If low-inventory fees punish running FBA stock too thin, Amazon’s aged inventory surcharge punishes the opposite mistake – letting stock sit too long. For wholesale and bulk buyers, who often order in case packs or full pallets to hit pricing breaks, this is the fee most likely to quietly eat into margin on slower-moving SKUs.
What the aged inventory surcharge is
This fee replaced Amazon’s older “long-term storage fee” model and applies to units that have sat in FBA fulfillment centers past a certain age, on top of (not instead of) the regular monthly storage fee every unit already pays. Coverage of exactly where the 2026 threshold starts varies by source – some describe it beginning as early as 181 days, others describe the more familiar 271-day mark as where rates step up noticeably – but sources agree the structure gets meaningfully more expensive at 12 months and again past 15 months. Given that inconsistency, the safest move is to treat 271 days as the point to have a plan in place, and confirm your account’s exact current thresholds in Seller Central rather than relying on any third-party number, including this one.
2026 rate structure
Two independent sources corroborate the same figures for the higher age tiers: inventory aged 12-15 months is charged $0.30 per unit or $6.90 per cubic foot (whichever is greater), and inventory aged 15+ months jumps to $0.35 per unit or $7.90 per cubic foot. Rates for the earlier age bands (roughly 181-365 days, depending on which threshold framework applies to your account) vary by product category and size tier and aren’t consistently published – check your own Seller Central fee schedule for those figures. The surcharge is assessed monthly rather than as a periodic sweep, so it compounds every month a unit remains unsold past the threshold.
How this differs from regular monthly storage fees
Every unit in FBA already pays a monthly storage fee based on cubic footage, regardless of age. The aged inventory surcharge is a separate, additional charge layered on top once a unit crosses the age threshold – it doesn’t replace anything you’re already paying. For small, dense items especially, sources describe the combined effect as multiplying total storage cost several times over once a unit ages into the higher tiers.
Why this matters more for wholesale and bulk buyers
Retail arbitrage sellers restocking small quantities rarely accumulate enough aged inventory to trigger this at scale. Wholesale buyers work differently: case-pack minimums and pallet pricing breaks often mean ordering more units than will sell in the first few months, especially for a new SKU you’re still gauging demand for. A unit that looked like a good bulk-pricing decision on the purchase order can turn into a monthly-compounding cost if it’s still sitting in a fulfillment center nine or twelve months later. This is the same underlying risk covered in our guide to avoiding dead stock – the aged inventory surcharge is simply Amazon’s mechanism for pricing that risk directly onto your account.
How to avoid getting caught by it
- Forecast sell-through before you order, not after. Case-pack and pallet economics look good on paper until you model how many months of supply you’re actually buying relative to realistic sell-through velocity.
- Watch the calendar on slower SKUs specifically. A fast-moving item rarely reaches the aged tiers; it’s the slow 20% of your catalog that quietly accumulates the surcharge.
- Consider a removal or liquidation before the 12-month step-up if a SKU clearly isn’t going to sell through – the surcharge jump at 12-15 months is steep enough that removing slow stock earlier is often cheaper than continuing to pay it monthly.
- Weigh this against the opposite risk. Ordering too conservatively to avoid aged stock can push you into low-inventory-level fee territory instead – the two fees pull reorder timing in opposite directions, and the right balance is specific to each SKU’s actual sell-through rate.
This surcharge was one of several 2026 FBA fee changes we outlined in our broader overview of Amazon FBA fee changes for wholesale buyers – this post goes deeper on the aged inventory piece specifically, since it’s the one most tied to bulk-order sizing decisions.
Wholesale Distributors US ships authentic inventory with documentation to support consistent, right-sized restocking – apply for a wholesale account to see current terms.
FAQ
When does Amazon’s aged inventory surcharge start applying?
Sources describe the 2026 threshold differently – some cite 181 days, others the more familiar 271-day mark – but all agree the surcharge steps up meaningfully at 12 months and again past 15 months. Confirm your account’s exact current thresholds in Seller Central.
How much is the aged inventory surcharge in 2026?
Reported rates for inventory aged 12-15 months are $0.30 per unit or $6.90 per cubic foot, whichever is greater; inventory aged 15+ months is charged $0.35 per unit or $7.90 per cubic foot. Rates for earlier age bands vary by category and should be checked in your own fee schedule.
Is the aged inventory surcharge instead of the regular storage fee?
No. It’s an additional monthly charge layered on top of the regular monthly storage fee every FBA unit already pays – it doesn’t replace it.
Related reading: Amazon FBA Fee Changes in 2026 | How to Avoid Dead Stock in Wholesale Buying | Amazon Low-Inventory-Level Fee for Wholesale Buyers
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