Negative Keywords in Google Ads: The Complete Guide to Stopping Wasted Spend
- Gerald D'Onofrio
- Apr 21, 2025
- 20 min read
Updated: Apr 6
Every Google Ads account is leaking money. Most advertisers know it. Few know exactly where it is going or how to stop it.
Negative keywords are how you stop it. They are the words and phrases you tell Google not to show your ads for, the filter between your budget and the searches that will never convert. Without them, Google's broad matching will spend your money on traffic that has nothing to do with your business, and your reports will show clicks, costs, and almost no results to show for it.
This guide covers everything you need to know to use negative keywords effectively in Google Ads: what they are, how the match types work, how to find the right ones for your account, how to add them, and the mistakes that cause even experienced advertisers to leave significant budget on the table.
If you are already running Google Ads and your cost per conversion is higher than it should be, negative keywords are almost always part of the answer.
What Negative Keywords Are and Why They Matter
When you add a keyword to a Google Ads campaign, you are telling Google to show your ad when someone searches for that term. When you add a negative keyword, you are telling Google the opposite: do not show my ad when someone searches for this.
The reason this matters comes down to how Google's matching works. Even with phrase match and exact match keywords, Google will show your ads for searches it considers relevant based on its own interpretation of intent. That interpretation is not always accurate. A plumber targeting "drain cleaning services" might get shown for "drain cleaning services DIY." A software company targeting "project management tool" might appear for "free project management tool." A luxury retailer targeting "leather handbags" might show up for "cheap leather handbags."
Every one of those clicks costs money. None of them are likely to convert.
Negative keywords close those gaps. They give you control over who sees your ads rather than leaving that decision entirely to Google's algorithm. The result is that your budget concentrates on the searches most likely to turn into customers, your click-through rate improves because your ads are more relevant to the people seeing them, and your conversion rate goes up because the traffic landing on your site actually matches your offer.
For any established business running Google Ads, negative keyword management is not optional. It is one of the highest-return activities in the entire account.
Understanding Negative Keyword Match Types
Match types are where most advertisers get confused and either over-block good traffic or under-block bad traffic. The concept is straightforward once you see it in plain terms.
There are three match types for negative keywords and each one draws a different sized net.
Negative Broad Match
This is the default match type when you add a negative keyword without any special formatting. Negative broad match blocks your ad when a search contains all of the words in your negative keyword, in any order.
If you add "free consultation" as a negative broad match keyword, your ad will not show for:
"free legal consultation"
"consultation free of charge"
"where to get a free consultation"
But it would still show for "free advice" or "consultation services" because those searches do not contain both words together.
Negative broad match casts a wide net but is less precise. Use it when you want to block a general concept across many possible variations.
Negative Phrase Match
Negative phrase match blocks your ad when a search contains your exact keyword phrase in the same order, with or without additional words around it.
To use negative phrase match, wrap the keyword in quotation marks: "free consultation"
Your ad would not show for:
"free consultation for lawyers"
"get a free consultation today"
"free consultation near me"
But it would still show for "consultation free" because the word order is different.
Negative phrase match is the most practical choice for most negative keywords because it blocks the specific phrase you are concerned about without being so broad that it accidentally cuts off relevant traffic.
Negative Exact Match
Negative exact match only blocks your ad when someone searches for your keyword phrase exactly, with no additional words before or after it.
To use negative exact match, wrap the keyword in brackets: [free consultation]
Your ad would not show for the search "free consultation" but would still show for "free consultation for small businesses" or "get a free consultation."
Use negative exact match sparingly, typically for very specific searches you want to block precisely without affecting related queries. It is the most surgical option but also the easiest to underuse.
Which match type should you use?
For most negative keywords, start with negative phrase match. It gives you meaningful protection without being too aggressive. Reserve negative broad match for concepts you want to block entirely across all variations, like "free" or "DIY" if you are a service business. Use negative exact match for persistent problem searches that keep coming through despite other exclusions.
A practical starting framework for a new account is to build your negative list primarily in phrase match, then review after 30 days and convert any repeat offenders to exact match if the phrase match is catching too much collateral traffic.
