How do I avoid Amazon's long-term storage fees?
Amazon charges long-term storage surcharges on units that have sat in FBA past 271 days, on top of normal monthly storage — and rates step up again at 365 days. The avoidance window is 181–270 days: sell down or remove those units before they cross. Waiting past 271 means the cheapest exit is usually a removal order, because removal once costs less than the surcharge repeating monthly.
The reasons, most common first
Nobody watches age buckets until the bill
Amazon ages every unit from warehouse arrival. The age report exists, but most sellers meet it for the first time inside a surprising storage bill.
Overstocked launches
Sending six months of optimistic stock for a product that sells slower than hoped is the classic path to a 271-day birthday party.
Q4 doubles the pain
Standard storage rates roughly double October–December. Old stock that limps through autumn gets the seasonal rate AND the long-term surcharge together.
How to check it yourself
Check your exposure now:
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1
Inventory → FBA Inventory → Inventory Age shows units per bucket (0-90, 91-180, 181-270, 271-365, 365+).
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2
Anything in 271+ is being surcharged already. Anything in 181–270 is your action window.
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3
For each at-risk SKU compare three numbers: expected sell-through before day 271, removal cost per unit, and the monthly surcharge. Pick the cheapest.
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4
Consider a clearance price or increased ads on 181–270 stock — a thinner margin beats a recurring fee on unsold units.
The compounding math
A pallet of 300 slow units crossing 271 days doesn't cost once — the surcharge repeats every month the units remain. Over a typical 6-month lingering period, surcharges commonly exceed what removal would have cost in month one, and you still hold the stock.
How AIAdKing handles this for you
AIAdKing tracks every unit's age bucket daily, shows the real storage amounts from your actual Amazon bills (not estimates), warns on the 181–270 window before fees hit — earlier when a festival season approaches and rates spike — and puts old-stock exposure next to each product's ad spend so removal and clearance decisions use whole-product economics.
Sellers also ask
When exactly does Amazon charge long-term storage fees? +
Assessed monthly with your storage bill, on units aged 271+ days as of the inventory snapshot date, with a higher tier at 365+. The clock runs from when each unit arrived at FBA, per unit, not per SKU.
Is removing stock always cheaper than paying? +
Usually, if the stock won't sell within a couple of months — removal is a one-time per-unit cost while the surcharge repeats. If genuine sell-through is close, a price cut or ad push can beat both.
Do fees change during Q4? +
Regular monthly storage roughly doubles Oct–Dec. Long-term surcharges apply on top. Getting aged stock out before October is one of the highest-ROI cleanups of the seller year.