How Much Should a Business Spend on Google Ads?
There's no universal answer, but there's a framework. Google Ads spend should be driven by your target cost-per-lead, your industry's average CPC, and the volume of searches available in your market.
Industry Benchmark CPCs
- Home Services (HVAC, Plumbing, Roofing): $15–$50 per click
- Legal Services: $50–$200+ per click
- Dental and Medical Practices: $8–$30 per click
- Financial Services and Insurance: $15–$60 per click
- Real Estate: $10–$30 per click
- Digital Marketing and Business Services: $5–$25 per click
How to Calculate Your Required Budget
Work backwards from your revenue goals: If you close 30% of qualified leads and each client is worth $2,000, a $200 cost-per-lead delivers strong ROI. At a 3% landing page conversion rate with $15 average CPC, you need ~$500/month minimum to get statistically meaningful data.
Common Google Ads Budget Mistakes
- Spreading budget too thin across too many campaigns
- Neglecting negative keywords while scaling
- Ignoring the website quality and blaming the budget
- Stopping campaigns during slow periods rather than adjusting