How to Use Negative Keywords in Google Ads to Stop Wasting Budget
Negative keywords are one of the simplest ways to reduce wasted spend in Google Ads.
They are also one of the most overlooked.
Many small businesses focus heavily on the keywords they want to target, but spend far less time thinking about the searches they do not want to appear for. That is a problem, because Google Ads can spend budget quickly when your ads show for searches that are irrelevant, too broad, too early-stage or completely wrong for your business.
A campaign may look fine on the surface. It may get clicks. It may even generate conversions. But when you look deeper, you may find your budget is being spent on searches involving jobs, salaries, free resources, DIY advice, training courses, locations you do not serve or services you do not offer.
That is where negative keywords matter.
Negative keywords help stop your ads showing for searches that are not right for your business. Used properly, they can improve traffic quality, protect your budget, reduce irrelevant clicks and help your campaigns focus on searches that are more likely to become valuable leads or sales.
For small businesses, this is especially important. Every wasted click reduces the budget available for people who are actively looking for your product or service.
This guide explains what negative keywords are, how they work, how to find them, how to add them, and how to use them without accidentally blocking valuable traffic.
What are negative keywords in Google Ads?
Negative keywords are words or phrases that prevent your ads from showing for certain searches.
Normal keywords tell Google what you want to target. Negative keywords tell Google what you want to avoid.
For example, imagine you run a PPC agency that manages Google Ads for businesses. You may want your ads to show for searches such as “Google Ads agency” or “PPC management for small business”. But you probably do not want your ads to show for searches such as “Google Ads jobs”, “Google Ads course”, “free Google Ads training” or “Google Ads login”.
In that case, words such as “jobs”, “course”, “free training” and “login” could be added as negative keywords.
The purpose is simple: to stop paying for searches that are unlikely to become customers.
Negative keywords do not guarantee perfect traffic, but they give you more control. They help narrow your campaign towards the searches that matter and away from the searches that waste budget.
For lead generation campaigns, negative keywords can be one of the most important account management tools. They help improve the quality of traffic before the user even reaches your website.
Why negative keywords matter for small businesses
Small businesses usually do not have unlimited advertising budgets.
That means budget control matters. You cannot afford to pay for irrelevant clicks for weeks or months without noticing. A few poor searches may not seem like much, but wasted spend builds quickly.
For example, if your average cost per click is £5 and you waste 100 clicks per month on irrelevant searches, that is £500 of wasted budget. Over a year, that becomes £6,000. For many small businesses, that is a meaningful amount of money.
The bigger issue is that irrelevant traffic can also damage your data.
If the wrong people click your ads, your conversion rate may fall. If poor-fit users submit forms or make short, low-quality calls, Google Ads may start optimising towards the wrong type of lead. This is especially risky when automated bidding strategies are used.
Negative keywords help protect the account by improving relevance.
They can help you avoid:
Paying for job seekers.
Paying for people looking for free advice.
Paying for students looking for courses.
Paying for users outside your service area.
Paying for DIY searches.
Paying for unrelated products or services.
Paying for searches that are too broad to convert.
Paying for traffic that looks active but has little commercial value.
For a small business, PPC success is not just about getting more clicks. It is about getting the right clicks.
Negative keywords help with that.
Negative keywords vs normal keywords
Normal keywords and negative keywords have opposite jobs.
A normal keyword helps your ad appear for relevant searches. A negative keyword helps stop your ad appearing for irrelevant searches.
For example, a local accountant might target the keyword “small business accountant”. That tells Google the business wants to reach people searching for accounting services.
But the same account might add negative keywords such as “jobs”, “salary”, “course” and “degree”. That tells Google the business does not want to appear for searches around accountancy careers or education.
Both are important.
If you only add normal keywords, your campaign may still show for searches that are not useful. If you only focus on negatives, you may avoid some waste but still lack a strong targeting strategy.
Good Google Ads management uses both.
Positive keywords help define opportunity. Negative keywords help remove poor-fit traffic.
