Amazon's 2025 FBA Parcel Fee Changes: Unit Weight and Seven New Size Tiers

In brief: Amazon FBA parcel fees changed through 2025, as Amazon moved a growing list of categories onto a simpler way of pricing parcels. Instead of charging on whichever was greater — the item's actual weight or its dimensional weight — it now charges on unit weight only, and it split the old "small" and "standard" parcel tiers into seven narrower tiers. It started with clothing, accessories, backpacks and handbags on 15 May 2025 and extended to 14 more categories from 15 October 2025. Amazon expected most affected items to pay less.

Why FBA parcel fees changed in 2025: dimensional weight

Dimensional weight is a notional weight worked out from a parcel's size. Light but bulky items — a padded jacket, a pushchair accessory, a rug — used to be charged as if they were heavier than they are. Pricing on actual unit weight removes that penalty, which is why bulky, light products gain the most.

Timeline

Date	What changed	Where
15 May 2025	Unit weight only + seven size tiers for apparel (clothing, accessories) and bags (backpacks, handbags)	UK, Germany, France, Italy, Spain
15 October 2025	Same approach extended to 14 further categories	UK, Germany, France, Italy, Spain
1 November 2025	All of the above rolled out to the smaller EU stores	Netherlands, Belgium, Sweden, Poland, Ireland

Which categories were added in October 2025

Grouped by type:

• Home: home linen and rugs, mattresses, furniture accessories, door/window/shower accessories, home adhesives and cable ties.
• Family and pets: baby pushchairs and safety equipment, pet clothing and food.
• Apparel-like: footwear, eyewear protection, reusable work and safety gloves, luggage accessories.
• Supplies: grocery and gourmet, packing material, printer and scanner accessories.

The new pricing applied however the stock was fulfilled — from a local warehouse, through Pan-EU or EFN, across the UK–EU border via Remote Fulfilment, or through Ships in Product Packaging — and it also fed into the returns processing fee. Low-price FBA and oversize items were left out.

The returns processing fee and bags

Backpacks and handbags had briefly faced a returns processing fee for high-return products from 1 February 2025. In May 2025 Amazon exempted them and said it would waive or refund any such fees already charged. From 1 November 2025 the fee returned for bags whose return rate is above the category threshold, but only on orders shipped from the five largest European stores (UK, DE, FR, IT, ES).

A worked example

A seller ships 1,500 padded jackets a month. If moving from dimensional to unit weight drops each one by a tier and saves, say, 30p per unit, that is £450 a month less in FBA fees. Use the Revenue Calculator to check the real figure for your products — the saving depends on each item's size and weight.

What it means for your bookkeeping

• FBA fee lines shrink without any change in volume. From mid-May or mid-October 2025 (depending on category), fulfilment fees per unit fall for many products. Note the date so margin improvements aren't mistaken for pricing changes.

• Refunded returns processing fees. If you paid the returns processing fee on bags between February and May 2025, Amazon's refund will appear as a credit in a later settlement. Post it against the same fee account, not as income.

• Same VAT treatment. Fulfilment fees for UK sellers carry 20% UK VAT, reclaimable if you're VAT-registered — see reclaiming VAT on Amazon seller fees.

• Mixed settlements around the change dates. A settlement spanning 15 May or 15 October contains units at both the old and new fees. That's expected.

• Where it shows up. Fulfilment fees are deducted in the settlement — see Amazon FBA bookkeeping.

How TrueBooks helps

TrueBooks posts FBA fees and any fee refunds from every settlement to your fee accounts in Xero with the right UK VAT, so lower fulfilment costs show up in your margins automatically. See the Amazon Xero integration.