How to Split an Ad Budget Across 3 Channels
A simple starting split for search, social and programmatic when you don't have a year of data to lean on yet — and the signals that tell you when to move budget.
Most teams ask which channel is "best" before they've spent enough to know which channel is best for them. Until you have real data, the goal isn't to find the winner — it's to build a split you can defend and adjust quickly.
A reasonable starting point for a new budget: 50% to search (captures existing demand, fastest to measure), 30% to paid social (builds the audience you'll retarget later), 20% to programmatic or display (cheap reach, keeps your brand present while search and social prove themselves).
Give each channel at least four weeks and a fixed creative set before judging it — most "channel X doesn't work" conclusions are actually "we changed too many variables in two weeks" conclusions.
Once you have real numbers, move budget toward whichever channel has the lowest cost per qualified lead, not the lowest cost per click. Clicks are cheap everywhere; qualified leads are the only number that should move spend.
Re-run this split review monthly, not weekly. Channels need time to compound, and a weekly reshuffle usually just chases noise.
