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If you're selling on Amazon.co.uk using FBA, storage fees are one of the most controllable costs in your business — yet many sellers leave money on the table by not actively managing them. This post breaks down how UK storage fees work, what to watch out for, and practical steps you can take right now to reduce your costs.

🗓️ Save the Date: Have questions on FBA?Join our FBA Ask Amazon event on April 29 to get answers directly from FBA partner teams!

Understanding UK FBA Storage Fees

Amazon charges monthly storage fees based on the daily average volume (measured in cubic feet) that your inventory occupies in UK fulfilment centres. There are two key fee types to know:

  • Monthly inventory storage fees — charged every month based on your average daily volume
  • Inventory storage overage fees — charged at £7.80 per cubic foot for any inventory that exceeds your storage limits

Storage fees are higher during peak months (October–December), so planning your inventory levels ahead of Q4 is especially important for UK sellers.

Why This Matters for Your UK Business

For UK sellers, storage costs directly affect your profitability — particularly if you're stocking seasonal products, managing slow-moving lines, or scaling up ahead of peak periods like Black Friday or Christmas. Keeping your Inventory Performance Index (IPI) scorehealthy is the best way to maintain access to sufficient storage capacity and avoid limits being applied to your account.

Five Practical Steps to Reduce Your Storage Costs

  1. Monitor your IPI score regularly Your IPI score reflects how efficiently you're managing FBA inventory. A higher score means better access to storage capacity. Check it weekly in Seller Central and act on the recommendations provided.
  2. Remove or liquidate slow-moving stock Don't let inventory sit idle. Use Amazon's removal order or liquidation options to free up space before long-term storage fees kick in. Removal order fees apply per unit, but they're often far less than ongoing storage costs.
  3. Send inventory in smaller, more frequent shipments Rather than sending large batches that sit in fulfilment centres, consider sending smaller quantities more frequently — especially for products with unpredictable demand.
  4. Use the FBA Revenue Calculator before you send Before sending a new product to FBA, use the Revenue Calculator to model your storage costs against expected sales velocity. This helps you avoid sending products that won't turn quickly enough to justify the fees.
  5. Plan ahead for peak season Storage fees increase significantly in Q4. Review your inventory levels in August and September, and use Amazon's restock recommendations to send only what you're confident will sell through before the new year.

Useful Resources for UK Sellers

📋 FBA Capacity Limits

💰 FBA Inventory Storage Overage Fees

📊 Monthly Inventory Storage Fees

🔄 Long-Term Storage Fees

🧮 FBA Revenue Calculator

_________________________________________________________________________

💬 Join the Conversation: We'd love to hear from you!

🗣️ What strategies have worked best for you in managing FBA storage costs in the UK?

🗣️ Have you found a particular product category or season where storage fees caught you off guard?

Share your experience below — your insight could help a fellow UK seller avoid a costly mistake. 👇

Have a question about FBA fees or inventory management? Drop it in the comments and let's work through it together.

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@Seller_XUNeUuvrQDpgP@Seller_GEZPMc4CeQfh6@Seller_Huz6FT08OxHAR@Seller_hnDMgUKxMh1V4@Seller_Udi0JNbTrsmUV@Seller_mIRnuhdx7l5sN

Case ID : 11654640052

So, I sold a valuable Lego Set on Amazon in Mid August through FBA, which the seller returned to Amazon 4 days later. It left Amazon as Brand New and was returned as Used - Poor (unsellable). A return request was made to return the item to me, which Amazon cancelled nearly a month later and I had to raise a new Return Request. The item I finally received back yesterday was missing all the mini-figures, the sticker sheet and, out of the 24 bags that were originally in the set, only 16 were returned and most of those have been opened, anything of any value removed and then heat sealed back up. In all, about £500.00 worth of parts have been removed.

Obviously, I have raised a complaint with Amazon but, get this, since the item was sold, Amazon have decided they no longer sell the set and removed it from their website on 16/09/25 - about a month after the item was purchased and returned to them and whilst awaiting return of the item under the original return request. So now I am being told that, because the item is not allowed to be sold on their site, they are unable to process reimbursements as it is a prohibited item!

I'm not sure why they suddenly decided the set couldn't be sold on their site but apparetly it was due to safety and/or non-compliance issues - it's a Lego set so I'm sure it shouldn't have any issues anyway - but that's beside the point as this was decided nearly a month after the item was sold on their site!

This basically means the buyer can continue to rip of vendors on Amazon and Amazon can't be bothered to even look into this or even look to see whether the buyer has repeatedly ordered expensive Lego sets and then returned then a few days later as "damaged".

I'd appreciate anyone else who have had similar issues to this letting me know if anything was ever resolved.

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Forums Feedback Request: Tell Us How We’re Doing!
by Seller_xkwDczt8sPSmx
Amazon replied

Hi sellers! 👋

We just have a quick question for you: Did you get what you need from the Seller Forums today?

If the forums helped you, please click the black thumbs-up button at the bottom of this post, and if not, please click the thumbs-down button — it’s that simple!

