How much reimbursement value are you leaving at Amazon?

Since the 2024-2025 policy changes, FBA reimbursement claims pay your manufacturing cost instead of your sale price, and filing windows dropped from 18 months to 60 days (15 to 45 days for some claim types). Most sellers still run recovery on a VA and a spreadsheet, and claims quietly expire. This tool estimates your annual leak from published industry loss rates. It is an estimate, not an audit of your account.

Your numbers

Enter a monthly FBA revenue and an average sale price greater than zero.

Nothing is stored or sent anywhere when you calculate. The math runs in your browser.

Estimate

Your estimated annual leak

Inventory value lost per year
$0
At sale value, using a conservative 1.5% loss rate (estimate)
Recoverable from Amazon per year
$0
What claims now pay: manufacturing cost, not sale price (estimate)
Likely expiring unclaimed per year
$0
If recovery runs on a VA and a spreadsheet under 60-day windows (estimated range)
Units lost or damaged per year
0
Estimated from your volume

    Every number above is an estimate built from industry loss-rate ranges, not from your account data. Your real number could be lower or higher. The only way to know is to pull your actual reports.

    Want the real number instead of the estimate? The Reimbursement Leak Report turns your actual Seller Central exports into a claim-by-claim report in 48 hours. $249, fully credited toward the operations audit.

    Get the Leak Report — $249

    Want the claim-by-claim version for your account?

    This page guesses from industry averages. Your Seller Central reports do not have to guess. Leave your name and email and Troy will follow up about running the real numbers: which claim types you are losing to, what is still inside the filing window, and what a documentation-speed system would change for your account.

    Received. Troy will reply within one business day. If it's urgent: hello@zonspark.com.
    Something broke. Email hello@zonspark.com instead and we'll sort it.

    No newsletter signup, no drip sequence. This goes straight to Troy's inbox with the estimate you just ran.

    How the math works

    1. Inventory loss rate. Industry estimates commonly put FBA shrinkage, damage, and lost-inventory losses at 1% to 3% of FBA revenue. We use 1.5%, toward the conservative end. If your operation is tight, your real rate may be lower; high-velocity catalogs often run higher.
    2. What Amazon actually pays now. Under the reimbursement policy that took effect after 2024, claims pay your manufacturing cost, not your sale price. So we multiply the lost value by your manufacturing cost as a share of sale price (your input, or 30% by default) to get the recoverable amount.
    3. The expiry leak. Filing windows dropped from 18 months to 60 days, and some claim types allow only 15 to 45 days. A VA-plus-spreadsheet process that reconciles monthly or quarterly misses a meaningful share of those windows. We show a range of 30% to 60% of recoverable value expiring unclaimed rather than pretending we know your exact miss rate. We do not.
    4. What a documentation-speed system changes. The expiring portion is the part you control. A system that detects discrepancies as they appear, has manufacturing-cost documentation prepared before Amazon asks for it, and files inside the window goes after that range directly. It does not change what Amazon owes you. It changes how much of it you actually collect.

    Sources: the 1% to 3% loss-rate range reflects published industry estimates from FBA reimbursement providers and seller-community reporting; it is not an Amazon figure. Policy facts (manufacturing-cost payouts, 60-day windows) are from Amazon's published reimbursement policy changes. All outputs are estimates.