signal that claims are going unfiled, not a promise of a payout. The calculator itself never sees your inputs; it is arithmetic in your browser. Only if you choose to submit the email box above is your address (plus the estimate shown) sent — never the field values below.
FAQ
How much does Amazon reimburse for lost FBA inventory?
It depends on the case type. Amazon generally pays on your manufacturing cost or a fair-value basis for units lost or damaged in its warehouses, not your retail price, and every case type has its own claim window. The Reimbursement Reports in Seller Central hold the exact figures; this calculator is only an estimate.
How accurate is this FBA reimbursement estimate?
It is a planning estimate, not an audit. The default rates sit inside the 1–3% of monthly FBA revenue band sellers commonly report as recoverable; change any rate to match what your own reimbursement reports show.
Do I need to connect Seller Central or create an account?
No. Every calculation runs in your browser from the numbers you type; nothing is uploaded, stored or shared, and there is no sign-up.
Will you email me anything?
Only if you ask. The email box on this page is optional and sends your estimate plus the 4-step claim checklist to you, once. Your calculator field values are never uploaded; the tool itself runs in your browser.