Every click you pay for that was never going to convert is money you can't spend on a real buyer. Negative keywords are the simplest and most reliable way to stop that leak, and in 2026, with broad match, AI Max and Performance Max stretching your ads across ever more queries, they matter more than they did in the AdWords era.
This guide covers how negative keywords work, how their match types differ from regular keywords, where to apply them, and how to use them in Search, Google Shopping and Performance Max (PMax).
What Are Negative Keywords?
A negative keyword tells Google which searches should not trigger your ads.
If you sell premium espresso machines, people searching "espresso machine repair" or "free espresso machine" are unlikely to buy. Add "repair" and "free" as negatives, and your budget stays focused on shoppers with real purchase intent.
What negative keywords do for you:
- Cut wasted spend on irrelevant clicks
- Can improve click-through rate and conversion rate when exclusions remove irrelevant searches
- Keep traffic cleaner, which supports better ad relevance
- Stop your own campaigns from competing for the same searches
- Act as a counterweight to automation (broad match, AI Max, PMax) that expands reach on its own
The Three Negative Match Types
Negative match types do not behave like regular keyword match types. This is where most mistakes happen.
| Match type | Syntax | What it blocks | Example |
|---|---|---|---|
| Negative broad | free | Searches containing all the negative's words, in any order | Negating red shoes blocks "red running shoes" and "shoes red", but not "shoes" alone |
| Negative phrase | "free trial" | Searches containing the phrase in that exact order, with other words allowed around it | Blocks "free trial espresso machine", not "trial free" |
| Negative exact | [espresso machine repair] | Only the exact search, with no extra words | Blocks "espresso machine repair" but not "espresso machine repair guide" |
Three rules to remember:
- Negatives don't expand to close variants. Google documents that negatives do not expand to synonyms or singular/plural variants:
shoedoes not excludeshoes. Casing and misspellings are handled automatically; add the other variants you intend to block. See the current match rules. - Broad negatives need every word present. A multi-word broad negative only blocks searches containing all of its words.
- Don't over-block. Before adding a negative, ask whether the word could also appear in a buyer's search. Words like "free" or "cheap" are irrelevant for some businesses and valuable for others.
Tip: Use broad negatives only for words that are irrelevant in any context, such as "jobs", "careers", "salary" or "resume". For ambiguous words, use phrase or exact negatives so you cut precisely.
Where to Add Negative Keywords
You can set negatives at several levels:
- Ad group level: affects only that ad group. Best for fine-grained control.
- Campaign level: the most common placement.
- Shared negative keyword lists: build once, apply to many campaigns. A single list can hold up to 5,000 keywords.
- Account level: applies across the account and covers Search and Shopping inventory, including Performance Max. Currently capped at 1,000 account-level negatives.
A simple structure that works:
- Account-level negative keywords for universal junk: jobs, careers, free downloads, DIY, and similar.
- Campaign-level negatives for product or theme separation.
- Ad group negatives only for precise routing between ad groups.
Most accounts under-use account-level negatives. Setting one up is often the fastest win.
Negative Keywords in Search Campaigns
1. Mine the Search Terms report
The Search Terms report is the most trustworthy source of new negatives. Look for queries that spent money without converting and clearly don't match your offer, then add them at the right level and match type.
Suggested review rhythm:
- New campaigns: weekly for the first few weeks
- Stable accounts: at least monthly
- Accounts using broad match or AI Max: weekly
2. Start with common exclusion themes
Adapt this to your business. Don't copy it blindly.
- Job seekers: jobs, careers, salary, resume, internship
- Freebie seekers: free, crack, torrent, download (if you don't sell these)
- Learners: tutorial, how to, DIY, definition, course, thesis
- Wrong price tier: used, refurbished, wholesale, cheap (if you sell premium)
- Unwanted brands or competitors: depends on your strategy
3. Separate brand and non-brand traffic
If you run both brand and non-brand campaigns, add your brand terms as negatives (typically exact or phrase) in the non-brand campaigns. That keeps the two from competing for the same queries and keeps your reporting clean.
4. Balance automation with control
Broad match and AI Max deliberately reach for queries that are thematically related to your keywords, and some of those are commercially useless. A well-maintained negative list is how you keep Smart Bidding pointed at buyers. AI tools can help you spot candidates faster, but the final exclusion decision should be made by a person who has checked the conversion data.
Google Shopping Negative Keywords
In Shopping, you don't bid on keywords. Google matches your products to searches using your product feed (titles, descriptions, categories, GTINs). That gives you less control over traffic, which makes negative keywords one of your strongest levers.
