Ask most Amazon FBA sellers when aged inventory starts costing real money, and you will usually hear one of two numbers: 271 days, or 365 days. Both used to be correct. Neither is correct now. If you are still planning around either of those dates, you are working from a mental model that is roughly three months out of date, and the gap between what you think is safe and what Amazon is actually charging is where a lot of unnecessary fee exposure quietly accumulates.
Ask most Amazon FBA sellers when aged inventory starts becoming dangerous, and you will usually hear one of two numbers: 271 days, or 365 days. Those numbers still matter — the 271-day mark in particular is where the steepest fee jump happens — but they are not the point where you should start making a decision. In the current 2026 fee structure, the aged inventory surcharge begins at 181 days for most standard-size products, and the practical action deadline is closer to day 150. That is when you still have time to diagnose the SKU, test a price change, route inventory through a recovery channel, or choose removal before the fee clock starts running.
The mistake is not failing to know the fee table. The mistake is waiting until an invoice proves the problem. By then, every option is more expensive than it was thirty days earlier.
| Quick answer: the Amazon aged inventory surcharge applies to many standard-size FBA products once units reach 181 days in fulfillment centers, with higher tiers as inventory ages further. The most important planning point is not day 181 itself but the operating deadline before it — around day 150 — when sellers still have time to diagnose, discount, recover, remove, or liquidate inventory before fees begin. |
What Is the Amazon Aged Inventory Surcharge?
The aged inventory surcharge is a monthly fee Amazon charges on FBA units that have been stored for an extended period, on top of the standard monthly storage fee. Amazon introduced the current 181-day trigger for most standard-size products back in April 2023, replacing the older long-term storage fee structure that many sellers still refer to by its previous name. What changes from year to year is not usually the 181-day starting point itself, but the rate tiers above it — and 2026 brought a steeper top end, with a new 456-day-plus tier and higher rates for inventory held past 366 days. If you are working from an older mental model of when this fee starts, the risk is not that the rule is unfamiliar — it is that the top-end rates have gotten more expensive since you last checked.
Amazon Aged Inventory Surcharge 2026 Rate Tiers
The current tiers, effective January 16, 2026, apply to the aged inventory surcharge as follows. The surcharge begins at 181 days in FBA for most standard-size products — a threshold that has applied since April 2023, not something new this year. What is new for 2026 is the top of the structure: Amazon raised the rate for inventory held 366–455 days and added an entirely new, higher tier for inventory held 456 days or more.
The surcharge is not a single flat fee once you cross 181 days — it escalates across a tiered structure, and the steepest jump is not at 181 days, it is at 271 days, where the rate more than triples in a single billing cycle.
Aged inventory surcharge tiers — standard-size products, 2026
| Days in FBA | Surcharge per cu ft / month | Per-unit minimum |
| 0 – 180 days | No surcharge | — |
| 181 – 210 days* | $0.50 / cu ft | — |
| 211 – 240 days* | $1.00 / cu ft | — |
| 241 – 270 days* | $1.50 / cu ft | — |
| 271 – 300 days ← cliff | $5.45 / cu ft | — |
| 301 – 330 days | $5.70 / cu ft | — |
| 331 – 365 days | $5.90 / cu ft | — |
| 366 – 455 days | $6.90 / cu ft | $0.30 / unit (whichever is greater) |
| 456 days or more | $7.90 / cu ft | $0.35 / unit (whichever is greater) |
Source: Amazon Seller Central, G200684750, effective January 16, 2026. * Excludes clothing, shoes, bags, jewelry, and watches — surcharge for those categories begins at 271 days instead of 181. Surcharge is billed monthly, in addition to the standard base storage fee, and assessed using a mid-month inventory snapshot. Amazon revises fee schedules periodically — verify current rates directly in Seller Central before making inventory decisions.
