Amazon FBA Calculator UK

Calculate your Amazon FBA fees, costs and profit margins for the UK marketplace

FBA Profitability Calculator

How Amazon FBA Fees Work in the UK

Amazon FBA (Fulfilment by Amazon) charges various fees for storing, packing, and shipping your products. This calculator helps you work out whether your products will be profitable after all Amazon fees are deducted.

Types of FBA Fees

  • Referral Fees: A percentage of your selling price based on product category
  • FBA Fulfilment Fees: Based on product size and weight
  • Storage Fees: Monthly fees for keeping inventory in Amazon warehouses
  • VAT: 20% VAT on Amazon’s fees (where applicable)

Size Tiers for FBA Fees

Size Tier Maximum Dimensions Maximum Weight Fulfilment Fee
Small Envelope 20 x 15 x 1 cm 80g £2.21
Standard Envelope 33 x 23 x 2.5 cm 460g £2.60
Large Envelope 33 x 23 x 5 cm 960g £2.89
Small Parcel 45 x 34 x 26 cm 12kg £3.86 + £0.38/kg over 1kg
Standard Parcel 45 x 34 x 26 cm 12kg £5.02 + £0.38/kg over 1kg

Step-by-Step Guide

1. Choose Your Product Category

Select the correct category as referral fees vary significantly. Electronics typically have lower referral fees (8%) compared to clothing (17%).

2. Enter Accurate Dimensions and Weight

Measure your packaged product carefully. Amazon charges based on dimensional weight if it’s greater than actual weight.

3. Include All Costs

Don’t forget to include your product cost and shipping expenses to get an accurate profit margin.

4. Account for Additional Costs

Consider returns, damaged goods, and long-term storage fees which aren’t included in this basic calculation.

Frequently Asked Questions

What’s included in FBA fulfilment fees?
FBA fulfilment fees cover picking, packing, shipping, customer service, and returns processing. The fee depends on your product’s size tier and weight.
How is dimensional weight calculated?
Dimensional weight = (Length × Width × Height in cm) ÷ 5000. Amazon charges based on whichever is greater: actual weight or dimensional weight.
Are there additional storage fees?
Yes, Amazon charges monthly storage fees (£0.75-£2.40 per cubic metre depending on season) and long-term storage fees for items over 365 days.
When do referral fees apply?
Referral fees are charged on the total selling price including delivery charges. They vary by category, typically ranging from 8% to 45%.
What about VAT on Amazon fees?
Amazon charges 20% VAT on their fees. However, VAT-registered sellers can typically reclaim this as input VAT.
Important: This calculator provides estimates based on standard FBA fee structures. Actual fees may vary due to promotional programmes, seasonal adjustments, or policy changes. Always verify current rates on Amazon Seller Central.

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