SELLERSTACK AMAZON FBA GUIDE · UPDATED FOR 2026
Amazon FBA Storage Fees UK 2026
Understand Amazon UK monthly storage fees, Q4 rates, storage utilisation surcharges and aged inventory charges — then decide when stock should be held, repriced, removed or cleared.
Amazon FBA can remove much of the day-to-day work involved in storing, packing and dispatching orders, but inventory sitting inside Amazon’s fulfilment network has an ongoing cost.
For UK sellers, that cost can include the normal monthly storage fee, higher October-to-December rates, a storage utilisation surcharge where eligible inventory is moving too slowly relative to the space it occupies, and an aged inventory surcharge once qualifying units have remained in FBA long enough.
That means the important question is not simply: “Will this product make a profit when it sells?”
You also need to ask how much warehouse space it consumes, how quickly it is likely to sell, how long your money could remain tied up and what happens if demand is weaker than expected.
This guide explains the current Amazon UK FBA storage structure and gives you a practical framework for deciding when to hold, reprice, stop replenishing, remove or clear slow inventory.
How Do Amazon FBA Storage Fees Work in the UK?
Amazon charges FBA inventory storage monthly according to the average daily volume of warehouse space occupied by your inventory.
In the UK, storage volume is measured in cubic feet and uses the size of each unit when properly packaged and ready to ship.
For standard-size non-dangerous products in most categories, Amazon’s current base storage rate is £0.76 per cubic foot per month from January to September and £1.51 from October to December.
Additional charges can apply where eligible inventory has a storage utilisation ratio above 22 weeks or has been stored for more than 241 days.
Important: Amazon Fees and Inventory Rules Can Change
Amazon can change storage rates, surcharge thresholds, size classifications, programme rules and eligibility conditions.
This guide uses Amazon UK information reviewed in October 2026. Check the current figures shown by Amazon and within Seller Central before making a significant inventory, pricing, removal or fulfilment decision.
Check the Full Product Economics Before Sending Stock to FBA
Use the SellerStack Amazon FBA & FBM Fee & Profit Calculator to estimate Amazon fees, fulfilment costs, storage, profit, margin and ROI before committing money to inventory.
1. The Four FBA Inventory Costs Sellers Should Separate
Amazon inventory cost is not represented by one single storage fee.
Separate these four layers before deciding whether slow stock is still economically sensible.
1. Base Monthly Storage
The recurring cost of keeping FBA inventory inside Amazon’s fulfilment network.
It is primarily driven by the amount of space the packaged inventory occupies.
2. October–December Rate
Amazon charges a higher base storage rate during the final three months of the year.
The effect can be significant where substantial inventory remains in FBA through Q4.
3. Storage Utilisation Surcharge
Eligible sellers can pay an additional charge where the amount of inventory stored is high relative to shipped volume.
4. Aged Inventory Surcharge
Qualifying stock stored for more than 241 days can attract an additional age-related charge.
The key distinction
Base storage
+
possible utilisation surcharge
+
possible aged inventory surcharge
=
total storage pressure
A product therefore needs to be judged on more than its headline profit per sale.
2. Amazon FBA Monthly Storage Fees UK 2026
Amazon’s current UK monthly storage rates vary according to product type, size classification and time of year.
| Inventory type | January–September | October–December |
|---|---|---|
|
Standard-size clothing, accessories, eyewear,
footwear, rucksacks and handbags
Non-dangerous goods |
£0.62 / ft³ / month | £0.82 / ft³ / month |
|
Standard-size — all other categories
Non-dangerous goods |
£0.76 / ft³ / month | £1.51 / ft³ / month |
|
Oversize
Non-dangerous goods |
£0.55 / ft³ / month | £0.87 / ft³ / month |
| Standard-size dangerous goods | £0.74 / ft³ / month | £1.30 / ft³ / month |
| Oversize dangerous goods | £0.70 / ft³ / month | £1.11 / ft³ / month |
These Are Storage Fees, Not the FBA Fulfilment Fee
Monthly inventory storage is separate from the per-unit FBA fulfilment charge that applies when Amazon picks, packs and dispatches an order.
When calculating profitability, include the relevant storage cost alongside referral fees, fulfilment, stock cost, inbound shipping, preparation, advertising and any other applicable expenses.
