What is Amazon TACOS and How is it Different from ACOS?
Amazon sellers who focus only on ACOS are missing half the picture. TACOS — Total Advertising Cost of Sale — is the metric that reveals how advertising is impacting your entire business, not just paid revenue. This guide explains TACOS, how to calculate it, and why it is increasingly regarded as the more important long-term metric.
TACOS Definition and Formula
TACOS stands for Total Advertising Cost of Sale. Unlike ACOS which divides ad spend only by ad-attributed revenue, TACOS divides ad spend by all revenue — organic and paid combined. This gives you a true picture of advertising efficiency across your entire account. The formula is:
Why TACOS Matters More Than ACOS for Long-Term Growth
A product can have a high ACOS but a low TACOS — and that is actually a healthy situation. It means ads are generating organic ranking and visibility, so a larger share of total revenue is coming in organically. Over time, as a product ranks organically on high-volume keywords, you can reduce ad spend while maintaining or growing total revenue — and TACOS falls as a result.
TACOS Benchmarks by Stage
Where your TACOS should sit depends entirely on what stage your product is at. Here are the benchmarks by lifecycle stage:
| Product Stage | Timeframe | Expected TACOS |
|---|---|---|
| New product launch | Months 1–3 | 20–30%+ (normal — buying rank) |
| Growth phase | Months 4–8 | 15–20% (organic starting) |
| Mature product | Months 9+ | 8–12% (healthy balance) |
| Dominant product | Established | Below 8% (ads supplementary) |
How to Track TACOS in Seller Central
Amazon does not display TACOS natively in one place. You need to cross-reference your advertising reports with your business reports. Take your total ad spend from the advertising console and divide it by your total ordered revenue from the Business Report for the same period. Many third-party tools including Helium 10 and DataDive calculate TACOS automatically.
TACOS vs ACOS: When to Use Each
- Use ACOS when evaluating the profitability of individual campaigns or keywords
- Use TACOS when evaluating your overall advertising strategy and brand health on Amazon
- Use ACOS to optimize bids and targeting
- Use TACOS to decide whether to increase or decrease advertising investment at the product or catalog level
Signs Your TACOS Strategy is Working
- TACOS declining quarter over quarter while total revenue holds or grows
- Organic sales percentage increasing as a share of total revenue
- Ability to reduce bids without losing total sales volume
Frequently Asked Questions
TACOS stands for Total Advertising Cost of Sale. Formula: TACOS = (Total Ad Spend / Total Revenue) × 100. Unlike ACOS, it includes both organic and paid revenue in the denominator, giving a full-business view of advertising efficiency.
For a new product launch, a TACOS of 20–30% is normal. As the product matures and organic rank builds, TACOS should decline to 8–12%. A dominant product with strong organic performance may have a TACOS below 8%, where ads are purely supplementary.
ACOS = Ad Spend ÷ Ad Revenue. It measures campaign-level efficiency. TACOS = Ad Spend ÷ Total Revenue (organic + paid). It measures how advertising is affecting your entire business. A falling TACOS with stable revenue is one of the best signals of a healthy Amazon growth strategy.
Yes — TACOS is almost always lower than ACOS because it uses a larger denominator (total revenue vs ad-attributed revenue only). The larger the organic share of your revenue, the bigger the gap between ACOS and TACOS. A large gap between the two is a positive sign of strong organic performance.
TACOS falls naturally as organic rank improves. Focus ad spend on keywords where you are close to ranking organically, improve your listing conversion rate, generate reviews, and build consistent sales velocity. As organic traffic grows, the same ad spend represents a smaller share of total revenue — and TACOS drops.
Pull your total ad spend from the Amazon Advertising console for a given period. Pull your total ordered revenue from the Seller Central Business Report for the same period. Divide ad spend by total revenue and multiply by 100. Amazon does not calculate TACOS natively — you must do this manually or use a third-party tool.
About Perfality
Perfality is an end-to-end ecommerce and marketplace management agency trusted by 75+ global CPG and DTC brands including Spectrum Brands, Kenneth Cole, Black+Decker, Stella & Chewy's, and Galderma. With 8 years of hands-on experience and a 100+ specialist team based in Jaipur, India, Perfality helps brands grow on Amazon, Walmart, Chewy, Petco, and other major marketplaces through listing optimization, A+ content, PPC management, account operations, chargeback recovery, and data intelligence. Learn more at www.perfality.com.
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