The balance between the two is what creates a cleaner, more focused campaign.
Examples of negative keywords for small businesses
The best negative keywords depend on your business, but many small businesses share common patterns.
A service business may want to exclude:
jobs
salary
career
course
training
apprenticeship
degree
free
template
PDF
DIY
meaning
definition
examples
login
support number
complaints
reviews, depending on the strategy
cheap, if the business is premium
used, if not relevant
wholesale, if not relevant
locations outside the service area
A PPC agency might exclude:
Google Ads jobs
Google Ads salary
Google Ads course
Google Ads certification
Google Ads login
free Google Ads training
Google Ads tutorial
DIY Google Ads
Google Ads meaning
A solicitor might exclude:
law degree
solicitor salary
legal jobs
free legal advice, depending on the business model
law course
legal template
DIY legal letter
A trades business might exclude:
DIY repair
plumbing jobs
electrician salary
training course
how to fix, depending on strategy
parts only
manual
YouTube tutorial
An ecommerce business might exclude:
free
second hand
used
manual
repair
jobs
wholesale, if not offered
returns, depending on context
competitor support searches
These examples are not universal. You should not copy every negative keyword blindly. The right list depends on your business model, margins, services, locations and customer intent.
A keyword such as “cheap” might be wrong for a premium professional service but valuable for a discount retailer. A term like “reviews” might be poor for one campaign but useful for another.
Negative keywords should be chosen based on commercial relevance, not habit.
How negative keywords reduce wasted spend
Negative keywords reduce wasted spend by stopping your ads from entering auctions that are unlikely to help your business.
That means more of your budget can be used on searches with stronger commercial intent.
For example, a campaign targeting “Google Ads management” might also appear for searches around “Google Ads management course” depending on match types and account settings. If the business sells management services rather than training, that click is unlikely to convert into a customer.
Adding “course” as a negative keyword can help block that poor-fit traffic.
The same principle applies across industries.
If a dentist does not offer NHS services, they may want to exclude certain NHS-related searches. If a local trades business only serves Manchester, it may need to exclude other cities. If a B2B consultant does not work with startups, it may need to exclude “startup advice” or similar searches depending on the data.
Negative keywords are not only about saving money. They are about improving the quality of the traffic that remains.
When irrelevant searches are removed, several things can improve:
Budget is focused on better searches.
Click quality can improve.
Conversion rate may improve.
Lead quality may improve.
Reporting becomes clearer.
Bidding strategies receive cleaner signals.
Sales teams waste less time on poor enquiries.
The goal is not to block as much as possible. The goal is to block searches that clearly do not match the business.
How to find negative keyword ideas
The best place to find negative keyword ideas is the search terms report.
Your keywords are the phrases you choose to target. Search terms are the real searches people typed before your ads showed or were clicked. This is where wasted spend becomes visible.
When reviewing the search terms report, look for searches that:
Are not related to your service.
Show weak buying intent.
Contain job or career terms.
Contain education or course terms.
Contain free or DIY intent.
Mention locations you do not serve.
Mention services you do not provide.
Generate spend without useful leads.
Generate leads that your sales team says are poor quality.
Search terms should be reviewed regularly, especially when a campaign is new or when match types are broad.
You can also find negative keyword ideas from sales feedback. If your team keeps receiving poor-fit enquiries, look for patterns. Are people asking for services you do not offer? Are they too far away? Are they looking for employment? Are they seeking free advice? Are they outside your target market?
Website search data, CRM notes, call recordings and enquiry forms can also reveal negative keyword opportunities.
Your negative keyword list should become stronger over time as real account data builds.
How to add negative keywords in Google Ads
The exact interface in Google Ads can change, but the process usually follows the same logic.
You choose where the negative keyword should apply, enter the negative keyword, choose the match type, then save it.
In simple terms, you can add negative keywords at:
Account level
Campaign level
Ad group level
Shared list level
For many small businesses, shared negative keyword lists are useful because they allow the same exclusions to be applied across multiple campaigns. For example, a general list might include job, salary, course, training and free terms that are irrelevant across the whole account.