3. How Does Amazon Calculate FBA Storage?
Amazon calculates monthly inventory storage using the daily average volume of the inventory held in its fulfilment centres during the month.
For UK inventory, that volume is measured in cubic feet.
Amazon bases the measurement on the unit’s size when it is properly packaged and ready to ship to a customer.
Simplified Storage Calculation
Average daily inventory volume
×
applicable monthly storage rate
=
estimated monthly base storage fee
That is why two products with the same selling price can behave very differently inside FBA.
A compact £30 item may require very little storage space. A bulky £30 item can occupy considerably more cubic volume and therefore create a higher storage burden even where both products produce the same profit when sold.
SellerStack Tip: Check Packaged Dimensions, Not Just Weight
Weight matters elsewhere in Amazon’s fee structure, but FBA inventory storage is driven by the physical volume occupied by the packaged unit.
A lightweight product can still be expensive inventory if it takes up a lot of space and sells slowly.
100 Units Occupying 0.1 Cubic Feet Each
Imagine 100 standard-size non-dangerous units in a category using the £0.76 January-to-September rate.
- 100 units × 0.1 ft³ = 10 ft³
- 10 ft³ × £0.76 = £7.60
The simplified estimated base monthly storage cost would therefore be £7.60.
4. Why FBA Storage Costs More From October to December
Amazon applies higher base inventory storage rates during October, November and December.
The difference is particularly noticeable for standard-size, non-dangerous products outside the selected clothing and accessory categories.
Their base rate rises from:
£0.76 / ft³
→
£1.51 / ft³
That does not mean sending inventory to FBA for Q4 is automatically a bad idea.
A seasonal product with strong November and December demand can move through the fulfilment network quickly enough for the higher rate to remain commercially sensible.
The risk appears when sellers send deep seasonal stock without enough realistic demand to sell it during the period for which it was bought.
SellerStack Insight: Q4 Stock and Q4 Overstock Are Different
Buying more because demand genuinely increases can make sense.
Buying more simply because “Christmas is coming” without modelling sales velocity can leave you carrying expensive leftover stock into the following year.
The Same 10 Cubic Feet During Q4
Take the same 10 cubic feet of standard-size non-dangerous inventory used in the previous example.
- January–September: 10 × £0.76 = £7.60
- October–December: 10 × £1.51 = £15.10
The inventory has not become larger.
The difference comes from the seasonal base storage rate.
5. What Is the Amazon FBA Storage Utilisation Surcharge?
The storage utilisation surcharge is designed to charge eligible sellers more where a relatively large volume of inventory is being stored compared with the volume being shipped.
Amazon calculates the storage utilisation ratio using:
Storage Utilisation Ratio
Average daily inventory volume
÷
average daily shipped volume during the previous 13 weeks
The current surcharge begins once the applicable ratio rises above 22 weeks.
| Storage utilisation ratio | Standard size | Oversize |
|---|---|---|
| 22 weeks or less | No surcharge | No surcharge |
| Over 22 to 28 weeks | £0.42 / ft³ | £0.12 / ft³ |
| Over 28 to 36 weeks | £0.78 / ft³ | £0.25 / ft³ |
| Over 36 to 44 weeks | £1.04 / ft³ | £0.45 / ft³ |
| Over 44 to 52 weeks | £1.41 / ft³ | £0.62 / ft³ |
| Over 52 weeks | £2.29 / ft³ | £0.81 / ft³ |
The Storage Utilisation Surcharge Does Not Apply to Every Seller
Amazon’s current rate card states that the surcharge does not apply to:
- new sellers during the applicable introductory period
- sellers using an Individual selling account
- sellers with less than 25 cubic feet of daily inventory volume
Amazon currently defines a new seller for this purpose as someone whose first shipment to a fulfilment centre was less than 52 weeks ago.
Selected Categories Are Treated Differently
Amazon’s rate card calculates the storage utilisation ratio for product size tiers outside clothing, eyewear, shoes and bags.
Check your current Seller Central information where category treatment affects your inventory.
A high utilisation ratio is more than an Amazon-fee warning.
It may also indicate that too much purchasing capital is sitting in inventory relative to actual customer demand.
