You opened your Google Ads account and saw your ad showing for searches like free, jobs or DIY. Now you are wondering how much of your budget went to people who were never going to buy from you. The fix is a small control called google ads negative keywords, and you can start using it today without help. It lets you tell Google which searches should never trigger your ad. The catch is that negatives are blunt, so the work is deciding which searches to block and which to leave alone. Below is a ten-minute routine to see the searches you paid for, the match types that decide what a negative actually blocks, and where Performance Max and AI Max fit in. You will also see when it makes sense to hand the job to someone else.
Key Takeaways
Go to Campaigns, Insights and reports, Search terms, set the last 30 days, sort by cost, and block only the terms that could never become a customer.
Negatives do not match synonyms, close variants or singular and plural forms, and terms added from the report default to exact match.
Free, jobs and DIY can describe a real customer for some businesses, so a short log of what you blocked and why lets you undo a wrong call.
You can see the searches you paid for in about ten minutes
Google Ads Help says negative keywords "let you exclude search terms from your campaigns." The place to find candidates is the Search terms report, which lists the searches that triggered your ads along with their performance. Open it like this:
- In Google Ads, open Campaigns, then Insights and reports, then Search terms. Google renames menus now and then, so if a label has moved, look for the Search terms report by name.
- Set the date range to the last 30 days.
- Sort by cost, so the searches that took the most money come first.
- Read down the list and mark each term that could never become your customer.
- Select those terms and choose Add as negative keyword.
Google lets you add the term to an ad group, a campaign, an existing negative keyword list or a new list. Pick the narrowest place that fixes the problem. A term that is wrong for one campaign may be a good search for another, so a campaign-level negative is usually safer than an account-wide one. Google's page on getting negative keyword ideas from the search terms report walks through the same steps.
Free, jobs and DIY are only wrong if they could never be your customer
A search term is not proof of waste just because it looks odd. Some businesses sell a free consultation, some recruit workers, and some sell DIY products. Block a word only when no version of your customer would type it.
Terms that often signal the wrong intent, such as jobs, salary, career, course, training, template, manual or how to, are worth checking against your own business before you add them. Do not add a word because of one unusual search. Do not block every search that got a click and no conversion either. Check how much you spent, whether your conversion tracking records your calls and forms, and whether leads from that search take time to close. A relevant search that has not converted yet needs a performance decision, not an automatic block. A relevant search that does convert may show you a keyword or landing page worth building on.
Match type decides what a negative actually blocks
Search campaigns support negative broad, phrase and exact match. Each one is stricter than the one before it, and none of them works like a human reader who understands meaning.
| Match type | Blocks a search when | Watch for |
|---|---|---|
| Negative broad | The search contains all your negative terms, in any order | Still allows synonyms and singular or plural forms |
| Negative phrase | The search contains your terms in the same order, with extra words allowed | A different word order gets through |
| Negative exact | The search is exactly your terms, in the same order, with no extra words | Blocks the narrowest set of searches |
Google's own example shows the gap. A negative broad match on flowers blocks "red flowers" but may allow "red flower." Negatives account for capitalization and misspellings, but they do not match close variants, synonyms or singular and plural alternatives, so add the variants that matter to you as separate negatives. When you add a term from the Search terms report to a Search campaign, Google defaults it to negative exact match unless you change the match type. That default is the cautious one, and it will not catch other searches built on the same word.
Google also cautions that negatives work differently from positive keywords and should be used sparingly, because a negative can block traffic that was performing. Its page on fixing issues with negative keywords covers the problems that come up most.
A negative keyword list does nothing until you apply it to a campaign
If you block the same terms in several campaigns, a negative keyword list saves you from typing them again. Google's guide to negative keyword lists explains the setup. The part people miss is that a list is not active just because it exists: you have to apply it to each campaign you want it to cover. If a term you blocked keeps showing up in the report, check that the list is attached to the campaign first.
Account-level negatives work differently. They apply across the relevant Search and Shopping inventory in the account, which includes Performance Max, and they have their own scope and limit. Google publishes the numbers on its account limits page:
| Where the negatives live | Limit |
|---|---|
| Account level | 1,000 negative keywords |
| Single campaign | 10,000 negative keywords |
| Single negative keyword list | 5,000 keywords |
| Lists in one account | 20 negative keyword lists |
Those limits are far above what a small account needs. A short, deliberate list you understand beats a long one you cannot explain.
Performance Max and AI Max respect your negatives
If you run automated campaigns, you can still block searches. For Performance Max, Google supports campaign-level negative keywords for Search and Shopping inventory. The path is Campaigns, Audiences, keywords, and content, Search keywords, Negative search keywords. Google's page on negative keywords in Performance Max describes them as restrictive and recommends them for brand-safety needs or completely irrelevant terms, not for everyday tuning.