How to Find Negative Keywords for Your Google Ads Account
Negative keywords are not something you guess at and hope for the best. The best lists come from actual data showing you what real people searched before clicking your ad. Here are the four most reliable sources.
The Search Terms Report
This is your most valuable tool and the one most advertisers underuse. The Search Terms Report in Google Ads shows you the exact queries that triggered your ads and resulted in a click. Not the keywords you are bidding on, but the actual words someone typed into Google before your ad appeared.
To find it: go to your Google Ads account, click on a campaign, then select Keywords from the left menu, and click Search Terms at the top.
What you are looking for:
Searches that are clearly irrelevant to your business. If you are a B2B software company and someone searched "free student project management tool" before clicking your ad, that is a negative keyword opportunity across at least three terms: "free," "student," and potentially "free student."
Searches with high click volume and zero conversions. Sort the report by clicks and look for queries that have spent meaningful budget without producing a single conversion. These are costing you money with no return.
Searches that reveal intent mismatches. Someone searching "how to do my own Google Ads" before clicking a Google Ads management agency ad is not going to hire you. "DIY," "how to do it yourself," "tutorial," and "free course" are all signals of someone who wants to learn, not buy.
Review this report at minimum once a month. In a new account or a recently restructured campaign, check it weekly for the first 60 days.
Competitor and Industry Research
Before your account has enough data to generate a meaningful search terms report, you can build a starter negative keyword list using common sense and industry knowledge.
Think through the categories of searches that sound related to your business but represent audiences that will never convert:
People looking for free versions of what you sell. If you charge for a service or product, "free," "no cost," "open source," and "at no charge" belong on your negative list from day one.
People in research mode who are not buyers yet. "What is," "how does," "definition of," and "explained" signal informational intent. These searchers are learning, not buying. For a service business running conversion-focused campaigns, these searches waste budget.
People looking for jobs rather than services. If your business name or industry terms overlap with job titles, "jobs," "careers," "salary," "hiring," and "how to become" can drive significant irrelevant traffic.
Students and academics. "Essay," "thesis," "research paper," "case study for school," and "assignment" show up in almost every industry and almost never convert.
Your Own Customer Service and Sales Data
This source is overlooked by almost every advertiser but it is one of the most accurate signals available. Look at your intake forms, sales call notes, and any conversations where a prospect turned out to be a bad fit.
If you regularly get inquiries from people who think you offer something you do not, the language they use to describe what they thought you did is almost certainly triggering your ads. Those words and phrases belong on your negative list.
Similarly, if your sales team regularly disqualifies leads because they are too small, too early stage, or in the wrong industry, the language those leads use to find you reveals search terms worth excluding.
Google's Own Suggestions
Type your primary keywords into Google search and pay attention to the autocomplete suggestions and the "People also search for" section at the bottom of results. These suggestions reveal what people commonly search for alongside your keywords. Many of those related searches will be irrelevant to your business and worth adding to your negative list.
Do the same in the Google Ads Keyword Planner. Search for your target keywords and look through the suggested related terms. Any that are clearly off-target are candidates for your negative list before you have even launched.
A Starter Negative Keyword List for Most Google Ads Accounts
Regardless of your industry, most accounts benefit from blocking these terms from the start:
Free, cheap, discount, coupon, promo code, DIY, how to do it yourself, tutorial, course, training, certification, jobs, careers, hiring, salary, resume, internship, what is, definition, wikipedia, reddit, youtube, download, torrent, cracked, template, example, sample, student, school, university, homework, essay.
This is not exhaustive and should be treated as a starting point, not a complete solution. Your specific industry and offer will require additions that no generic list can anticipate.
How to Add Negative Keywords in Google Ads
Knowing which keywords to exclude is half the battle. Here is exactly how to add them inside Google Ads, at every level where they can be applied.
The three levels where negative keywords can be added
Before touching anything in the interface, understand where negative keywords live in your account structure because where you add them determines how broadly they apply.
Account level blocks a keyword across every campaign in your account simultaneously. This is done through a shared negative keyword list applied account-wide. Use this level for terms that are universally irrelevant to your business regardless of campaign, things like "free," "jobs," or "DIY" if you are a service business.
