Amazon Aged Inventory Surcharge: Q4 Storage Fee Rules
The Amazon aged inventory surcharge starts at day 181, jumps 3.6x at day 271, and stacks on top of Q4 storage at $2.40 per cubic foot. Here's the math on slow stock and the removal-or-sell plan that stops the bleed.
Slow stock doesn't sit still on Amazon. It gets more expensive every month it waits.
That's the Amazon aged inventory surcharge in one sentence. Any FBA unit that's been in Amazon's fulfillment centers for 181 days or more pays a monthly surcharge on top of the normal storage fee. And the surcharge climbs in tiers, with the steepest jump at day 271, where it goes from $1.50 to $5.45 per cubic foot. Now stack that on Q4, when Amazon's standard-size storage rate goes from $0.78 to $2.40 per cubic foot. Old stock in October is the most expensive stock you'll ever own.
So here's the short version. Pull your inventory age report today. Anything that will cross 271 days before January needs a plan now: sell it, move it, or pull it. Waiting is the most expensive option on the menu.
What is the Amazon aged inventory surcharge?
It's the fee Amazon used to call the long-term storage fee. Most sellers I talk to still picture it the old way: a once-a-year hit at the 365-day mark. That picture is wrong, and it's costing them.
Here's how it works, straight from an Amazon team member's aged inventory action plan in the Seller Forums:
- Amazon takes an inventory snapshot on the 15th of every month.
- Every unit 181 days or older on that date gets charged by its age tier.
- The charge lands between the 18th and the 22nd.
- It's billed in addition to the monthly storage fee, never instead of it.
Clothing, shoes, bags, jewelry and watches are excluded from the early tiers. Everything else pays from day 181.
Amazon doesn't charge you once for slow stock. It charges you every month, and the bill gets bigger every time the calendar turns.
How much is the aged inventory surcharge in 2026?
Amazon's own fee pages sit behind the Seller Central login, so here's the 2026 table exactly as Amazon's team posted it in that same Seller Forums action plan, effective January 16, 2026:
| Days in a fulfillment center | Surcharge per month |
|---|---|
| 181 to 210 | $0.50 per cubic foot |
| 211 to 240 | $1.00 per cubic foot |
| 241 to 270 | $1.50 per cubic foot |
| 271 to 300 | $5.45 per cubic foot |
| 301 to 330 | $5.70 per cubic foot |
| 331 to 365 | $5.90 per cubic foot |
| 366 to 455 | $6.90 per cubic foot or $0.30 per unit, whichever is greater |
| 456 and older | $7.90 per cubic foot or $0.35 per unit, whichever is greater |
Look at the line between 270 and 271. $1.50 becomes $5.45. That's a 3.6x jump in one day. Everything before it is a warning. Everything after it is a penalty.
A quick heads-up. Several third-party guides ranking for this keyword still show older or blended tiers. AMZ Prep's 2026 fee breakdown matches the $6.90 and $7.90 top tiers above, and your own Fee Preview report in Seller Central is the final word on each SKU.
How do Q4 storage fees stack on top of it?
This is where October gets ugly.
Amazon's monthly storage fee is charged on the cubic feet your inventory takes up. For standard-size items, Amazon lowered the January to September rate to $0.78 per cubic foot in its 2024 fee update. From October to December, Amazon's global selling inventory fee page lists $2.40 per cubic foot for standard-size and $1.40 for oversize. AMZ Prep's August 2026 breakdown shows the same Q4 numbers for this year.
| Storage fee | January to September | October to December |
|---|---|---|
| Standard-size | $0.78 per cubic foot | $2.40 per cubic foot |
| Oversize | $0.56 per cubic foot | $1.40 per cubic foot |
So a standard-size unit pays about 3x the rent in Q4. And if it's also aged, it pays the surcharge on top. Two meters running on the same box.
Peak fulfillment fees run separately. Amazon's holiday 2026 announcement set the peak period from October 15, 2026 to January 14, 2027. That's the cost of the units that do sell. This post is about the ones that don't.
What does slow stock actually cost through Q4?
Here's the math. Run it on a store like this, a hypothetical: 600 bamboo cutting board sets, standard-size, 0.25 cubic feet each. That's 150 cubic feet. On October 15 they're 250 days old, and sales have stalled to nearly zero.
- October 15 (250 days): storage 150 x $2.40 = $360. Surcharge 150 x $1.50 = $225. Total $585.
- November 15 (281 days): storage $360. Surcharge 150 x $5.45 = $817.50. Total $1,177.50.
- December 15 (311 days): storage $360. Surcharge 150 x $5.70 = $855. Total $1,215.
- January 15 (342 days): storage 150 x $0.78 = $117. Surcharge 150 x $5.90 = $885. Total $1,002.
Four months. $3,979.50. That's $6.63 for every cutting board set, and you haven't sold one.
Monthly storage plus aged inventory surcharge at the 2026 rates above. Assumes no units sell.
Now hold that $6.63 up against a real product. The Smart Mole product on our results page sold on Amazon at $17.95 and netted $3.83 per sale after ads and inventory. Real client numbers, not typical results, and not a promise of what your store will do. A cheap product like that can't carry $6.63 of storage per unit. Four slow months wipes out the profit on almost two units for every one sitting on the shelf.
Dead stock on Amazon isn't free to ignore. You're paying rent on a product that already lost the argument.
Should you remove, liquidate or sell through before the cliff?
I'll be honest. I've watched founders hold aged stock for months because selling it at a discount "felt like losing money." Meanwhile Amazon was billing them every 15th. The discount was the cheaper loss. They just couldn't see it on one screen.
