STSeller Toolkit

Long-Term Storage Fee Estimator

Estimate Amazon's monthly LTS fee on aged inventory: the greater of the per-unit or per-cubic-foot charge, by age bracket.

cu ft

Total cubic feet divided by unit count.

Estimated monthly LTS fee
$45.00
Charged by
per-unit rate
Charge methodMonthly fee
Per-unit ($0.15 / unit)$45.00
Per-cubic-foot ($0.15/ft³)$2.25
Amazon bills the greater$45.00
Notes
  • Rule used (Amazon Feb 2024+): 181–365 days → greater of $0.15/unit or $0.15/cu ft. Over 365 days → greater of $0.50/unit or $0.15/cu ft. Charged in Feb and Aug.
  • The 365-day cliff more than triples the per-unit rate. Stranded inventory (in the warehouse but not buyable) gets charged too. Move slow stock before the assessment date.

Long-Term Storage Fee Estimator

Amazon charges you for the sin of letting inventory sit. The long-term storage fee (LTS) is the punishment for stock that didn't move, and it bites twice a year in February and August.

Here's the rule this tool uses, based on Amazon's Feb 2024 rates: for units aged 181 to 365 days, you pay the greater of $0.15 per unit or $0.15 per cubic foot. For units older than 365 days, it jumps to the greater of $0.50 per unit or $0.15 per cubic foot. Amazon bills whichever is higher, so a bulky light item gets charged by volume while a small dense one gets charged by the unit.

That 365-day cliff is the one that hurts. Cross it and your per-unit fee more than triples. I've watched a few hundred slow units quietly rack up a fee bigger than the product was worth, then sit another month anyway.

The fix is boring but real: before the cutoff date, run a removal order, a liquidation, or a discount that actually clears the stock. Stranded inventory — units that are in the warehouse but not buyable — gets charged too, and that's just insult on top.

Enter your unit count, the age bracket, and the volume per unit. The tool shows both the per-unit fee and the per-cubic-foot fee, then bills you the larger, which is what Amazon will do. If the number makes you wince, that's the signal to move the stock before the next assessment date, not after.

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