How Quickly Is Your Wider Stock Turning?
Use the SellerStack Stock Turnover Calculator to estimate how efficiently inventory is moving and how long purchasing capital is typically tied up.
6. Amazon FBA Aged Inventory Surcharge UK 2026
Amazon applies an additional aged inventory surcharge to qualifying units that remain inside its fulfilment network for extended periods.
Under the current UK fee structure, the surcharge begins once qualifying inventory has been stored for more than 241 days.
Important 2026 Change: Do Not Use the Old 181-Day Figure
Older Amazon information and older SellerStack content may refer to aged-inventory charges beginning from 181 days.
Amazon’s current UK FBA rate card effective 1 July 2026 uses 241 days as the starting point for the current aged inventory surcharge structure.
| Inventory age | UK aged inventory surcharge |
|---|---|
| 241–270 days | £1.18 / ft³ / month |
| 271–300 days | £3.14 / ft³ / month |
| 301–330 days | £3.26 / ft³ / month |
| 331–365 days | £3.41 / ft³ / month |
| 365–455 days | £5.71 / ft³ or £0.20 per unit, whichever is greater |
| 455+ days | £6.14 / ft³ or £0.25 per unit, whichever is greater |
The First Aged-Inventory Band Has Category Exclusions
Amazon’s current rate card excludes Clothing and Accessories, Footwear, Rucksacks and Handbags, Luggage, Jewellery and Watches from the 241–270 day surcharge band.
Later aged-stock rules can still apply, so sellers in those categories should not assume old inventory is completely exempt.
Aged Inventory Does Not Replace Base Storage
Base monthly storage
+
aged inventory surcharge
=
combined storage charge
SellerStack Tip: Do Not Wait Until Day 241
If an ASIN has already sold much more slowly than planned after 90, 120 or 180 days, you already have useful information.
Review replenishment, price, advertising and exit options before the inventory reaches a more expensive age band.
How Much Money Is Tied Up in Slow Stock?
Use the SellerStack Dead Stock Calculator to measure the cost value sitting in ageing or inactive inventory and estimate possible recovery scenarios.
7. Amazon FBA Storage Fee Examples
The following examples are simplified planning illustrations.
They exclude referral fees, fulfilment charges, VAT treatment, advertising, stock cost and other potential Amazon or business costs.
Normal Storage
100 eligible units occupy 10 cubic feet in total during January to September.
At £0.76 per cubic foot:
10 × £0.76 = £7.60
The Same Stock in Q4
The same 10 cubic feet remain in FBA during October to December.
At £1.51 per cubic foot:
10 × £1.51 = £15.10
First Aged-Inventory Band
Assume qualifying stock outside the first-band category exclusions occupies 10 cubic feet and reaches 241–270 days.
The aged surcharge alone would be:
10 × £1.18 = £11.80
30-Week Utilisation Ratio
Assume eligible standard-size stock occupies 10 cubic feet and the seller’s utilisation ratio is 30 weeks.
The relevant utilisation surcharge would be:
10 × £0.78 = £7.80
What If Base Storage, Age and Utilisation All Apply?
Imagine 10 cubic feet of qualifying standard-size non-dangerous inventory during January to September.
The stock falls into the 241–270 day aged band and the seller has a 30-week storage utilisation ratio.
- Base storage: 10 × £0.76 = £7.60
- Aged inventory surcharge: 10 × £1.18 = £11.80
- Storage utilisation surcharge: 10 × £0.78 = £7.80
Simplified combined storage layers: £27.20.
That is before considering the money tied up in the inventory itself.
The Fee Is Only Part of the Slow-Stock Cost
If £2,000 of purchasing capital is sitting in products that are barely selling, the problem is not limited to a monthly Amazon fee.
That £2,000 also cannot currently be used to source another product with stronger demand and better capital turnover.
Can You Afford to Put More Money Into Stock?
Use the Inventory Cashflow Planner to forecast how existing inventory, new purchases, expected sales and business costs could affect your available cash.
8. The SellerStack FBA Stock Decision
When FBA inventory starts moving more slowly than expected, do not begin with the storage charge alone.
Work through four questions in order.
Sell-Through → Space → Age → Exit
-
Is the inventory selling fast enough?
