Breakeven

ACOS calculator

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Your unit economics
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Amazon charges the referral fee on the full price the buyer pays, and Amazon Ads reports UK sales inclusive of VAT — so advertising is measured against the gross price while your margin is earned on the net. Returns assume 50% of returned stock cannot be resold.
Where you are now
£
£
Breakeven TACOS
35.3%
Target TACOS at 15% margin
22.8%
Your maximum sustainable TACOS is 35.3%. Enter your ad spend and total revenue to see where you actually sit.
Per unit breakdown
Sell price£29.99
Less VAT at 20%-£5.00
Net revenue£24.99
Referral fee (15%)-£4.50
FBA fulfilment-£3.10
Cost of goods-£6.50
Returns provision (5%)-£0.32
Contribution before advertising£10.58 · 42.3%
Breakeven TACOS35.3%
Figures exclude fixed costs, storage and long-term storage surcharges, and any low-inventory fee. Use the UK/EU FBA profitability calculator for a fuller picture.

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