I talk to small business owners about Google Ads a lot. The conversation usually starts the same way: “I’m spending money on Google Ads but I have no idea if it’s actually doing anything.”
It’s a fair question. Google’s dashboard throws dozens of metrics at you, most of them irrelevant to whether your phone is ringing more than it was before you started paying.
If you haven’t switched ads on yet, start one step earlier: check whether your budget can buy enough clicks to learn anything.
Here’s what I’ve learned from auditing Google Ads accounts for businesses across Melbourne: you only need to look at five numbers. Everything else is noise until those five are healthy. And if an agency runs the account for you, there’s a second question behind the first one: can you actually see those numbers yourself?
What does “working” actually mean for Google Ads?
Google Ads is working when it generates leads or sales at a cost that leaves you with profit. That’s it.
Impressions, clicks and “brand awareness” are activity metrics, and they can all look fantastic while your campaign quietly burns money. I’ve seen accounts with thousands of clicks and a conversion rate of 0.3%. The dashboard looked busy. The phone was silent.
The useful question is whether people see your ads, click on them, and then do the thing you want them to do: call you, fill out a form, book an appointment or buy something.
I audited one account recently where the business owner was thrilled because impressions had more than quadrupled - from 12,000 to 50,000 per month. Great. But conversions had dropped from 15 per month to 8. The ads were being shown to more people, yes - just not the right people. Impressions without conversions is just expensive visibility.
A well-running campaign looks like this: you’re paying AUD $45 per qualified lead for a service worth $800 to you, and your search terms report is 90% relevant traffic. That’s the target.
If you can’t answer that question from your dashboard, you probably don’t have conversion tracking set up properly. That’s the first thing to fix, and it’s step one of the audit checklist below.
The 5 numbers you need to check right now
These five run in order for a reason. The first two tell you whether your numbers can be trusted at all. The last three are the economics. Industry benchmarks appear throughout for context, and that’s all they are: they tell you what’s typical for your sector. Whether your campaign is healthy gets answered by your own break-even maths, which is number five.
1. Tracking integrity - can you trust your numbers at all?
Before any other number means anything, your conversion tracking has to work. Go to Tools > Conversions. Are there active conversion actions? Do they show recent conversions? Google’s own documentation on conversion measurement explains how it works and links out to the setup instructions, and Stape has a detailed guide covering both client-side and server-side tracking methods.
The quickest test: fill out your own contact form, or call your own tracking number. If it still hasn’t shown up in your account a day later, something is probably broken, and every other number you look at is fiction until you fix it.
2. Qualified leads - is the phone ringing with real enquiries?
A “conversion” in the dashboard is a recorded action. A qualified lead is someone you’d actually quote. They’re not the same thing, and Google will cheerfully count spam form submissions, wrong numbers, and job seekers as conversions. Cross-check the dashboard against your inbox, call log, or CRM for the same period, and count the enquiries you’d genuinely want more of. That count, not the platform’s, is what the rest of the maths runs on.
3. Conversion rate - are visitors actually doing something?
WordStream analysed 13,474 US search advertising campaigns across 23 industries between April 2025 and March 2026 and found a Google Ads average conversion rate of 8.18%. If yours is below 2%, look hard at your landing page and your offer. Paid clicks just make a leaky page more expensive, so it’s worth checking where enquiries are actually escaping - I run through the seven most common spots in before you pay for SEO: 7 enquiry leaks to check first.
Auto repair and service businesses convert at 15.51%, near the top of the table (only pets-and-animals businesses rank higher). Real estate sits down at 3.70%, and finance and insurance is the lowest of all at 2.64%. Know your industry benchmark before you panic about yours.
4. Cost per qualified lead - what does each real enquiry cost you?
Divide your ad spend by the qualified-lead count from number two, not by the dashboard’s conversion total. For context, WordStream’s 2026 benchmarks put the average cost per lead at $66.69 USD, with a huge spread by industry: arts and entertainment at the bottom on $26.84, shopping, collectibles and gifts at $49.40, home improvement at $90.92, and attorneys and legal services at the top on $131.63 (WordStream, 2026).
Those are US dollars from US campaigns. A note on Australian figures: an earlier version of this article carried a per-industry AUD cost-per-lead chart credited to an industry report. When I traced the chain for this update, the agency roundup it came from actually attributes those numbers to a blend of US benchmarks and “agency-aggregated data”, not a published Australian study, so the chart’s gone. I haven’t found reliable public AUD lead costs by industry. If you see them in an agency roundup, treat them as estimates.
