Removal vs Storage Calculator

Aging FBA inventory bleeds money two ways: base monthly storage and the aged-inventory surcharge that stacks on top once the units get old. The question is whether to keep, liquidate, remove, or dispose. The answer depends on the per-SKU math, not gut feel. This skill runs that math.

When to use this

• Units approaching or past the aged-inventory surcharge thresholds (it begins around 181 days and gets steeper at 271+ and 365+ days).
• A slow mover that is not turning and is costing storage.
• Q4 prep where storage rates jump and aged stock costs more.
• April 2025 auto-removal rules in effect and the seller needs to decide.

The framework. The Four Decisions

For each aging SKU, compute the dollar outcome of four options.