Core practices
- Add campaign-level negatives for clearly irrelevant searches.
- Review the Search Terms report regularly. Shopping often matches queries you wouldn't expect, such as "product + manual", "product + accessories" or "product + review".
- Fix the feed first. Negatives are a repair tool. Accurate, specific product titles and attributes prevent many bad matches in the first place.
Common Shopping negative themes
- Accessories and parts: case, replacement, adapter, part (if you sell only the main product)
- Instructional: manual, instructions, tutorial
- Non-purchase intent: review, comparison, repair, recycle
- Ambiguous product words that can mean something else
The classic priority + negatives structure (standard Shopping)
Standard Shopping campaigns have a campaign priority setting (low, medium, high). When the same product sits in several campaigns, the highest-priority campaign gets the first chance to serve. Combine that with negatives to bid differently on different kinds of searches:
A query-routing setup can use a high-priority, low-bid campaign for generic searches, with brand and model terms excluded there so they can reach a lower-priority campaign with higher bids. Negatives must be placed in the higher-priority campaign to route those terms downward. Priority determines which eligible campaign supplies the bid, not how valuable a query is. Budget availability can change routing, so validate search terms rather than assuming this structure guarantees it. See Google's priority rules.
Troubleshooting: why negatives seem not to work
- Priority conflicts. When a product is in campaigns with different priorities, the negatives of the winning (higher-priority) campaign are the ones that apply.
- Wrong match type. A broad negative may be too vague, or an exact negative too narrow.
- No variants. Remember to add intended singular, plural and synonym variants; casing and misspellings are handled automatically.
- Not enough time. Check the Search Terms report again after a few days of traffic.
Note: The priority structure above applies to standard Shopping campaigns. It does not apply to Performance Max.
Negative Keywords in Performance Max and AI Max
Performance Max used to be a black box with almost no keyword control. That has changed. Google has expanded negatives in PMax in stages, so confirm current limits in the Google Ads Help Center before you build around them.
What has changed:
- Campaign-level negatives: Google currently documents up to 10,000 per PMax campaign.
- Account-level negatives: apply across Search and Shopping inventory, including PMax.
- Shared lists in PMax: can be selected when adding PMax campaign negatives.
- Brand exclusions: a separate control for keeping PMax away from specific brand searches.
What negatives in PMax do and don't cover:
- They apply to Search and Shopping inventory only.
- They do not control Display or YouTube. For those, use placement exclusions and content exclusions.
- You can't set classic keyword negatives at the asset group level.
Practical PMax checklist:
- Put universal junk in account-level negatives.
- Add campaign-specific negatives where needed.
- Use brand exclusions to keep branded searches in your brand campaign.
- Review the PMax Search Terms insights regularly.
With AI Max for Search, the same logic applies. The automation reaches further, so your negatives, account-level negatives and brand controls carry more weight.
Negative Keyword Best-Practice Checklist
- Review the Search Terms report within a week of launching any new campaign
- Maintain an account-level exclusion set for universal exclusions
- Add singular, plural and synonym variants as needed; Google handles casing and misspellings
- Check that a word can't appear in a buyer's query before negating it
- Use phrase or exact negatives for ambiguous words
- Separate brand and non-brand traffic with negatives
- For standard Shopping, use priorities and negatives together, and check priority conflicts when negatives fail
- For PMax, combine account-level negatives, campaign negatives and brand exclusions
- Keep a log of what you added and why, so you can reverse bad calls
Common Mistakes
- Adding negatives and never reviewing them. A negative that was right last quarter can block good traffic now.
- Assuming negatives catch synonyms or plurals. They don't.
- Using broad negatives on ambiguous words. One careless broad negative can wipe out an entire converting query family.
- Ignoring Shopping. Because you can't pick keywords there, negatives are your main steering wheel.
- Treating PMax as uncontrollable. You now have real controls. Use them.
Stop Paying for Clicks That Were Never Going to Convert
Negative keywords look simple, but doing them well takes ongoing search-term analysis, a clear view of your offer, and a plan that spans Search, Shopping and Performance Max. Too few negatives and your budget leaks. Too many and you block revenue.
JuicyTraffic investigates landing-page click quality by campaign, source and placement using a tracking link and an on-site probe. Use that evidence alongside search-term and conversion analysis; it does not build negative keyword lists or manage your campaigns. For the broader review, see our PPC audit services checklist.
Limits and features in Google Ads change often. Verify current numbers and availability in the Google Ads Help Center before publishing or building a strategy around them.