Short answer
- Ad spend is set by you. Google charges per click on Search, and what a click costs depends on your industry, location and competition.
- Management is usually a flat monthly fee or a percentage of ad spend. Mine is $250/month plus your ad budget.
- The number that matters isn't cost per click, it's cost per customer. A $15 click can be cheap and a $2 click can be expensive.
- Get real estimates for your own keywords from Google's free Keyword Planner before you set a budget.
The three costs of Google Ads
1. Ad spend. This goes to Google, from your own card, inside your own Google Ads account. You set a daily budget and Google won't go meaningfully past it over a month. On Search campaigns you mostly pay when someone clicks.
2. Management. Someone has to choose keywords, write ads, set up tracking, block bad searches and adjust bids every week. That's either your time or a fee to a freelancer or agency.
3. The hidden cost: waste. Clicks from people looking for jobs, DIY tutorials or a business three states away. Calls you never knew came from ads because tracking was missing. This is often the biggest cost of all, and it's invisible unless someone looks at the search terms report.
What drives your cost per click
Google Ads is an auction. When someone searches, Google decides which ads show and in what order based on your bid, the quality and relevance of your ad and landing page, and other factors. You can read Google's own explanation of how ad rank works.
| Factor | Why it pushes clicks up or down |
|---|---|
| Value of a customer in your industry | Lawyers, roofers and emergency trades can afford to pay more per lead, so competitors bid higher |
| Location | Big metro areas usually have more advertisers than small towns |
| Urgency of the search | "Emergency plumber now" attracts higher bids than "how to fix a dripping tap" |
| Your ad and page quality | A relevant ad and a useful landing page can earn a better position for a lower price |
| Time and device | Some hours and days are more competitive; you can schedule ads around them |
Because these vary so much, I don't trust anyone quoting a single "average cost per click" for small businesses. Check the estimates for your own services and area in Keyword Planner. It's free with a Google Ads account.
A worked budget example
All numbers below are made up to show the math. Swap in your own.
| Step | Hypothetical number |
|---|---|
| Monthly ad budget | $900 |
| Average cost per click | $6 |
| Clicks per month | $900 ÷ $6 = 150 |
| Share of clicks that call or fill a form | 10% → 15 leads |
| Share of leads that become customers | 40% → 6 customers |
| Ad cost per customer | $900 ÷ 6 = $150 |
| Add $250 management | $1,150 ÷ 6 ≈ $192 per customer |
Whether $192 is a good price depends entirely on what a customer is worth to you. For a roofer whose average job is $9,000, it's a bargain. For a cafe selling $12 lunches, it's a disaster. That's why I always start with your numbers, not the platform's.
Management fees and pricing models
| Model | How it works | Watch out for |
|---|---|---|
| Flat monthly fee | Same fee each month regardless of spend | What's included each month, and the minimum term |
| Percentage of ad spend | Often around 10–20% of spend, usually with a minimum | It rewards raising your budget |
| Setup fee + monthly | One-off fee for building the account, then a lower monthly fee | Who owns the account and the work afterwards |
| Pay per lead | You pay for each lead delivered | How a "lead" is defined, and whether leads are shared |
The percentage range above is a commonly quoted range, not data. Prices vary widely by provider and country. More on comparing quotes in Marketing agency costs and on choosing who runs your account in Hire a Google Ads expert.
My own pricing is simple: Google Ads management is $250 a month, plus the ad budget you pay Google directly. The account stays in your name.
Where small budgets leak
- Broad keywords without negatives. Searches like "plumber salary" or "free logo maker" eat clicks. A weekly look at the search terms report and a negative keyword list fixes most of it.
- Location set too wide. Make sure the location option targets people actually in or regularly in your area if that's who you serve. Google explains the location options.
- No conversion tracking. Without call and form tracking, Google's bidding is guessing, and so are you.
- Sending everyone to the homepage. A page built for the one service in the ad usually converts better. See PPC landing pages.
- Running ads 24/7 when nobody answers. If calls at 11pm go to voicemail, consider scheduling ads for when you can respond.
The free Google Ads checklist walks through these settings in a few minutes.
How much to start with
A practical way to set a first budget:
- Pick your 1–2 most profitable services. Don't advertise everything at once.
- Look up their estimated cost per click in Keyword Planner for your area.
- Aim for enough budget to get a meaningful number of clicks per month, so you can learn something. If a month only buys a handful of clicks, start smaller in scope (one service, tighter area) rather than spreading thin.
- Run for at least 4–8 weeks, then judge cost per lead and cost per customer, not clicks.
If the budget you can afford buys very few clicks in your industry, Local SEO and a strong Google Business Profile may be a better first step, with ads added later. My SEO vs SEM vs PPC guide explains that trade-off.