There is no universal answer to budget allocation — but there is a systematic framework for arriving at the right answer for a specific business. The variables that matter: business type (local service, e-commerce, B2B SaaS, professional services), total budget size, existing brand awareness, and whether you are in growth or profitability mode.
The Core Principle: Harvest Before You Farm
Start by allocating budget to channels where demand already exists (Google Search for high-intent keywords) before allocating to channels where you need to create demand (Meta, LinkedIn, TikTok). The conversion rates and costs are dramatically different. A $5,000 budget should go 80% to Google Search and 20% to a retargeting campaign. A $25,000 budget can begin diversifying into Meta for demand generation, with Search as the primary channel.
Allocation by Business Type
Local service business ($3-10K/month): 70% Google Search, 20% Meta (lead gen), 10% LSA (Local Services Ads). B2B professional services ($10-30K/month): 50% Google Search, 30% LinkedIn, 20% Meta retargeting. E-commerce ($10-50K/month): 40% Google Shopping/PMax, 35% Meta (prospecting + retargeting), 15% YouTube, 10% testing budget. Consumer professional services (law, medical, finance) ($5-20K/month): 60% Google Search, 25% Meta, 15% YouTube or LSA.
The 10% Testing Budget
Regardless of total budget, always reserve 10% for structured channel and creative testing. Without a testing budget, you never discover the next high-ROI channel before your competitors do. Test in 90-day blocks with clear hypotheses and success criteria. Kill tests that do not hit targets ruthlessly — sunk cost thinking kills testing programs.
