How Do Google Ads Work?
Before you spend your own money, it helps to understand what you are actually buying. Here is the auction, the bidding, the campaign types worth using and what a click really costs in Australia.
Google Ads runs a fresh auction every time somebody searches. You set a maximum bid, Google works out an Ad Rank from that bid and a Quality Score covering expected click rate, ad relevance and landing page experience, then the highest Ad Rank shows first. You almost never pay your full maximum bid. In Australia a click typically costs $3 to $25 excluding GST depending on the industry.
How does the Google Ads auction actually work?
There is no price list, and no way to simply buy the top spot outright. Every single search on a keyword you have targeted triggers an auction that resolves in about the time it takes the results page to paint. Google works out an Ad Rank for everyone eligible to appear and orders the ads by that number.
Ad Rank is your bid multiplied by your ad quality, then adjusted for the context of that particular search: the device, the location, the time of day, what the person searched a minute earlier, and how much your assets are expected to add. Two businesses bidding the identical $10 on the identical keyword can sit in different positions, paying different amounts, on the same afternoon.
There is also a floor. Google applies Ad Rank thresholds, so a thin ad pointing at a slow, irrelevant page may not show at all, whatever you bid. We have taken over accounts where the owner had doubled the bids twice and nothing changed, because the bid was never the problem.
Do you pay your maximum bid every time?
No. Your maximum bid is a ceiling, not a price. What you get charged is roughly the minimum needed to beat the Ad Rank of the advertiser directly below you, plus a cent. Better ad quality means you need less bid to hold the same position, so you pay less for the same click.
Say you set a maximum bid of $14 on emergency plumber parramatta. The advertiser below you has weaker copy and a homepage for a landing page. Google might only charge you $7.20 for that click. Multiply that gap across a few thousand clicks and you can see where accounts either save money quietly or haemorrhage it quietly.
What is Quality Score and how much does it change your costs?
Quality Score is a 1 to 10 diagnostic Google attaches to each keyword, built from three inputs: expected click through rate, how closely the ad matches the search, and landing page experience. It is not a vanity number. It divides straight into what you pay.
Lifting a keyword from a 4 to an 8 can cut cost per click by a third or more for the same position, without spending another dollar. It is the cheapest lever in most accounts and almost nobody pulls it, because the fixes are unglamorous: smaller ad groups, ad copy that repeats the exact phrase people typed, and a landing page about that one service instead of a homepage listing nine.
Do not obsess over the score itself. Treat the three components as a checklist. If landing page experience reads below average, you have a website problem dressed up as an ads problem.
Turn off auto-apply before you do anything else. Google switches most new accounts on to auto-applied recommendations by default, which can loosen your match types and lift budgets while you sleep. It lives in the Recommendations tab. The same scepticism applies to a friendly call from a Google rep suggesting broad match and Performance Max in week one: their target is your spend, not your cost per lead.
What do broad, phrase and exact match do to your budget?
Match type controls how loosely Google may interpret your keyword. Get it wrong and a month of budget is gone before the first invoice arrives. Broad match is the default, and it is the most expensive lesson most first time advertisers pay for.
| Match type | How you write it | What it triggers | What it costs you |
|---|---|---|---|
| Exact | [emergency plumber parramatta] | That search and very close variants, including plurals and obvious synonyms | Tightest control and the least waste, but limited volume on its own |
| Phrase | "emergency plumber parramatta" | Searches that carry that meaning, with words allowed before or after | The sensible default for most Australian service businesses starting out |
| Broad | emergency plumber parramatta | Anything Google decides is related, which has included plumbing apprenticeships and tap washers at Bunnings | Highest volume, highest waste. Needs a mature negative list and real spend to behave |
Broad match is not evil. It works once an account has months of conversion data feeding a smart bidding strategy and a negative list with a few hundred entries in it. On a new account spending $1,500 a month excluding GST, it is a money incinerator. Start on exact and phrase, and if you want broad later, run it as a separate campaign with its own budget so you can see what it is doing to you.
Why do negative keywords decide whether the account works?
Negatives tell Google what you never want to appear for. Skip them and a Sydney conveyancer ends up paying $28 a click for people searching conveyancing courses, conveyancing salary and free contract template. That is not a hypothetical. It is what the search terms report looks like on nearly every account we inherit.
