Amazon FBA reimbursements analyser
Amazon reimburses you when it loses or damages your FBA inventory, or gets a fee or a customer return wrong — but the report that lists it is a wall of rows. Open it here and it is grouped into what you were reimbursed, by reason and by SKU, with reversals shown on their own line. The file is read on this device and never leaves it.
By Vedant Agarwal, who builds WidenMargin's toolsUpdated
Not tax or financial advice — every result is an estimate from the numbers you enter. Confirm your bookkeeping and taxes with a CPA or tax professional.
How it reads your file
- It works out the delimiter itself. Tab-separated, comma-separated and semicolon-separated files all work, and it copes with a byte-order mark, quoted fields, blank lines and accounting brackets for negatives.
- Every line is counted once. Each reimbursement is added to exactly one reason and one SKU, so the groups add back up to the net total.
- Reversals are kept separate. A negative reimbursement, or one carrying an original-reimbursement-id, is counted as a reversal and netted into the total rather than hidden.
- It never assumes a rate. No fee table and no reimbursement rate is written into it — every figure on screen was summed out of your own file.
What the reason labels mean
These are the common families of reason you will see. The analyser groups by whatever labels are actually in your file, so if Amazon uses a slightly different spelling, your own label is what it shows.
- Lost:Warehouse
- A unit Amazon lost inside a fulfilment centre after it was received. Amazon reimburses these, usually in cash.
- Damaged:Warehouse
- A unit Amazon damaged in the warehouse (not by a customer). Reimbursed if the damage was Amazon's fault.
- Lost:Inbound / MissingFromInbound
- Units that went missing on the way to Amazon or during check-in, where the received count fell short of what you sent.
- CustomerReturn / CustomerServiceIssue
- A customer refund or return case Amazon covered — for example refunding a buyer but never getting the unit back, or refunding more than the item's value.
- FeeCorrection
- Amazon returning a fee it overcharged — a referral fee or an FBA fulfilment fee based on the wrong size or weight.
- Reversal (clawback)
- Amazon taking back a previous reimbursement, shown as a negative amount with an original-reimbursement-id. Usually because a lost unit was later found.
What this can, and can't, tell you
It tells you, precisely, what Amazon has already reimbursed — the total, the split by reason, the worst-hit SKUs, and any reversals. That alone is worth checking: a spike in one reason or one SKU is a signal worth a look.
It does nottell you what you are still owed. That is a genuinely harder question, because it means matching lost and damaged units in your inventory ledger against what was reimbursed here, unit by unit — a second report this one does not include. We would rather say that plainly than show you a made-up "you are owed $X" number, which is what a reimbursements report on its own cannot honestly produce.
Questions Amazon US sellers ask about reimbursements
Which report do I download from Seller Central?
In Seller Central go to Reports, then Fulfilment, then Reimbursements, and download the report for the date range you want. It is a tab-separated file with one row per reimbursement Amazon has made — the reason, the amount, the units and the SKU. A CSV saved from the same report also works.
Does this tell me what Amazon still owes me?
No, and it is important to be clear about that. This report only lists reimbursements Amazon has already made. Working out what you may still be owed means comparing lost and damaged units in your inventory ledger against what was reimbursed here — that reconciliation needs a second report this one does not contain. Anyone promising a figure from the reimbursements report alone is guessing.
Is my report uploaded anywhere?
No. The file is read by your own browser and added up on your own device. There is no upload and no server call carrying your figures — close the tab and it is gone.
What do the reason labels mean?
They are Amazon's own labels for why a reimbursement happened: a unit lost or damaged inside a fulfilment centre, units lost on the way in (inbound), a customer return or service issue Amazon covered, or a fee it corrected. The analyser groups your reimbursements by whichever reason labels are in your file, so you can see where the money came from.
Why is one of my reimbursements negative?
That is a reversal — Amazon taking back a reimbursement it made earlier, usually because a unit it had reimbursed you for was later found or returned. A reversal carries an original-reimbursement-id pointing at the earlier line and a negative amount. The analyser counts reversals separately and nets them into the total, so the figure is honest.
Does the tool know Amazon's fee or reimbursement rates?
No. There is no rate table anywhere in it. Every figure it shows is a sum, a count or a share of numbers already in your file, so it cannot be out of date about a rate it never claims to know.
Related free tools
- Settlement report analyser — the payout side: read a full settlement line by line, including reimbursements as they land.
- Settlement profit calculator — what a settlement really leaves you after fees, refunds and ads.
- FBA inventory sales-tax by state — which states your stored inventory may make you register in.
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