Amazon Reimbursement Services: What Sellers Should Know Before Choosing One

Amazon reimbursement services find and file claims for money Amazon owes you, such as lost or damaged inventory, unreturned customer refunds, and fee overcharges. In 2026 they matter more because manual claim windows are short (as little as 60 days for most warehouse losses) and Amazon now values most lost inventory at your manufacturing cost, not your selling price. Sellers who audit monthly, or hire a reliable provider, recover more than sellers who wait.

If you sell on Amazon.com through FBA, errors in the fulfillment network are a cost of doing business. Units go missing. Returns never come back. Fees get calculated on the wrong dimensions. This guide explains how Amazon reimbursement works today, what you can claim, how to file, and how to decide between doing it yourself and hiring a service like Refunzo.

What Are Amazon Reimbursement Services?

Amazon reimbursement services are third-party providers that audit your Seller Central data, identify inventory and fee discrepancies Amazon owes you for, and file and track claims on your behalf. Most are paid on a contingency basis, meaning a percentage of what they recover.

An FBA reimbursement service typically does four things:

1. Pulls your Amazon reports, such as Inventory Adjustments, Reimbursements, Customer Returns, and Removal Order Detail.
2. Matches events against what Amazon actually paid.
3. Files claims with supporting evidence before the deadline.
4. Tracks cases through resolution and reports recoveries.

An "amazon refund service" in this context does not mean customer refunds. It means recovering money from Amazon, not from your buyers.

How Does Amazon Reimbursement Work in 2026?

Amazon reimburses sellers automatically for many warehouse losses, but not all of them. Anything the system misses is a manual claim, and manual claims have strict deadlines.

Amazon says it now offers automatic reimbursements for items lost in its fulfillment centers, which removes the need to submit a claim for those cases. Amazon has also said that if you don't receive an automatic reimbursement and believe inventory was lost or damaged, you must file a manual claim. That gap is where most recoverable money sits. Our overview of Amazon's FBA inventory reimbursement policy covers the policy in more depth.

How does Amazon calculate reimbursement value?

For inventory lost or damaged before a customer orders it, Amazon reimburses based on your manufacturing cost, not your selling price.

Amazon defines manufacturing cost as your cost to source the product from a manufacturer, wholesaler, or reseller, or to produce it yourself. It excludes shipping, handling, customs duties, and similar costs. For items lost or damaged after a customer order, Amazon continues to reimburse the sale price on the original order minus applicable fees.

The policy was announced for March 10, 2025. Reports indicate Amazon pushed the effective date to March 31, 2025 to give sellers time to set sourcing costs. Our breakdown of the 2025 reimbursement policy changes explains the transition.

Worked example. You sell a product for $35. You pay $12 per unit to your manufacturer, plus $3 for freight and duties.

If that unit is lost in a fulfillment center before a customer orders it, Amazon reimburses $12, your manufacturing cost. It does not pay the $35 selling price, and it does not add the $3 for freight and duties.

If you never enter your sourcing cost in Seller Central, Amazon estimates a value, and the estimate can come in lower than your actual cost. Entering accurate costs is the first thing any seller should do.

What are the current claim deadlines?

Manual claim windows are measured in days, not months. The 18-month window many guides still cite is no longer the standard.

Based on Amazon's published policy updates, the main windows are:

• Lost or damaged in a fulfillment center: no later than 60 days after the item was reported lost or damaged.
• Customer returns: between 60 and 120 days after the customer refund or replacement date.
• Units missing from an inbound shipment: no sooner than 15 calendar days after delivery and no later than 60 calendar days.
• Lost removal shipments: no sooner than 15 days and no later than 75 days from the ship date.
• Damaged, different, or incomplete removal units: within 30 calendar days of delivery.

Amazon updates these windows from time to time, and secondary sources report further adjustments. Always confirm the current numbers on Amazon's FBA lost and damaged inventory reimbursement policy page in Seller Central before relying on any figure, including ours.

What Types of Reimbursement Claims Can You File?