Campaign level blocks a keyword only within a specific campaign. Use this when a term is irrelevant for one campaign but might be relevant for another. A company running separate campaigns for two different products might exclude a competitor name in one campaign but not the other.
Ad group level is the most granular option. It blocks a keyword only within a specific ad group inside a campaign. Use this for terms that are relevant in one context but not another within the same campaign.
Most advertisers should start at the campaign level for the majority of their negatives and use account-level shared lists for universal exclusions.
How to add negative keywords directly to a campaign or ad group
Sign in to your Google Ads account and select the campaign you want to work with.
In the left navigation menu, click Keywords.
At the top of the page, click the Negative keywords tab.
Click the blue plus button to add new keywords.
Choose whether to add them at the campaign level or ad group level from the dropdown.
Type or paste your negative keywords, one per line.
Make sure to format them correctly: no formatting for broad match, quotation marks for phrase match, and brackets for exact match.
Click Save.
That is all it takes to add negatives directly. The keywords take effect almost immediately.
How to create and use negative keyword lists
Negative keyword lists are a more powerful and efficient approach than adding keywords campaign by campaign. A list is a reusable collection of negative keywords that you can apply to multiple campaigns at once. When you update the list, every campaign it is attached to gets updated automatically.
This matters for agencies and multi-campaign accounts where maintaining consistent exclusions manually across dozens of campaigns is time-consuming and error-prone.
To create a negative keyword list:
Click the Tools icon in the top right of your Google Ads account.
Under Shared Library, click Negative keyword lists.
Click the blue plus button to create a new list.
Give the list a descriptive name, for example "Universal Exclusions" or "Competitor Brand Blocks."
Add your negative keywords to the list, one per line with the correct match type formatting.
Click Save.
To apply the list to a campaign:
Go back to Negative keyword lists in the Shared Library.
Check the box next to the list you want to apply.
Click Apply to campaigns.
Select the campaigns you want to apply it to and confirm.
A well-organized account typically has two to three shared lists running at all times: one for universal exclusions that apply to every campaign, one for brand protection terms, and one for any industry-specific irrelevant terms that appear across multiple campaigns.
How to add negative keywords from the Search Terms Report
This is the most efficient workflow for ongoing negative keyword management and the one we recommend building into a monthly routine.
Navigate to Keywords and then Search Terms in your campaign.
Review the list and check the box next to any search term you want to exclude.
Click Add as negative keyword at the top of the table.
Choose whether to add it at the campaign or ad group level.
Select the match type you want to apply.
Click Save.
Adding negatives directly from the Search Terms Report means you are working from real data rather than assumptions, and the process takes minutes once you know what you are looking for.
How to Manage Negative Keyword Lists Effectively
Adding negative keywords is the easy part. Managing them over time so they stay accurate, do not over-block good traffic, and scale cleanly as your account grows is where most advertisers fall short. Here is how to do it right.
Build lists around themes, not random additions
The worst negative keyword lists are ones that grow organically over time with no structure, a random collection of terms added whenever someone noticed a bad search term. These lists become impossible to audit and easy to over-apply.
Build your lists around clear themes instead:
Universal exclusions are terms that are irrelevant to your business regardless of campaign or product. This list applies account-wide and includes things like job-seeking terms, free-seeking terms, and student-related searches. Once built, this list rarely needs significant changes.
Competitor exclusions contain the brand names and product names of your direct competitors. Whether you want to exclude competitors or target them is a strategic decision, but having a dedicated list keeps those terms organized and easy to update when new competitors emerge.
Intent exclusions target informational and research queries that indicate someone is learning rather than buying. Terms like "what is," "how does," "tutorial," "definition," and "explained" belong here. This list is particularly important for service businesses where the gap between someone researching a topic and someone ready to hire is significant.
Product or service exclusions are specific to your offer. If you only sell to businesses, "for personal use," "for home," and "residential" belong here. If you only work with established companies, "startup," "new business," and "just launched" are worth considering.
Apply lists at the right level
A mistake many advertisers make is applying every negative list to every campaign. That feels thorough but it can block valid traffic in campaigns where a term is actually relevant.
