Every lean marketing team eventually asks some version of the same question. How much should actually go to LinkedIn versus Google versus Meta? The honest answer is that there's no universal ratio, and most numbers floating around online are based on very different company stages and buyer types than the one you're actually working with.
What's more useful than a fixed ratio is a way of reasoning through the decision based on your own specific situation, since the right split for a company selling infrastructure tooling to engineering leaders looks very different from the right split for a company selling to marketing teams themselves.
Start with where your buyer actually spends attention, not where's cheapest
It's tempting to lean into whichever channel has the lowest cost per click, but a cheap click from the wrong audience is still a wasted click. If your buyer is a technical decision maker who spends very little time on Meta but is active on LinkedIn during work hours, a lower cost per click on Meta doesn't actually make it the better investment. Start with where genuine attention exists before factoring in cost. LinkedIn isn't automatically the right primary channel for every B2B SaaS team either, though it's often a strong default for professional audiences. If your buyer is highly technical and spends more time in developer communities or search than on LinkedIn itself, treating LinkedIn as automatically primary can mean underinvesting in a channel that would actually perform better.
Match channel role to funnel stage, not just audience
Google tends to work best for people already actively looking for a solution, even in categories with lower overall search volume. LinkedIn tends to work well for reaching people who fit your audience but aren't actively searching yet. Meta tends to work best for staying visible to people who already know you, through retargeting or account based visibility. Splitting budget by what each channel is actually good at, rather than treating them as interchangeable, usually produces a more coherent strategy than splitting purely by preference or habit. There's no fixed percentage that fits every team, but retargeting typically deserves a smaller, steady allocation regardless of overall budget, since it usually converts at a meaningfully higher rate than reaching completely new audiences. Underfunding it is a common and avoidable mistake.
Test with meaningful amounts, not symbolic ones
A common mistake is spreading a small budget across three channels in a way that gives each one too little to actually learn anything. A test that's too small to generate enough data isn't really a test, it's just a small guaranteed loss with a test label attached. It's usually better to properly fund two channels than to weakly fund three. It's not always necessary to test all three channels equally before deciding on a split. It's often more useful to fund one or two channels seriously enough to get a real read, rather than splitting a limited budget three ways and ending up with inconclusive results everywhere.
Revisit the split based on actual performance, not habit
The right split at launch usually isn't the right split six months later. As data comes in about which channel is actually producing pipeline efficiently, the allocation should shift toward what's working, even if that means moving away from what was originally planned. Treating the initial split as fixed rather than a starting hypothesis is one of the more common reasons budget stays misallocated for longer than it should. Reviewing quarterly is reasonable for most lean teams, though a channel showing a clear and sustained performance shift, positive or negative, is worth acting on sooner rather than waiting for the scheduled review.
Where competitor behavior fits into this
Watching where competitors are actually spending, using the kind of tracking covered in Infinall's guide on doing competitor ad research without a paid tool, can offer a useful signal, though it shouldn't be copied directly. A competitor's channel mix reflects their own buyer, team, and history, not necessarily yours.
FAQs
Q: Is there a standard budget split that works for most B2B SaaS teams?
No. The right split depends heavily on where your specific buyer spends attention and what funnel stage each channel is actually serving for you.
Q: Should I choose channels based on cost per click?
Not primarily. A cheap click from the wrong audience is still wasted spend. Start with where genuine buyer attention exists, then factor in cost.
Q: How much should go toward retargeting?
There's no fixed percentage, but retargeting usually deserves a steady, dedicated allocation since it tends to convert better than reaching completely new audiences.
Q: Is it better to test three channels lightly or two channels seriously?
Usually two channels funded seriously enough to get real data beats three channels tested too lightly to produce a clear result.
Q: How often should I revisit my channel split?
Quarterly is reasonable for most lean teams, though a clear and sustained performance shift is worth acting on sooner than the scheduled review.
Q: Should I copy a competitor's channel split?
No. It can offer useful context, but a competitor's split reflects their own audience and history, which may not match yours.
Q: Is LinkedIn always the best primary channel?
Not automatically. It's a strong default for many B2B audiences, but a highly technical buyer may actually spend more attention elsewhere.
Q: What's the most common mistake in budget splitting?
Spreading a limited budget too thin across every channel at once, which tends to produce inconclusive results everywhere instead of a clear answer anywhere.