Amazon PPC glossary
TACOS (Total Advertising Cost of Sales)
TACOS compares your ad spend to all of your sales, not just the sales your ads brought in. It shows how much of your overall revenue goes to advertising, and it helps you see whether ads are also lifting your organic sales over time.
Example
You spend $1,000 on ads in a month. Your ads bring in $4,000 of sales, and your total sales (ads plus organic) are $10,000. Your ACOS is 25% ($1,000 divided by $4,000). Your TACOS is 10% ($1,000 divided by $10,000).
Where it matters most: Book 1, The Amazon PPC Clarity Guide, in the chapter “Scaling Strategies.”
Work out your own break-even ACOS with the free calculator
Go deeper
The glossary gives you the one-line answer. The Amazon PPC Clarity Guide explains why it matters and what to do about it.