Negative Keywords In Google Ad Groups

To add negative keywords to a Google Ads ad group, open the relevant campaign and go to Campaigns, then Audiences, keywords and content. Select Search keywords, open Negative search keywords, click the plus icon, choose Ad group, then select the correct campaign and ad group. Enter one negative keyword per line, choose the right match type, and save your changes.

Google then applies the exclusion only to that specific ad group, which is useful when a search term is irrelevant in one part of your account but still valuable somewhere else. Negative keywords help stop your ads from showing for searches that are unlikely to lead to a sale or enquiry, so they can reduce wasted spend, improve traffic quality, and make your Google Ads budget work harder.

Used badly, negative keywords can block useful searches and limit your reach, so it is important to understand scope, match types, and search term data before adding them in bulk. Google Ads can feel confusing when settings are hidden in different menus, and it is easy to worry about wasting budget when irrelevant clicks keep coming through.

If you are seeing clicks that never turn into enquiries, C2 Marketing can help you review search terms, refine your negative keyword strategy, and build campaigns that attract more relevant visitors.

What Is A Negative Keyword?

A negative keyword is a word or phrase that prevents your ad from showing when certain searches are made. For example, if you sell premium office chairs and do not offer free products, adding free as a negative keyword can help stop your ads appearing for searches such as free office chairs. Google explains the concept in its official guidance, which is useful if you want to check platform definitions.

It helps to understand the difference between a keyword, a search term, and a negative keyword. A keyword is what you target in Google Ads, a search term is what someone actually types into Google, and a negative keyword is what you exclude. For instance, a plumber may target emergency plumber, see the search term emergency plumber jobs, and add jobs as a negative keyword because the searcher is looking for work, not a service.

When Should You Add Negative Keywords To An Ad Group?

You should add a negative keyword to an ad group when the exclusion only applies to that one ad group. You might notice this when reviewing your Search terms report, especially when different ad groups target different products, services, locations, or customer intentions. For example, a laptop retailer may have one ad group for new laptops and another for refurbished laptops. In that setup, refurbished may be a negative keyword in the new laptop ad group, but not across the whole campaign.

Ad group negative keywords are also useful for keeping closely related ad groups focused. If one ad group promotes training courses and another promotes done for you services, the service ad group may need negatives such as course, training, or qualification. This prevents the wrong ad from showing while still allowing those searches to be targeted elsewhere in the account.

Do not use an ad group negative keyword when the search is irrelevant to every ad group in the campaign. In that case, a campaign level negative keyword is usually cleaner. If the same exclusion applies across several campaigns, a shared negative keyword list may be the better option.

How To Add Negative Keywords In A Google Ads Ad Group

The process in Google Ads is straightforward once you know where to look, although the interface can feel a little hidden if you are new to PPC. Start by signing in to Google Ads and opening the campaign that contains the ad group you want to edit. Make sure you are working in the correct account if you manage more than one business or brand.

Step 1: Open Campaigns in the left menu, then select Audiences, keywords and content. Choose Search keywords and open the Negative search keywords section.

Step 2: Click the plus icon to add new negative keywords, then select Add negative keywords and choose Ad group. Pick the correct campaign and the specific ad group you want the exclusion to apply to.

Step 3: Enter one negative keyword or phrase per line, using the correct notation for broad, phrase, or exact negative match. Click Save, then check that the exclusion appears in the right ad group.

Before saving, check that your negative keyword does not overlap with a keyword you actively want to target. If you target free consultation but add free as a broad negative keyword in the same ad group, your ads may stop showing for searches you actually wanted. This is where many advertisers accidentally block useful traffic.

If you want expert help with campaign structure, search term reviews, and wasted spend reduction, C2 Marketing offers practical PPC management for businesses that want clearer results from paid search. A good negative keyword process should support your wider campaign goals, not simply remove traffic without context.

Negative Keyword Match Types Explained

Negative keyword match types control how strictly Google applies your exclusion. They do not behave exactly like positive keyword match types, so it is worth slowing down here. A poorly chosen match type can either miss unwanted searches or block too much useful traffic.

Negative broad match: Enter the keyword without punctuation, such as free shoes. This can block searches containing all the negative words, even if the order is different, but it may not block searches that include only one of the words.

