How Much Should A Small Business Spend On Google Ads?

One of the first questions local business owners ask about Google Ads is: "How much do I need to spend?" The honest answer is that it depends on your market, your service, your cost per lead target, and your goals — but there are practical benchmarks that apply to most Canadian local businesses.

The minimum viable Google Ads budget for most local service businesses is $500 per month in ad spend. Below that threshold, your ads will show inconsistently, your data will accumulate too slowly to optimize effectively, and you will likely see disappointing results that lead you to conclude Google Ads does not work — when the reality is the budget was simply too small to compete.

For most competitive local services in mid-size Canadian cities — plumbing, HVAC, dental, legal, renovation — a starting budget of $1,000 to $1,500 per month in ad spend is more realistic. This gives your campaign enough daily budget to show consistently throughout the day, gather data quickly, and generate enough leads to evaluate performance properly within the first 30 to 60 days.

In major metro markets like Toronto, Vancouver, or Calgary, highly competitive categories — personal injury law, cosmetic dentistry, roofing — can require $3,000 to $5,000 per month in ad spend just to be competitive. The cost per click in these categories can be $15 to $30 or higher, meaning a $500 budget might only generate 20 to 30 clicks per month — not nearly enough to generate consistent leads.

A more useful way to think about budget is to work backwards from your target cost per lead and desired lead volume. If your service generates $2,000 in profit per customer and you convert 30% of leads to customers, you can afford to spend up to $600 on a lead and still be profitable. If your industry average cost per click is $8 and your landing page converts at 10%, your cost per lead is $80 — well within range.

Management fees are separate from ad spend. At OMA, our Google Ads management starts from $199 per month. This covers campaign setup, ongoing optimization, monthly reporting, call tracking, and conversion tracking. The management fee is in addition to whatever you are spending on the ads themselves. Be cautious of agencies who charge a percentage of ad spend — this creates an incentive to increase your budget regardless of whether it is producing results.

Budget increases should be data-driven. Start with a conservative budget, establish your baseline cost per lead, identify which keywords and ads are generating the best leads, then scale the budget into what is already working. Increasing budget without having established what is working is how businesses end up spending thousands with little to show for it.