🎯 ACOS Optimization: Reduce Wasted Ad Spend and Boost Profitability
- Crystal Waddell
- 11 minutes ago
- 4 min read

Learn the critical difference between ACOS and ROAS, how to price for profit, and why even a 10x ROAS can leave you broke.
This episode of the Simple and Smart SEO Show with guest Austin Becker is your new ad spend survival guide.
🎧 Listen Now: The Hidden Cost of High ROAS (ft. Austin Becker)
Podcast Summary:
In this episode, Crystal Waddell and Austin Becker talk about ACOS optimization, why profit margins matter more than revenue, and how Shopify sellers can stop losing money on ads.
Key Topics Covered:
What is ACOS and how it differs from ROAS
Why a low ACOS = higher profitability
How to price your product to include ad costs
Strategies to reduce ACOS and eliminate wasted spend
Using collection pages and product videos for better SEO
How Amazon, Target, and Walmart impact your ad visibility
👉🏽 Jump to Timestamps
00:07:14 – What is ACOS?
00:08:00 – ACOS vs ROAS
00:10:05 – Why Pricing Mistakes Kill Profit
00:13:00 – The $0-to-Profit Pricing Shift
00:18:00 – Use Video SEO to Compete with Amazon
🧠 TL;DR: What You Need to Know About ACOS Optimization
ACOS = Ad Spend ÷ Ad Revenue (a lower percentage is better)
ROAS = Ad Revenue ÷ Ad Spend (a higher multiple is better)
They are inverses: 10% ACOS = 10x ROAS
You can have a great ROAS and still be losing money if your ACOS is too high
Include negative keywords and optimize bidding strategy to lower ACOS
Base ad budgets on profit margins, not revenue
Optimize collection pages and embed product videos for higher campaign performance
📊 What Is ACOS? (Advertising Cost of Sale)
ACOS = (Ad Spend ÷ Sales Revenue) × 100
If you spend $15 in ads and make $100 in sales, your ACOS is 15%.
“ACOS tells you how much of your revenue is eaten up by ads—just like rent or payroll.” — Austin Becker
💡 Key Metric Tip:Use ACOS like any other business expense. Aim for a lower ACOS than your profit margin to remain profitable.
🔄 ACOS vs ROAS: What's the Real Profit Metric?
Metric | Formula | Goal |
ACOS | Ad Spend / Revenue | LOWER is better |
ROAS | Revenue / Ad Spend | HIGHER is better |
Example:
ACOS of 20% = ROAS of 5x
ACOS of 5% = ROAS of 20x (amazing!)
“People get excited about a 10x ROAS, but they don’t realize they’re still losing money if their ACOS is too high.” — Crystal Waddell
💸 How to Calculate a Break-Even ACOS
To calculate your break-even ACOS, use this formula:
Break-even ACOS = 100% – Profit Margin
If your product’s profit margin is 30%, your break-even ACOS is 70%. Spend more than that, and you’re losing money.
“A lot of great products fail because their owners never calculated this.” — Austin Becker
🧰 Strategies to Lower ACOS and Increase Profit
1. Use Negative Keywords
Prevent irrelevant clicks that waste budget
Regularly check your search term report
Example: Filter out searches for “free” or wrong product type
2. Improve Ad Relevance
Use long-tail keywords
Match product targeting to customer intent
Write better ad copy tied to landing page content
3. Optimize Bidding Strategy
Start with lower bids, then scale what converts
Use campaign performance data to pause low-ROI ads
Allocate budget to top performing keywords
4. Focus on Conversion Rate
Improve product listings with high quality images
Highlight break-even price and shipping info
Use video to build trust and keep visitors engaged
📦 Shopify + Amazon: How ACOS Optimization Impacts Both
Crystal and Austin stress that Shopify store owners often forget to price in ad spend—and it kills profit.
“I could have had a 10x ROAS and not make any profit! I doubled my prices overnight and made more money with fewer sales.” — Crystal Waddell
Whether you're selling on Amazon or driving traffic to Shopify, you need to protect your margins:
Account for returns
Build in buffer profit for bad hires, broken products, seasonal dips
Keep ad spend to ≤ 5–10% of your product price
📈 Beyond ACOS: How to Compete with Amazon in Search
✅ Add Videos to Product Pages
Embed YouTube videos with schema markup to increase your visibility in Google.
“Videos show up with thumbnails in search. Bigger, more clickable.” — Austin Becker
✅ Optimize Collection Pages
Make it easy for visitors to navigate by style, use case, or category—just like Amazon.
Clear filters (e.g., “ankle socks,” “compression socks”)
Fast path from homepage → product page in 3 clicks
✨ Pro Tip: Sell More When People Are Buying
Instead of forcing consistent sales year-round, double down during peak seasons like:
March (Spring break)
Prime Day (July)
Black Friday/Cyber Monday
Holiday season
“I used to fight for consistency. Now I plan for spikes.” — Crystal Waddell
✅ Frequently Asked Questions (FAQ)
Q: What is a good ACOS for Amazon sellers?A: Under 30% is good. Under 15% is great. It depends on your product margin.
Q: How do I calculate break-even ACOS?A: Subtract your profit margin from 100%. Example: 100% – 25% margin = 75% break-even ACOS.
Q: Can I still lose money with a good ROAS?A: Yes. A 10x ROAS could still leave you unprofitable if your ACOS is too high.
Q: How do I reduce wasted ad spend?A: Use negative keywords, eliminate irrelevant search terms, and optimize bids.
Q: Should I use ACOS or ROAS?A: Use ACOS—it’s more actionable for real business
owners.
🚀 Ready to Stop Losing Money on Ads?
If you’re tired of throwing money at campaigns that don’t convert—or worse, make you look profitable when you're not—join the SEO Squad.
✅ Learn to maximize your profits based on margins through organic marketing
✅ Build product pages that rank and conver
t✅ Get expert help with Shopify SEO, Amazon PPC & more
Commentaires