Guide

How to Set Up Google Ads Without Wasting Budget on Irrelevant Clicks

TAThe AdPilot Team· Google Ads automation24 August 20268 min read
Almost all of it is one problem: you are paying for searches that were never going to buy. Write negative keywords into the campaign before it launches, start narrower on match types than feels comfortable, and read the search terms report every week. The first of those three is free and most people skip it. WordStream found accounts with at least one negative keyword convert at 13%, against 4.6% for accounts with none.

Where the money actually goes

Wasted spend sounds like a subtle problem. Bids a little too high, a slightly wrong audience. It is usually much blunter than that. You are paying for clicks from people who were never going to become customers, and you can often see it at a glance.

Say you are a plumber. You bid on plumbing terms. Google, doing exactly what it was asked, shows your ad to someone searching for plumber salaries, someone looking for a plumbing course, and someone looking for free advice on fixing a tap themselves. All three might click. All three cost you money. None of them was ever going to book a job.

Five example searches reach a plumbing campaign. Emergency plumber near me and burst pipe repair cost pass through and become paid clicks. Plumber salary, plumbing courses and free plumbing advice are stopped by negative keywords before any money is spent.WHAT PEOPLE ACTUALLY TYPENEGATIVESYOUR BUDGETemergency plumber near mepaid clickplumber salaryblocked, costs nothingburst pipe repair costpaid clickplumbing coursesblocked, costs nothingfree plumbing adviceblocked, costs nothing
A negative keyword stops the search before the click, so it costs nothing rather than costing a click.

A negative keyword is the mechanism for that. Google's wording is plain: they let you exclude search terms from your campaigns. The word "exclude" is doing the work. The ad never shows, so there is no impression, no click and no cost.

Almost nobody does this

WordStream analyzed 251,236 Google Ads Grader reports from 15,666 accounts between January and November 2025.

A grid of forty squares representing Google Ads accounts. Ten of them, one quarter, are highlighted to show the share of businesses that have never added a single negative keyword. Source: WordStream, 251,236 Google Ads Grader reports.Businesses that have never added one negative keyword25%have none at allNot a short list. Not a stale list. None.WordStream, 251,236 Google Ads Grader reports from 15,666 accounts, Jan to Nov 2025
One in four accounts has never excluded a single search term.

A quarter of businesses have never added one. Not a thin list, not a stale list: none at all. Those accounts convert at 4.6% a month. Accounts with at least one negative keyword convert at 13%.

I want to be careful about what that comparison proves. Accounts with negatives are probably better run in other ways too, so the gap is not purely the negatives. But the direction is not ambiguous, and the effort involved is fifteen minutes.

The four patterns worth excluding on day one

These come up in nearly every account, whatever the industry, and none of them needs performance data to predict.

Jobs and salaries. People researching what your industry pays. High volume, zero commercial intent, and they will click.

Training and courses. People who want to learn to do it rather than pay someone.

Free, cheap, DIY.Explicit signals that the searcher is not buying. If someone types "free" in front of your service, they have told you their budget.

Competitor names, sometimes.This one is a judgment call rather than an automatic exclusion. Bidding on a competitor's name can work. Doing it accidentally, without having decided to, usually does not.

Tip
You can write all four of those before you have spent a cent, because they do not depend on your data. They depend on your industry, and you already know your industry.

Match types decide how much reaches you

Google names three. Exact match shows on searches with the same meaning or intent as your keyword and gives you the most steering. Phrase match shows on searches that include the meaning of your keyword. Broad match, in Google's own words, may show on searches that do not contain the direct meaning of your keywords at all.

Broad match is not a trap. It is a reach setting. It works well on a mature account with a well-built negative list, because the list catches what broad match drags in. On a new account with no negatives, broad match is an open tap.

Start narrower than feels comfortable. It is much easier to widen a campaign that is under-spending than to explain a month of spend on searches you never wanted.

Then the weekly habit

No amount of preparation catches everything, because people type things nobody predicts. The search terms report shows what actually triggered your ads, which is a different list from the keywords you chose.

Sort by cost, look for anything that spent and could not have converted, add it as a negative. Fifteen minutes a week. The full routine, including the monthly and quarterly items, is in the Google Ads audit checklist.

Why this reaches further than the wasted clicks

Google builds Quality Score from three things: expected click-through rate, how closely your ad matches the intent behind the search, and how useful your landing page is to the person who clicked.

Showing ads to people who were never going to click drags the first of those down. So irrelevant impressions do not just cost you the clicks you paid for, they make the clicks you do want more expensive. Excluding the wrong searches leaves a cleaner record behind, and that record is what Google prices you on.

Building it in rather than bolting it on

Everything above is doable by hand. The reason it usually is not done is ordering: negative keywords are the least interesting part of setting up a campaign, they arrive at the end of a long afternoon, and nothing breaks if you skip them. The bill arrives later and does not say what it was for.

AdPilot writes them at build time. It reads your website, works out what you sell, and produces the campaign with negative keywords alongside the ad copy, keywords, budgets and extensions. Campaigns land in your Google Ads account paused, so you can read the negative list and change it before anything spends.

Once campaigns are running, the Optimize page reads your live account and surfaces the search terms that are costing money without converting, so the weekly habit has somewhere to start. It recommends rather than editing your account on its own.

  • Negative keywords generated with the campaign, not after the spend
  • Campaigns arrive paused so you read the list before it costs anything
  • Wasted search terms surfaced from your live account data
  • Match types set per ad group rather than left on the default
Tip
See also AdPilot vs Optmyzr on the difference between building a campaign properly and repairing one afterwards, and pricing for what each plan includes.

Questions people actually ask

How do I create campaigns with negative keywords already built in?
Google Ads will not write them for you. A new campaign starts with an empty negative list. You either write them from knowledge of your market, inherit them from a shared list you built earlier, or use a tool that produces them as part of building the campaign. AdPilot does the third.
What are the most commonly wasted searches?
Four patterns cover most of it: salaries and jobs, training and courses, anything with free or cheap or DIY attached, and competitor names you did not deliberately choose to bid on.
Should I avoid broad match entirely?
No, but be honest about what it needs. Broad match works on an account with a well-built negative list to catch what it drags in. On a new account with no negatives it is an open tap. Start narrow and widen once you can see what is arriving.
Do negative keywords affect Quality Score?
Not directly, but they affect its inputs. Showing ads to people who were never going to click depresses expected click-through rate, which is one of the three things Google prices on. Excluding those searches leaves a cleaner record behind.
How many negative keywords should a campaign have?
There is no target number and chasing one is a mistake. A campaign needs enough to exclude the traffic that could never convert, which for most small businesses is a couple of dozen at launch and grows slowly as the search terms report reveals what you missed.
Citations (5)show
  1. 1Our Biggest Google Ads Performance Study Yet: What We FoundWordStream
  2. 2About negative keywordsGoogle Ads Help
  3. 3About the search terms reportGoogle Ads Help
  4. 4About keyword matching optionsGoogle Ads Help
  5. 5About Quality Score for Search campaignsGoogle Ads Help

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