Amazon’s policy is clear: “Amazon will reimburse the FBA fees if we confirm that they were charged using inaccurate weight or dimensions.”
There’s a catch, and it’s the reason most of this money is never recovered: you must submit the request within 90 days of the date the fee was charged. Not 90 days from when you noticed. Ninety days from the charge.
That single sentence is why fee auditing has to be a monthly routine rather than an annual project. A yearly audit finds twelve months of overcharges and can claim three of them.
Why the measurements are wrong in the first place
Your product is scanned by automated equipment when it arrives at a fulfilment centre. Amazon’s position on whose number wins is unambiguous: “When the weight or dimensions that the seller provides vary from our verified measurement, our measurement will govern.”
So a loose polybag, a box flap that hasn’t sat flat, a unit scanned at an angle — any of these can register dimensions larger than the product actually is. The item moves into a more expensive band, and every unit shipped from then on is billed at the higher rate.
Nothing alerts you. The fee just changes.
This matters more in 2026 than it did last year, because the new bulky packaging fee is priced on dimensional weight in bands of five pounds. A measurement error that pushes a product from the 15–20 lb band into 20–25 lb costs $0.32 a unit, indefinitely.
The audit: pull two reports and compare
Step one — build your baseline. For every active SKU, record the true dimensions and weight of the packaged unit as it ships. Measure the actual product, not the spec sheet. This is the reference everything else is checked against, and it only needs building once.
Step two — pull the Fee Preview report. Reports → Fulfilment → Fee Preview. It carries the columns Amazon actually bills against:
longest-side · median-side · shortest-side · length-and-girth · item-weight · product-size-tier · estimated-fba-fulfillment-fee-per-unit · estimated-referral-fee-per-unit · current-fee-category · future-fee-category · future-fee-category-effective-date
Those last three are worth noticing on their own — the report tells you about announced fee changes before they hit.
Amazon states the data may be up to 72 hours old. It doesn’t publish a generation schedule, so don’t assume a fixed cadence; just pull it on the same day each month.
Step three — compare and flag. Join the two on SKU and flag any row where Amazon’s dimension exceeds yours by enough to change a size tier or a weight band. Not every discrepancy is worth chasing. A tenth of an inch that doesn’t move a band costs you nothing.
Amazon is explicit about this, and it’s worth taking seriously: “Only submit requests that you believe will result in a change to your fees. When you submit too many remeasurement requests that don’t result in fees changes, we may not be able to process requests that are impacting fees in a timely manner.”
Your monthly remeasurement allowance is limited and set at account level based on how many offers you have with inventory. It resets on the first of each month. Burn it on rounding errors and you won’t have it for the ones that matter.
Getting it fixed: the remeasurement request
This is the one that stops the overcharge going forward.
Type “remeasure” into the Seller Central help search box and use the Remeasure FBA products and confirm fees widget. Amazon finds a sellable unit of your inventory in a fulfilment centre and measures it again. Amazon needs 10 days to review. Once confirmed, the corrected dimensions apply across every store in the region where the request was received.
Before you submit, Amazon expects you to have done the comparison above — the dimension data from the fee report against your own measurement. There is no template wording and no magic phrase; anyone selling you one is inventing it. What Amazon wants is the FNSKU and the evidence that its number and yours disagree.
A product is not eligible for remeasurement if it’s already been remeasured twice in the past 60 days, there are no available units in the fulfilment centre, or you’ve hit your monthly request limit. That second condition catches people out — you cannot get a product remeasured while it’s out of stock, so the time to do this is while inventory is on hand.
Getting the money back: the historical claim
Fixing the dimension going forward doesn’t refund what you’ve already paid. That’s a separate route.
Help → Contact Us → Shipping & FBA → FBA Issue → “Fees Charged in Error.” Supply the fee type, the ASIN and FNSKU, the date charged, shipment IDs, and your evidence — measurements and photographs of the unit alongside a tape measure and a scale reading.
Two rules from the policy worth knowing before you file:
- One claim per fee charge. “For each fee charge, you may file only one claim. Additional claims for the same fee charge will be declined.” Get it right first time.
- One request per FNSKU, not per order. You don’t file hundreds of claims for hundreds of units.
And again: 90 days from the charge date.