Campaign-level negatives are useful when an exclusion should apply to one campaign but not another.
Ad group-level negatives are useful when you need more precise control inside a campaign. For example, you may want to stop one ad group from matching searches that should belong to another ad group.
When adding negatives, enter one keyword or phrase per line. Use the correct match type symbols where needed.
The most important point is to add negative keywords carefully. Do not rush. A negative keyword can block your ads from valuable searches if it is too broad or applied in the wrong place.
Always consider the impact before saving.
Campaign-level vs ad group-level negative keywords
Campaign-level negative keywords apply across the whole campaign.
Use them when a term is irrelevant to every ad group in that campaign.
For example, if a campaign promotes paid Google Ads management, terms like “jobs”, “salary” or “course” may be irrelevant across the campaign. Adding them at campaign level can be sensible.
Ad group-level negative keywords apply only to a specific ad group.
Use them when a term is not bad for the whole campaign, but should be blocked from one section.
For example, imagine a business has one campaign with separate ad groups for “Google Ads audit” and “Google Ads management”. You might use ad group negatives to stop audit-related searches showing ads from the management ad group, and vice versa.
This helps keep search intent aligned with the right advert and landing page.
Shared negative keyword lists can be used across multiple campaigns. These are useful for common exclusions such as job seekers, free resources, locations not served or irrelevant service types.
The right level depends on the situation.
Ask:
Is this term irrelevant everywhere?
Is it irrelevant only for one campaign?
Is it only wrong for one ad group?
Could this negative block useful searches elsewhere?
Should this be part of a shared list?
Good negative keyword management is not just about adding exclusions. It is about adding them in the right place.
Negative keyword match types explained
Negative keyword match types behave differently from normal positive keyword match types. This is important because using the wrong negative match type can either fail to block enough traffic or block too much.
There are three main negative keyword match types: negative broad, negative phrase and negative exact.
Negative broad match
Negative broad match is the default negative keyword match type.
With negative broad match, your ad may be blocked when a search contains all the words in your negative keyword, even if the words appear in a different order.
For example, if your negative broad keyword is:
free course
Your ad may be blocked for searches such as:
free Google Ads course
course for Google Ads free
Google Ads free course online
However, your ad may still show if the search contains only one of the words, such as:
Google Ads course
free Google Ads help
That means negative broad is useful, but it does not always block every variation you might expect.
Negative phrase match
Negative phrase match blocks searches that contain the exact phrase in the same order, even if there are words before or after it.
For example, if your negative phrase keyword is:
“free course”
Your ad may be blocked for:
Google Ads free course
best free course for ads
free course online
But it may not be blocked for:
course free Google Ads
free Google Ads training course
Negative phrase match is useful when a specific phrase clearly signals poor intent.
Negative exact match
Negative exact match blocks only the exact search phrase, without extra words.
For example, if your negative exact keyword is:
[Google Ads course]
Your ad may be blocked for:
Google Ads course
But it may still show for:
free Google Ads course
Google Ads course online
Google Ads training course
Negative exact match gives the most precise control, but it may not block wider variations.
Which negative match type should you use?
Use negative broad when the combination of words is clearly irrelevant and you want broader blocking.
Use negative phrase when a specific phrase is the issue.
Use negative exact when you only want to block one precise search term.
For small businesses, the safest approach is usually to be deliberate rather than aggressive. Do not add a very broad negative keyword if it could block valuable searches.
For example, adding “free” as a negative keyword might make sense for a premium service business. But if you offer a free consultation, free audit or free quote, blocking “free” could prevent your ads from showing for relevant searches.
Context matters.
Common negative keyword mistakes
The first mistake is adding negative keywords too broadly.
If you block a broad term without thinking, you may stop your ads from showing for valuable searches. For example, blocking “quote” would be a major mistake for many lead generation campaigns because quote-based searches often have strong commercial intent.
The second mistake is using the same negative keyword list for every campaign.
