7 Google Ads Strategies to Double Your ROAS in 90 Days

A mid-sized ecommerce brand was spending $50,000/month on Google Ads with a 2.1x ROAS.

"Not great, not terrible," they thought.

Then they implemented the 7 strategies in this guide.

90 days later:

• ROAS: 4.5x (↑114%)
• Same $50,000/month budget
• Revenue increased from $105,000 to $225,000/month
• Extra profit: $120,000/month

Here's exactly how they did it (and how you can too).

The Problem with "One Campaign for Everything"

Most advertisers make this mistake:

• 1 Search campaign
• All products in one ad group
• 200+ keywords mixed together
• Generic ad copy

Result: Low Quality Scores, high CPCs, mediocre ROAS.

The Fix: Intent-Based Campaign Segmentation

Reorganize campaigns by user intent, not product category:

High-Intent Campaigns (Bottom of Funnel)

Keywords: Brand terms, competitor terms, urgent buying signals

• "buy nike air max"
• "nike air max discount code"
• "[competitor] alternative"

Budget allocation: 60% of total budget

Bidding: Maximize Conversions (aggressive)

Expected ROAS: 5x - 8x

Mid-Intent Campaigns (Middle of Funnel)

Keywords: Product comparison, "best X for Y"

• "best running shoes for marathon"
• "nike vs adidas running shoes"

Budget allocation: 25% of total budget

Bidding: Target ROAS (3x - 4x target)

Expected ROAS: 3x - 5x

Low-Intent Campaigns (Top of Funnel)

Keywords: Problem-awareness, research

• "how to prevent shin splints"
• "running shoe guide"

Budget allocation: 15% of total budget

Bidding: Manual CPC or Maximize Clicks

Expected ROAS: 1x - 2x (but builds remarketing audiences)

Real Results

Before restructure:

• 1 campaign, 2.1x ROAS

After restructure:

• High-Intent: 7.2x ROAS
• Mid-Intent: 3.8x ROAS
• Low-Intent: 1.4x ROAS
• Blended ROAS: 4.5x (↑114%)

Why Manual Bidding is Dead

Google's machine learning analyzes 70+ signals in real-time:

• Device
• Location
• Time of day
• Weather
• Past browsing behavior
• And 65 more...

You can't compete with that manually.

The Smart Bidding Ladder

Don't jump straight to Target ROAS. Follow this sequence:

Phase 1: Maximize Conversions (Weeks 1-4)

Goal: Gather conversion data (need 30+ conversions/month minimum)

Budget: Start with 80% of your current budget

CPA cap: Set a maximum CPA to prevent runaway spending

Phase 2: Target CPA (Weeks 5-8)

Goal: Control costs while scaling

Target CPA: Set at 20% below your current average CPA

If profitable: Increase budget by 20% every 2 weeks

Phase 3: Target ROAS (Weeks 9+)

Goal: Maximize revenue

Target ROAS: Start at your current average ROAS

Optimization: Increase target by 10% every 2 weeks until performance plateaus

Critical: The Learning Phase

Google needs 50 conversions in 30 days to fully optimize.

During learning (first 7-14 days):

• ROAS may be volatile
• Don't panic and turn off campaigns
• Don't make changes (pausing/editing resets learning)

If you MUST make changes, limit to:

• Budget changes < 20%
• Bid adjustments < 20%
• Max 1 change per week

Why You're Wasting 30% of Your Budget

80% of your wasted spend comes from 20% of search terms.

Example: Campaign for "men's leather wallet"

Intended searches:

• men's leather wallet
• leather wallet for men
• genuine leather wallet

Actual searches triggering your ads:

• free leather wallet (❌ not buying)
• leather wallet repair (❌ wrong intent)
• leather wallet phone case (❌ different product)

The Weekly Negative Keyword Ritual

Every Monday morning (takes 15 minutes):

• Pull Search Terms Report: Ads & Extensions → Search Terms
• Sort by: Cost (highest first)
• Identify waste: Click-through but no conversions
• Add as negative keywords:
• Broad match for irrelevant themes
• Phrase match for specific waste
• Exact match for exact waste

Example negative keyword list for ecommerce:

• free
• cheap (unless you're a discount brand)
• DIY / how to make
• repair
• jobs / careers
• wholesale (if you sell retail only)
• second hand / used (if you sell new only)

Advanced: Negative Keyword Lists

Create 3 master lists and apply across all campaigns:

• Universal Negatives: free, jobs, careers, Wikipedia, YouTube
• Non-Buyer Intent: how to, DIY, tutorial, guide (unless you're content marketing)
• Low-Value Modifiers: cheap, discount, promo code (test this—sometimes converts)

Impact: One client reduced wasted spend from 32% to 9% by implementing this system.

The Power of First-Party Data

Your website visitors convert 5-10x better than cold traffic.

How to leverage:

Setup Remarketing Audiences

• All website visitors (30/60/90-day windows)
• Cart abandoners (didn't complete purchase)
• Product page viewers (interested but didn't add to cart)
• Converters (past customers)

Layering Strategy

Campaign A: Search (Cold Traffic)

• Target: General keywords
• Bid adjustment: Baseline
• Expected ROAS: 2.5x

Campaign B: Search (Warm Traffic)

• Target: Same keywords + remarketing audience overlay
• Bid adjustment: +50% - 100%
• Expected ROAS: 6x - 8x

Why this works: Warm traffic already knows your brand. Higher bids = higher impression share = more conversions at lower CPA.