Every claim window, in one place
Fee errors are one of several things Amazon owes money for, and the windows are all different. Most sellers know one of these and miss the rest.
| Claim type | Window |
|---|---|
| FBA fee charged on wrong weight or dimensions | 90 days from the charge date |
| Lost or damaged in a fulfilment centre | 60 days from the date reported in the Inventory Ledger |
| Inbound shipment to Amazon | No later than 9 months after verified delivery |
| FBA customer returns | No sooner than 60 days, no later than 120 days after the refund |
| Removals lost in transit | 15–75 days from shipment creation |
| Removals damaged, or grading dispute | 60 days from delivery back |
| Disputing Amazon’s valuation of a reimbursement | 60 days after the reimbursement is issued |
Maximum reimbursement is $5,000 per unit. Amazon’s own advice on anything above that: “we recommend that you consider buying third-party insurance.”
Two policy changes that reset what’s recoverable
If your process was written before 2025, it’s out of date in two important ways.
Amazon now reimburses some things automatically. From 1 November 2024, Amazon began proactively reimbursing FBA items lost in fulfilment centres, issued when the centre reports the loss and tracked in the Reimbursements report. Amazon’s framing: “Almost all reimbursement claims related to warehouse lost and damaged and customer returns cases will now be proactively reimbursed.”
That changes where the manual effort should go. Chasing warehouse-loss claims by hand is largely duplicated work now. All removal claims still require a manual claim, and so do fee errors.
Valuation changed, and it’s worth less than it was. From 10 March 2025, pre-order losses: inbound shipments, removals, fulfilment centre incidents — are reimbursed at your product manufacturing or sourcing cost, not the sales price. Amazon’s definition: “your cost to source a product from a manufacturer, wholesaler, reseller, or produce the item if you are the manufacturer. It excludes costs such as shipping, handling, customs duties, or other costs.”
Post-order events: customer return claims — are still reimbursed at the refund amount or the replacement price, minus fees.
The practical consequence: supply your own sourcing costs. If you don’t, Amazon applies its own estimate, derived from “the sourcing cost of comparable products sold by Amazon, by other sellers, and through other wholesale channels.” That estimate is unlikely to favour you. The page is under Inventory Defect and Reimbursement → Manage Your Sourcing Cost.
Amazon can decline a submitted cost if it’s an outlier against comparable products, if documentation looks tampered with, or if you submitted the same item within the last 30 days without new information. So supply it once, supply it accurately, and keep the invoices.
One thing that did not change: there is no 2026 reimbursement policy update. The substantive shifts were October and November 2024 and March 2025. If a guide tells you the rules changed this year, it’s wrong.
Make it monthly
The whole thing is about an hour once the baseline exists.
- Pull the Fee Preview report on the same date each month
- Compare
product-size-tier, the three side measurements anditem-weightagainst your baseline - Flag only discrepancies that move a tier or a weight band
- File remeasurement requests for those, while stock is on hand
- File “Fees Charged in Error” cases for the historical overcharge, inside 90 days
- Check the Reimbursements report for what Amazon has already credited automatically, so you don’t chase it twice
Then check your storage and aged inventory reports, which have their own dimension field (item-volume) and their own errors.
An hour a month, against a 90-day window on money that otherwise expires quietly. That’s the entire argument.
FAQ
How long do I have to claim an FBA fee overcharge? 90 days from the date the fee was charged. Amazon’s weight and dimensions reimbursement policy states this explicitly, and claims outside the window are not eligible.
How do I request a remeasurement on Amazon? Search “remeasure” in Seller Central help and use the Remeasure FBA products and confirm fees widget. Amazon measures a sellable unit in a fulfilment centre and needs 10 days to review. The product must have available units in stock and must not have been remeasured twice in the past 60 days.
Which report shows the dimensions Amazon is billing me on? The Fee Preview report, under Reports → Fulfilment. It carries longest-side, median-side, shortest-side, item-weight and product-size-tier. Data may be up to 72 hours old.
Does Amazon reimburse automatically now? Partly. Since 1 November 2024, most warehouse lost-and-damaged and customer-return claims are reimbursed proactively. Removal claims and fee-error claims still require you to file.
How much does Amazon reimburse for a lost unit? For pre-order events since 10 March 2025, at your manufacturing or sourcing cost, excluding shipping, handling and duties. Supply your own cost figures or Amazon will estimate them. The cap is $5,000 per unit.
Sami Sultan runs Ecom Enable, an Amazon growth partner for DTC brands. Policy details verified against Amazon Seller Central on 27 August 2026. Claim windows and valuation rules changed materially in late 2024 and March 2025 — check the live policy before filing.
Sources: Amazon Seller Central FBA fees reimbursement policy: weight and dimensions, Fee Preview report, remeasurement requests, reimbursement policy and valuation, FC operations claims, inbound shipment claims, customer returns claims.