Before applying a list to a campaign, ask whether every term on the list is genuinely irrelevant in the context of that specific campaign. A competitor exclusion list that makes sense for a branded campaign may not be appropriate for a general awareness campaign where appearing alongside competitors is actually valuable.
The safest approach is to apply universal exclusions account-wide, apply competitor and intent exclusion lists at the campaign level by default, and review each list against each campaign before applying rather than bulk-applying everything everywhere.
Review and audit on a schedule
Negative keyword lists are not a set-and-forget tool. Search behavior evolves, your products and services change, and terms that were irrelevant six months ago may now be relevant, or vice versa.
A practical audit schedule looks like this:
Monthly: Pull the Search Terms Report and add any new irrelevant queries to the appropriate list. This takes 20 to 30 minutes and is the single highest-return maintenance task in any Google Ads account.
Quarterly: Review your existing negative keyword lists in full. Look for terms that may no longer be appropriate, check for any over-blocking by reviewing whether any important keywords are accidentally being suppressed, and remove outdated terms.
When launching a new campaign: Always review your negative lists before applying them to a new campaign. What was built for one campaign may not be appropriate for another, and applying lists without review is how valid traffic gets accidentally blocked.
Check for conflicts between negative keywords and target keywords
This is one of the most damaging and least visible mistakes in Google Ads. A negative keyword that accidentally matches one of your target keywords will suppress your own ads, costing you impressions and clicks you should be getting.
Google does not warn you when this happens. You simply see lower impression volume and cannot explain why.
To check for conflicts: go to the Negative keywords tab in your campaign, then look through your negatives and compare them against your active keyword list. Pay particular attention to broad match negatives since they cast the widest net and are most likely to catch unintended matches.
If you suspect a conflict is happening, temporarily pause the negative keyword you think is causing the issue and monitor impression volume over the next 24 to 48 hours. If impressions recover, you found your problem.
Common Negative Keyword Mistakes That Drain Your Budget
These mistakes appear in accounts managed by beginners and experienced advertisers alike. Some are obvious in hindsight. Others are subtle enough to go unnoticed for months while quietly costing significant money.
Not having any negative keywords at all
This sounds basic but it is more common than it should be. A significant portion of Google Ads accounts running today have either no negative keywords or a list that was set up at launch and never touched again.
Google's matching algorithms have become more aggressive over time. Broad match in particular will show your ads for searches that are conceptually related to your keywords but nowhere near your actual offer. Without negative keywords, you are handing Google a blank check and trusting its judgment entirely. That trust is frequently misplaced.
If your account has been running for more than 30 days with no negative keyword review, pull your Search Terms Report right now. The results will almost certainly surprise you.
Using only broad match negatives
Broad match negatives feel comprehensive because they block any search containing your negative keyword terms in any order. The problem is they can be too comprehensive, accidentally blocking searches that are actually relevant to your business.
If you add "management" as a broad match negative to avoid searches like "property management," you might also accidentally suppress your ads for "Google Ads management services," which is exactly the search you want to appear for.
Use broad match negatives for high-confidence universal exclusions only. For anything more nuanced, phrase match is a safer default.
Blocking too aggressively and cutting off good traffic
The opposite of having no negative keywords is having too many, applied too broadly. Over-negating is a real problem that manifests as a sudden drop in impression volume that is difficult to trace back to a cause.
This typically happens when an advertiser sees a bad search term, panics, and adds a broad match negative that is far wider than the specific query they wanted to block. Blocking "free" as a broad match negative in a campaign that includes keywords like "risk-free" or "hassle-free" is a common example.
Before adding any negative keyword, read it back and ask what other searches it might block. If the answer is anything you would actually want to appear for, narrow the match type or choose a more specific phrase.
Never reviewing the Search Terms Report
Adding negative keywords at campaign launch and never revisiting them is like changing the oil in your car once and assuming it never needs changing again. Search behavior shifts constantly. New irrelevant queries emerge. Seasonal searches appear. Google's matching evolves.
