Upload your FBA fee reports. The auditor checks every charge against Amazon's official fee tables — offline, in seconds. No subscription. No cloud. Your data never leaves your computer.
Amazon assigns the wrong size tier to your product. You get charged for Large Standard when your item qualifies as Small Standard. This compounds across every single unit shipped.
Monthly storage fees are based on volume. If Amazon uses incorrect dimensions, the storage charge is wrong — and it quietly accumulates every single month.
Helium 10 and Jungle Scout don't audit your actual fee reports. They estimate. Only your Seller Central reports contain what Amazon actually charged — and nobody checks those.
Go to Reports → Fulfillment in Seller Central. Download your FBA Fee Preview Report, Monthly Storage Fees, or Transaction Report as CSV. Takes 2 minutes.
Open the tool — it's a single HTML file, no installation needed. Drag and drop your CSV. The auditor checks every row against the official 2026 fee tables, completely offline.
Every overcharge comes with a ready-to-use dispute text in English or German. Copy it, open a case in Seller Central, and request your reimbursement.
Checks every shipment against the correct size tier and price bracket. Catches wrong tier assignments and incorrect per-oz calculations.
Validates monthly storage against your actual cubic footage. Detects wrong volume calculations and incorrect peak/non-peak rate application.
Your fee reports contain sensitive business data. With every cloud-based tool, that data leaves your machine. With FBA Fee Auditor, nothing is uploaded. Ever.
Full 2026 fee tables including price-based brackets, SIPP packaging fees, Fuel Surcharge (from April 17, 2026), and all size tiers from Small Standard to Extra-Large.
Fixed 2026 fee tables for amazon.de: every size tier has set EUR amounts per weight band (no base-rate-plus-per-100g formula). Covers envelope and standard-parcel tiers; oversize is out of scope, plus EU storage rates in €/m³.
Not ready to audit your whole catalog yet? Use this free checker to verify whether the FBA fulfillment fee on a single item is correct. Enter the item's size tier, dimensions, weight and the fee Amazon charged — it recalculates the correct 2026 fee against Amazon's official tables right here in your browser. Nothing is uploaded; it runs 100% offline.
100% offline. Your inputs never leave your device. Fulfillment fees only — storage, referral and other fees are not checked here. Reconcile with your current Seller Central fee before disputing.
Need to audit your whole catalog at once and get ready-to-send dispute letters? Get the full FBA Fee Auditor →
Four free tools, one job: catch and recover the FBA fees Amazon got wrong. Start anywhere — they all point back to the full auditor.
Every tool works offline. No subscription. No cloud. Built for sellers who want to own their stack.
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Get FBA Fee AuditorDisclaimer: FBA Fee Auditor is an independent tool created by Smart Local Tools. It is not affiliated with, endorsed by, or in any way officially connected to Amazon.com, Inc. or any of its subsidiaries. Amazon, Fulfillment by Amazon (FBA), and Seller Central are trademarks of Amazon.com, Inc.
The fee tables included in this tool are based on publicly available information from Amazon Seller Central and reflect rates as of January 15, 2026 (US) and February 1, 2026 (DE). Fee structures may change at any time. Smart Local Tools makes no guarantee that the fee tables are complete, current, or error-free. Always verify results against the official Amazon Seller Central fee schedule before filing a reimbursement case.
This tool is provided "as is" without warranty of any kind. Smart Local Tools is not liable for any financial decisions made based on the output of this tool. Use of this tool constitutes acceptance of these terms.