When we take on a new brand, one of the first things we do is go looking for money Amazon already owes them. Not future sales. Money owed today, sitting unclaimed, from things that already went wrong.
We almost always find some. One brand we onboarded was owed roughly £14,000 in Amazon FBA reimbursement claims that had never been filed. Fourteen thousand pounds. They had no idea it existed, and nothing about their account looked broken from the outside. Sales were fine. Reports were green.
That's not a small number for most businesses. It's a decent chunk of an annual ad budget, recovered from money that was already yours.
Here's where it hides, why it accumulates so quietly and what claiming it actually involves, caveats included.
Where the money comes from
Amazon's fulfilment network moves millions of items a day, and at that scale things go missing, get broken and get miscounted. Amazon's own policy accepts this. When its warehouse loses or damages your inventory, you're entitled to be reimbursed. The catch is that reimbursement doesn't always happen automatically, and when it doesn't, the burden of noticing falls on you.
The main categories look like this.
Lost and damaged inventory. Units disappear between inbound shipments, warehouse transfers and storage. Amazon reimburses many of these on its own, but not all, and its own valuation of your product is often lower than it should be.
Customer returns that never came back. A customer gets refunded, the clock starts, and if the item isn't returned to your inventory within the window, you're due the money. Refunds also sometimes exceed what the customer originally paid. Nobody sends you an alert for either.
Returns that came back unsellable. Item returned damaged or swapped, quietly graded unsellable, and your stock count drops with no compensation unless someone asks why.
Fee errors. FBA fees are calculated from your product's recorded dimensions and weight. If Amazon has your product measured wrong, even slightly, you overpay on every single unit until someone checks. Across a year and a full catalogue, that's real money.
Inbound shipment discrepancies. You sent 500 units, Amazon received 488, and the difference just sits there unless you reconcile and claim.
Why it builds up without anyone noticing
None of these losses arrives as an event. There's no email saying "we lost 40 of your units in March." Each one is a small discrepancy buried deep in reports most brand owners have never opened, four or five layers below the sales dashboard they check every morning.
Variations were a mess. Ads needed work. Stock was running low. That's the stuff that gets attention, because it's visible. A sliver of shrinkage on every SKU is invisible unless someone is specifically reconciling units in against units sold, returned and remaining. Almost nobody is.
So it compounds. A few units here. An overcharged fee there. A refund that never netted off. Eighteen months later it's a five-figure sum, and the brand has been unknowingly funding Amazon's margin of error the whole time.
There's a deadline too, which is what turns neglect into permanent loss. Amazon has tightened its claim windows over the years, and for most claim types you now have months, not years, to raise a case. Every week a discrepancy sits unnoticed, part of your money quietly expires.
What claiming an FBA reimbursement actually takes
The work is unglamorous, which is precisely why it sits undone.
There are three stages to it: reconciliation, evidence, persistence. Reconciliation is the slow part, accounting for every unit that went into Amazon's network against everything that came out the other side. Evidence is the fussy part, because a claim without the right paperwork behind it is a claim Amazon can wave away. Persistence is what almost everyone underestimates.
Because Amazon's first answer is often no. Not a considered no, a template no. The cases that get paid are the ones that come back with the specifics restated, calmly, as many times as it takes. This is a game of paperwork stamina, and Amazon is structurally better at it than a busy brand owner. That imbalance is the whole reason the money sits there.
The £14,000 brand is a fair picture of the shape of it. A few weeks of reconciliation, a stack of cases, a second and sometimes third round on the stubborn ones. No trick involved. Just someone whose job it was to notice, and to not go away.
Fee errors are their own quiet category. We've seen a single corrected measurement repay itself hundreds of times over, one slightly overcharged fee at a time. Most brands have never once checked what Amazon thinks their product weighs.
The honest caveats
Now the part the reimbursement industry tends to skip.
This is admin, not magic. There is no secret lever, and anyone promising to "find you thousands" before they've seen your data is guessing. The amount you're owed depends on your volume, your category and plain luck. High-volume FBA brands with big catalogues are usually owed the most. A brand doing 200 units a month might be owed very little, and that's a fine outcome to discover.
Amazon has also automated more of this over time, and its policies change without much ceremony. Some of what needed manual claims five years ago is reimbursed automatically now. The gap hasn't closed, but it moves, and yesterday's tactic list goes stale.
And be careful with recovery firms charging a hefty cut of whatever they find. Some are competent. Some file sloppy, aggressive claims that can put your account health at risk for money that was recoverable with a careful case anyway. Whoever does this for you, make sure they treat your account like theirs, because Amazon holds you responsible for every case filed in your name.
We fold this work into running the channel rather than treating it as a product, for the same reason we care about pricing and sellers and content. Money leaking out of the back of an account is a control problem, just a quieter one than the sellers on your buy box, and brands that have lost track of one have usually lost track of the other.
Worth an honest question, at least
Here's a test that costs nothing. Pick your highest-volume SKU and ask whether anyone in your business could tell you, within the hour, how many units went into Amazon over the last year versus how many were sold, returned or are still sitting there. If someone can, and the numbers net off, you're in rare company.
If nobody can, that gap is where the money lives.
Most brands are owed something. Very few know how much. Finding out properly is a reconciliation job, not a guess, and it's one of the first things we do for every brand we take on. Sometimes the first thing we deliver is money that was yours all along.
If you'd rather know the number than wonder, the check itself costs nothing.
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