Accounts that review their Search Terms Report monthly consistently outperform accounts that do not, because they are continuously redirecting budget away from wasted spend and toward converting searches. This single habit is one of the highest-return activities in paid search management.
Ignoring singular and plural variations
Google treats singular and plural versions of words as the same match in most cases, but negative keywords do not always follow the same rules. If you add "service" as a negative but not "services," you may still see irrelevant traffic coming through on the plural version depending on the match type and context.
When adding negative keywords, think through the natural variations: singular and plural, common misspellings, abbreviations, and hyphenated versions. It is better to add a few extra variations upfront than to discover a gap in your Search Terms Report three months later.
Applying the same negative list to every campaign without reviewing it
Shared negative keyword lists are a powerful efficiency tool. They become a liability when applied without thinking. A term that is irrelevant in one campaign context may be exactly what you are targeting in another.
A Google Ads management agency running separate campaigns for small business clients and enterprise clients should not necessarily apply the same negative list to both. "Small business" might be a negative in the enterprise campaign but a target keyword in the small business campaign. Applying lists blindly creates conflicts that silently suppress the wrong ads.
Always review a negative keyword list in the context of the specific campaign before applying it. What took 30 seconds to apply can take hours to diagnose if it causes impression drops you cannot explain.
Forgetting about negative keywords at the account level
Most advertisers manage negative keywords at the campaign level and stop there. Account-level negative keyword lists, applied through the Shared Library, block terms across every eligible campaign in the account simultaneously.
For terms that are universally irrelevant to your business, managing them at the account level is significantly more efficient than maintaining the same exclusions across every campaign individually. It also reduces the risk of a new campaign going live without the baseline protections that every campaign should have.
If your account does not have at least one account-level negative keyword list, that is a gap worth closing today
How Buddylytics Manages Negative Keywords for Clients
Reading a guide like this gives you the framework. Applying it consistently across every campaign, reviewing it monthly, and catching the conflicts and over-blocking issues before they cost you real money is where most in-house teams and business owners run out of time. That is the work we do every day.
Buddylytics is a data-driven digital marketing and analytics agency based in Florida. We work with established businesses that are already running ads and want better results from the budget they are already spending.
Negative keyword management is built into every account we touch from day one. Before we launch anything, we build a baseline exclusion list tailored to the client's business, offer, and audience. We apply it at the right levels, campaign and account, depending on how broadly each term needs to be blocked. Then we review the Search Terms Report monthly and add to the list based on what the data is actually showing us, not assumptions.
Here is what that looks like in practice across a few of the clients we work with.
AutoFrance, a multi-million dollar automotive company, operates in one of the most competitive paid search environments. Irrelevant traffic at their spend levels is not just an annoyance, it is thousands of dollars in wasted budget per month. Through disciplined negative keyword management combined with coordinated ad copy strategy across Google and Meta, we helped them achieve a 38x ROAS on Google and 25% year-over-year revenue growth.
ChiroEnvy, a chiropractic practice entering the competitive Central Florida market, needed their campaigns to reach patients with genuine appointment intent from day one, not researchers, students, or people looking for DIY health advice. Precise negative keyword management was part of how we built their campaigns to reach a 20x peak ROAS and 124% appointment growth year over year, growth that ultimately funded the opening of a second practice location.
Suffern's New Barber Shop came to us after five years of stagnant growth despite running ads. Part of the problem was budget leaking to irrelevant searches that looked related to barbershop services but represented audiences who would never book an appointment. After cleaning up their targeting and negative keyword strategy, they tripled their client volume in six months.
Across every one of these accounts, negative keyword management was not a one-time setup task. It was an ongoing process of reviewing data, identifying waste, and making deliberate adjustments based on what was actually happening in the account.
If you are already spending $2,500 or more per month on Google Ads and want to know whether irrelevant traffic is draining your budget, fill out our contact form for a free ad account review. We will pull your Search Terms Report, identify what is costing you money, and show you specifically where the waste is coming from.
Frequently Asked Questions About Negative Keywords in Google Ads
What is the difference between a negative keyword and a regular keyword?
