"How much does Amazon owe me?" is the first question every FBA seller asks when they learn that reimbursements exist — and most of the answers online are either vague ("thousands!") or based on the old 18-month claim window that Amazon killed in October 2024. This post does the actual math: where the 1–3% of revenue benchmark comes from, which leak categories drive it, what it looks like in dollars at $30k, $100k, and $500k a month, and what each month of waiting costs you now that most claims expire in as little as 60 days.
- Industry audits consistently find FBA sellers lose 1–3% of annual revenue to unclaimed inventory and fee discrepancies.
- The two biggest leaks in most audits are returns not restocked and warehouse lost/damaged inventory — together they typically account for over half of recoveries.
- A seller doing $100k/month is looking at roughly $12,000–$36,000 per year in recoverable money at the 1–3% benchmark.
- Since October 23, 2024, most claim windows are around 60 days — so every month you don't audit, roughly a month of claimable events expires forever.
- Amazon's auto-reimbursements catch some of this, but automation misses units, quantities, and values — and misses now expire fast.
How much does Amazon owe me? Start with the 1–3% benchmark
There is no single public number for what Amazon owes sellers, because every account leaks differently. But there is a consistent finding across the reimbursement industry: when auditors go through an FBA account line by line, they typically find unclaimed discrepancies worth 1–3% of the seller's annual revenue.
That range shows up again and again because the leaks are structural, not accidental. Amazon's fulfillment network moves billions of units through hundreds of buildings. Units get misplaced, damaged, refunded without being returned, measured wrong, and disposed of — and Amazon's own tracking of those events is imperfect. The reimbursement system exists precisely because Amazon knows it loses your inventory. The gap between what happened and what Amazon paid you back for is the number you're trying to find.
Two honest caveats before the math. First, 1–3% is a benchmark, not a promise — a small catalog with low returns and few inbound shipments can sit below 1%, while a high-volume seller with heavy returns can sit above 3%. Second, since Amazon cut the claim windows in late 2024, the recoverable amount at any moment is capped by what's still inside those windows. We'll get to that, because it changes the answer to "how much does Amazon owe me?" from a big one-time backlog into a monthly flow you either capture or lose.
The 8 leak categories (and which ones matter most)
Everything recoverable falls into eight buckets. The percentages below are illustrative shares based on typical audit findings — your mix will vary with your catalog, return rate, and shipping volume — but the ranking is remarkably stable: returns and warehouse losses dominate.
| Leak category | What happens | Typical share of recoveries* |
|---|---|---|
| Returns not restocked | Customer gets refunded, item never makes it back to sellable inventory (or never comes back at all) | ~25–35% |
| Warehouse lost & damaged | Units misplaced or damaged inside Amazon's fulfillment centers, never fully reimbursed | ~25–35% |
| Lost inbound shipments | You ship 200 units, Amazon receives 192, the other 8 quietly vanish | ~10–15% |
| Fee overcharges | Wrong dimensions or weight in Amazon's system inflate every fulfillment fee you pay | ~5–10% |
| Refund discrepancies | Customer is refunded more than they paid, or you're debited more than the refund | ~5–10% |
| Removal order losses | Removal marked "completed" but units are missing or lost in transit back to you | ~3–8% |
| Disposed without consent | Amazon destroys inventory without a disposal order from you | ~1–5% |
| Warehouse lost & found gaps | "Found" adjustments that never fully offset earlier "lost" events at the unit level | ~1–5% |
*Illustrative ranges based on typical audit findings across accounts; individual results vary widely.
Notice what this means for a DIY audit: if you only check one thing, check returns. If you check two, add warehouse lost/damaged. Those two categories are where most of the money hides — and, not coincidentally, they're the ones with the trickiest claim-window rules.
Being honest here: not every loss is Amazon's fault. Customer-damaged returns that come back unsellable, inventory you told Amazon to dispose of, normal return-rate losses, and storage fees you actually incurred are yours to eat. A good audit separates "Amazon owes you" from "that's just the cost of FBA" — filing junk claims wastes your time and can annoy Seller Support into scrutinizing your real ones.
Worked examples: $30k, $100k, and $500k per month
The benchmark is 1–3% of annual revenue, so first annualize your monthly number, then apply the range. Here's the math done correctly at three common revenue levels:
| Monthly FBA revenue | Annual revenue | Low estimate (1%) | High estimate (3%) |
|---|---|---|---|
| $30,000 | $360,000 | $3,600 / yr | $10,800 / yr |
| $100,000 | $1,200,000 | $12,000 / yr | $36,000 / yr |
| $500,000 | $6,000,000 | $60,000 / yr | $180,000 / yr |
Put those numbers next to your net margin and they get uncomfortable fast. If you run a 15% net margin on $100k/month, your annual profit is around $180,000. A mid-range leak of $24,000 a year means Amazon is quietly holding roughly 13% of your profit — money you already earned, sitting on the wrong side of the ledger because nobody filed the claims.
And unlike growing sales, recovering it doesn't require more ad spend, more inventory risk, or more anything. The work already happened. The units already shipped. This is the cheapest "revenue" you will ever collect, which is exactly why the question "how much does Amazon owe me?" deserves a precise answer rather than a shrug.
The expiry math: what waiting costs under the 60-day windows
Here's the part most 2026 sellers still haven't internalized. Before October 23, 2024, you could look back 18 months and file claims on old discrepancies. That world is gone. Amazon cut the eligibility windows by roughly 90%, and the current rules look like this: fulfillment center lost/damaged claims must be filed within 60 days of the event being reported; customer return claims within 60–120 days of the refund; removal-in-transit claims within 15–75 days; inbound shipment claims within about 60 days once the shipment becomes eligible. We break down every window in detail in our guide to the 60-day deadline and the full plain-English policy explainer.