Here are your real options, all from Amazon's own guidance in that forum action plan:
- Sell it through Amazon Outlet. Outlet deals need a minimum 20% discount. On the cutting boards, if a 20% cut moves the units before November 15, you skip the $5.45 tier completely.
- Submit a removal or disposal order. Orders submitted by 11:59 PM Pacific on the 14th won't be charged that month's surcharge. Removal has its own per-unit fee, so check it in Seller Central against your next surcharge.
- Turn on automated removals. Amazon lets you set rules to pull inventory automatically after 365 days, or after it's gone unsold for months past 180 days in a fulfillment center.
- Move it somewhere you control. Pulled stock can ship from your own warehouse or 3PL to customers on your own store, where there's no aged surcharge at all.
Here's the decision rule I use. Compare the cost of moving the unit now (discount or removal fee) with the next three months of storage plus surcharge. If moving costs less, move it before the 14th. Every month you wait, the hold option gets more expensive and the exit options stay the same price.
How is AI changing aged inventory planning?
Two real changes. No magic.
First, Amazon already does the warning for you. The FBA Inventory tool flags ASINs that are subject to the surcharge now, and the ones that will be within the next 60 days. Most sellers never filter for that second group. That's the list that matters in October.
Second, the math above is tedious per SKU and easy for AI. Export your inventory age report, paste it into an AI assistant, and ask it to project every SKU's age on November 15 and December 15, apply the tier table, and sort by total cost. Ten minutes. You'll see which five SKUs are about to cost you the most, ranked.
What AI won't do is press the button. Amazon bills the gap between knowing and acting, same as it does with the low inventory level fee on the other end of the curve. Too little stock gets fined. Too much old stock gets fined. The window in between is where the profit lives.
What's the bigger picture for Amazon sellers?
Every fee in this post is set by Amazon. The tiers. The rates. The snapshot date. The Q4 rent. You're planning inventory around a landlord's calendar, and the landlord raises the rent in your busiest season.
That's why the sellers I respect do two things at once. They run tight inventory on Amazon so the surcharge never fires. And they build a store they own for their winners. On the Smart Mole product, the Shopify version earned $48.27 net per sale at a $101.38 average order value, against $3.83 on Amazon. Same product. One version pays rent on every box. The other pays you. We put it next to two sister products in Amazon vs Shopify profit per sale. That's the Amazon fee math nobody shows you, and our Amazon FBA fee changes 2026 breakdown covers the rest of the fee stack. For the inbound dates that decide whether your Q4 stock even arrives on time, read the Amazon Q4 2026 deadlines, and the Amazon selling guide for 2026 ties it all together.
Amazon rents you the shelf. Your own store is the building.
FAQ
What is the Amazon aged inventory surcharge? A monthly fee on FBA units stored 181 days or more, charged on top of normal storage, based on a snapshot on the 15th.
How much is the aged inventory surcharge in 2026? From $0.50 per cubic foot at 181 days up to $7.90 per cubic foot or $0.35 per unit at 456 days. The biggest jump is day 271: $1.50 to $5.45.
Is the long term storage fee the same thing? Yes. It's the old name. The surcharge now starts at 181 days, not at one year.
Does it replace the Q4 storage fee? No. It stacks on top of the October to December rate of $2.40 per cubic foot for standard-size items.
How do I avoid it? Sell or remove units before the next tier. Removal or disposal orders submitted by 11:59 PM Pacific on the 14th skip that month's surcharge.
What to do next
Today, open the FBA Inventory tool, filter for units that will hit the aged surcharge within 60 days, and write down every SKU that crosses 271 days before January 15. Price a 20% Outlet deal and a removal order for each one, then pick the cheaper exit before November 14.
Book Your Profit Audit
Aged stock is a sign the product isn't selling fast enough, and the fix starts with the page that's supposed to sell it. On a free profit audit we'll show you what your best Amazon product could earn on a store you own, and how to rebuild a high-converting product sales page in less than 15 minutes.
Or go here to check it out → revenueflows.ai
P.S. On Amazon, slow stock pays rent every month. On your own store, a page that sells means there's no slow stock to pay for.
Frequently asked questions
What is the Amazon aged inventory surcharge?
It's a monthly fee Amazon charges on FBA units that have sat in its fulfillment centers for 181 days or more. It's billed on top of the regular monthly storage fee, based on an inventory snapshot taken on the 15th of each month.
How much is the aged inventory surcharge in 2026?
Per Amazon's own Seller Forums breakdown, effective January 16, 2026, it runs from $0.50 per cubic foot at 181 to 210 days up to $7.90 per cubic foot or $0.35 per unit, whichever is greater, at 456 days and older. The steepest single jump is at day 271, from $1.50 to $5.45 per cubic foot.
Is the long term storage fee on Amazon the same as the aged inventory surcharge?
Yes. Amazon renamed the long-term storage fee to the aged inventory surcharge. The big difference most sellers miss is timing: it starts at 181 days, not at one year.
Does the aged inventory surcharge replace the Q4 storage fee?
No. It stacks on top. From October to December you pay the peak monthly storage rate, which Amazon lists at $2.40 per cubic foot for standard-size items, plus whatever aged tier each unit sits in on the 15th.
How do I avoid the Amazon aged inventory surcharge?
Sell or remove units before they cross the next age tier. Amazon says removal or disposal orders submitted by 11:59 PM Pacific on the 14th of the month won't be charged that month's surcharge, and the FBA Inventory tool flags units that will be hit within 60 days.