There's No One "Right" Budget
One of the most common questions we get is simply: "How much should I spend on Google Ads?" The honest answer is that it depends heavily on your industry, your average customer value, and how competitive your keywords are. But there are still some practical guidelines that apply to almost every business getting started.
Minimum Viable Budget
As a general rule, we recommend a minimum of around $1,500 per month for Google Ads. Below that, campaigns often don't generate enough data — clicks, conversions, and impressions — for the algorithm or your team to make informed optimization decisions. You end up paying for a slow, inefficient learning phase without ever really getting past it.
How to Calculate Your Target CPA
Your target Cost Per Acquisition (CPA) should be based on what a customer is actually worth to you. A simple starting formula: take your average customer value, multiply it by your profit margin, and that gives you a rough ceiling for what you can afford to pay to acquire one customer while staying profitable. Everything you spend below that ceiling is where your real margin lives.
ROAS Benchmarks by Industry
Return on Ad Spend (ROAS) targets vary a lot by industry. E-commerce brands often aim for a 3x-5x ROAS depending on margins. Service-based businesses tend to think in terms of cost per lead rather than ROAS directly, since the sale often happens after the ad click. SaaS and subscription businesses need to factor in customer lifetime value, not just the first payment, when judging whether a campaign is actually profitable.
Common Budget Mistakes
The most common mistake we see is spreading a small budget across too many campaigns and keywords at once — nothing gets enough data to actually optimize, and the account never leaves its learning phase. The second most common mistake is not tracking conversions properly, which means decisions end up based on guesswork instead of real numbers.
Getting your budget and targets right from the start saves months of wasted spend. If you'd like a second opinion on your current numbers, our PPC Management service starts with a full account audit.