If you didn’t get what you needed today, we’d also love it if you could reply to this post letting us know what we’re missing, or what we could improve. Your feedback helps us optimize the forums to help you find solutions faster and grow your business.

Please keep in mind we can’t address individual cases or questions on this thread, but if you have a question, please use the “New Discussion” button above (or the "New" button on a mobile device), to post in the category related to your question. This will allow you to get help or advice from our community of sellers and Amazon community managers.

Thanks so much for your feedback, and for being the best part of the Amazon Seller Forums!

2 votes
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Ungating Issues With Seller Support
by Seller_5S24UsCBMtGIx

Having issues with getting ungated on every single brand that requires a invoice,

Becoming a bit of a joke considering you provide exactly whats required then its rejected for a completely unrelated reason

Emails to MD dont get anywhere past the "Will respond with 24 hours" automatic response

Getting to a point where its impossible to sell on this platform

This isnt a one off issue either having it accross multiple brands with invoices from different suppliers

Something seriously needs to be done by Amazon.

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Amazon return SCAM
by Seller_ofkaq656XneBp

Amazon has accustomed buyers to the idea of ​​choosing a false reason for returning an item, thus providing them with free returns service, which the seller pays for. Amazon's 6% rate, eBay's 1% rate, SCAM.

11 votes
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Better products
by Seller_G6JP88x2TgpOx
Amazon replied

Which type of goods do the esteemed French buyers prefer?

3 votes
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I've dabbled with Amazon Ads for a few months and I generally spent about half what the sales bring in. I've just checked today and my £30 daily spend has spent £55 (not even sure how that's possible) and my ads are now costing more than the sales they are bringing in. This has never happened to me before and my ROAS has completely tanked.

Has there been a change recently? Sales across FBA and FBM have been extremely down too. Usually around £500-£1500 sales a day and for the first time since we started on Amazon, we've actually had completely ZERO sales days.

Luckily we sell more on other platforms but it's very odd and feels extremely sudden.

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🚚 Ask Amazon OTDR Recap: Your Questions Answered
by Seller_b91S9zQ2eKxLt
Amazon replied

Dear Sellers,

You shared many questions about the new On-Time Delivery Rate (OTDR) policy in our recent Ask Amazon event. To summarize the event, I've compiled a FAQ based on your most common queries.

1. What is the purpose of the policy launch?

The policy aims to enhance the Amazon customer experience by improving the accuracy of delivery promises and reducing late deliveries.

2. How is the OTDR metric calculated?

It is the percentage of tracked seller-fulfilled units delivered to customers by the promised delivery date. Starting September 16, 2025, sellers will need to maintain a minimum 90% OTDR when fulfilling Fulfilled by Merchant orders on Amazon.co.uk. The new OTDR calculation is based on a unit level, not order level. This means larger orders will have a more significant impact on your OTDR than smaller ones.

3. Is there a minimum threshold for OTDR calculation?

Yes. OTDR is only calculated for sellers who have shipped 20 or more units during the 14-day measurement period. If you ship fewer than 20 units in this period, your will not be enforced for OTDR miss.

4. My carrier does not scan the package on delivery, how will this impact my OTDR? What about self-delivery orders? What if I do not use tracked services?

Only units with a valid delivery scan will be included in the OTDR metric calculation.

5. Why isn't using Buy Shipping alone enough to exempt units from OTDR calculation?

Buy-shipping alone does not ensure that accurate delivery promises are set up initially.

6. How do customer-related delivery issues affect OTDR?

If a buyer is not present on the delivery date or reschedules, it won't negatively impact your OTDR. The metric will consider either the first delivery attempt date or the customer's rescheduled date.

7. How can I account for customs clearance times in my delivery promises?

To manage variable customs clearance times, we recommend that you:

Note: Using all three tools together (Shipping Settings Automation, Automated Handling Time, and Buy Shipping) will result into your specific units meeting OTDR.

8. Are there exemptions for external factors affecting deliveries?

Yes, the policy includes exemptions for:

  • Major weather events
  • Carrier issues, labor strikes, or elections
  • Customer availability issues

This means that you will not be enforced for orders missing OTDR for above reasons, even though they will still count against OTDR is the metric calculation.

If you believe your units were affected but not exempted (you have been enforced for those), contact Seller Support.

9. Why am I responsible for on-time delivery when it is the carrier that makes the delivery?

As a seller, you're responsible for choosing a reliable carrier and setting accurate delivery promise dates based on your chosen carrier's performance. This ensures customers receive realistic expectations for their deliveries.

-------------------------

As a reminder, you will start receiving informative warnings as of today with your current OTDR and recommendations on how to improve if your OTDR is under the expected thresholds, however, the policy enforcement will start February 2nd 2026.

The MFN team is also currently working on publishing a comprehensive FAQ in the Help pages.

Don't forget to 👍 this post if you found it helpful or 👎if you think I've missed important information. Also, if you have more questions about OTDR, please don't hesitate to share them in the comments below.

Your feedback helps us improve our seller resources!

Ange

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