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Free AI Tool · Found Money

Amazon Gets Fees Wrong More Often Than You Think. Most Sellers Never Check.

One wrong size tier costs a dollar or more per unit, on every unit, every month, until someone catches it. Paste your fee report and let the auditor catch it. If Amazon owes you, you'll know in about a minute.

FBA Fee Auditor

Size-tier errors · missing referral credits · duplicate fees · dispute steps

3 free runs per day. Your report is processed once and never shared.
Auditing your fee stack

The quietest leak in FBA

After the size-tier reshuffle, dimensional misclassification became the most common hidden fee error on the platform. A product that measures small standard gets billed at large standard, and nobody notices because the fee line looks plausible. A dollar twenty per unit, eight hundred units a month, and that's over eleven grand a year going to the wrong side of the ledger.

Refunds hide a second leak. When Amazon refunds a customer, it's supposed to credit part of the referral fee back to you. On high-refund SKUs those credits go missing more often than anyone admits, and each one is small enough that no human bothers to chase it. The auditor chases all of them at once.

How it works

1. Paste the rows

Fee Preview or Payments report. Add your real dimensions if you know them; that's the size-tier check.

2. AI checks five anomalies

Size-tier errors, missing referral credits, duplicate fees, storage discrepancies, and fee drift over time.

3. Get the dispute pack

Estimated monthly overcharge in dollars, plus the exact remeasure request and case steps to claim it back.

Doing this by hand vs. doing it here

By hand
With this tool
Cross-reference every fee line against the rate card PDF
Every row checked against the current size-tier logic in one pass
Match each refund to its referral credit, order by order
Missing credits flagged automatically with the order IDs
Guess where to file and get bounced between support queues
Exact path: remeasure request first, then FBA Fee Discrepancies case

Who gets the most out of this

Sellers whose product sits near a size-tier boundary
High-refund SKUs where referral credits go missing quietly
Anyone whose FBA fees feel high but can't point at the wrong line
Quarterly audit routines that catch silent fee creep early

Questions sellers ask us

Your pasted rows are sent to our server, processed once by the AI to generate the audit, and not shared with anyone. We keep your email and a short usage summary so we can send you the results. Your transaction data is not resold or published.

The audit flags anomalies from the rows you paste and computes deltas conservatively, taking the lower bound when unsure. It cannot see your full account, so treat the monthly figure as an estimate and verify each finding against Seller Central before opening a case. Amazon has the final say on every dispute.

The Fee Preview report or your Payments transaction report both work. Include the header row. If you know your product's real dimensions and weight, add them in the second box; that is what catches size-tier misclassification, the most common leak.

Yes, 3 free runs per day with your email. And no: fee-discrepancy cases are a normal Seller Support channel that Amazon expects sellers to use. Remeasure requests and fee cases with evidence do not harm account health.

That's the money Amazon took. Now find the money your page is leaving.

Fee recovery is found money, and it feels great. But the bigger pile usually sits on your product page: visitors who clicked, looked, and left without buying. Our free Profit Audit puts a dollar figure on that leak per thousand visitors and hands you the fixes.

Run My Free Profit Audit → Takes about 2 minutes. You get the exact fixes, not a sales pitch.

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