If your cost per qualified lead is more than double your industry average, that’s worth investigating. If it’s below average, you might have room to increase your budget and get more leads at a price that works. Either way, the benchmark is context. The comparison that actually decides things is the next number.
5. Return against break-even - does the maths actually work?
This is the number no dashboard shows you, and it’s the one that decides whether the ads are “working.” Work backwards from what a customer is worth. If a customer is worth $500 to you and a qualified lead costs $70, you can afford about seven leads for every customer you win. Close better than one in seven and the ads are making you money. Close worse and they’re not, no matter how busy the dashboard looks.
Google’s own estimate is that businesses make $2 in profit for every $1 they spend on Google Ads. That figure comes from their Economic Impact methodology (developed by Google’s first chief economist, Hal Varian, back in 2009), so take it with a grain of salt - it’s Google measuring the value of Google.
That average doesn’t pay your invoices. The question is whether your return clears your break-even, on numbers you’ve cross-checked yourself.
Two supporting diagnostics: CTR and CPC
Click-through rate and cost per click usually get top billing in articles like this. They shouldn’t. Both are pointers: they tell you where to look when one of the five numbers above is off, and on their own they can’t say whether the ads are working.
Click-through rate (CTR) tells you whether your ad copy and targeting match what people are searching for. The 2026 Google Ads average is 6.64% (WordStream, 2026); restaurants and food businesses average 6.83%, attorneys 5.87%, so compare within your industry, not across it. A low CTR usually means one of two things: your keywords don’t match your ads, or your ad copy isn’t convincing enough to get the click. Sometimes both. I’ve seen accounts where the ads were actually decent, but they were showing up for searches that had nothing to do with the business. That’s a targeting problem, and it needs a different fix from weak copy.
Cost per click (CPC) is what you pay for each visitor. The 2026 Google Ads average is $5.42 USD (WordStream, 2026). For Australian click prices, I pulled Google’s own estimates for 21 Melbourne service searches in Is $20 a day enough for Google Ads?, and the cheapest came in at about A$4.81 a click. A high CPC isn’t automatically bad. WordStream’s dentistry averages are $8.00 a click with 10.67% of clicks converting, which works out at about $75 per conversion. Paying the same $8.00 a click with a 1% conversion rate works out at about $800 per conversion. CPC only means something next to conversion rate and lead value.
Where does Quality Score fit? (Not where you might think)
Quality Score is Google’s 1-10, keyword-level rating of how relevant your ads and landing page are, built from three components: expected CTR, ad relevance, and landing page experience. For years, articles like this one treated it as a headline health metric. An earlier version of this article did too. Google’s own guidance is blunt about what it actually is: “Quality Score is not a key performance indicator and should not be optimized or aggregated with the rest of your data”, and it “is not an input in the ad auction”. It’s a diagnostic tool.
So use it the way Google says to: for troubleshooting. The ad quality Google calculates at auction time does affect what you pay and where you show, and the three QS components point you at what to improve. If landing page experience reads “below average,” the page your ad points to probably doesn’t deliver what the ad promised, and Core Web Vitals (page speed and visual stability) feed into that experience too. Fix the component and let the number follow.
How to read your Google Ads dashboard without losing your mind
Google’s interface changes constantly, and it shows you way too much data by default.
Start in Campaigns, not Overview. The Overview tab is Google’s curated highlight reel. It shows what Google chooses to highlight. Go to Campaigns instead.
Add the columns that matter. By default, you’ll see impressions and clicks. You need to add: CTR, Avg. CPC, Conversions, Conv. rate and Cost/conv. Quality Score sits at keyword level, so you’ll find it in the Keywords view rather than Campaigns. Right-click on any column header and select “Modify columns” to add them.
Filter by date range. Look at the last 30 days first. If you’ve been running ads for a while, compare to the previous 30-day period. Are things getting better or worse?
Check the Search Terms report. This is the most revealing report in the entire dashboard, and it’s the one most business owners have never looked at. It shows you the actual words people typed before they saw your ad. Go to Keywords, then Search Terms.
You will almost certainly find searches in there that have nothing to do with your business. Every click on an irrelevant search is money gone. I once audited an account for a Melbourne landscaper who was spending $1,200 per month. About $400 of that was going to clicks from people searching “landscape painting classes” and “landscape photography tips.” Different kind of landscape. After adding negative keywords and tightening match types, their cost per lead dropped from $95 to $42.
The fix is adding negative keywords - telling Google “don’t show my ad when someone searches for this.” It takes ten minutes and can save you hundreds of dollars a month.