Customer Match (Advanced)

Upload your customer email list to Google:

Use cases:

• Exclude existing customers from acquisition campaigns (if you don't want repeat purchases)
• Target existing customers for upsells/cross-sells
• Create lookalike audiences (Similar Audiences)

Privacy note: Google hashes emails—you don't expose customer data.

The 3-Ad Framework

Never run 1 ad per ad group—always run 3:

Ad #1: Feature-Focused

Headline 1: Free Shipping on All Orders

Headline 2: 1000+ 5-Star Reviews

Headline 3: Shop Premium Leather Wallets

Ad #2: Benefit-Focused

Headline 1: Wallets That Last 10+ Years

Headline 2: RFID Protected | Slim Design

Headline 3: Built for Modern Men

Ad #3: Urgency-Focused

Headline 1: 25% Off - Ends Tonight

Headline 2: Limited Stock | Best Sellers

Headline 3: Order Now, Ships Same Day

Google's algorithm automatically shows the best-performing ad to each user.

High-Converting Ad Elements

Use these tested components:

Price transparency: "Starting at $X" (reduces unqualified clicks)

Social proof: "10,000+ Happy Customers"

Risk reversal: "60-Day Returns"

Scarcity: "Only 3 Left in Stock"

Specificity: "Delivered in 2 Days" (not "Fast Shipping")

Dynamic Search Ads (DSA) for Scale

Solution: Let Google create ads dynamically based on your website content.

Setup:

• Create Dynamic Search Ad campaign
• Target: Your entire website (or specific categories)
• Google scans your site
• Creates headlines based on landing page content
• You provide descriptions

Best for: Large product catalogs, new product launches.

Why Your Ads Fail (Even with Great Copy)

Scenario:

• User searches: "men's minimalist wallet"
• Your ad: "Shop Minimalist Wallets"
• Landing page: Homepage with 20 product categories

Result: User gets confused, bounces. Your Quality Score drops. CPC increases.

The Fix: 1:1 Message Match

Ad keyword: men's minimalist wallet

Ad headline: Shop Men's Minimalist Wallets

Landing page: Dedicated page showing ONLY minimalist wallets

Headline on page: "Men's Minimalist Wallets"

Message consistency = Higher Quality Score = Lower CPC + Higher ROAS.

Landing Page Checklist

✅ Clear headline matching ad copy

✅ Single call-to-action (don't give users 10 choices)

✅ Fast load time (<3 seconds)

✅ Mobile-optimized (60%+ of clicks are mobile)

✅ Trust signals (reviews, badges, guarantees)

✅ Easy checkout (1-click buy, guest checkout)

Bonus: Use heatmaps (Hotjar, Crazy Egg) to see where users click and where they drop off.

Most Advertisers Track the Wrong Thing

What most people track: "Purchases"

What you should track: "Purchases + Add to Cart + Begin Checkout"

Why? Google's Smart Bidding optimizes for conversion volume, not just final purchases.

By tracking micro-conversions, you give Google more data = faster learning = better optimization.

Conversion Action Hierarchy

Primary conversion (highest value): Purchase

Secondary conversions (lower value): Begin Checkout, Add to Cart

Tertiary conversions (lowest value): Email Signup, Product View

In Google Ads:

• Set "Purchase" value = Actual purchase value
• Set "Begin Checkout" value = 30% of average order value
• Set "Add to Cart" value = 10% of average order value

Smart Bidding will optimize for all 3, weighted by value.

Weeks 1-2: Foundation

• Restructure campaigns by intent
• Set up conversion tracking properly
• Build negative keyword lists

Weeks 3-4: Optimization

• Launch Smart Bidding (Maximize Conversions)
• Create 3 ad variations per ad group
• Set up remarketing audiences

Weeks 5-8: Scaling

• Switch to Target CPA
• Increase budgets on high-performers
• Add audience layering

Weeks 9-12: Advanced

• Implement Target ROAS bidding
• Launch Dynamic Search Ads
• Optimize landing pages based on data

Expected outcome by Week 12: ROAS increase of 80-150%.

❌ Changing too much too fast (confuses the algorithm)

❌ Not giving Smart Bidding time to learn (need 30 days minimum)

❌ Ignoring mobile experience (60% of traffic = mobile)

❌ Broad match keywords without proper negatives (waste spend)

❌ No remarketing (leaving 70% of revenue on the table)

Doubling your Google Ads ROAS isn't about spending more—it's about spending smarter.

The ecommerce brand at the start of this article didn't increase their budget. They just:

• Restructured campaigns by intent
• Implemented Smart Bidding correctly
• Added negative keywords aggressively
• Layered audiences
• Improved ad copy
• Optimized landing pages
• Fixed conversion tracking

Total time investment: 15-20 hours over 90 days

Return: $120,000+ in extra monthly profit

Your turn. Pick one strategy from this list and implement it this week.

Track your Google Ads ROAS in real-time → [Try Prismatics Free](https://www.prismatics.co/signup)

Questions? Comment below and I'll answer personally!