Negative phrase match: Put the phrase in quotation marks, such as "free shoes". This generally blocks searches where the words appear in the same order, with possible extra words before or after.

Negative exact match: Put the phrase in square brackets, such as [free shoes]. This blocks that specific search meaning more tightly and is usually safer when you only want to remove one query.

For example, a negative phrase match of "free laptops" may block best free laptops for students, while an exact negative of [free laptops] is much narrower. A negative broad match of free laptops may block searches containing both words, but it does not automatically block every related variation. If you are unsure, start with exact match and widen it later.

If you need a wider understanding of positive match behaviour as well, the C2 Marketing article on Google Ads match types is a useful next read.

Negative keywords also do not automatically cover every close variant, synonym, plural, misspelling, or related phrase. If job is negative, you may still need to review whether jobs, career, careers, and salary should also be excluded. Only add these when they are clearly irrelevant, because too many exclusions can reduce your ability to reach potential customers.

Examples Of Negative Keywords By Business Type

For ecommerce businesses, negative keywords often help separate buying intent from unsuitable searches. A retailer selling only new products might exclude used, second hand, refurbished, or free, depending on the offer. If different product categories sit in separate ad groups, category terms can also be used carefully as ad group negatives to prevent internal competition.

For local service businesses, common negative keywords include jobs, careers, salary, training, DIY, and course. These searches often come from people looking for employment, education, or advice rather than someone ready to book a service. However, a business that sells training should not exclude training terms across the whole account, which is why scope matters.

For B2B services, terms like template, definition, student, and free may signal early research rather than buying intent. That does not always make them bad, especially if your funnel uses useful content to nurture future leads. Review performance before excluding informational searches, as some may assist conversions even if they do not convert immediately.

How To Find Negative Keyword Ideas

The best place to find negative keyword ideas is the Search terms report. This shows the actual searches that triggered your ads, which is more reliable than guessing from a generic list. Open Google Ads, go to Insights and reports, then Search terms, and review the queries that have spent budget.

Classify each search term into three simple groups: clearly relevant, clearly irrelevant, and uncertain. Clearly irrelevant searches can usually be added as negative keywords, while relevant searches should be left alone and may even become new targeted keywords. If a term is uncertain, check the landing page intent, conversion data, and whether the query could be useful in another ad group before blocking it.

It is worth asking whether the search term has converted before excluding it. Some wasted spend comes from search terms that look harmless at first, but the opposite can also happen. Some odd looking queries can still lead to useful enquiries, so evidence should guide the decision.

A simple review template can keep your process tidy, especially if more than one person manages the account. Include columns for search term, reason for exclusion, match type, scope, date added, and owner. This makes later audits much easier and prevents people from adding negatives without understanding why they were chosen.

Ad Group Negatives Versus Campaign Negatives And Lists

Choosing the right scope is just as important as choosing the right keyword. Use an ad group negative when the exclusion applies to one ad group only, such as excluding refurbished from a new product ad group. Use a campaign negative when the exclusion applies to every ad group in that campaign, such as excluding jobs from a lead generation campaign that never offers employment.

Use a negative keyword list when the same exclusions should be reused across multiple campaigns. This is helpful for common terms like free, jobs, salary, or DIY, provided they are genuinely irrelevant across those campaigns. Remember that a list only works when it is applied to the relevant campaigns, so always check list associations after making changes.

A quick decision process can help. If the term is bad only for one ad group, add it at ad group level. If it is bad for one whole campaign, add it at campaign level. If it is bad across several campaigns, use a shared list and review it regularly. If the query could still be useful in another ad group, keep the exclusion narrow.

Using Google Ads Editor For Bulk Changes

Google Ads Editor is useful when you need to add or review negative keywords across many ad groups. Open Keywords and targeting, then Keywords, negative, and choose to add an ad group negative keyword. Select the destination, enter the keyword, review the match type, and post the changes once you are happy.

For larger accounts, the Make multiple changes option can save time because you can paste several rows at once. This is helpful for ecommerce accounts with many product groups or service accounts with several locations. Always review pending changes before posting, because a bulk mistake can affect a lot of traffic very quickly.

