How Returns Destroy Your Google Ads Profit (And How to Fix It)
Google Ads reports the sale. It doesn't report the return. That gap between recorded revenue and actual revenue is silently destroying campaign profitability.
A 20% return rate doesn't reduce your ROAS by 20%. It's worse than that. You paid to acquire the customer. You paid to ship the product. You paid to process the return. And you got nothing back.
Returns don't just reverse revenue. They add cost. The true impact is revenue lost plus acquisition cost wasted plus handling cost incurred.
The Maths Google Ads Doesn't Show
Let's trace a campaign with a 25% return rate:
What Google Reports
Ad Spend
£10,000
Reported Revenue
£50,000
Reported ROAS
5.0x
Looks profitable?
Yes
What Actually Happened
Actual Revenue (after 25% returns)
£37,500
Return Processing Costs
-£2,500
Real ROAS
3.5x
Profit Impact
-30%
Why Some Campaigns Have Higher Return Rates
New Customer Acquisition
First-time buyers return more than repeat customers. They don't know your sizing, quality, or whether the product matches their expectations. NCA-focused campaigns naturally have higher return rates.
Product Category Variations
Clothing return rates can hit 40%+. Electronics might be 10%. If your campaigns are optimising toward high-return categories because they show higher ROAS, you're optimising toward phantom profit.
Discount-Driven Purchases
Sale shoppers buy more speculatively. "I'll order it and decide later." This behaviour is more common when ads emphasize discounts. Lower price = lower commitment = higher return probability.
The Hidden Costs Stack
Each return carries these costs that Google Ads never sees:
- Original ad spend (wasted)£20-50 per return
- Outbound shipping£4-8 per return
- Return shipping (if paid)£4-8 per return
- Processing and inspection£2-5 per return
- Repackaging or markdownVariable
- Total cost per return£30-70+
How to Account for Returns in Google Ads
1. Track Return Rates by Product
Not every product has the same return rate. Map return data to product-level performance. Use this to adjust which products get promoted in Shopping and PMax.
2. Apply Return-Adjusted ROAS Targets
If a product has 30% returns, your target ROAS needs to be 40%+ higher to achieve the same net profit as a product with 5% returns.
3. Use Custom Labels for Return Tiers
Segment products by return rate in your feed. Create separate campaigns or asset groups. Bid differently based on expected net revenue.
4. Import Adjusted Conversion Values
Feed return-adjusted revenue back to Google Ads. This helps Smart Bidding learn the true value of conversions rather than optimising toward orders that get returned.
The Campaign Structure Question
Should high-return products get different treatment?
Option A: Exclude High-Return SKUs
Remove products with 30%+ return rates from paid campaigns. Let organic and email carry them. Ruthless but effective for immediate profit protection.
Option B: Adjusted Bidding
Keep high-return products in campaigns but with proportionally lower bids. Accept that these products need higher ROAS to break even.
There's no universal answer. It depends on whether those high-return products serve strategic purposes like customer acquisition or category leadership.
The goal isn't zero returns. It's knowing how returns affect profitability and building that reality into campaign structure and bidding decisions.
Related Reading
Want to understand how returns affect your campaign profit?
We'll map return rates to campaign performance and identify where reported ROAS is masking negative contribution margin.
Book a Discovery Call