At FirstPage Marketing, we spend a lot of time looking at what paid search campaigns are actually spending money on, not just what theyโre supposed to be targeting. One of the most consistent findings across accounts: negative keywords reduce wasted ad spend more reliably than almost any other single optimization. If your campaigns are eating through budget without producing results, this is usually where to start.
Find out if you should be using Google Performance Max campaigns.
What’s Actually Happening When Budget Disappears
Google Ads doesnโt just show your ads to people who typed exactly what youโre targeting. Depending on your match types, your ads can appear for searches that are loosely related, sometimes very loosely. A residential plumber bidding on โemergency plumberโ might also show up for โemergency plumber jobs,โ โemergency plumber salary,โ or โhow to become an emergency plumber.โ Every one of those clicks costs the same as a genuine service inquiry. None of them convert.
This isn’t a Google glitch. It’s how the system is designed to work. The responsibility for filtering out irrelevant traffic falls on you, through negative keywords.
The Opportunity Cost That’s Easy to Overlook
Most advertisers think about wasted spend as a direct loss: irrelevant clicks cost money. That’s true, but it’s only half the picture.
The more damaging problem is what happens to the budget after those clicks. Google Ads campaigns typically run on a daily budget. Once that budget is exhausted, your ads stop showing for everyone, including the qualified buyers you actually want. So if job seekers and competitors burn through your morning budget, the contractor who genuinely needs your service at 2pm never sees your ad at all.
You can look at a campaign, see that it generated clicks and spent its daily budget, and think things are working. But if those early clicks were irrelevant, your ad wasn’t in the market when it mattered.
Learn how to create a successful retargeting campaign.
How Negative Keyword Match Types Actually Work
Negative keywords use the same match type structure as regular keywords (broad, phrase, and exact), but the logic works more restrictively.
Negative broad match blocks searches that contain all of your negative keyword terms, but wonโt block a search that only contains some of them. Adding โrunning shoesโ as a negative broad match would prevent โbest running shoesโ but not โshoes for running.โ
Negative phrase match blocks any search that includes the exact phrase in that order. Itโs the most commonly useful match type for negatives, catching close variations without being so narrow that it misses things.
Negative exact match only blocks searches that match the term precisely.
This is where accounts often run into trouble. An advertiser adds a negative keyword expecting it to cover a wide range of irrelevant searches, but theyโve used exact match, so it only blocks one very specific query while dozens of similar searches still get through.
Find out how you can use PPC advertising to get immediate results.
Finding the Searches That Are Wasting Your Budget
The Search Terms Report in Google Ads shows the actual queries that triggered your ads. It’s the most valuable report in the platform for this purpose, and it’s consistently underused.
When reviewing a client’s account, these are the patterns we’re looking for:
- Queries with โjobs,โ โcareers,โ โhiring,โ or โsalaryโ indicating job seekers
- Queries with โfree,โ โDIY,โ โhow to,โ โtutorial,โ โcourse,โ or โtemplateโ signalling people who arenโt looking to pay for a service
- Competitor names or โalternativesโ searches, where comparison shoppers are unlikely to convert
- Informational queries that signal research mode rather than buying intent
The distinction in search intent matters. Someone searching โhow to unclog a drainโ is in a completely different headspace than someone searching โdrain cleaning service near me.โ Both searches can plausibly trigger a plumbing ad, but only one of them is a prospective customer.
Building a Negative Keyword List That Actually Works
Starting a negative keyword list doesnโt require waiting for your own campaign data. Most accounts benefit from a core set of universal negatives from day one: job and employment terms (jobs, careers, hiring, salary, internship), free resource terms (free, DIY, how to, tutorial, course, training), and competitor-focused terms like โalternativesโ or โvsโ depending on your strategy. That foundation covers a large portion of irrelevant traffic before your first dollar is spent.
From there, the Search Terms Report builds out your list based on what your specific campaign is actually attracting. New campaigns need more frequent review, weekly at a minimum, because the system is still learning which searches to match against your keywords. Established campaigns can be reviewed less often, but they still need regular attention.
One detail thatโs easy to miss: negative keywords can be applied at the campaign level or shared across an entire account. A service business with separate campaigns for residential and commercial clients might add โcommercialโ as a negative only on the residential campaign, not account-wide.
Negative Keyword Lists Need Ongoing Maintenance
This isnโt a one-time task. Search behaviour shifts, new irrelevant query patterns emerge, and your own offerings change over time. If you add a free consultation, youโll want to revisit any negatives that block โfreeโ queries. Treating negative keyword lists as a living part of your account, rather than a completed checklist, is what separates well-managed campaigns from ones that gradually degrade.
Negative keywords are one of the highest-impact levers in paid search, and theyโre almost always worth auditing before raising a budget or restructuring campaigns. If you want to talk through where your current campaigns might be losing ground, reach out to our team at 604-866-2230. We can usually identify the problem faster than youโd expect.