The category exception is worth noting specifically: clothing, shoes, bags, jewelry, and watches are not subject to the 181-day trigger — the surcharge for those categories still begins at 271 days. If your catalog spans multiple categories, the 181-day rule does not apply uniformly across every SKU, which is exactly the kind of detail that gets missed when sellers plan around a single mental deadline instead of checking category-specific rules.
| The number to internalize is not 181. It is the gap between 181 and 271 — three tiers, each roughly 30 days apart, before the surcharge more than triples. Most of the total cost happens after the cliff at day 271, but the clock that leads there starts well before most sellers plan for it. |
A worked example: one SKU at three ages
To make the tiers concrete, take a standard-size product occupying 0.1 cubic feet per unit, with 200 units remaining in FBA. Here is what the monthly aged inventory surcharge alone looks like at three different points in that product’s life — on top of the standard monthly storage fee, which continues to apply throughout.
| Days in FBA | Tier rate | Volume | Monthly surcharge |
| 181 days | $0.50 / cu ft | 20 cu ft (200 × 0.1) | $10.00 |
| 271 days | $5.45 / cu ft | 20 cu ft | $109.00 |
| 456+ days | $7.90 / cu ft (or $0.35/unit) | 20 cu ft / 200 units | $158.00 (cu ft calc wins here) |
Example uses a hypothetical 200-unit batch at 0.1 cu ft per unit for illustration only. Actual fees depend on your product’s exact dimensions, unit count, and Amazon’s current published rates — verify your specific numbers in Seller Central or with the Onlihub storage fee calculator before making a decision.
The jump between day 181 and day 271 alone is roughly 11x on the surcharge line — before the standard storage fee, which is billed separately and continues the entire time. That is the gap that makes day 150, not day 181, the point to have already decided what happens next.
Why Day 150 Is the Real Action Deadline
One thing worth being precise about: day 150 is not an Amazon rule. Amazon does not publish or enforce anything at day 150. It is a practical operating deadline — a planning recommendation, not a platform policy — built from how long the decisions that follow actually take to execute.
If 181 days is when the surcharge starts, why plan around day 150 instead? Because 181 is the day the fee begins, not the day you should start deciding what to do about it. By the time a unit crosses 181 days, you have already lost the option of a clean, no-cost exit — the surcharge clock has started, and every additional day of deliberation is now billed.
A SKU approaching 181 days needs time for several things to happen before that date, not after it: diagnosing why it slowed down in the first place, testing a price adjustment to see if demand responds, evaluating whether a recovery channel makes sense for this specific product, or submitting a removal order if that is the right call. None of those steps happen instantly. A removal order alone typically takes two to four weeks to complete. A price test needs at least a couple of weeks to produce a readable signal. Stack those together and the 31-day gap between 150 and 181 is not generous — it is close to the minimum runway needed to make and execute a considered decision rather than a rushed one.
Sellers who wait until 181 days, or worse, until an invoice shows the surcharge already applied, have compressed their own decision window to nothing. The options are the same ones available at day 150 — discount, recover, remove, liquidate — but every one of them is worse at day 190 than it was at day 150, because the fee clock is now running while the decision is still being made.
How to Find SKUs at Risk Before Day 181
The data needed to catch this early already exists in Seller Central — the discipline required is checking it on a schedule rather than waiting for a fee to prompt the check.
Inventory Age report
This report shows exactly how your units are distributed across age buckets. The bucket to watch is 91–180 days — anything in that range is between one and three months away from crossing into surcharge territory. Run this report monthly, not only when something already looks wrong.
FBA Inventory dashboard
The dashboard surfaces your sell-through rate directly — the ratio of units sold and shipped over the last 90 days relative to your average available inventory. Amazon considers a rate above 2.0 healthy. Below 1.0 signals you are accumulating faster than you are selling, which is exactly the pattern that produces a SKU still sitting at day 181. This same dashboard also reflects your Inventory Performance Index, and IPI along with related inventory-health signals can affect your account’s storage capacity and restock flexibility — slow SKUs sitting past 181 days add downward pressure here in addition to the direct surcharge cost.
