Amazon FBA Fulfilment Fees for UK Sellers in 2026, by Size Tier

In brief: Amazon FBA fulfilment fees in the UK for 2026 are a flat charge per unit sold, set by size tier and shipping weight. They start at £1.83 for a light envelope up to 20 g and reach £13.04 for heavy oversize up to 31.5 kg. Special oversize costs more, from £16.22. Between 15 October 2026 and 14 January 2027 most parcel rates rise by 11p to 13p. A fuel and logistics surcharge applies on top: 1.5% since April, rising to 2% from 2 November 2026.

UK FBA fulfilment fees 2026 for envelopes and parcels

Fees per unit in pounds for UK FBA orders. Normal rates apply from 15 January to 14 October 2026. Peak rates run between 15 October 2026 and 14 January 2027.

Size tier (maximum size)	Shipping weight up to	Normal	Peak
Light envelope (33 × 23 × 2.5 cm)	20 g	1.83	1.83
	40 g	1.87	1.87
	60 g	1.89	1.89
	80 g	2.07	2.07
	100 g	2.08	2.08
Standard envelope (33 × 23 × 2.5 cm)	210 g	2.10	2.10
	460 g	2.16	2.16
Large envelope (33 × 23 × 4 cm)	960 g	2.72	2.79
Extra-large envelope (33 × 23 × 6 cm)	960 g	2.94	3.01
Small parcel (35 × 25 × 12 cm)	150 g	2.91	3.02
	400 g	3.00	3.11
	900 g	3.04	3.15
	1,400 g	3.05	3.16
	1,900 g	3.25	3.37
	3.9 kg	3.27	3.39
Standard parcel (45 × 34 × 26 cm)	150 g	2.94	3.05
	400 g	3.01	3.12
	900 g	3.06	3.18
	1,400 g	3.26	3.38
	1,900 g	3.48	3.61
	2.9 kg	3.49	3.62
	3.9 kg	3.54	3.67
	5.9 kg	3.56	3.69
	8.9 kg	3.57	3.70
	11.9 kg	3.58	3.71

A small parcel must also have a dimensional weight of 2.10 kg or less; a standard parcel, 7.96 kg or less. Parcels in some categories, including clothing, footwear, grocery and luggage accessories, have their own rates on the rate card, and the peak table excludes apparel.

Oversize FBA fees in the UK

Oversize rates stay the same during peak.

Size tier	Base fee	Covers up to	Each extra kg
Small oversize	£3.49	760 g	See rate card
Standard oversize light	£4.35	760 g	£0.15
Standard oversize large	£5.67	760 g	£0.07
Standard oversize heavy	£6.58	15.76 kg	£0.08
Bulky oversize	£10.20	760 g	£0.24
Heavy oversize	£13.04	31.5 kg	£0.09
Special oversize	£16.22	30 kg	Banded to 60 kg, then £0.35

Products with lithium batteries, and dangerous goods, pay £0.10 extra per unit. Cheap, light items may qualify for lower rates under Low-Price FBA.

How Amazon picks your shipping weight

Dimensional weight is a size-based weight: length × width × height in cm, divided by 5,000. For parcels and most oversize tiers, Amazon charges on whichever is higher: the actual unit weight or the dimensional weight. Envelopes, Low-Price FBA, special oversize and those listed categories use the unit weight only.

So a light product in a bulky box can be charged as if it were heavy.

A worked example

Illustrative figures at normal rates: a product weighs 1.2 kg and ships in a 30 × 20 × 15 cm box.

• Before: the box is too deep for a small parcel, so it's a standard parcel. Dimensional weight is 30 × 20 × 15 ÷ 5,000 = 1.8 kg, above the 1.2 kg unit weight. The 1,900 g band costs £3.48.
• After: a 30 × 20 × 11 cm box fits the small parcel tier. Dimensional weight is 30 × 20 × 11 ÷ 5,000 = 1.32 kg, so the 1,400 g band applies at £3.05.
• Saving: £3.48 − £3.05 = £0.43 per unit, or about £0.44 once the 2% surcharge is added.
• Over a month of 2,000 units: 2,000 × £0.43 × 1.02 = £877.20, before VAT.

What it means for your bookkeeping

• One account for fulfilment. Post the per-unit fee, the peak uplift and the fuel surcharge to the same FBA fulfilment account, so margins stay comparable. Our fuel surcharge increase article explains the rise to 2%.
• VAT is reclaimable. UK FBA fees carry 20% UK VAT. If you're VAT-registered, you can reclaim it. See reclaiming VAT on Amazon seller fees.
• Expect two rates in one settlement. A settlement spanning 15 October or 14 January holds fees at both normal and peak rates. The Amazon peak season 2026 fees article covers the dates.
• Check the fee per unit. If a unit's fee jumps, Amazon may have measured the product differently. Compare the fee in the settlement with this table.
• Keep the dated rate card as evidence of which rate applied when.

Do you need to do anything?

Check the tier and weight Amazon holds for your best sellers, starting with any product just over a band limit, which costs a few pence more on every unit sold.

How TrueBooks helps

TrueBooks brings each settlement into Xero and posts FBA fees on their own line with the right UK VAT. That holds even when peak and normal rates share a settlement. See how settlements post to Xero.