Compare actual recent sales with the rate you expected when the stock was purchased. -
How much FBA space is it consuming?
Large, low-value inventory can create a poor storage-to-profit relationship even before it becomes aged stock. -
How old is the inventory?
Check how long the units have remained in FBA and whether another fee band is approaching. -
What exit protects the most remaining value?
Compare holding, repricing, advertising, stopping replenishment, removing, merchant fulfilling or liquidating.
This changes the decision from:
“How do I avoid an Amazon fee?”
to:
“What should I do with this inventory from this point forward?”
| Inventory situation | Possible response |
|---|---|
| Fast selling and healthy margin | Continue controlled replenishment |
| Selling, but slower than forecast | Reduce future order quantity and review price |
| Good margin but bulky and slow | Compare FBA with FBM or hybrid fulfilment |
| Approaching an aged-stock band | Review price, ads, replenishment and exit options |
| Weak margin and ageing inventory | Consider clearance, removal or liquidation |
| Large stock holding with limited demand | Stop replenishing before buying more |
These are planning responses rather than universal rules. Product economics, demand, seasonality, storage alternatives and business objectives can change the best decision.
9. How to Reduce Amazon FBA Storage Costs
Send Smaller Initial Quantities
A new ASIN does not automatically need several months of stock.
A smaller initial shipment can help validate demand, conversion, selling price and returns before more capital is committed.
Replenish From Real Sales Data
Once a product has a sales history, base future stock levels on realistic demand rather than the volume you hope the listing will eventually achieve.
Strong sellers can justify deeper replenishment. Slow sellers normally require tighter purchasing.
Stop Reordering Before You Start Clearing
A common inventory mistake is continuing to buy a product because it still generates occasional sales.
If the current stock already represents many months of demand, another order can enlarge the problem.
Review Bulky Low-Margin Products More Aggressively
A product can be lightweight and still occupy substantial warehouse space.
Compare the profit generated by each unit with the volume of FBA capacity required to hold it.
Reprice With a Floor
Lowering the selling price can improve sell-through, but a faster sale is not automatically a better financial result.
Know how far the price can fall before too much of the remaining contribution disappears.
Know Your Break-Even Price Before You Discount
Use the SellerStack Break-Even Calculator to estimate the selling-price floor created by your entered costs and fees.
Use Advertising Only Where the Economics Still Work
Advertising can help a viable listing generate more sales, but additional advertising cost also reduces the contribution remaining from each order.
Spending £5 simply to avoid £1 of future storage is not a sensible trade unless the advertising creates enough additional value elsewhere.
Consider a Removal Order
Inventory does not have to remain inside FBA indefinitely.
Removing units may allow you to store them elsewhere, use merchant fulfilment or sell through another suitable channel.
Removal itself has a cost, so compare that cost with the likely future storage burden and the realistic value of the stock.
Consider Liquidation or Disposal Where Appropriate
Some stock reaches a point where recovering part of the remaining value is economically stronger than paying to hold it while waiting for an uncertain future sale.
The correct comparison is not: “Can I still sell this eventually?”
It is: “Which available option produces the best outcome from today?”
10. Can Amazon FBA New Selection Reduce Storage Costs?
Potentially.
Amazon’s FBA New Selection programme provides introductory benefits for eligible products that are new to FBA.
Amazon currently advertises:
- free monthly storage for 120 days for up to 100 qualifying standard-size units
- free removals for 180 days for eligible standard-size units
- free return processing for up to 20 units of each eligible standard-size parent ASIN in clothing and shoes
- additional benefits for eligible branded ASINs and qualifying sellers
SellerStack Tip: Use the Benefit Window to Test Demand
Free storage does not make excess inventory economically sensible.
Use the introductory period to find out whether the ASIN has enough demand to justify continued replenishment once ordinary storage economics apply.
Check Current Eligibility Before Relying on the Benefit
New Selection eligibility, unit limits, benefit periods and programme terms can change.
Confirm the current ASIN and seller eligibility in Amazon’s programme information and Seller Central before building the benefit into a sourcing calculation.
11. When Slow Stock May Be Better Suited to FBM
FBA is not automatically the best fulfilment method for every Amazon product.