Days of supply
This metric tells you how long your current stock would last at your current sales rate. A healthy fast-moving product might sit at 30–60 days of supply. Anything showing 150+ days of supply on a product that is not intentionally being stocked deep for a known reason warrants a specific plan — not necessarily immediate action, but a defined checkpoint before it reaches 181 days.
Storage fee projections
Before assuming what a specific aging SKU will cost, run the actual number rather than estimating. The Onlihub FBA storage fee calculator lets sellers enter an ASIN and estimate what idle inventory may cost over a 12-month period. The tool displays product dimensions, item weight, estimated fee per unit, and cumulative storage cost based on inventory volume — turning a vague “this SKU is aging” concern into a concrete dollar amount before you need to guess at your own math.
What to Do Before Aged Inventory Fees Hit
Once a SKU is flagged in the 91–180 day window, the options are the same four paths available at any stage of a product’s life in FBA — the difference is that acting before 181 days keeps every option genuinely open, rather than narrowing to whichever one is fastest.
Discounting and listing cleanup can restart velocity if the product still has organic ranking and the slowdown has a solvable cause — seasonal dip, new competition, a listing that has gone stale. This works best early, while there is still time for a price test to produce a clear result before the deadline arrives.
How Onlihub Helps Recover Slow-Moving FBA Inventory Before Fees Escalate
Recovery through independent retail channels lets the product keep selling — at a real, defined recovery amount per unit — without a removal order and without the pennies-on-the-dollar economics of liquidation. Amazon’s own Supply Chain Services integration page for Onlihub describes this directly: Onlihub routes stagnant FBA inventory to a network of independent online stores, with every order still fulfilled by Amazon MCF, no removal fees, and a recovery amount you set per SKU. Sellers who activate this before 181 days are moving inventory while the aged surcharge is still zero, not competing against an active fee that is compounding while the recovery channel ramps up.
Removal orders make sense when you already have a specific destination for the returned inventory — a resale channel, a supplier buyback arrangement, or a third-party liquidator relationship that outperforms Amazon’s own liquidation program. Removal takes two to four weeks to complete, which is exactly why day 150, not day 181, is the point to initiate it if this is the path you choose.
Liquidation remains the fastest, lowest-effort exit, and the right call for inventory that has genuinely lost demand or has no viable recovery path. It is also the option with the lowest return, typically 2–7% net of retail value after Amazon’s liquidation referral fee and processing fee — which is precisely why it works best as a deliberate choice made with time to compare it against the alternatives, not a default reached only after every other window has closed.
For a full breakdown of what unmanaged aging inventory actually costs across storage fees, cost of capital, and opportunity cost, What a “Dead” SKU in FBA Actually Costs You walks through a complete worked example month by month. This article is the earlier-warning companion to that one — the goal is to never let a SKU reach the numbers described there in the first place.
Amazon Seller Central help pages linked in this article (aged inventory surcharge, Inventory Performance Index) may require you to be logged into your own Seller Central account to view full content — they are cited here as the official source for current rates, but the numbers in the tables above are what you’ll see without needing to log in.
Check Your Aging Inventory Before Day 181
The 181-day threshold is not new in 2026 — it has applied since April 2023. What is new is a steeper top end, and the ongoing risk that sellers are still planning around 271 or 365 days instead of the actual trigger point. The sellers who avoid unnecessary surcharge exposure are not the ones with better luck on which products sell. They are the ones who check the Inventory Age report on a schedule, flag the 91–180 day bucket before it becomes urgent, and have already decided what to do by day 150 instead of improvising at day 190.
Before day 181 hits, see whether your aging FBA SKUs can recover through Onlihub instead of waiting for storage fees to force the decision. Run your numbers with the Onlihub storage fee calculator, or create a free supplier account to see what your specific inventory could recover — no monthly or setup fees, and you only pay when a unit sells.
More in this series
What a “Dead” SKU in FBA Actually Costs You
About Onlihub
Onlihub helps Amazon sellers move aged and slow-moving FBA inventory through a network of independent online stores, with every order fulfilled by Amazon Multi-Channel Fulfillment — no removal fees, no new warehouse. Learn more at onlihub.com.