Build a shared negative list at account level covering the predictable money burners: free, cheap, DIY, jobs, salary, career, course, training, template, wikipedia, youtube, second hand, wholesale, plus any suburbs, states or countries you do not service. Then read the actual search terms report weekly for the first month and fortnightly after that. Every account leaks. The job is to keep plugging holes, forever.
One caution on competitors. Adding rival brand names as negatives is fine and often smart. Bidding on them is legal in Australia, but using a competitor’s trade mark inside your ad text invites a complaint and can run foul of misleading conduct rules, so keep their name out of the copy.
Which campaign type should a small Australian business actually start with?
Search. Almost always Search, and only Search, for the first 60 to 90 days. Someone typing emergency electrician near me at 7pm on a Tuesday is at the bottom of the funnel with a wallet out. Everything else is a distraction until you have conversion data worth optimising against.
| Campaign type | What it does | Who it suits | Typical risk |
|---|---|---|---|
| Search | Text ads shown against what people type into Google | Trades, professional services, healthcare, legal, anyone with clear intent keywords | Low, provided match types and negatives are handled properly. Start here |
| Performance Max | One automated campaign spanning Search, Display, YouTube, Gmail, Discover and Maps | Ecommerce with a healthy product feed and $5,000 or more a month to spend | High on small budgets. Almost no visibility, and it absorbs your own brand searches |
| Shopping | Product listings with image, price and store name | Retailers running a Google Merchant Center feed | Medium. Feed quality decides everything. No use at all to a service business |
| Display | Banner ads across millions of websites and apps | Remarketing to people who already visited your site | Medium to high. Huge reach, poor intent, easy to lose $800 to mis-taps in mobile games |
| Demand Gen | Image and video ads inside YouTube, Discover and Gmail | Brands with genuinely good creative and a longer buying cycle | High. Creating demand costs more than capturing it, and small budgets cannot fund both |
We will be blunt about Performance Max. Under about $3,000 a month excluding GST it is usually a poor deal for an Australian service business. You cannot see which placements ate the budget, keyword level control barely exists, and it cheerfully buys clicks from people searching your own business name then reports those as fresh conversions. The dashboard looks fantastic. The phone does not ring more. We do run Performance Max alongside the Search campaigns we manage when the budget and the data justify it, and we tell people no when they do not.
Do ad assets and extensions actually matter?
Yes, and they cost nothing. Assets are the extra lines under your ad: sitelinks, callouts, structured snippets, a tap to call button, your location, prices, images. They make the ad physically larger on a phone screen, and their expected impact feeds directly into Ad Rank.
Fill in at least four sitelinks, four callouts, a call asset and a location asset tied to your Google Business Profile. Forty minutes, once. Accounts that skip it routinely lose position to competitors bidding less, which is a fairly stupid way to lose.
Does the landing page change what you pay?
It does, twice over. Landing page experience is one of the three Quality Score inputs, so a slow or off topic page pushes your cost per click up. And the page obviously decides whether that click becomes an enquiry at all.
The most common mistake by a mile is pointing every ad at the homepage. If the ad promises split system air conditioning installation and the page is an About Us with a slider on it, you have just paid $18 for a stranger to go hunting. Send the click to a page about that single service, with the phone number visible without scrolling, a short form asking for name, phone, suburb and problem, and proof you are real: licence number, photos of real jobs, a few local reviews. On mobile, anything slower than about three seconds bleeds conversions quietly.
This is where most wasted ad budget really goes, and it is usually the first thing we rebuild when a client hands over their Google Ads account for us to manage. Fixing the page often beats fixing the bids.
Why is conversion tracking non negotiable?
Because without it you are guessing, and worse, so is Google. Every automated bidding strategy optimises towards conversions. No conversion data means Smart Bidding has nothing to aim at, so it aims at clicks instead, and it is extremely good at buying those.
Track the things that represent money: form submissions, calls placed straight from the ad, calls from the website using dynamic number insertion, and confirmed bookings. Do not count a page view, a scroll or a fifteen second visit as a conversion. Doing that teaches the algorithm to buy you more worthless traffic with impressive efficiency.
Set it up before the first dollar is spent. Retrofitting tracking three weeks in means the first three weeks of data are unusable, and you have already paid for them.