Some negatives apply across the whole account. Others should only apply to specific campaigns. A term that is irrelevant in one campaign may be valuable in another.
The third mistake is not reviewing the search terms report.
You cannot build a strong negative keyword strategy from guesswork alone. Real search data should shape the list.
The fourth mistake is blocking symptoms without understanding intent.
A search might look unusual but still produce good leads. Do not block terms simply because they are unfamiliar. Check spend, conversions and lead quality first.
The fifth mistake is forgetting location negatives.
If your business serves specific areas, searches from or about irrelevant locations can waste budget.
The sixth mistake is not adding close variants where needed.
Negative keywords can be more literal than many advertisers expect. If a term is important to exclude, you may need to add different variations, plurals, abbreviations or related phrases.
The seventh mistake is never reviewing old negatives.
Businesses change. Services change. Locations change. Campaign strategy changes. A negative keyword that made sense last year may block useful traffic today.
Negative keywords are powerful, but they need careful management.
Starter negative keyword list for small businesses
A starter negative keyword list can help reduce obvious waste before your campaign launches.
This list should be edited before use. Do not copy every term blindly.
Common starter negatives include:
jobs
job
career
careers
salary
salaries
wages
apprenticeship
apprentice
training
course
courses
degree
qualification
certification
free course
tutorial
PDF
template
templates
example
examples
meaning
definition
DIY
how to
manual
login
sign in
customer service
complaints
forum
Reddit, depending on strategy
YouTube, depending on strategy
download
software, if not relevant
wholesale, if not relevant
used, if not relevant
second hand, if not relevant
cheap, if not aligned with your positioning
For local businesses, also consider location negatives for areas you do not serve.
For example, if you only work in Manchester, you may want to exclude cities or regions outside your service area if they appear in search term data.
For B2B businesses, you may need to exclude consumer searches.
For premium services, you may need to exclude bargain-led searches.
For service providers, you may need to exclude job seekers, students and DIY searches.
The best negative list is not the longest list. It is the most commercially relevant list.
Negative keywords for lead generation campaigns
Lead generation campaigns need particular care because poor-fit enquiries can still look like conversions.
A person may fill in a form even if they are not a good fit. They may be outside your service area, have the wrong budget, need a service you do not offer or be unlikely to buy.
Negative keywords can help reduce this problem by filtering out poor intent before the click.
For lead generation, review searches that produce:
Unqualified leads
Short or irrelevant calls
Low-budget enquiries
Wrong service enquiries
Wrong location enquiries
Student or job-seeker enquiries
Free advice requests
DIY support requests
Competitor support queries
Then decide whether those terms should be excluded.
For example, if a legal firm receives lots of free advice enquiries that never convert, it may need to review whether “free” terms should be excluded. If a PPC agency receives enquiries from people looking for training, it may need to exclude “course”, “training” and “certification”.
The aim is not to make lead volume look smaller. The aim is to make lead quality stronger.
A campaign with fewer but better leads may be more valuable than a campaign with more poor-quality enquiries.
Negative keywords for local businesses
Local businesses should pay close attention to location intent.
If you only serve a specific area, you do not want to pay for searches from people outside that area. But location behaviour can be messy. People may search from one place while looking for services in another. They may include location names in the query. They may search “near me” while travelling.
This is why location targeting and negative keywords should work together.
A local business should review search terms for:
Cities not served
Counties not served
Postcodes not served
Regions outside the service area
“near me” searches from irrelevant areas
Competitor location searches
National searches if the business is local only
For example, a local trades business serving Birmingham may not want to pay for searches involving Manchester, Leeds or London. If those terms appear in the search terms report, they may need to be excluded.
However, be careful. If someone searches “business consultant London” and you are a remote consultant serving London clients, that search may be valuable. Do not exclude locations purely because they are not where your office is based.
Always judge by service area and commercial relevance.
Negative keywords for ecommerce campaigns
Ecommerce advertisers also need negative keyword control, especially where product searches have many variations.
