What Google Ads costs a small business in Australia

On This Page

1. How Google charges for ads
2. The budget rules that surprise people
3. Could Google Ads work for you?
4. Which kind of campaign
5. Counting enquiries
6. Click fraud
7. The rules for your ads
8. Is Google Ads worth it?
9. Questions I get asked

Ask what Google Ads costs and you'll get a range so wide it's useless: "$1 to $65 a click", "a few hundred dollars to $15,000 a month". The honest answer is that Google Ads has no price. Every click is an auction, and what you pay depends on who else is bidding in your suburb, how good your ad and landing page are, and how many people actually search for what you do. What you can control is how much you spend, and whether that spend turns into clients. This guide explains how Google charges, works through the rules that surprise people, and gives you a calculator to see whether the numbers could work for you.

bdog's Marketing plan includes running Google Ads, so I have an interest. Everything here comes from Google's own help pages and policies, the ACCC and Ahpra, read on 11 October 2026, plus what I've seen pricing ads for bdog itself. Google publishes no Australian cost benchmarks, and I've said so where it matters.

How Google charges for ads

Google says: "Every time an ad appears, it goes through what we call the ad auction." Your position comes from your Ad Rank, which Google bases on six things, including your bid, "The quality of your ads and landing page", and the context of the search. The price is the part people misunderstand. Google says you "only pay what's minimally required to clear the Ad Rank thresholds" and "beat the Ad Rank of the competitor immediately below you", and you're "never charged more than your max CPC bid" unless you use automated bidding. And: "Higher-quality ads can often lead to lower CPCs."

So the price of your click is set by the business just below you, and a better ad and landing page let you pay less for the same position. That's the part of Google Ads you control besides the budget.

The budget rules that surprise people

You set an average daily budget. Two rules decide what you actually spend:

• A day can run to double. Google: "On a given day, your campaign might spend up to twice your average daily budget".
• The month is capped at 30.4 days. "At the end of the month, you will have spent no more than 30.4 times your average daily budget." Google's own example: a $10 daily budget means you'd be charged at most $304 that month. If Google shows your ads more than that, you get an overdelivery credit.

The newer catch is for ads that only run on weekdays. Google changed how budgets work with ad schedules, so that if you switch ads off on whole days of the week, its system "will now attempt to spend up to" the full 30.4 times your daily budget "regardless of ad scheduling usage". Switching off weekends no longer saves you money; it just spends the month's budget on fewer days.

Set $50 a day and some days you'll see $100 spent; the month still won't pass $1,520. On weekdays only, the ceiling is still $1,520, not the $1,086 you might expect. Budget for the monthly cap, not the daily figure.

GST and billing

Google Australia Pty Limited bills Australian advertisers, and Google's help says "All Google Ads sales in Australia will be subject to a goods and services tax (GST) of 10%." Unlike Meta, Google's page says nothing about an ABN removing it. If you're registered for GST you claim it back; if you're not, budget for the extra 10%. Ask your accountant how to record it.

There's no published minimum spend. Google AU often offers new accounts ad credit once they've spent a set amount in their first couple of months. It's a match on spend, not free money.

Could Google Ads work for you?

Google publishes no Australian benchmarks, and the agency figures on page one don't say where they come from. So instead of a price, here's the arithmetic. Put in your own numbers, and change the cost per click to what Keyword Planner shows for your service and suburb.

With the example numbers: $50 a day is up to $1,520 a month, 190 clicks at $8, about 15 enquiries and between 4 and 5 new clients, at about $333 each. At $600 a client and a 50% margin, that loses about $150 in the month, and you'd break even at about $7.20 a click. Now change one number: lift the website's enquiry rate from 8% to 10% and the same spend makes a profit. The page your ad sends people to moves the result as much as the bid does.

When the limit isn't your budget

When I priced Google Ads for bdog's own website keywords, Keyword Planner's forecast for a month was about five clicks, and raising the bid didn't add any. In a niche, the ceiling is how many people search, not how much you can spend. Keyword Planner shows search volumes and a "Top of page bid" range for each keyword; Google describes the low figure as roughly the 20th percentile of what advertisers paid to show at the top, and the high figure as roughly the 80th. Check both before you set a budget.

