Amazon UK FBA Profit & Margin Calculator

Accurately calculate your Amazon UK referral fees, FBA pick & pack costs, PrepBase handling rates, net profit, and ROI before buying inventory.

Product & Pricing Inputs

Live Calculation
Amazon UK Referral Fees include standard 20% UK VAT. PrepBase fees include receipt, inspection, and 24-48h dispatch.
Net Profit Breakdown
£9.37
Net Profit Per Unit
Net Margin 37.5%
ROI (Return on Cost) 110.2%
Amazon Selling Price £24.99
Item Purchase Cost (COGS) -£8.50
Amazon Referral Fee (incl. VAT) -£3.82
Amazon FBA Pick & Pack Fee -£2.65
PrepBase UK Prep & Labeling -£0.35
Inbound Shipping to FC -£0.30
Total Expenses Per Unit £15.62

PrepBase Storage vs. Amazon FBA Storage Fees

Avoid Amazon's punitive Q4 monthly storage and Aged Inventory Surcharges (formerly Long-Term Storage Fees) by staging inventory in our Birmingham logistics hub.

Amazon FBA Storage

Amazon UK Fulfillment Center

Standard Season (Jan - Sep) £0.82 / cu. ft. / mo
Peak Q4 Season (Oct - Dec) £1.15 / cu. ft. / mo
Aged Inventory Surcharge (271-365 days) £3.60 / cu. ft. / mo
Estimated Pallet Cost (Q4) £46.00 / pallet / mo
PrepBase Smart Storage

PrepBase UK Birmingham Hub

First 14-30 Days 100% Free Storage
Standard Pallet Storage £15.00 / pallet / mo
Peak Q4 Surcharge £0 (No Q4 Penalty)
Estimated Savings vs Amazon (Q4) Save 67% on Storage
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