A compact product with dependable daily sales may fit Amazon’s fulfilment model extremely well.
A large specialist product selling only a few times per month can produce a very different storage equation.
FBA May Fit Better When
- sales velocity is dependable
- the product is relatively compact
- margin comfortably supports FBA costs
- Prime fulfilment strengthens the offer
- inventory can be replenished without overstocking
FBM May Deserve a Closer Look When
- the product sells slowly or irregularly
- the item occupies substantial storage space
- you already have economical storage available
- inventory is seasonal or being tested
- you want tighter control over stock exposure
FBM Does Not Mean Storage Is Free
Moving inventory out of FBA removes Amazon’s FBA storage structure, but your own space, packaging, labour, shipping and operational workload still have an economic cost.
Compare the complete fulfilment models rather than comparing one visible Amazon fee with zero.
Compare Amazon FBA and Merchant Fulfilment
See how storage, fulfilment responsibility and product characteristics change the decision between FBA and FBM.
12. What Should FBA Sellers Monitor Each Month?
Good FBA inventory management is not a once-a-year clean-up exercise.
Review the numbers often enough to spot a slowing ASIN before it becomes an expensive problem.
- units currently in FBA
- recent sales velocity
- weeks or months of stock remaining
- inventory age
- packaged product dimensions
- current storage-utilisation information where applicable
- current selling price and contribution per unit
- advertising cost required to generate sales
- units already ordered or inbound
- seasonal demand changes
- removal, liquidation or alternative fulfilment options
Do Not Review FBA Inventory Without Looking at Inbound Stock
A listing may appear to have a manageable quantity currently available while another large shipment is already on the way.
Include existing, inbound and planned inventory when deciding whether to replenish again.
Want the Full Amazon Selling Process?
Read the SellerStack Amazon UK guide for account setup, FBA and FBM, fees, sourcing, product research, pricing, inventory management and profitability.
13. Common Amazon FBA Storage Mistakes
Seven Inventory Decisions That Can Increase Storage Pressure
-
Sending too much stock before demand is proven.
A supplier discount does not automatically justify six months of FBA inventory. -
Checking weight but ignoring volume.
A light product can still occupy substantial warehouse space. -
Forgetting the October-to-December rate.
Q4 base storage can be materially higher than the January-to-September rate. -
Waiting for an aged surcharge before acting.
Slow sales usually become visible long before inventory crosses the current 241-day threshold. -
Ignoring storage utilisation.
Eligible sellers can face another storage layer where inventory volume is high relative to shipped volume. -
Reordering because the ASIN still sells occasionally.
A product can continue selling while already carrying far more stock than its demand justifies. -
Clearing stock without knowing the price floor.
Reducing future storage cost is useful only if the clearance decision produces a better overall financial result.
14. SellerStack FBA Storage Checklist
Before sending more inventory into FBA, work through this list.
- Estimate realistic monthly sales rather than best-case demand.
- Check the packaged dimensions used for the product.
- Calculate the complete Amazon profit before buying quantity.
- Decide how many weeks of stock are actually needed.
- Allow for slower-than-expected sales.
- Consider the October-to-December storage rate where relevant.
- Check whether the storage utilisation surcharge could apply.
- Monitor inventory age before the first aged-stock band.
- Include units already inbound before placing another order.
- Define an exit point before inventory becomes a serious problem.
- Compare FBA with FBM where slow or bulky stock makes storage inefficient.
- Replenish deeper only after the ASIN proves that the economics work.
Which Situation Sounds Most Like Your FBA Stock?
It is selling quickly and margin is healthy:
Continue monitoring and replenish in quantities supported by
realistic demand.
It is still profitable but selling slowly:
Reduce future purchasing, check weeks of cover and compare the
cost of holding with a controlled price reduction.
It is bulky and only sells occasionally:
Compare the economics of FBA against your own storage and FBM
fulfilment.
It is ageing and the margin has become weak:
Stop treating the original expected profit as recoverable.
Compare repricing, removal, liquidation and other realistic exits
from today’s position.
You keep running out of fast-moving stock:
Do not overcorrect by sending excessive quantities.
Increase replenishment based on measured sales velocity and
realistic lead times.