The number to work out before you launch. If you cannot say what a customer is worth to you over twelve months, do not switch the campaign on yet. Google Ads is a machine for turning a known cost per lead into revenue. Without that figure you are buying traffic and hoping.
What does a Google Ads click actually cost in Australia?
Enough that you need your numbers straight first. These are the ranges we typically see across Australian accounts, excluding GST. Treat them as a planning guide, not a quote, because the same keyword costs very different money in Sydney than in Ballarat.
| Industry | Typical cost per click (AUD, ex GST) | What drives it |
|---|---|---|
| Emergency trades: plumbing, electrical, locksmiths | $8 to $25 | Spikes after hours, on weekends and through storm season |
| Legal: family, personal injury, compensation | $20 to $80 | The most expensive category in the country, by a distance |
| Finance, mortgage broking, insurance | $15 to $60 | Comparison sites and aggregators bid hard on everything |
| Dental, cosmetic and allied health | $6 to $20 | Implants, orthodontics and cosmetic sit at the top of the range |
| Home improvement: solar, pools, landscaping, fencing | $6 to $22 | Seasonal, and heavily contested by lead resellers |
| Accounting, bookkeeping, business advisory | $7 to $25 | Rises sharply around June and the end of the financial year |
| Ecommerce and retail through Shopping | $0.40 to $2.50 | A volume game where product margin decides whether it works |
Work backwards from those figures. If a click costs $15 and one in ten clicks becomes an enquiry, a lead costs you $150. If one enquiry in three turns into a $4,000 job, the maths is comfortable. If your average job is $180, it is not, and no amount of clever campaign structure will rescue it.
On budget: below roughly $1,000 a month excluding GST, a Search campaign in a competitive category never gathers enough clicks to learn anything useful. Most Australian service businesses find a stable cost per lead somewhere between $1,500 and $3,000 a month. If you want to weigh that against other channels before committing, the rest of our Google Ads and paid marketing guides cover budgets, platform choice and what agencies charge to run it.
Common questions
How long before Google Ads starts producing leads?
Clicks arrive the day you switch it on. Useful leads usually take two to four weeks, because the first fortnight goes on finding the searches that waste money and cutting them out. Give any new account 90 days on a consistent budget before you judge it. Accounts that get paused and restarted every few weeks never build the conversion history that automated bidding needs to work.
Can I run Google Ads myself or do I need someone to manage it?
You can, and plenty of owners do it competently. Budget three to five hours a week, most of it spent reading the search terms report and adding negatives. The rough break even sits around $2,000 a month in spend: below that, management fees eat too much of the budget; above it, a decent manager usually saves more than they charge. What does not work is setting it up and walking away.
Why does Google keep telling me to increase my budget?
Because the Recommendations tab is part diagnostic tool, part sales channel. Some suggestions are genuinely worth applying, like adding sitelinks or fixing a disapproved ad. Others, particularly budget increases, broad match expansion and Performance Max upgrades, exist to grow spend. Read each one on its merits, apply the ones that improve relevance, ignore the ones that only improve Google’s revenue, and keep auto-apply switched off.
Does clicking my own ad cost me money?
Yes. Every click gets billed, including yours. Google’s invalid click filtering catches obvious repeat clicking from the same device and usually credits it back, but do not rely on that as a system. If you want to see how your ad looks live, use the Ad Preview and Diagnosis tool inside the Google Ads interface. It shows the real results page without charging you or skewing your click through rate.
Do Google Ads help my organic search rankings?
No. Paid clicks have no direct effect on organic position, and Google has said so repeatedly for years. The indirect benefit is real though: ads tell you within a few weeks which keywords actually convert into enquiries, which is exactly the information you want in hand before spending six months and a few thousand dollars on SEO content. Use ads as paid research, not as a shortcut to rankings.
What counts as a good click through rate on Google Ads?
For Search campaigns in Australian service categories, 5 to 12 per cent is healthy, and ads on your own business name often run above 20 per cent. Sitting under 3 per cent usually means the ad copy is not echoing the phrase people typed, or your match types are too loose and you are showing for searches you should never appear in. Display rates are a fraction of that and mean far less.
Want the account built properly the first time?
Tell us what you sell, what a customer is worth and what you can spend each month. We will tell you honestly whether Google Ads stacks up for your numbers, and what a sensible starting campaign looks like. No lock-in contracts, Australian based support.