Brad Geddes, one of the most respected PPC experts in the industry, puts it this way in his 2026 Search Engine Land article: not adding your top search terms as keywords and applying old negative-keyword lists without reviewing what’s in them are two of the top 10 mistakes he sees across Google Ads accounts.
The 5 most common ways small businesses waste their ad budget
I’ve borrowed from Brad Geddes’ list (Search Engine Land, January 2026) and added what I see specifically in Australian SMB accounts.
1. No conversion tracking (or broken tracking)
If you don’t know how many people called you, filled out your form, or booked an appointment after clicking your ad, you can’t tell if anything is working. You’re flying blind. It’s number one on the scorecard above for a reason: nothing else in this list matters until it’s fixed.
2. Ignoring the Search Terms report
I mentioned this above because it’s the single biggest source of waste I see. I regularly find 20-30% of ad spend going to completely irrelevant searches. One Melbourne tradie I audited had a monthly spend of $2,100 - and $630 of it was going to clicks from people searching for DIY tutorials. Those people were never going to hire him. We cut that waste in the first week just by adding negative keywords.
3. Blindly accepting Google’s recommendations
Google’s Optimisation Score and auto-applied recommendations are designed to get you to spend more. Geddes says it plainly:
“Google’s recommendations are sometimes in your best interest. They are always in Google’s best interest.”
- Brad Geddes, Search Engine Land, January 2026
Some recommendations are fine. Some will broaden your targeting to irrelevant audiences or switch you to ad formats that don’t suit your business. Check each one individually. Don’t hit “Apply all.”
4. Using broad match keywords with automated bidding and no guardrails
Broad match can work, but only if you pair it with a target CPA or target ROAS bidding strategy, and you’re watching the Search Terms report closely. Without those guardrails, broad match will happily show your ad for searches that have nothing to do with what you sell.
5. Ignoring what Quality Score is trying to tell you
Quality Score is a diagnostic (see above), but a keyword sitting at 3 with a “below average” component is Google telling you exactly where the relevance problem is. Make sure your ad copy matches your keywords, and that your landing page actually delivers on what the ad promises.
If an agency runs your ads
Everything above works whether you run the account yourself or pay someone to. If it’s an agency, a few more checks matter, and most of them come down to whether you can see the real numbers at all.
Make sure you hold Admin access to your own account. The Google Ads account should be in your business’s name, with you as an Admin through your own Google login. In Google’s access-level table, only the Admin level can give people access, change their access level and unlink a manager account, which is the kind of account agencies use to run many clients from one place (Google Ads Help). Google also suggests having more than one admin, because an account with a single admin can lose access to its tags if that person becomes unavailable. If the agency is the only admin, your ad history effectively sits with them.
Try this: in your Google Ads account, open the Admin menu, then Access and security, and look at who’s listed with Admin access. If it isn’t you or someone inside your business, ask the agency to add you this week. A good agency won’t mind.
Ask three questions every month. Ask them three questions: what is my cost per lead, how has it changed over the last 3 months, and what changes have you made recently? If they can’t answer all three clearly and specifically, that’s a red flag. You should have full access to your own Google Ads account, rather than a separate “reporting dashboard” that shows you filtered data. If your agency won’t give you direct access to the Google Ads account, I’d be asking why.
Ask for the search terms report itself. It’s the report that shows what you actually paid for (see above). A summary slide of “top keywords” isn’t the same thing.
Match their conversions to your real enquiries. Take the agency’s conversion count for last month and set it next to the enquiries in your inbox and call log, the same cross-check as number two. If theirs is a lot higher, ask what’s being counted.
A 15-minute self-audit checklist
You can run through this in about 15 minutes, with your Google Ads account open in one tab and your inbox or call log open in another so you can check the dashboard against real enquiries.
- Verify your conversion tracking. Go to Tools > Conversions. Are there active conversion actions? Do they show recent conversions? If this page is empty or the last conversion was months ago, stop here and fix this first.
- Pull up the Search Terms report. Go to Keywords > Search Terms. Sort by cost. Are the top 10 most expensive search terms relevant to your business? Add irrelevant terms as negative keywords.
- Count your qualified leads, and the customers they turned into. Cross-check the dashboard’s conversions against your inbox or call log for the last 30 days, then divide your spend by the real number of leads. Then count how many of those leads became paying customers and divide your spend by that number too: that’s what each new customer cost you. If it’s less than the profit a customer brings you, the ads are paying their way. The industry benchmarks above are context if you’re curious how you sit against your sector; they’re not the verdict.
- Scan Quality Score for troubleshooting clues. In the Keywords view, add the Quality Score column. Treat it as a diagnostic: for keywords sitting at 3 or 4, check which component (expected CTR, ad relevance, landing page experience) reads “below average” and fix that.
