What is TACoS in Amazon advertising?

TACoS (Total Advertising Cost of Sale) is ad spend divided by total revenue — including both organic and ad-driven sales. It gives a more complete picture of ad efficiency than ACoS alone, since successful ads boost organic rank and sales over time.

Amazon PPC for Beginners: ACoS, Bids, and Campaign Structure

Q: What is a good ACoS for Amazon PPC?

A good ACoS depends on your profit margin. Your break-even ACoS equals your profit margin percentage. If your margin is 30%, then ACoS below 30% is profitable. Most sellers target 15–25% ACoS for established products.

Q: How much should I spend on Amazon PPC?

A common starting point is 10–15% of your target revenue. For a new product launch, you may need to accept higher ACoS (even unprofitable) for 30–60 days to build sales rank and reviews before optimizing for profitability.

Q: What is the difference between Sponsored Products and Sponsored Brands?

Sponsored Products appear in search results and product pages as individual listings. Sponsored Brands appear at the top of search results with your logo, headline, and multiple products. Sponsored Products drive direct sales; Sponsored Brands build brand awareness.

Amazon PPC (Pay-Per-Click) advertising is the fastest way to get your product in front of buyers — and the fastest way to burn through your margin if you don't understand the numbers. This guide explains how Amazon ads work, what metrics matter, and how to set bids that keep you profitable.

How Amazon PPC Works

Amazon PPC is an auction system. You bid on keywords, and when a shopper searches for that keyword, Amazon runs an auction among all competing bids. The highest bidder gets the top placement — but you only pay when someone actually clicks your ad.

There are three main ad types:

Sponsored Products — individual product listings that appear in search results and on product pages. The most common type and where to start.
Sponsored Brands — banner ads at the top of search with your logo, a headline, and up to three products. Requires Brand Registry.
Sponsored Display — ads that appear on and off Amazon, targeting shoppers based on browsing behavior.

The Core Metrics

Metric	Formula	What It Means
ACoS	Ad Spend ÷ Ad Revenue × 100	% of ad-driven revenue spent on ads
ROAS	Ad Revenue ÷ Ad Spend	Revenue generated per $1 of ad spend
TACoS	Ad Spend ÷ Total Revenue × 100	Ads as % of all revenue (organic + paid)
CTR	Clicks ÷ Impressions × 100	% of viewers who clicked your ad
CVR	Orders ÷ Clicks × 100	% of clickers who purchased
CPC	Ad Spend ÷ Clicks	Average cost per click

What Is Break-Even ACoS?

Your break-even ACoS is the ACoS at which you make zero profit on the ad-driven sale. It equals your profit margin before advertising:

Break-Even ACoS = (Sale Price − COGS − FBA Fees) ÷ Sale Price × 100

Example: you sell for $30, COGS is $8, FBA fees are $7.

Profit before ads: $30 − $8 − $7 = $15
Break-even ACoS: $15 ÷ $30 = 50%

An ACoS below 50% means the ad is profitable. Above 50% means you're losing money on each ad-driven sale. Most sellers target ACoS at 50–70% of break-even — so in this example, 25–35% ACoS as a target.

ACoS Calculator — enter your sale price, COGS, and FBA fees to find your break-even ACoS and target bid range.

How to Set Your Initial Bids

Amazon suggests bids during campaign setup — ignore them. They're based on auction data, not your economics. Instead, work backwards from your target ACoS:

Max CPC = Sale Price × Target ACoS × Conversion Rate

If your sale price is $30, target ACoS is 25%, and you convert 10% of clicks:

Max CPC = $30 × 0.25 × 0.10 = $0.75

Start bids at or below this number. If you're not getting impressions, raise bids incrementally. If ACoS is too high, lower bids or pause underperforming keywords.

Campaign Structure for Beginners

Start with two campaigns per product:

Auto campaign — Amazon chooses which keywords to target. Low bids ($0.30–0.50). Use this to discover which search terms convert, then move winners to your manual campaign.
Manual exact match campaign — target the specific keywords you've validated from auto campaign data. Higher bids, tighter control.

Run both for 2–4 weeks, then review your Search Term Report. Keywords in the auto campaign with sales and acceptable ACoS → add to manual campaign as exact match and add as negative keywords in the auto campaign to avoid duplicate spend.

Launch vs Optimization Phase

In the first 30–60 days of a new product, accept higher ACoS than break-even. You're buying sales velocity, which improves organic rank and builds review count. Once you hit page 1 organically and have 20+ reviews, shift focus to ACoS optimization.

A useful benchmark:

Launch phase: ACoS can be 50–100% (intentional investment in rank)
Growth phase: target break-even ACoS
Profit phase: target 50–70% of break-even ACoS

Frequently Asked Questions

What is a good ACoS for Amazon PPC?

ACoS below your break-even ACoS is profitable. Most mature products target 15–25% ACoS, but the right number depends on your margin. Calculate your break-even first.

How much should I spend on Amazon PPC?

Start with 10–15% of target revenue. During launch, budget more aggressively (even unprofitable) for 30–60 days to build rank. Then optimize toward profitability.

What is the difference between Sponsored Products and Sponsored Brands?

Sponsored Products are individual listing ads in search results. Sponsored Brands are banner ads at the top of search with your logo and multiple products — requires Brand Registry.

What is TACoS?

TACoS = ad spend ÷ total revenue (organic + paid). It shows your true advertising efficiency including the halo effect on organic sales. Declining TACoS over time means your ads are building organic rank.