Where Is Your Google Ads Budget Going? A Guide to Negative Keywords and Budget Optimization

I have been reviewing accounts across different sectors for years: restaurants, clinics, tour operators, car service shops. The sector changes, but the shape of the waste is surprisingly consistent. Almost every account without regular maintenance has at least a few of the patterns below.

What these patterns have in common is this: they all look related to your keyword, yet none of them has a paying customer behind it. The ad system will not make that distinction for you; reading intent is still a human job.

• Searches containing "free": they look like they are after your service, but there is no intent to pay from the start.
• Job seekers: terms with add-ons like "hiring", "job openings" or "how much do they pay".
• "How to" searches: someone who wants to solve it themselves is not someone who wants to buy the service.
• Training and career searches: career-minded terms like "course", "how to become" or "certification".
• Searches naming a city or region you do not serve: they click, they look, they cannot reach you.
• Definition and curiosity searches: people researching the topic who are not yet at the buying stage.

To get to the report, go to Campaigns in the left-hand menu of Google Ads, open Insights and reports, then Search terms. Menu names change with Google's interface updates; typing "search terms" into the search box in the interface takes you to the same place in every version.

Two caveats before you start. First, Google hides some searches from the report for privacy reasons; even so, the visible terms cover a significant share of spend, and working with what is visible already cleans up a lot. Second, do not look at the cost column alone; add the conversions column too. Terms that look innocent but spend heavily without a single conversion are the sneakiest items in the report.

Once you are on the screen, follow this order:

• Set the date range to the last 30 days; looking at a single day is misleading.
• Sort the table by cost so the biggest spender sits at the top.
• Ask two questions of every term: "Could the person typing this be my customer?" and "Would I want my money spent on this search?"
• Flag the terms where the answer is no and add them as negative keywords.
• As you add them, decide: is the problem a single search, or every search containing a certain word? That determines the match type you choose.

A negative keyword is the filter in Google Ads that decides which searches your ad will not appear on, and it works with three match types. A broad match negative blocks when all parts of the keyword appear in the search, in any order. A phrase match negative blocks when the word group appears in the search in exactly that order. An exact match negative blocks only when the search is exactly that phrase. One important detail: negative keywords do not automatically expand to close variants the way regular keywords do. If you need plurals and similar forms, you have to add them separately.

Choosing the level matters as much as the match type. A negative keyword can be added to an ad group, a campaign or a shared list. My setup is this: patterns that are waste in every campaign, such as "free", job-listing terms and training searches, live in a shared negative keyword list attached to all campaigns. Campaign-specific problems stay in their own campaign. That way, when a new campaign launches, the baseline protection is already in place.

One warning: do not get carried away. A broad match negative can cut real customer searches without you noticing. For terms you are unsure about, use exact or phrase match; block the problematic phrase rather than banning the whole word.

Doing one big cleanup and closing the list is like weeding a garden once and never looking at it again. Searches are alive: every week people search with phrases you have never seen, Google's broad match system keeps testing new variants, and search language shifts with the seasons. Summer searches are not the same as winter searches; even a news story can change the traffic around your keyword overnight.

That is why negative keywords are not a setting you configure once at setup; they are ongoing maintenance. In my client accounts it works like this: an AI-powered system I built myself scans search terms continuously and flags suspicious spend; I decide, as someone who knows the business, which terms actually get blocked. AI is the eye that never tires; the decision belongs to human judgment.

The practical takeaway for you: put a fixed weekly check in your calendar. Short but regular maintenance beats a big monthly cleanup, because waste keeps spending on the days you are not looking.

Negative keywords filter the intent of a search; location targeting filters whether the searcher can actually reach you. Without both working together, the budget does not flow efficiently. The first place to look is the location option that sits untouched in most accounts: Google's default shows ads to people in your target area and also to people showing interest in that area. If you run a restaurant or a service business, switching this to people located in the area only cuts most of the clicks from far outside your service area.

The second step is refining the target. City- or province-level targeting is too coarse for most local businesses; you can target by district, neighborhood or a radius around the business. Exclusions matter as much as targeting: explicitly leave out neighboring areas you do not serve but that generate clicks because they border your target. Then check the location report regularly to see where clicks actually come from; your intention on the map and the reality in the report do not always match.

Değirmen Restaurant in Kuşadası is a real example of this approach. There was one goal: the phone ringing for reservations. Ads focused on the areas customers could realistically come from, search terms were scanned regularly and intent-less searches were weeded out, and call conversion tracking made visible which campaign was making the phone ring. The setup is not complicated; it is disciplined.

Let me boil everything so far down to a single routine. Nothing on the list below is technically difficult. The hard part is not skipping it in a busy week when the phone keeps ringing. Waste builds up precisely in the skipped weeks; in most accounts the problem is not lack of knowledge but lack of consistency.

Every week, on the same day, work through it in this order:

• Open the search terms report and sort the last 7 days by cost.
• Add intent-less terms to the negative list with the right match type; gather common patterns in the shared list.
• Check the location report: if clicks are leaking in from outside your service area, add exclusions.
• Confirm that conversion tracking is working; are phone and form conversions coming through?
• Check that the budget is concentrated on campaigns that bring conversions; question any campaign that looks good but brings no business.