How much does Google Ads cost per month for a small business?

Most small service businesses that run Google Ads seriously spend somewhere between $1,000 and $3,000 a month on clicks, plus a management fee if an agency or freelancer runs the account. Google doesn't set that number. You do, and whether it's enough depends on three things: what a click costs in your industry, how many clicks turn into enquiries, and how many enquiries you turn into paying customers. The sensible way to set a budget is to start from the number of customers you want and work backwards. Below is the formula, four worked examples, and the costs that sit outside the ad spend.

How Google actually charges you

On a Search campaign you pay when someone clicks your ad, not when it shows. The price of each click is set in an auction and moves with competition for the keyword, the quality of your ad and landing page, and the time of day.

You don't set a monthly budget in Google Ads. You set an average daily budget. Google's own help page explains that on a given day a campaign might spend up to twice that daily amount, to catch busier days. The trade-off is a monthly ceiling: by the end of the month you won't have spent more than 30.4 times your average daily budget. So if you want to spend about $1,500 a month, you enter roughly $49 a day ($1,500 ÷ 30.4).

What this means in practice:

• A $90 day on a $49 budget is normal. It evens out over the month.
• Pausing and restarting campaigns mid-month makes spending harder to predict. Plan pauses rather than reacting to one expensive day.

The budget formula

You need three numbers:

1. Cost per click (CPC): what you pay, on average, for one visit.
2. Conversion rate: the share of visitors who call, book or submit a form.
3. Close rate: the share of those enquiries that become paying customers.

Starting from a budget:

Budget ÷ CPC = clicks. Clicks × conversion rate = enquiries. Enquiries × close rate = customers.

Starting from a goal:

Target customers ÷ close rate ÷ conversion rate × CPC = monthly budget.

Google Ads reports the first two. The third lives in your own sales process, and it's the number most small businesses have never written down. If you don't know it, count it for one month: enquiries in, jobs won. Nothing else in this exercise is as useful.

Industry benchmarks to start with

The figures below come from LocaliQ's 2026 search advertising benchmarks, built from thousands of its customers' Google Ads and Microsoft Ads campaigns. Two caveats. They're in US dollars, and the data appears to be mostly American. Canadian costs can differ in either direction: some local markets have fewer advertisers and cheaper clicks, while crowded niches in big cities can run higher. Treat these as a first guess and replace them with your own account data after a month or two.

Before you spend anything, Google's Keyword Planner shows the average cost to appear on searches for your own keywords and can forecast clicks and conversions for a given budget. It's free inside a Google Ads account.

Four worked examples

The close rates here are assumptions for illustration. Swap in your own.

Renovation contractor

• $1,500 ÷ $8.33 = about 180 clicks
• 180 × 8.05% = about 14 quote requests
• Win 1 in 4: 3 to 4 jobs

That's roughly $100 per enquiry and $410 per job. On a $20,000 bathroom, easily worth it. On $400 handyman calls, it isn't.

Dental clinic

• $1,500 ÷ $8.00 = about 187 clicks
• 187 × 10.67% = about 20 booking requests
• Half show up and stay: 10 new patients

About $150 per new patient. The real question is what a patient is worth over several years, not on the first cleaning.

Law firm

• $1,500 ÷ $9.87 = about 152 clicks
• 152 × 5.55% = about 8 enquiries
• 1 in 5 retains you: 1 to 2 clients

Close to $900 per client. Fine for a file worth $5,000 in fees, not for low-margin work. It also shows why $1,500 is thin in this field: eight enquiries a month is very little data to learn from.

Gym or fitness studio

• $1,500 ÷ $6.17 = about 243 clicks
• 243 × 6.94% = about 17 trial sign-ups
• 30% join: about 5 new members

Around $300 per member. With a $60 monthly membership kept for a year or more, that can work. If members leave after two months, fix retention before you buy more clicks. Our gym marketing guide covers the rest of that picture.

The cost per enquiry you get from this maths won't match the cost per lead printed in the benchmark report exactly, because each average is calculated separately across different accounts. The order of magnitude lines up, which is what matters for planning.

Work backwards from your goal

Say the renovation contractor wants five jobs a month:

1. 5 jobs ÷ 25% close rate = 20 enquiries
2. 20 enquiries ÷ 8.05% conversion = about 248 clicks
3. 248 clicks × $8.33 = about $2,070 a month

Run it this way and the cheapest lever becomes obvious. Raise the close rate from 25% to 35% and the same five jobs need only about $1,480 in ad spend. Calling enquiries back within minutes instead of the next morning is often cheaper than buying more traffic.

Management fees on top of ad spend

What you pay Google is only part of the bill. If someone else manages the account, add their fee. A 2025 Search Engine Journal column on PPC pricing describes the common models:

• Flat fee plus percentage: $500 to $2,500 a month, plus 5% to 15% of ad spend. Falling out of favour, because it rewards spending more rather than spending well.
• Flat rate: $2,500 to $10,000 a month for full management, usually where ad creative, landing pages and advanced conversion tracking are included.
• Performance-based: a price per lead or sale. Be careful if the agency keeps ownership of the account.

The same column suggests that under roughly $2,500 a month in spend, agency fees can eat too much of the budget, and in-house management or automated tools may be enough. Take that seriously. Paying $1,000 to manage $800 of ads rarely makes sense.

Also budget for:

• Setup: account structure, keyword research and conversion tracking, often billed once.
• A landing page: a page built for the offer usually converts better than your home page.
• Sales tax: applicable sales taxes are added to Google invoices depending on your situation. Google also states that ads served in Canada are no longer subject to its 2.5% digital services tax surcharge.

A realistic monthly total

For a service business getting started, a typical month looks like this:

The first two or three months usually cost more per customer than later ones, because the campaign is still learning which searches and ads pay. Judge results over a quarter, not a week.

When not to run Google Ads

Hold off if:

• Nobody searches for what you sell. New or unusual offers often do better with social ads or content.
• Your website doesn't convert. Every paid click lands there. If you suspect a problem, run through our list of why websites get no leads first.
• Calls go unanswered. An enquiry returned three days later is usually gone.
• Your average sale is too small. If a customer is worth less than it costs to win one, more budget only grows the loss.
• You can't track conversions. Without form and call tracking, you're paying for clicks without knowing what they bring.

Where PNE fits

At PNE Solutions we recommend at least about $1,000 a month in Google Ads spend to get data you can act on, and you keep ownership of the ad account. Our digital marketing service covers strategy, ads, conversion tracking and a monthly report. For Kaltico, a construction and consulting firm, Google Ads was one part of a larger system: a conversion-focused website, landing pages, and a CRM that follows up on every enquiry. That combination usually does more to lower the real cost of a customer than a bigger ad budget.

Sources

• About overdelivery and your average daily budget — Google Ads Help
• Use Keyword Planner — Google Ads Help
• NEW 2026 Search Advertising Benchmarks — LocaliQ
• Ask A PPC: How Much Should PPC Management Cost? — Search Engine Journal
• Jurisdiction-specific surcharges — Google Ads Help