Amazon FBA Aged Inventory Surcharge: An Action Plan

Quick answer: The right response to aging inventory depends on the deadline: fix the underlying cause more than 120 days out, commit to a markdown or promotion plan at 60-120 days, and compare removal or liquidation costs directly once you're under 60 days.

Aged inventory rarely feels urgent. The units are still there, the listing is still active, and a few orders might even trickle in each month. Then Amazon applies the surcharge, and the product that looked mildly slow turns out to be visibly unprofitable.

The fee itself isn't the whole problem. Old inventory ties up cash, consumes fulfillment-center capacity, and pulls attention away from products that actually deserve another purchase order. The surcharge is just the point where Amazon makes the delay impossible to ignore any longer.

The mechanics, briefly

Amazon charges monthly storage fees for anything held in FBA, and adds an aged-inventory surcharge once units pass specific age thresholds. In the US, the first surcharge tier now starts at 181 days, not the 271-day mark many sellers still have memorized from before the 2026 change (the full threshold ladder and the reasoning behind the shift are covered in our storage-fee timing breakdown). Thresholds and rates vary by marketplace and do change, so Amazon's own aged inventory surcharge page is always the final word, not a number remembered from last year.

Why sellers notice the fee too late

Seller Central has the inventory-age data, but it's spread across reports and columns nobody checks daily. A seller reviewing revenue every morning may not look at aged stock until the monthly charge already posted.

There's a psychological trap here too. Slow inventory still carries a retail price tag, so it feels like an asset. Operationally, it can be a liability instead. Every month it stays unsold, the business pays storage, still carries the original product cost, and gives up whatever else that cash could have been doing.

Three numbers that need to be read together

Inventory age tells you how close a unit is to a surcharge band. It's a deadline, not a sales forecast.

Days of inventory estimates how long current stock will last at the recent sales rate. A product can be old but selling fast right now, or young but already overstocked. These answer different questions, and confusing them leads to the wrong action.

Contribution after fees is what actually remains once referral fees, fulfillment, advertising, storage, cost of goods, and any removal or liquidation cost are subtracted. Revenue alone can't tell you whether holding the stock is still rational.

A deadline-based plan, not a monthly cleanup

More than 120 days before the next serious threshold. Fix the cause while there's still room to act. Check for listing suppression, weak Buy Box share, uncompetitive price, thin ad coverage, poor images, or stock stranded in the wrong condition or fulfillment channel. A panicked discount is the wrong first move if the real issue is a solvable visibility problem.

60 to 120 days out. Commit to a commercial plan: a modest price cut, a coupon, targeted advertising, a bundle, an outlet channel, a wholesale offer, or shifting some units to another marketplace. Set a sell-through target and check it weekly, not at the end of the window.

Under 60 days. Stop hoping. Compare the likely surcharge against the cost of a stronger markdown, a removal order, or liquidation. Holding may still be the right call, but it should be a calculation, not attachment to the original selling price.

The same stock, two very different risk profiles

Two hundred units bought at $12 each, listed at $29.99, now selling 10 units a month, is roughly 600 days of stock at that pace. A $2 discount feels painful, but it's very likely cheaper than months of storage, surcharges, and frozen cash. The same 200 units selling 80 a month after a seasonal push begins is a different situation entirely: the age is identical, but the stock may well clear before the next charge even applies. Age only means something once it's read next to velocity.

What tends to make it worse

Sending more units because the supplier offered a discount. Increasing PPC blindly on a listing with weak conversion. Waiting for the fee to confirm what the sales history already showed weeks earlier. Removing everything without comparing what each recovery option would actually pay out. And, maybe the most common mistake, only reviewing aged inventory once a month instead of keeping a standing weekly exception list, which is far easier to act on than a quarterly cleanup project nobody looks forward to.

---

This is the queue EcomSanity's Storage-Fee Radar is built to produce: every ASIN ranked by approaching deadline, expected fee exposure, and current velocity, so the decision gets made before the charge posts instead of after. Too much stock isn't the only fee risk, see the low-inventory-level fee for the opposite problem, and the storage utilization surcharge for a related charge that isn't about age at all.