Frequently Asked Questions
How often does Amazon charge FBA storage fees?
Amazon charges inventory storage monthly based on the daily average volume of inventory occupying its fulfilment centres during the calendar month.
Are Amazon FBA storage fees higher at Christmas?
Amazon uses higher base storage rates from October through December. For standard-size non-dangerous products in most categories, the current UK rate rises from £0.76 per cubic foot to £1.51 per cubic foot.
When does Amazon UK’s aged inventory surcharge start?
Under Amazon’s current UK FBA rate card effective July 2026, qualifying aged inventory begins attracting a surcharge from the 241–270 day band.
Is the aged inventory surcharge instead of normal storage?
No. Amazon states that the aged inventory surcharge is additional to ordinary monthly storage fees.
Does Amazon charge storage according to product weight?
Monthly FBA inventory storage is based on the physical volume of the properly packaged inventory. Weight matters elsewhere in the FBA fee structure, but storage uses cubic volume.
What is Amazon’s storage utilisation surcharge?
It is an additional storage charge that can apply to eligible sellers where inventory volume is high relative to shipped volume. Amazon’s current UK threshold begins above a 22-week storage utilisation ratio.
Does the storage utilisation surcharge apply to new sellers?
Amazon’s current rate card excludes qualifying new sellers, Individual selling accounts and sellers below 25 cubic feet of daily inventory volume. Check Seller Central for the rules currently applicable to your account.
Can new-to-FBA products receive free storage?
Eligible new-to-FBA products can receive introductory benefits through Amazon’s FBA New Selection programme. Current public information includes free storage for a limited number of eligible units and a limited period, subject to programme conditions.
Is FBA suitable for slow-selling products?
It can be, but storage economics become more important as sales velocity falls. Bulky, seasonal or specialist products may deserve an FBA-versus-FBM comparison before substantial stock is sent to Amazon.
Should I remove FBA inventory before it becomes aged?
Not automatically. Compare expected future profit with storage, removal costs, sales velocity and realistic alternative uses of the inventory before deciding.
Does lowering the price always make sense for slow FBA stock?
No. A lower price may accelerate sales but also reduce the contribution recovered from each unit. Compare the discount with the likely future holding cost and your break-even position.
How much FBA stock should I send to Amazon?
There is no universal quantity. Use realistic sales velocity, replenishment lead time, seasonality, product size, margin and downside risk rather than choosing a fixed number of months of stock for every ASIN.
FBA Storage Is Really an Inventory-Turnover Decision
The ordinary monthly storage fee is rarely the whole problem.
Storage becomes more damaging when too much inventory enters the fulfilment network, products consume substantial space or sales are too slow to convert the stock back into cash.
Good FBA inventory management therefore starts before you buy.
Estimate demand. Check packaged dimensions. Calculate the complete Amazon margin. Decide how much stock the sales can realistically support.
Once inventory enters FBA, keep watching four things:
Sell-through → Space → Age → Exit.
If those numbers stop making sense, act while you still have several options rather than waiting for storage charges to make the decision for you.
Calculate the Amazon Margin Before You Buy More Stock
Use the SellerStack Amazon FBA & FBM Fee & Profit Calculator to model your selling price, stock cost, Amazon fees, fulfilment, storage, profit margin and ROI before increasing inventory.
Open Amazon FBA & FBM Calculator →Official Sources and Important Information
The fees and explanations in this guide were reviewed against current Amazon UK information, including:
- Amazon UK — Selling Fees and FBA Storage Fees
- Amazon Europe FBA Rate Card — Effective 1 July 2026
- Amazon Seller Central — Inventory and Storage Fee Guidance
- Amazon UK — FBA New Selection Programme
Amazon FBA Fee Accuracy & Important Information
Last reviewed: October 2026.
Amazon storage rates, surcharge thresholds, size classifications, programme benefits and inventory policies can change. SellerStack reviews this content periodically, but you should check current Amazon and Seller Central information before making an important inventory, pricing, removal or fulfilment decision.
This guide provides general planning information for UK Amazon sellers. Actual charges can depend on the product, dimensions, inventory age, category, seller account, fulfilment arrangement and applicable Amazon programmes.
SellerStack is independent and is not affiliated with or endorsed by Amazon.