An ecommerce business may want to exclude searches around:
Free
Used
Second hand
Repair
Manual
Instructions
Parts, if not sold
Wholesale, if not offered
Jobs
Returns
Customer service
Competitor support
DIY
PDF
Template
For example, if you sell new premium products, searches for “used” or “second hand” may not be useful. If you sell finished products, searches for “parts” or “repair manual” may waste spend.
Ecommerce negative keywords should be handled carefully because some terms can be valuable in one product category and irrelevant in another.
For example, “cheap” might be wrong for a premium brand but useful for a discount retailer. “Parts” might be irrelevant for one store but valuable for another.
Use product-level data, search terms and purchase quality to guide decisions.
How often should you review negative keywords?
Negative keywords should be reviewed regularly.
In a new campaign, search terms should be checked frequently because the account is still learning. This is when obvious waste often appears. A weekly review is usually sensible for active campaigns, especially where spend is meaningful.
For mature campaigns, the review rhythm may depend on budget, search volume and campaign complexity. Higher-spend accounts need more frequent checks. Lower-spend accounts may not generate enough search term data every few days, but they still need regular review.
A sensible routine might be:
Review search terms weekly during launch.
Add obvious negatives quickly.
Review lead quality monthly.
Update shared negative lists when patterns appear.
Audit negative keywords quarterly.
Remove or revise negatives that no longer fit the strategy.
Negative keyword work should not stop after launch.
Search behaviour changes. Match types evolve. Campaigns expand. New services are added. Competitors change. A healthy account keeps refining exclusions over time.
How to know if your negative keywords are working
Negative keywords are working when they improve traffic quality and reduce irrelevant spend without blocking valuable searches.
Signs they are helping include:
Fewer irrelevant search terms.
Lower spend on poor-fit queries.
Improved conversion rate.
Better lead quality.
Fewer enquiries from wrong locations.
Fewer job or training-related clicks.
More budget available for high-intent searches.
Cleaner reporting.
Improved cost per qualified lead.
But be careful not to judge only by lower spend.
If you add too many negative keywords, impressions and clicks may fall, but that does not automatically mean performance improved. You may have blocked useful demand.
The goal is better efficiency, not just less activity.
A good review should look at search term quality, conversion rate, cost per lead, lead quality and sales feedback together.
If lead quality improves and wasted searches fall, your negative keyword strategy is moving in the right direction.
More PPC resources you may like
If you are improving your Google Ads keyword strategy, these related guides can help you reduce wasted spend and generate better leads.
How to Choose Google Ads Keywords for Better Leads
Learn how to choose high-intent keywords, use match types properly and focus your PPC budget on searches that are more likely to become quality leads.
How to Set Up Google Ads for a Small Business Without Wasting Budget
Understand how to launch Google Ads with clear goals, accurate tracking, sensible budgets and landing pages built to convert.
Google Ads Audit Checklist: What to Check Before Spending More
Review the key areas to check before increasing your PPC budget, including tracking, search terms, negative keywords, bidding and landing pages.
Final thoughts
Negative keywords are not just a technical setting in Google Ads. They are one of the simplest ways to stop wasting money on the wrong searches.
For small businesses, they are especially important because every click has to work hard. If your ads are showing for job seekers, free resources, training searches, DIY queries, irrelevant locations or services you do not offer, your budget is not being used properly.
A strong negative keyword strategy helps keep your campaigns focused on the searches that matter. It improves intent, protects spend and supports better lead quality.
But negative keywords need care. Add them too broadly and you may block valuable traffic. Ignore them and you may keep paying for poor-fit clicks.
The best approach is to start with obvious exclusions, review the search terms report regularly, listen to sales feedback and keep refining your list over time.
At Invaro Media, we help businesses turn customer intent into measurable growth through Google Ads, Meta Ads and Microsoft Ads. If you are unsure whether your campaigns are wasting spend on irrelevant searches, we can review your search terms, negative keywords, tracking and lead quality to show where budget is being won, lost or hidden.