- Review Google’s recommendations with scepticism. Go to Recommendations. Read each one. Ignore the Optimisation Score number - it’s designed to get you to spend more. Only apply recommendations that make sense for your specific business.
If an agency runs the account, add one more check: Admin menu, then Access and security, and make sure you’re listed with Admin access.
If you get through this checklist and everything looks healthy, your ads are probably working fine, and anything you change from here is tuning rather than rescue.
If you find problems at multiple steps, it might be worth getting a professional audit. Most of the issues I find in SMB accounts can be fixed in a few hours. The hardest part is usually the first one - getting conversion tracking working properly. Everything after that is tuning.
Check which attribution model your reporting uses. If it’s last-click, you’re only crediting the very last click before a sale, and that can make Google Ads look worse than it actually is. If a customer saw your ad, clicked it, then came back three days later through Google organic and bought - last-click gives Google Ads zero credit.
If your numbers are off, here’s what to fix first
If you ran the audit and found problems, don’t try to fix everything at once: start with whichever number is doing the most damage to your break-even maths, fix that properly, and only then move on to the next one.
| What’s off | What to fix first |
|---|---|
| Tracking you can’t trust | Fix this before touching anything else. Re-run the self-test from number one on the scorecard; every other number is fiction until it passes. |
| Low conversion rate (below 2%) | The problem is usually the landing page or the offer. Make sure the page delivers exactly what the ad promised, loads fast on mobile, and has a clear call to action above the fold. If the copy on the page sounds like anyone could have written it, here’s how to fix that. Check your site speed and Core Web Vitals while you’re at it. |
| High cost per qualified lead (well above what your break-even allows) | This is usually a combination of the other issues on this list. Fix conversion rate and ad relevance first, and cost per lead will come down. |
| Low CTR (well below your industry’s average) | Your ads aren’t matching what people are searching for. Rewrite your ad copy to more closely match your keywords, or tighten your keyword targeting. Check that your ad groups aren’t mixing unrelated keywords together. |
| High CPC (well above your industry’s average) | Check your ad relevance and landing page experience components first - the ad quality Google calculates at auction time affects what you pay. Add negative keywords to stop paying for irrelevant clicks. If quality looks fine, you might just be in a competitive market, and the fix is improving your conversion rate instead. |
Full disclosure: I offer Google Ads audits as a service. The checks above work regardless of who does them - if you’re comfortable in the dashboard, you can absolutely do this yourself.
Frequently asked questions
How much should I be spending on Google Ads?
There’s no universal answer. It depends on your industry, your cost per lead, and how many leads you need. Start by working backwards: if a customer is worth $500 to you and your cost per lead is $70, you need about 7 leads to pay for one customer. Then set your budget from the customers you want each month: multiply that by the number of leads it takes you to win one customer, then by your cost per lead.
Are Google Ads worth it for small businesses?
For most service businesses, yes. If people search for what you do (plumber, dentist, accountant, web designer), Google Ads puts you in front of them at the exact moment they’re looking. The key is having conversion tracking set up and knowing your cost per lead. Without those, you’re guessing. If you’re also thinking about how AI search tools like ChatGPT and Perplexity affect your visibility, that’s called generative engine optimisation (GEO), and it’s part of the SEO work I do with clients.
What’s a good conversion rate for Google Ads?
The 2026 Google Ads average is 8.18% (WordStream), but it swings hugely by sector, so check your specific industry benchmark rather than the overall average. Below 2% usually points at your landing page or your offer. And a “good” rate is ultimately the one that makes your cost per qualified lead work against what a customer is worth to you.
If you’d like me to run through a Google Ads audit for your business, get in touch. You can read more about how I work or go straight to booking a call. I work with businesses across Melbourne and I’m always happy to have a look.
For more on how Google Ads connects to the rest of your search visibility: Core Web Vitals for small businesses, local SEO for Melbourne businesses, and GEO and AI search optimisation cover the same territory from different angles.
All benchmarks here were verified against their original sources in July 2026 (WordStream figures updated to the 2026 edition, with two sector figures corrected against it). Also updated July 2026: the scorecard was restructured. An earlier version treated Quality Score as one of the five headline numbers, and per Google’s own guidance it’s a diagnostic tool, so the article now treats it that way. Updated again in October 2026: added a section for owners whose ads are run by an agency, removed two figures that came from an agency roundup rather than a primary source, and restored the direct link to Google’s Economic Impact methodology. Industry benchmarks are typically updated annually - check the linked sources for the latest figures.