For AI Max, Google's AI Max FAQ says, "Negative keywords will be respected even with AI Max turned on." So the routine above still works: review the search terms, block what could never be a customer, and leave the rest for the campaign to learn from.
Keep one limit in mind. The Search terms report does not show every query. Google leaves out terms that did not have enough search activity, under its privacy standards, so some spend will never appear as a named search.
A weekly or rolling 30-day review keeps the list current
New wrong searches appear as people change how they type, and as you change your keywords, ads, landing pages and budget. A review routine keeps up with that. A practical suggestion for a small account:
- Check weekly while the campaign is new, after you change keywords, targeting, landing pages or budget, or when spending is steady enough to produce regular searches.
- Check on a rolling 30-day basis if the account is small and slow-moving, and look sooner after any major change.
- Check more often when you use broad matching or see obvious irrelevant searches.
That cadence is a working habit, not a Google rule, and no review promises a particular saving. What does help is a short log with the date, the term, the match type, where you added it and why. If a blocked term turns out to matter, the log lets you find it and take it off.
A basic review is yours to do, and help pays off when the account is complicated
Nothing about this routine is hidden. You can open the report, sort by cost and add negatives yourself, and for a single campaign with modest spend that may be all you need.
Paid help earns its fee on harder accounts: several campaigns with overlapping services, steady spend, broad or automated matching, Performance Max or AI Max, or conversion tracking you do not trust. There the work is judgment: telling real irrelevance from an edge case, choosing the match type and scope, checking that lists are attached, and watching what each change does to leads. A manager worth hiring should show you the actual terms, explain each block and keep a record of changes. If someone sells routine negative-keyword entry as a guaranteed way to cut your bill, ask for the terms they plan to block and why.
What This Means for You
Google Ads negative keywords are a simple control with real edges. The Search terms report shows what you paid for, sorted by cost lets you start with the searches that mattered most, and Add as negative keyword puts a block in place at the level you choose. The match type decides how much gets blocked, and Google's default from the report is the narrow, exact one.
Block only what could never become a customer, apply lists to the campaigns that need them, and keep a short log so you can reverse a call. Review weekly while the campaign is new or changing, and every 30 days when it is steady. The routine will not remove every wrong search, and it does not need to. It keeps your spend pointed at people who might call.
If you want a second set of eyes on your search terms, Web Leveling can review the report with you and explain each block. Our Google Ads management covers the ongoing review, the lists and the conversion tracking behind them. If a ten-minute review is all your account needs, we will tell you. We work with small and medium businesses across the country and overseas. Send us a note about your Google Ads account, and we will look at what your searches are showing.
Can you block the right searches?
Pick an answer to begin.
1. Where do you find the searches that triggered your ads?
2. You add a negative broad match for flowers. Which searches might still get through?
3. You add a term from the Search terms report to a Search campaign and change nothing. What match type does Google use?
Frequently Asked Questions About google ads negative keywords
What is a negative keyword in Google Ads?
A negative keyword stops your ad from showing when a search matches the excluded term under its negative match rules. Google says negative keywords let you exclude search terms from your campaigns.
Where do I find the Search terms report?
Open Campaigns, then Insights and reports, then Search terms. Google changes menu names from time to time, so look for the Search terms report by name if the path has moved.
Do negative keywords block synonyms or plurals?
No. Google says negative keywords do not match close variants, synonyms or singular and plural forms, so add the variants that matter to you as separate negatives.
Do negative keywords work in Performance Max and AI Max?
Yes. Performance Max supports campaign-level and account-level negatives for Search and Shopping inventory, and Google says negative keywords are respected when AI Max is turned on.
How often should I check my search terms?
Weekly while a campaign is new or has just changed, and about every 30 days for a small, steady account. That is a practical routine, not a rule you have to follow.
Should I block every search that got a click but no sale?
No. Check the spend, whether your tracking records calls and forms, and whether the search is relevant to what you sell. Block a term when it could never become a customer.
Terms
Google Ads words in this post
Tap a term to see what it means.
Search term. The actual words a person typed into Google before your ad showed.
Keyword. A word or phrase you choose to tell Google which searches your ad may show for.
Negative keyword. A word or phrase that keeps your ad from showing when a search matches it.
Match type. The rule that sets how closely a search must match a keyword, broad, phrase or exact.
Negative keyword list. A saved set of negative keywords you apply to one or more campaigns.
Performance Max. A Google Ads campaign type that runs across Google's Search, Shopping and other inventory.
AI Max. A Google Ads setting for Search campaigns that widens how searches are matched to your ads.
