ROAS (Return on Ad Spend) is the single most important metric for measuring marketing efficiency. It tells you how much revenue you generate for every pound or dollar you spend on advertising. A ROAS of 4x means you earn four units of revenue for every unit of ad spend.
Simple enough. But the way most businesses calculate it is fundamentally misleading.
The Formula
ROAS = Revenue Attributed to Ads / Ad Spend
If you spent $10,000 on Google Ads and those ads generated $45,000 in revenue, your Google Ads ROAS is 4.5x. Straightforward.
The problem is the word “attributed.”
Why Platform-Reported ROAS Is Wrong
Google Ads tells you your ROAS is 6x. Meta tells you your ROAS is 5x. LinkedIn tells you your ROAS is 3x. Add those up and you’ve apparently generated far more revenue than your business actually earned.
Each platform reports in its own favour. They each claim credit for the same conversions because they each saw a touchpoint in the journey. This is like three salespeople all claiming the full commission for a single deal they each touched.
The Solution: Independent Attribution
Independent ROAS calculation requires three things:
- A single source of truth for revenue: not each platform’s self-reported numbers, but your actual transaction data.
- Cross-channel attribution: a model that distributes credit fairly across every touchpoint, not just the one each platform saw.
- Platform independence: the measurement shouldn’t come from the same platform being measured.
When you calculate ROAS through an independent attribution platform, you get the real number. It’s usually lower than what any individual platform reports, but it’s accurate, and accuracy is what drives good budget decisions.
Blended ROAS vs Channel ROAS
Channel ROAS measures the return from a specific channel (e.g., Google Ads ROAS of 4.2x). Useful for comparing channel efficiency.
Blended ROAS (or NROAS) measures total revenue divided by total marketing spend across all channels. This is the number your CFO cares about; it tells you whether your overall marketing investment is generating a positive return.
Both matter. Channel ROAS tells you where to reallocate. Blended ROAS tells you whether the whole engine is working.
How Attriqs Calculates True ROAS
Attriqs connects your actual revenue data (from Shopify, CSV uploads, or manual entry) with your marketing spend (synced automatically from Google Ads, LinkedIn Ads, and Meta, or entered manually). It then runs attribution models to assign revenue credit fairly across channels.
The result is independent, accurate ROAS per channel and blended across your entire marketing mix, updated in real time on your dashboard.