Common Mistakes To Avoid

The biggest mistake is adding negatives without checking search term data. A phrase may look irrelevant at first glance but still produce leads, especially in longer sales journeys. Before excluding a term, check whether it has converted, assisted conversions, or matched a landing page that serves a useful purpose.

Another common problem is choosing broad negative match when exact or phrase match would be safer. Broad exclusions can be effective, but they need confidence. If you only want to block one exact query, exact negative match gives you more control.

Advertisers also forget that negative keywords do not automatically cover every close variant. If unwanted traffic continues, compare the search term with the negative keyword and ask whether the wording actually matches the exclusion rules. If not, add the missing variant only when it is clearly unwanted.

You do not need to block everything at once. A careful review is usually the safest approach. A tidy negative keyword list is useful, but an overfilled one can quietly limit growth.

Why Negative Keywords May Not Be Working

If a negative keyword is not blocking the searches you expected, first check where it was added. It may be sitting in the wrong ad group, applied only to a different campaign, or stored in a list that has not been attached to the campaign. Scope errors are easy to miss when accounts contain several similar campaigns.

Next, check the match type. An exact negative keyword will not block longer searches with extra words, while a phrase negative needs the wording in the right order. If the query uses a plural, synonym, or spelling variation, you may need a separate negative keyword.

Finally, check for conflicts with your positive keywords and overall campaign structure. Negative keywords should improve relevance, not fight against your targeting. If your account is struggling with high costs, pairing negative keyword reviews with broader optimisation can help, and C2 Marketing has practical advice on how to lower cost per click without cutting useful traffic.

Negative Keyword Audit Checklist

A regular audit keeps your negative keywords useful as campaigns, products, and customer behaviour change. Review recent search terms, identify clearly irrelevant queries, choose the narrowest match type that solves the problem, and add the exclusion at the correct level. After saving, verify that the negative keyword appears in the correct ad group, campaign, or list.

Check search terms regularly: Review the Search terms report and look for queries that are spending budget without matching your offer, audience, or landing page intent. This should be part of routine account optimisation, not something done only when performance drops.

Record why each negative was added: Note the reason for the exclusion, the match type, the scope, the date added, and who added it. This helps with future audits and prevents useful searches being blocked without context.

Use the safest match type: Exact or phrase match is often safer when broad match feels risky. Check for overlap with active targeted keywords, confirm the exclusion is applied at the right level, and monitor impressions, clicks, conversions, and lead quality after the change.

Review old negatives: Offers, landing pages, and business priorities change over time. Remove or adjust negative keywords when they no longer support the account strategy.

Final Thoughts

Adding negative keywords to Google ad groups is one of the simplest ways to improve PPC traffic quality, but it works best when it is based on evidence rather than guesswork. Start with the Search terms report, identify the searches that are clearly irrelevant, and apply exclusions at the narrowest sensible level. Ad group negatives are ideal when the issue is specific to one product, service, or audience segment.

The aim is not to block as much traffic as possible. The aim is to protect your budget while keeping the searches that could lead to enquiries, sales, and long term growth. Review your negative keywords regularly, document why they were added, and treat them as part of ongoing Google Ads optimisation rather than a one off setup task.

Frequently Asked Questions

Can I Add Negative Keywords To One Ad Group Only?

Yes. In Google Ads, you can add negative keywords at ad group level so the exclusion only applies to that selected ad group.

What Is The Difference Between A Keyword And A Negative Keyword?

A keyword helps your ad appear for relevant searches, while a negative keyword prevents your ad from showing for searches you do not want.

Should I Use Broad, Phrase, Or Exact Negative Match?

Use the narrowest match type that blocks the unwanted search without restricting useful traffic. Exact match is safest for one query, while phrase and broad match cover wider patterns.

Where Do I Find Negative Keyword Ideas?

The Search terms report is the best place to start because it shows the real searches that triggered your ads. Review it regularly and exclude only clearly irrelevant terms.

Why Are My Negative Keywords Not Blocking Every Variation?

Negative keywords do not automatically match every close variant, synonym, plural, or misspelling. You may need to add extra variations if they are genuinely unwanted.

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