Storage is the fee sellers forget — until a slow product sits for months and quietly eats its own margin. In 2026 Amazon cut some fulfilment fees but made holding stock more expensive, so understanding storage fees is now part of buying well, not just accounting after the fact. Here's how UK FBA storage fees work this year and how to keep them off your P&L.
The three ways Amazon charges you to store stock
- Monthly inventory storage fee — the base charge for the space you use, every month.
- Aged-inventory surcharge — an extra charge on units that have been stored too long.
- Storage-utilisation surcharge — an extra charge if you hold a lot of inventory relative to how fast you ship it out.
Most sellers only ever think about the first. The other two are where slow buyers get punished.
1. Monthly storage fees (2026)
In the UK, storage is measured per cubic foot per month, based on the volume your units occupy. As a 2026 planning guide:
| Size type | Jan–Sep (£/cu ft/month) | Oct–Dec (£/cu ft/month) |
|---|---|---|
| Standard-size | ~£0.78 | up to ~£2.40 |
| Oversize | ~£0.56 | up to ~£1.40 |
Two things to note. First, rates jump in the fourth quarter (October–December), because warehouse space is scarce in the run-up to Christmas — so parking stock in a fulfilment centre over peak costs noticeably more. Second, the fee is volumetric, not weight-based: bulky, light products cost more to store than their weight suggests. Confirm the exact current rates in Seller Central, as Amazon adjusts them.
2. The aged-inventory surcharge
This is the one that catches people out. Once units have been stored for a long time, Amazon adds an aged-inventory surcharge on top of the monthly fee, and it climbs the longer stock sits. As a rough 2026 picture for standard non-media items:
| Time in storage | Approx. surcharge (£/cu ft/month) |
|---|---|
| 271–300 days | ~£2.32 |
| 301–330 days | ~£2.40 |
| 331–365 days | ~£2.48 |
| Over 365 days (non-media) | ~£5.71 |
Stock that's been sitting for over a year can therefore cost several pounds per cubic foot per month in surcharge alone — before the base storage fee. For a retail-arbitrage seller, a pallet of a product that didn't move is not just dead cash; it's a monthly bill that grows.
3. The storage-utilisation surcharge
Amazon also looks at the ratio between how much stock you store and how much you ship out. If your storage-utilisation ratio runs high — holding well over about 22 weeks of cover, measured as average daily inventory volume divided by average daily shipped volume over the trailing 13 weeks — you can be hit with a storage-utilisation surcharge. In plain terms: don't stockpile far more than you're selling. It's another nudge toward buying to your actual sell-through, not to your optimism.
Why storage fees changed the 2026 maths
The headline in 2026 was fee cuts — lower fulfilment fees, expanded Low-Price FBA, reduced referral fees in several categories. But the quiet counter-move was tighter storage economics: aged-inventory and utilisation surcharges make slow stock more expensive than before. Amazon is rewarding stock that moves and taxing stock that doesn't. That's the whole reason sell-through rate became a first-class buying signal this year — a product with a great ROI on paper can still lose money if it sits.
How to keep storage fees near zero
You mostly avoid storage fees by buying well, not by managing warehouses:
- Size your buys to about a month of sales. If a listing sells ~30 units a month and you're sharing it with other sellers, buying 200 units guarantees months of storage and surcharge risk.
- Read demand before you buy. Use Best Sellers Rank (within its category), estimated monthly sales, and the number of FBA sellers on the listing to judge how fast your stock will actually clear. Our good ROI and BSR guide sets sensible targets.
- Avoid parking bulky stock over Q4 unless it'll sell through peak.
- Clear or remove slow stock before it ages into the surcharge bands.
The cleanest way to fold this into a buying decision is to check profit and velocity at the point of purchase. The Axivelo app puts net profit, ROI, your maximum buy price and the demand signals (BSR, estimated monthly sales, FBA seller count, price history) on one screen from a barcode scan, so you can avoid the slow-moving stock that generates storage fees in the first place. To pressure-test the profit side, use the free FBA calculator, and for the full fee picture see Amazon FBA fees explained.
Buy stock that actually moves
Axivelo shows net profit, ROI and demand signals on a barcode scan, so you avoid the slow stock that racks up storage fees. Pressure-test any deal in the free FBA calculator.
Open the free FBA calculatorFAQ
How much are Amazon FBA storage fees in the UK?
Monthly storage is charged per cubic foot — roughly £0.78–£2.40 per cubic foot for standard-size items and less for oversize — with higher rates in the October–December peak. Long-held stock also attracts an aged-inventory surcharge, and holding a lot of stock relative to sales can trigger a storage-utilisation surcharge. Check current rates in Seller Central.
What is the Amazon aged-inventory surcharge?
It's an extra monthly charge on units that have been stored for a long time, on top of the base storage fee. It rises the longer stock sits — from a couple of pounds per cubic foot in the 271–365 day bands to around £5.71 per cubic foot per month for non-media stock stored over a year. It's designed to push sellers to clear slow inventory.
How do I avoid Amazon storage fees?
Buy to your sell-through: size purchases to roughly a month of a listing's sales, read demand (BSR, estimated monthly sales, competing FBA sellers) before buying, avoid parking bulky stock over the Q4 peak, and clear or remove slow units before they age into the surcharge bands. Favouring fast-moving stock keeps storage costs close to zero.
Are Amazon storage fees higher at Christmas?
Yes. Amazon charges higher per-cubic-foot storage rates during the October–December period because fulfilment-centre space is in high demand before the holidays. Slow stock left in storage over Q4 costs noticeably more than the same stock in, say, February.
UK Amazon FBA sellers — we built Axivelo after one too many trips juggling Keepa, a calculator and a spreadsheet halfway down a B&M aisle. Now it shows profit, ROI, MAX PAY and demand on every in-store scan.