You can file claims in six main categories. Each has its own report, evidence, and deadline.

1. Lost inbound inventory. Units you sent to Amazon that were never received. Evidence: shipment ID, carrier tracking, and invoices.
2. Lost inventory in a fulfillment center. Units that disappear after check-in. Spot them in the Inventory Adjustments report.
3. Damaged inventory. Units damaged by Amazon's handling. Amazon does not reimburse items damaged by customers or by carriers outside its control.
4. Customer return discrepancies. A refund was issued but the item never came back, or came back unsellable because of Amazon's handling.
5. Removal order discrepancies. Units you asked Amazon to send back or dispose of that arrived short, damaged, or not at all.
6. Fee overcharges. FBA fees calculated on incorrect dimensions or weight, or a wrong size tier.

How Much Money Can FBA Sellers Realistically Recover?

A commonly cited industry estimate is that sellers lose roughly 1% to 3% of annual revenue to FBA errors, though your number depends on SKU count, return rate, and how often you ship inbound. This is an estimate, not a guarantee. See our analysis of the top FBA inventory discrepancies for where the losses concentrate.

Illustrative math.

• A seller doing $50K per month ($600K per year): 1% to 3% is $6,000 to $18,000 in potential discrepancies per year.
• A seller doing $200K per month ($2.4M per year): 1% to 3% is $24,000 to $72,000.

Actual recoveries will be lower because of the cost-based valuation, auto-reimbursements Amazon already issued, and missed windows. Treat these numbers as an upper bound for planning, not a forecast.

How Do You File an Amazon Reimbursement Claim Yourself?

To file a claim, find the discrepancy in a Seller Central report, confirm Amazon hasn't paid it, collect proof, and submit it inside the claim window.

1. Set your sourcing costs. Enter accurate manufacturing costs so valuations are not estimated.
2. Pull the right reports. Inventory Adjustments, Reimbursements, Reconciliation, FBA Customer Returns, and Removal Order Detail.
3. Match events to payments. Compare each loss or damage event against the Reimbursements report. Only unpaid events are claims.
4. Check the deadline. Compare the event date to the window for that claim type.
5. Gather evidence. Shipment ID, ASIN/SKU/FNSKU, quantities, supplier invoices, tracking numbers, and screenshots.
6. Submit through the correct channel. Use the Get support or IDR workflow in Seller Central.
7. File one clean claim per event. Duplicates slow resolution.
8. Track and follow up. Log case IDs and escalate with new evidence if a valid claim is denied.

Plan for a monthly audit. With windows this short, a quarterly or annual review lets claims expire.

Why Do Amazon Reimbursement Claims Get Denied?

Most denials come from weak evidence, wrong claim categories, or missed windows, not from Amazon rejecting valid losses outright.

• Missed deadline. Amazon will not reopen claims outside the window.
• Missing invoices. Invoices must show the quantity and units you claim.
• Receiving discrepancies you can't prove. Without matching shipment records, an inbound shortage is hard to win.
• Customer-damaged returns. These are generally not reimbursable.
• Already reimbursed. Amazon paid it automatically or in a prior case.
• Account issues. Your account should be in good standing when you file.

If you disagree with Amazon's valuation of a unit, you can dispute it. The window for disputes has been reported as 90 days after the reimbursement in some marketplaces, so check the policy for yours.

Should You Hire a Reimbursement Service or Do It In-House?

Do it in-house if you have few SKUs, low inbound volume, and someone who can audit monthly. Hire a service when claim volume or deadline pressure exceeds your team's capacity.

Use this rule of thumb:

• Under about $20K per month, few SKUs: DIY is usually enough. Block two hours monthly.
• $20K to $100K per month, growing SKU count: A hybrid works. Audit yourself and outsource the complex categories, such as returns and removals.
• $100K+ per month, frequent inbound shipments: A dedicated service typically pays for itself, because manual matching across thousands of events is time-consuming and error-prone.

