Home/Law Firms/Budget Guide
Budget Calculator

How Much Should Law Firms Spend on Google Ads?

Based on 2025 benchmark data, here's what law firm businesses should budget for Google Ads—and what you can expect in return.

Recommended Budget for Law Firms

$3,000

Minimum Monthly

~18 leads/month

$4,000-$10,000/month

Recommended Range

Best ROI sweet spot

$659

Cost Per Customer

20% close rate

Budget Math for Law Firms

Average CPC$8.58
Conversion Rate5.09%
Cost Per Lead$131.63
Typical Close Rate20%
Cost Per Customer$659

At $131.63 CPL and 20% close rate, each client costs $658 to acquire. A single personal injury case might settle for $50,000+ (with 33% contingency = $16,500 fee). Even with 1-2 cases per month from ads, ROI is strong. For hourly billing practices (family, corporate), calculate based on average case value vs. acquisition cost.

Seasonal Budget Adjustments for Law Firms

Peak Months (Increase Budget)

January, September, October

Consider 20-50% budget increase

Slow Months (Conserve Budget)

June, July, August, December

Reduce or reallocate spend

Increase budget 25% in January (post-holiday family law surge) and September-October (back to business after summer, accident season). Reduce 30% in summer months when decision-making slows.