Google Ads negative keywords are search terms you exclude so your ads do not show for irrelevant queries. A well-built negative list cuts wasted spend, improves click-through rate, and protects Quality Score by keeping your ads matched to high-intent searches.
Related: the campaign-level scope - See our campaign negative keywords guide for how the campaign scope differs from ad-group negatives.
Key Takeaways
- Negative keywords stop your ads from showing on searches that will never convert.
- Three match types apply to negatives: broad, phrase, and exact, each with a different blocking scope.
- Shared negative lists at the account level keep exclusions consistent across campaigns.
- The Search Terms report is your primary source for finding new negatives every week.
- Treat negative management as ongoing hygiene, not a one-time setup task.
What Are Negative Keywords in Google Ads?
Negative keywords are search terms you add to a Google Ads account so your ads will not show when a query contains them. They are the inverse of the keywords you bid on: instead of triggering an ad, they suppress it. The point is to keep your ads off searches that share a word with your product but signal a different, lower-intent need. A SaaS brand bidding on "project management" would add "job", "salary", and "course" as negatives so it stops paying for career-seeker clicks. The effect is tighter message-to-query fit, which lifts click-through rate and helps the auction reward your ad with better positions at lower cost.
How Do Negative Keyword Match Types Work?
Google Ads applies the same three match concepts to negatives as it does to positive keywords, and the match type controls how broadly a negative blocks a query:
| Negative match type | What it blocks |
|---|---|
| Broad (default) | Any search containing all your negative terms, in any order, with any other words around them. |
| Phrase | Searches that include your negative terms in the exact order, with extra words allowed before or after. |
| Exact | Only the precise search phrase you specify, with no extra words. |
Broad negatives are the workhorses for catching irrelevant variations, but they can over-block if your terms are common. Phrase and exact negatives give surgical control when a word is relevant in one context and not another. A practical pattern is to start with broad negatives for obviously irrelevant concepts, then tighten specific high-volume queries with phrase or exact negatives so you do not accidentally suppress a converting search.
Where Do You Add Negative Keywords?
You can add negatives at three levels, and the right level depends on how widely the exclusion should apply:
- Account level via a shared negative keyword list: best for terms that are irrelevant across every campaign, such as free, cheap, job, or competitor brand names you do not want to pay for.
- Campaign level: most accounts add negatives here so a campaign focused on one product or audience does not attract off-topic searches.
- Ad group level: use when a specific ad group targets a narrow intent and a term is irrelevant only to that group, not the whole campaign.
Shared lists are the efficient choice because you maintain one list and attach it to many campaigns. When a negative is specific to a single campaign's offer or geography, keep it local so you do not block a useful query in another campaign.
How Do You Find Negative Keywords?
The Search Terms report is the highest-signal source because it shows the actual queries that triggered your ads and whether they converted. Review it weekly and add any irrelevant query as a negative. Beyond that report, three more sources pay off:
- Competitor conquesting: if you bid on a competitor's name, add negatives for searches that include "careers", "login", or "stock" so you reach buyers, not employees.
- Industry-irrelevant modifiers: words like "free", "diy", "tutorial", "course", or "near me" when your offer is paid and remote.
- Hint tools: Google's keyword planner and the negative keyword suggestions in the interface surface related terms worth excluding before they spend.
What Belongs on a Starter Negative Keyword List?
A starter list should block the most common low-intent modifiers so a new account does not bleed budget while you gather Search Terms data. The exact words depend on your business, but the categories below apply to most paid search accounts:
| Category | Example terms |
|---|---|
| Price-sensitive | free, cheap, discounted, torrent, crack |
| Job and career | job, jobs, salary, hiring, internship, resume |
| Education | course, tutorial, training, class, certification, degree |
| Research only | what is, definition, examples, history, vs |
| Used or unofficial | used, second hand, reddit, reviews only, alternative |
Do not over-build this list on day one. Add categories that clearly do not convert for you, then let real Search Terms data fill in the rest. A too-aggressive starter list can suppress legitimate queries you have not seen yet.
How Often Should You Maintain Your Negative List?
Treat negative management as a weekly habit, not a launch task. New queries appear constantly as Google expands match types and users phrase searches in new ways. A useful cadence: review the Search Terms report every week for active campaigns, add confirmed irrelevant terms, and audit shared lists monthly to remove any negative that is now blocking a converting query. Seasonal businesses should tighten before peak periods and loosen afterward. The accounts that see the biggest waste reduction are the ones where a marketer owns the list rather than setting it once.
What Are the Most Common Negative Keyword Mistakes?
- Over-blocking with broad negatives: excluding a common word can suppress queries that actually convert.
- Never reviewing the Search Terms report: the single biggest source of wasted spend is ignorance of what you are paying for.
- Conflicting positives and negatives: a term cannot both trigger and suppress an ad, so check for overlaps when volume drops.
- One-and-done setup: lists decay as the auction evolves, so static lists quietly lose efficiency.
- Ignoring match-type expansion: with broad match active, a weak negative list lets Google chase irrelevant queries you never intended to buy.
How Do Negative Keywords Affect Quality Score and Cost per Click?
Negative keywords improve your account health in two linked ways. By blocking irrelevant searches, they raise your click-through rate because the clicks you do pay for come from better-matched queries, and CTR is a direct Quality Score input. A higher Quality Score then lowers your cost per click and can improve ad position at the same bid. The second effect is pure waste removal: every irrelevant click you block is budget freed for a high-intent search. Accounts that maintain negatives see the benefit compound because the auction rewards relevance continuously, so a small weekly habit pays back across the whole campaign.
Frequently Asked Questions
What Are Negative Keywords in Google Ads?
Negative keywords are search terms you add to a Google Ads account so your ads will not show when someone uses those words. They prevent your ads from appearing on irrelevant queries and keep your budget focused on high-intent searches.
What Is the Difference Between Broad, Phrase, and Exact Negative Keywords?
Broad negative keywords block any search that includes all your negative terms in any order. Phrase negative keywords block searches that include your negative terms in the exact order with words before or after. Exact negative keywords block only the precise search phrase you specify.
Where Should I Add Negative Keywords: Account or Campaign Level?
Add shared negative keyword lists at the account level when the same exclusions apply across many campaigns, such as generic or competitor terms. Add campaign- or ad-group-level negatives when an exclusion is relevant only to one campaign's intent or offer.
How Do I Find Negative Keywords in Google Ads?
Open the Search Terms report to see the actual queries that triggered your ads, then add irrelevant ones as negatives. Also mine competitor conquesting terms, industry-irrelevant words, and free or job-seeking modifiers that attract low-intent clicks.
How Many Negative Keywords Should I Have?
There is no fixed number; the right count depends on your market and match-type strategy. Most mature accounts carry dozens to a few hundred negatives. Add them continuously from the Search Terms report rather than aiming for a specific total.