Amazon doesn’t tell you the money it owes you.

Last read · 214 reimbursements

Amazon's assumed cost basis$11,940.60

Your documented sourcing cost$30,371.10

Estimated shortfall$18,430.50

01You keep 100% — no commission, ever.

02We never log into your Amazon account.

03We defend your sourcing cost against the 2025 cost-basis rule.

Costback is a software tool for Amazon FBA sellers. It is not affiliated with, endorsed by, or sponsored by Amazon. Costback does not file claims on your behalf and does not guarantee any reimbursement — Amazon decides all claims. Figures shown are estimates based on your own reports and published industry benchmarks, not a promise of recovery.

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