How Should You Split Your Ad Budget?

Most businesses get the total right and the allocation wrong. Here's how to make sure every dollar works.

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The Real Budget Problem

When most people ask “how much should I spend on ads?”, they're asking the wrong question. The amount matters — but HOW you split it matters more.

A $1,000 monthly budget spread equally across 5 platforms gives each channel $200. On most platforms, that's not enough to generate meaningful data, optimise campaigns, or see real results. You end up spending $1,000 and learning nothing.

The real question isn't how much — it's how to allocate it so every channel in your plan has enough budget to actually succeed.

Want to see how your budget should be split? →

Why Budget Dilution Kills Campaigns

Every advertising platform needs a minimum level of spend to:

Generate enough impressions to reach your audience

Collect enough data to optimise targeting and creative

Exit the learning phase where the platform is still figuring out who to show your ads to

When you spread budget too thin across too many channels, none of them get past this threshold. You don't get bad results — you get no results. And then you conclude that digital advertising doesn't work, when the real problem was allocation.

This is why professional media planners never just pick channels — they score them, rank them, and ensure every channel in the plan has enough budget to deliver. If a channel can't justify its minimum spend, it gets cut. Better to do 2 channels well than 5 channels badly.

The Smart Way to Allocate Budget

Here's how experienced planners approach budget allocation:

Step 1: Score each channel against your objectives

Not all channels serve all goals equally. A channel that's great for awareness might be poor for direct response. Each channel gets scored based on how well it fits what you're trying to achieve.

Step 2: Factor in your specific context

Your industry, your audience demographics, the platforms you already have a presence on, and the type of creative you can produce all affect which channels will work hardest for you.

Step 3: Allocate budget proportionally by score

The channels that score highest get the largest share. But not linearly — the allocation uses weighted scoring so that strong channels get more, but mid-tier channels still get a fair allocation if they make the cut.

Step 4: Enforce minimum viable spend

Any channel that can't justify a minimum allocation gets removed from the plan. The budget is redistributed to the channels that remain. This is the critical step most people skip — and it's why their campaigns underperform.

This isn't guesswork. It's a scoring model. And it's exactly what PromoGoat automates.

How PromoGoat's Planning Algorithm Does This

You can apply this framework manually — or you can let PromoGoat do it in minutes.

Tell us about your campaign

Objectives, industry, audience, total budget, and which platforms you already use.

The planning algorithm scores every viable channel

Weighing objective fit, audience penetration, creative requirements, and your existing platform presence.

Channels that don't score high enough get cut

Budget concentrates on what works.

The algorithm splits your budget

Ensuring every channel has enough to deliver results. No dilution. No wasted spend.

You get a full plan

Channels, exact budget per channel, creative specs, and timing.

It's the same logic an experienced media planner uses — but systematised, consistent, and available in 3 minutes for €29/month. See how it works →

Frequently Asked Questions

There's no universal number, but we recommend a minimum of $500 per campaign to generate enough data for meaningful results. What matters more than the total is how that budget is allocated across channels — $1,000 concentrated on two strong channels will outperform $1,000 sprinkled across five.

Score each channel against your objectives and context, then allocate proportionally. Cut any channel that can't sustain minimum viable spend. The four-step framework above walks you through it — or PromoGoat automates the entire scoring and allocation process.

Average CPMs vary by industry ($5–$15+), but the minimum viable budget to test and optimise is typically $300–$500 per month for a single campaign. The bigger question is whether Facebook is the right channel for your objectives — which depends on your audience and goals.

CPCs range from $0.50 to $50+ depending on your industry and keywords. Budget depends on your niche — competitive industries like legal and insurance can see CPCs above $30, while less competitive sectors may pay under $2. What matters is whether Google Search is the right channel for you, not just the cost.

It depends on your total budget. A small budget concentrated on 1–2 strong channels will outperform the same budget spread across 5. PromoGoat's planning algorithm makes this decision based on your specific situation — scoring channels, enforcing minimums, and cutting anything that can't justify its spend.

Stop splitting your budget by gut feel.

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