what is ACOS

What Is ACoS and How to Calculate It?

insights |  | 4 min read

As one of the largest ad platforms, Amazon lets over a million sellers promote their brands and products on and off the site. If you plan to advertise on Amazon, it's important to understand ACoS (Advertising Cost of Sale).

 

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Highlights

  1. Amazon ACoS measures the profitability of advertising campaigns by comparing ad spending to sales revenue.
  2. A lower ACoS is generally better, but the ideal rate depends on product costs, goals, and competition.
  3. Product competition, listing quality, and keyword relevance impact your ACoS.
  4. A typical ACoS target ranges from 30% to 40% but varies by industry and profit margins.
  5. Break-even ACoS occurs when ad spend equals profit, meaning no profit or loss from ads.

 

Why We Wrote This?

We wrote this Amazon ACoS guide to inform sellers that they must calculate their ACoS to know how much they’ve spent on advertising for every dollar of revenue they generate.  Knowing about ACoS is crucial in shaping your Amazon advertising strategy. It helps calculate the effectiveness of your advertising campaigns and shows how efficiently you're scaling toward your business goals.

So, in this guide, we’ll discuss what is ACoS on Amazon, what is good and break-even ACoS, and how to calculate it.

 

What Is ACoS In Amazon?

Amazon ACoS stands for Advertising Cost of Sale and is a key metric to gauge your Amazon Advertising campaigns' profitability. It's calculated by dividing the total amount spent on ads by the total sales generated from those ads.

A lower ACoS is typically better because you spend less on ads to make the same sales. However, the ideal ACoS depends on factors like your product costs, advertising goals, and budget.

Factors that can impact your ACoS include:

  • Product competition: High competition can drive up costs.
  • Quality of product listings: Well-optimized listings can improve conversion rates.
  • Keyword relevance: Targeting the right keywords makes your ads more effective.

 

How to Calculate ACoS?

advertising cost of sale

To calculate ACoS, use the formula: ACoS = (Total Ad Spend ÷ Total Sales Revenue) x 100

Although a lower ACoS is desirable, an extremely low ACoS (e.g., 1%) is unrealistic. The ideal ACoS depends on product category, profit margins, and competition. A good target for ACoS is around 15-20%, meaning your product cost should exceed ad spend to ensure profitability.

 

What Is a Good ACoS on Amazon?

A "good" ACoS is subjective and depends on product category, advertising strategy, profit margins, and competition. Here are some key points to understand:

  1. Industry benchmarks: Sellers in highly competitive categories, like electronics or fashion, may experience higher ACoS percentages, while those with niche or high-margin products might aim for lower ACoS targets.
  2. Typical ACoS ranges: A commonly recommended ACoS target is between 30% and 40%. However, if you’re in a growth phase or launching a new product, a higher ACoS may be acceptable until you gather enough reviews and data.
  3. Profit margins: A good ACoS depends largely on your profit margins. If your profit margin is 50%, then a 25% ACoS would mean you're still making a profit.

What is Break-Even ACoS?

Break-even ACoS is when your ad spend matches the profit made from sales, meaning you're neither losing nor gaining money from advertising. Your break-even ACoS is equal to your product’s profit margin.

 

How to Calculate Break-Even ACoS?

First, calculate your profit margin via this formula:


Profit Margin (%) = (Revenue - Cost of Goods Sold) ÷ Revenue x 100

This includes all costs associated with producing, importing, selling, and Amazon fees.

Compare ACoS to profit margin:

  • ACoS > profit margin: You are losing money on advertising.
  • ACoS < profit margin: You are making a profit on advertising.

Example:

If you spend $25 on ads and generate $100 in sales, your ACoS is 25%. If your profit margin is 40%, your break-even ACoS would be 40%. Thus, you can advertise up to 40% of your revenue without losing money.

 

Summary

Understanding what is ACoS is essential for optimizing your Amazon advertising campaigns. By tracking and managing ACoS, you can ensure that your ad spend aligns with your profit goals. Whether aiming for a low ACoS to maximize profitability or accepting a higher ACoS during growth phases, balancing ad costs and sales revenue is key to long-term success on Amazon.

 

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