A regular keyword tells Google which searches should trigger your ad. A negative keyword tells Google which searches should never trigger your ad. They work together to define the boundaries of who sees your ads. Regular keywords cast the net. Negative keywords pull out the searches that should not be in it.
How many negative keywords should I have in my account?
There is no magic number. A new account might start with 20 to 30 universal exclusions and grow the list over time based on Search Terms Report data. A mature account that has been actively managed for a year or more might have several hundred negatives across multiple lists. The right number is whatever accurately reflects the searches that are irrelevant to your business. Focus on quality and relevance rather than hitting a specific count.
Can negative keywords hurt my campaign performance?
Yes, if applied incorrectly. Over-negating, using broad match negatives that are too wide, or applying a negative keyword list to a campaign without reviewing it first can suppress valid traffic and reduce impressions. This is why reviewing your negative keywords quarterly and checking for conflicts between your negatives and your target keywords is important. Negative keywords improve performance when they are accurate and hurt performance when they are applied carelessly.
Do negative keywords work the same way in Google Shopping campaigns?
Partially. Negative keywords apply to Shopping campaigns in Google Ads and work similarly to Search campaigns in terms of blocking irrelevant queries. However, Shopping campaigns do not use keywords for targeting the way Search campaigns do. Google matches Shopping ads to searches based on your product feed. Negative keywords in Shopping campaigns are used exclusively to exclude irrelevant queries rather than to define targeting. The process for adding them is the same but the strategic context is different.
How often should I review my negative keyword lists?
At minimum, once a month. Pull your Search Terms Report, identify irrelevant queries that spent budget without converting, and add them to the appropriate negative list. For new campaigns or recently restructured accounts, review weekly for the first 60 days since that is when the most irrelevant traffic tends to come through. Quarterly, do a full audit of your existing lists to check for outdated terms and potential conflicts with your target keywords.
Should I use the same negative keywords across all my campaigns?
Only for terms that are universally irrelevant to your business regardless of context. Universal exclusions like job-seeking terms, free-seeking terms, and student-related searches usually apply across every campaign. Everything else should be evaluated campaign by campaign. A term that is irrelevant in one campaign may be exactly what you are targeting in another. Applying negative lists without reviewing them in the context of each campaign is one of the most common causes of unexplained impression drops.
What happens if a negative keyword conflicts with one of my target keywords?
Your ad will be suppressed for searches that match both the target keyword and the negative keyword, which means you lose impressions you should be getting. Google does not alert you when this happens. The symptom is a drop in impression volume that is difficult to trace. To check for conflicts, compare your negative keyword list against your active keywords, paying particular attention to broad match negatives. If you suspect a conflict, pause the negative keyword temporarily and monitor whether impressions recover over the next 24 to 48 hours.
Can I import a negative keyword list from another account?
Yes. In Google Ads you can export negative keyword lists from one account and import them into another. Go to Tools, then Shared Library, then Negative keyword lists, and use the download option to export. This is useful when managing multiple accounts in the same industry or when setting up a new account where you want to apply proven exclusions from an existing account. Always review the imported list before applying it since terms that are relevant exclusions in one business context may not be appropriate for another.
Stop Paying for Clicks That Will Never Convert
Negative keywords are not a advanced tactic reserved for big accounts with dedicated PPC teams. They are a fundamental part of running Google Ads efficiently at any budget level. Every dollar your campaign spends on an irrelevant search is a dollar that cannot go toward a search that actually converts.
The accounts consistently getting the most out of their Google Ads budget are not necessarily the ones spending the most. They are the ones who know exactly who they are paying to reach and have built the systems to keep everyone else out.
Everything in this guide, from understanding match types to building themed negative keyword lists to reviewing your Search Terms Report monthly, comes down to one principle: your budget should work for your business, not for Google's algorithm.
If you have been running Google Ads and suspect your budget is leaking to irrelevant searches, that suspicion is almost certainly correct. The only question is how much it is costing you and where exactly it is going.
If you are spending $2,500 or more per month on Google Ads, we will pull your Search Terms Report, identify what is costing you money, and show you specifically where the waste is coming from. No obligation, no sales pitch, just a straight look at what your current targeting is doing and what it could be doing instead.