The practical consequence: your claimable pool refills and drains continuously. New discrepancies enter it every day; old ones expire out of it roughly 60 days later. If you audit once a year like it's 2023, you don't recover a year of leaks — you recover about two months of leaks and permanently forfeit the other ten.
So the real cost of waiting is simple to compute: every month you don't audit, roughly one month's worth of claimable events expires forever. One month of the annual estimate is the annual figure divided by 12 — which works out to 1–3% of a single month's revenue:
| Monthly FBA revenue | Annual leak estimate (1–3%) | Expiring per month you wait |
|---|---|---|
| $30,000 | $3,600 – $10,800 | $300 – $900 / mo |
| $100,000 | $12,000 – $36,000 | $1,000 – $3,000 / mo |
| $500,000 | $60,000 – $180,000 | $5,000 – $15,000 / mo |
Amazon's auto-reimbursement system does not make this safe to ignore. Since late 2024 Amazon proactively reimburses many lost/damaged and return cases — but automation misses units, pays partial quantities, and applies wrong values (especially since the March 2025 shift to manufacturing-cost valuation for pre-order losses). Under the old rules a missed case sat claimable for 18 months. Now whatever automation misses expires in about 60 days. Monthly audits aren't a best practice anymore; they're the minimum viable cadence.
Estimate it yourself: the "how much does Amazon owe me" calculator
Drag the slider to your monthly FBA revenue. The calculator annualizes it, applies the 1–3% audit benchmark, and shows what's expiring each month you don't file.
Illustrative estimate based on the 1–3% industry benchmark. Your actual recoverable amount depends on your catalog, return rate, and how much is still inside the current claim windows. For a category-by-category estimate, try the full recovery calculator.
How to get your real number (not the benchmark)
The benchmark tells you whether it's worth looking. Your Inventory Ledger tells you what's actually there. Here's the 15-minute version of a DIY spot check — the same starting point we use, minus the automation:
Pull the Inventory Ledger
In Seller Central go to Reports → Fulfillment → Inventory Ledger. Run the detailed view for the last 60 days — the window that's still claimable for most fulfillment center events.
Filter for negative adjustments
Look for adjustment events where inventory was marked misplaced, damaged, or disposed. Each negative adjustment is a unit Amazon took out of your sellable count — and each one should end in either a "found" correction or a reimbursement.
Match against the Reimbursements report
Open Reports → Fulfillment → Reimbursements and match every discrepancy to a reimbursement ID. Anything unmatched after Amazon's processing time is a potential claim.
Check refunds older than 60 days
Pull refunded orders from 60–120 days ago and verify each item was either physically returned to your inventory or reimbursed. Customers get roughly 30 days to send items back; if a refunded unit hasn't reappeared within 60 days, you may be owed for it — this is the returns-not-restocked leak, and its claim window opens at day 60 for a reason.
Decide who does this every month
This is the honest fork in the road. Doing steps 1–4 monthly, at the unit level, across every SKU is real work — most sellers who start DIY quietly stop after two cycles. We compare the true costs of DIY vs. software vs. agencies separately, but whatever you pick, pick something with a monthly cadence. Under 60-day windows, "quarterly" means losing a third of your claims.
One more valuation detail worth knowing before you file anything: since March 10, 2025 (US), losses that happen before a customer order are reimbursed at manufacturing cost, not sale price — and Amazon uses its own cost estimate unless you upload yours. If Amazon's estimate is low, uploading your actual cost data raises every future reimbursement. Losses after a customer order still pay out at sale price minus fees.
FAQ: how much does Amazon owe me?
Is the 1–3% of revenue benchmark realistic for every seller?
It's a range from industry audits, not a guarantee. Sellers with high inbound volume, lots of returns, or oversize products tend to sit at the higher end; small catalogs with low return rates can fall below 1%. The only way to know your actual number is to audit your own account — a benchmark tells you whether it's worth looking, not what you'll find.
Doesn't Amazon reimburse me automatically now?
Partially. Since late 2024 Amazon says it proactively reimburses most warehouse lost/damaged cases and many customer-return cases. In practice, automation misses units: mismatched quantities, partial reimbursements, wrong values, and events that never trigger a case. Because the manual claim window is now only about 60 days for most categories, anything automation misses expires quickly if you're not auditing monthly.
How far back can I claim FBA reimbursements in 2026?
Not far. Since October 23, 2024, fulfillment center claims must be filed within 60 days of the item being reported lost or damaged, customer return claims within 60–120 days of the refund, and removal-in-transit claims within 15–75 days of shipment creation. The old 18-month lookback is gone. That's why the recoverable backlog most sellers imagine is smaller than they think — and why waiting costs real money every month.
Will I get reimbursed at my sale price or my cost?
It depends on when the loss happened. Since March 10, 2025 (US), inventory lost or damaged before a customer order is reimbursed at manufacturing cost — your product cost excluding shipping, duties, and handling. Amazon uses its own estimated cost unless you upload your actual cost data, so upload real costs if Amazon's estimate looks low. Items lost or damaged after a customer order are still reimbursed at the sale price minus fees.
The bottom line
So, how much does Amazon owe you? At the industry benchmark: 1–3% of your annual revenue, concentrated in returns not restocked and warehouse lost/damaged inventory, with the answer shrinking by roughly a month's worth of claims every month you don't act. A $100k/month seller who waits a quarter doesn't just delay $3,000–$9,000 — under the current windows, most of it is gone for good.
The benchmark gets you in the right ballpark. Your Inventory Ledger gets you closer. A unit-level audit gets you the exact figure — and files the claims before they expire.