These thresholds are our guidance, not an Amazon rule. The real test is whether you have the time to find, document, and file every eligible claim before its window closes.

How Do You Choose the Best Amazon Reimbursement Services?

Choose Amazon reimbursement services on fee structure, data access, claim coverage, transparency, and compliance, not on headline recovery promises.

Ask every provider:

1. How are you paid? Contingency (a percentage of recovered funds) is common. Confirm the percentage and what counts as "recovered."
2. What data access do you need? Request read-only or limited access and understand the permissions you grant.
3. Which claim types do you cover? Lost, damaged, returns, removals, and fee overcharges. Some providers skip the harder ones.
4. How do you handle the 60-day windows? Ask how often they audit and how they prioritize claims nearest to expiry.
5. How do you report? You should see claim IDs, status, amounts, and denial reasons.
6. How do you protect account health? Ask how they avoid duplicate or low-quality filings.
7. What happens if I cancel? Understand how open claims are treated.
8. Can you speak to my category? Wholesale, private label, and online arbitrage sellers have different documentation needs.

Be cautious of anyone guaranteeing a recovery percentage or "95% success" without explaining how it is measured. Ask what the denominator is.

How Does Refunzo's Reimbursement Service Work?

Refunzo provides Amazon reimbursement services for sellers who want audits, claim filing, and tracking handled for them. The process follows the same steps described above:

1. Connect and audit. Refunzo reviews your Seller Central data across lost, damaged, returns, removal, and fee categories.
2. Validate and prioritize. Claims nearest to their deadlines are handled first.
3. File with evidence. Refunzo prepares and submits claims with supporting documentation.
4. Track and report. You see what was filed, what was paid, and what was denied.

For service details, scope, and onboarding, see our Amazon reimbursement services page.

What Reimbursement Mistakes Cost Sellers the Most?

The most expensive mistakes are the passive ones: not setting costs, not auditing, and not checking whether Amazon already paid.

• Leaving sourcing cost blank, which lowers estimated payouts.
• Auditing once a year when windows run 60 days.
• Filing claims Amazon already paid automatically.
• Ignoring returns, which are often the largest overlooked category.
• Hiring a service without understanding fees or data permissions.

Frequently Asked Questions

What is an Amazon reimbursement service?

It is a provider that audits your Seller Central data, finds inventory and fee discrepancies Amazon owes you for, and files claims on your behalf, usually for a percentage of recovered funds.

How long do I have to file an FBA reimbursement claim?

It depends on the claim type. Warehouse lost or damaged claims are generally 60 days from the event, customer returns are 60 to 120 days after the refund, and inbound and removal claims have their own windows. The old 18-month window is no longer the standard. Check Amazon's current policy page.

Does Amazon reimburse automatically?

For many fulfillment-center losses, yes. Amazon says it reimburses items lost in its fulfillment centers automatically. Cases the system misses require a manual claim.

How does Amazon calculate reimbursement amounts?

Items lost or damaged before an order are valued at your manufacturing cost, excluding shipping and duties. Items lost or damaged after an order are reimbursed at the sale price minus applicable fees.

How much do FBA reimbursement services cost?

Most charge a percentage of the money they recover rather than a flat fee. Ask for the exact percentage, what it applies to, and any minimums before you sign.

Is it safe to use a reimbursement service?

It can be, if the provider files only valid, well-documented claims and requests limited data access. Ask how they protect your Account Health and what permissions they need.

How much can I recover?

A commonly cited estimate is 1% to 3% of annual revenue in discrepancies, but your actual recovery depends on SKU mix, return rate, and deadlines. Treat it as a planning ceiling.

What does Amazon not reimburse?

Generally, items damaged by customers, items lost before reaching Amazon, claims outside the window, and units Amazon already reimbursed.

Conclusion

Amazon reimbursement is a monthly discipline, not an annual cleanup. Set accurate sourcing costs, audit on a short cycle, document every claim, and know which windows apply. If the volume outgrows your team, an Amazon reimbursement service such as Refunzo can take the work off your plate.