Which kind of campaign

• Search campaigns show your ad for the searches you choose. For most local service businesses, this is where I'd start: a handful of specific keywords for your services and area, sending people to the matching page on your site.
• Smart campaigns are Google's simplified option, set up from "keyword themes" and a budget. Your ads can also show on Maps, YouTube and partner websites. Easy to start, but you can't choose exact search terms.
• Performance Max runs across all of Google's inventory "from a single campaign" and optimises towards your conversion goal. Without accurate conversion counting, it optimises towards whatever you've told it counts, which can mean cheap, poor enquiries.
• Local Services Ads, the pay-per-lead ads with the "Google Guaranteed" badge, aren't offered in Australia as far as I could find; Google's help site lists the US, Canada and parts of Europe. If someone sells you "Google pay per lead" here, ask exactly what it is.

Counting enquiries

None of the sums above work unless Google knows which clicks became enquiries. Google can count website enquiries through its tag, and calls from your ads or website using Google forwarding numbers, where "every call that lasts at least" the minimum length you set "is counted as a conversion". One lesson from my own setup: the enquiries have to be counted in the same Google Ads account that's paying for the clicks. If your website's tag reports to a different account, Google sees no results and can't learn.

Click fraud

A common worry is competitors clicking your ads. Google says invalid clicks, including "Manual clicks meant to increase someone's advertising costs" and bots, are filtered, and "You won't be charged for invalid clicks". Ones it catches after you've been billed come back as credits on a later invoice. You can add an "Invalid clicks" column to your campaign table, and you can ask Google to investigate, but only for the past 60 days.

The rules for your ads

Every business: competitor names and claims

Google's trademark policy doesn't restrict using a trademark as a keyword, but can restrict a competitor's trademark in your ad text after a complaint. Australian law cares about the ad itself. In a 2013 High Court case, advertisers whose search ads used competitors' names in a way that suggested an association were found to have misled; Google wasn't liable, but they were. And the Full Federal Court found in an ACCC case that search ads with headlines like "Fair Work Ombudsman Help" misled small businesses into thinking they were dealing with a government agency. Your headline is your representation: no competitor's, regulator's or government body's name, and no "official" or "free" unless it is.

Clinics and health services

Ahpra's advertising rules cover search ads like any other advertising: no testimonials, terms stated for any offer or discount, and no "unreasonable expectation of beneficial treatment". Google adds its own rule: "Ads targeting Australia can't use prescription drug terms in the ad or its destination", meaning the page the ad sends people to counts too. I'd also think twice before adding star-rating extensions to a clinic's ads.

Brokers, advisers and insurers

Google requires financial services advertisers to be verified "in order to show financial services ads in Australia", proving they're licensed by ASIC, usually through Google's vendor G2RS. Build that time in before launch.

Is Google Ads worth it?

For a local service business that people search for, it can be: someone typing "physio near me" or "family lawyer" into Google is about as close to booking as anyone gets. It's worth it if your cost per client comes in under what a client is worth, which depends on the click price in your area, the page your ads land on, and how fast you answer enquiries. It isn't worth it if hardly anyone searches for what you do, or if your landing page loses most of the clicks you pay for. Run a small test, count the enquiries properly, and decide from your own numbers.

Questions I get asked

How much does Google Ads cost per month in Australia?

Whatever you set. Your monthly spend is capped at 30.4 times your average daily budget, so $20 a day is at most $608 a month and $50 a day at most $1,520, plus 10% GST.

Is $10 a day enough for Google Ads?

It's up to $304 a month. Divide that by the cost per click for your keywords: if it buys fewer than about 100 clicks a month, it's too little to tell whether the campaign works.

Why did Google spend more than my daily budget?

Google can spend up to twice your daily budget on a single day, but never more than 30.4 times it in a month. If it serves more than that, you get a credit.

Does Google charge GST on ads in Australia?

Yes. Google Australia adds 10% GST to Google Ads in Australia. A GST-registered business claims it back; ask your accountant.

Are Local Services Ads available in Australia?

Not as far as I could find. Google's help site lists the US, Canada and parts of Europe for its pay-per-lead Local Services Ads.

Do I get charged when competitors click my ads?

Google says it doesn't charge for invalid clicks, including clicks meant to increase your costs, and credits ones it catches later. You can ask for an investigation within 60 days.