Reading and improving ROAS honestly

August 21, 2026 · 5 min · Free, with full transcript

ROAS is the metric marketers quote most and misread most. This playbook shows how to strip out the noise, build a number you can actually trust, and then move it in the right direction.

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Welcome to the Leaders Insights Podcast.

Today's episode, reading and improving rows honestly.

Everyone quotes ROAS, return on ad spend, revenue divided by what you paid for ads.

You say most marketers are lying to themselves with it.

Prove it.

Happy to.

A team runs a meta campaign.

The dashboard says four to one, $4 back for every dollar in.

They celebrate.

But half those buyers were already coming.

Facebook took credit for a sale that would have happened anyway.

That's not return.

That's a receipt for demand you already had.

So the numbers inflated.

By how much realistically?

On branded search, people literally typing your company name into Google.

I've seen reported ROAS of eight or ten collapse to under one when you pause it and watch

what actually disappears.

Google's own dashboard will happily bill you for customers who knew your name before

the ad loaded.

You're saying the vendor's number is self-serving?

Shocking.

Of course it is.

The platform is both the referee and the team.

Meta, Google, TikTok.

They grade their own homework and market generously.

Anyone who takes their attribution at face value deserves the budget they're about to

waste.

Fine.

So how do you build a ROAS you can actually trust?

Three moves.

First, strip incrementality.

The sales that only happen because of the ad.

Not the ones you'd have gotten regardless.

You test it.

Turn a channel off in a region.

Watch what really drops.

People hate turning off spend.

It feels like setting money on fire.

It's cheaper than lighting it on fire quietly for two years.

Uber did this famously.

Killed a chunk of app install advertising, something like $120 million annualized, and demand barely

moved.

Two-thirds of it was fraud or dead weight.

That's the whole game in one story.

So test one.

G.O. holdouts.

What's two?

Fix your revenue number.

Most teams count top line order value.

You should count contribution margin, revenue minus the cost of the product, shipping,

payment fees, the discount you gave.

A four-to-one on gross revenue can be losing money once you subtract what the sale actually

cost you.

Give me the trap in numbers.

While a $100 item, reported RO's four, means $25 spend.

Sounds great.

But your product costs $60.

Shipping and fees $15.

You gave a 10% coupon.

You clear maybe $15 of margin on a $25 ad cost.

You paid to lose money, and the dashboard threw a party.

Brutal.

And three.

Pick a consistent window.

Attribution window.

How long after seeing an ad a sale still gets credited?

Meta defaults to seven-day click plus one-day view.

TikTok pushes longer windows because longer windows flatter TikTok.

If your channels use different rulers, you're comparing nonsense and reallocating budget

on it.

Okay, so I've got an honest, deflated number.

Now how do I actually move it up?

You stop worshipping the blended average and go to the edges.

Segment by new versus returning customers.

Returning customer ROAS is often three times higher.

You're paying to rereach people who already love you, feels efficient, does almost nothing

new for the business.

So the flattering segment is the useless one.

Usually.

The number that matters is new customer acquisition cost against what that customer's worth over

their life.

If a fresh buyer costs $40 and brings $200 over two years, a bad one-to-one first order

ROAS is actually a bargain.

Judging that campaign on day one revenue would get you fired for making the right call.

You've just told marketers their best-looking metrics are the biggest liars.

What's the pushback you get?

My CEO wants one number by Monday.

Fine.

Give them one number, but make it the honest one.

I'd rather report a blended two-to-one I'd bet my job on than a seven-to-one

I know is fiction.

The fiction always gets discovered, usually right when you've scaled spend on it.

Give me the one thing to do tomorrow morning.

Run a geo holdout on your single biggest channel.

Turn it off in two comparable regions for three weeks.

Keep it on everywhere else.

The gap between what the dashboard claims and what actually drops is your real ROAS.

Everything else is decoration until you know that number.

That's a wrap.

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