Better targeting cuts wasted Google Ads spend by making sure your ads reach people who can actually become customers: people in your service area, searching with intent to hire, and not already your customer or a job seeker. For a local business, that means getting three layers right: location settings, search intent (keywords and negatives) and audiences. Most waste in small accounts comes from the first two. Audiences then add fine-tuning, especially when used first in "observation" mode to learn who converts before you restrict anything.
TL;DR:
- Three layers: location, search intent and audience. Fix them in that order.
- Location settings cause hidden waste. The broad default can reach people interested in your area, not just people in it.
- Negative keywords remove the wrong searches, such as job seekers and DIYers.
- Use audiences in Observation mode first. Google says it lets you monitor criteria without restricting reach.
- Customer Match and exclusions let you re-engage past customers or keep new-customer offers away from existing ones, within privacy rules.
What Is Audience Targeting in Google Ads?
Keywords tell Google what people are searching for; audiences tell Google who they are or how they have behaved. Google's documentation describes audience segments as a way to reach specific groups of people, and notes that you can also exclude unrelated and therefore unprofitable segments.1
For a local service business, though, audiences are the last layer to tune, not the first. Most wasted spend in small accounts comes from showing ads in the wrong places or for the wrong searches. That is why this guide works through location and intent before audiences.
Layer 1: Are Your Location Settings Wasting Money?
Location is the most common source of hidden waste for local businesses. Google's broad location option, "Presence or interest", can reach people in your targeted locations and people who have shown interest in them.2 That suits a tourism business; it rarely suits a plumber who only works across a few suburbs.
- Switch to targeting people in, or regularly in, your area using Google's advanced location options.3
- Exclude areas you do not serve, especially suburbs just beyond your travel range.
- Match your radius to real travel time, not a wish.
- Check the locations report monthly to see where clicks and conversions actually came from.
If you cover several suburbs or regions, structure matters too; see How Should You Structure Google Ads When You Cover Multiple Service Areas?
Layer 2: Are You Paying for the Wrong Searches?
Not every search containing your keyword comes from a customer. Compare:
| Search | Intent | Worth paying for? |
|---|---|---|
| "emergency plumber near me" | Ready to hire | Yes |
| "how to fix a leaking tap" | DIY | Usually not |
| "plumber jobs Sydney" | Job seeker | No |
| "plumbing supplies" | Buying parts | Usually not |
Negative keywords stop your ads showing for the searches you do not want. Review your search terms report weekly at first, add negatives, and keep them in a shared list. Our guide to negative keywords for local service businesses has a full starter list.
Layer 3: How Should Local Businesses Use Audiences?
Google offers several audience types, including your own data (such as website visitors and customer lists) and groups based on interests or in-market behaviour. Exactly what is available depends on the campaign type and changes over time, so check the options inside your account.
Start With Observation, Not Targeting
For Search campaigns, add audiences in "Observation" mode first. Google explains that Observation lets you monitor and set custom bids for criteria without restricting your reach.4 You keep showing to everyone who searches your keywords, but you can see whether particular audiences convert better or worse, and adjust bids later. Switching straight to "Targeting" narrows who can see your ads, which can starve a small campaign of impressions.
Use Customer Match to Re-engage or Exclude Customers
Google's Customer Match lets you use your online and offline data, such as an email list, to reach and re-engage your customers across Search, the Shopping tab, Gmail, YouTube and Display.5 For a local business, useful applications include:
- Re-engaging past customers for repeat services such as annual servicing or maintenance
- Excluding existing customers from ads aimed only at new customers, such as a first-visit offer
Uploading customer data brings obligations. Google has its own requirements for advertisers using customer data, and Australian privacy law applies to the personal information you hold. Check what your customers agreed to when they gave you their details, and get advice if you are unsure.
Use Remarketing Carefully
Remarketing shows ads to people who have visited your website, such as someone who looked at your quote page but did not call. Keep these audiences small and frequency low so you stay helpful rather than annoying.
Use Exclusions to Stop Obvious Waste
Excluding audiences can save money. Common exclusions include existing customers from new-customer offers and people who have already booked. Google notes that excluding unrelated, unprofitable segments can help your ads reach the right people.1
What Other Settings Quietly Waste Money?
- Ad schedule. If nobody answers the phone at night, consider pausing ads outside business hours or pointing them to a call-back option.
- Devices. Most local service searches happen on phones. ACMA's 2026 research found 97% of Australian adults went online using a mobile phone in 2025.6 If your number is hard to tap or your page is slow on mobile, fix the page before adjusting bids.
- Match types. Google suggests broad match works well with Smart Bidding, but on small budgets phrase and exact match usually give you more control.
- Landing pages. Good targeting gets the right person to your page; the page then has to match their search, load quickly and show your phone number.
How Do You Measure Whether Targeting Is Working?
You cannot cut waste you cannot see. Track phone calls from ads, form leads and, where possible, booked jobs. Then review cost per enquiry broken down by location, device, hour of day and audience.
A simple monthly audit:
- Locations: any clicks from outside your area?
- Search terms: add new negatives.
- Audiences: do any observed groups convert much better or worse?
- Times and devices: any obvious dead spots?
- Landing pages: any page with clicks but no enquiries?
If you are spending steadily and still seeing no sales, our ads spending, no sales diagnostic walks through the usual causes.
Open your locations report and search terms report today. Exclude one area you do not serve and add ten negatives; it is the quickest win in most accounts. If you would like an expert review, OZ Media Digital's Google Ads management service audits accounts for Australian small businesses and shows exactly where spend is leaking. Book a free session and we will go through your targeting with you.
FAQ
What is audience targeting in Google Ads?
It lets you reach, observe or exclude groups of people based on who they are or how they have behaved, such as past website visitors or customer lists, on top of the keywords they search for.
What is the difference between Targeting and Observation in Google Ads?
Targeting restricts your ads to the chosen audience. Observation, which Google says lets you monitor and set custom bids without restricting reach, keeps your ads showing to everyone while you learn how each audience performs.
What is Customer Match?
Google's Customer Match lets you use your own online and offline data, such as an email list, to reach and re-engage your customers across Search, the Shopping tab, Gmail, YouTube and Display. Privacy rules apply to the data you upload.
Why are my Google Ads showing outside my service area?
Usually because of the broad "Presence or interest" setting, which can reach people interested in your area as well as people in it. Switch to targeting people in or regularly in your locations and exclude areas you do not serve.
Can I exclude existing customers from my Google Ads?
Yes, using a Customer Match list as an exclusion, provided you have the customer data and the right permissions. It is useful for offers meant only for new customers.
What causes the most wasted spend in small Google Ads accounts?
Most often broad location settings, missing negative keywords, broad match keywords on small budgets, and ads running when nobody can answer the phone.
