Picture this: you’re selling premium leather handbags, and you’ve just spent £200 on advertising… only to discover that half your clicks came from people searching for “cheap plastic bags” and “free shopping bags.” Your budget’s gone, your ACoS is astronomical, and you haven’t made a single sale from those clicks.
This is exactly why negative keywords exist, and why they’re possibly the most underutilised tool in Amazon PPC. Whilst most sellers obsess over which keywords to target, the really savvy ones spend equal time deciding which searches to avoid.
What Are Amazon Negative Keywords in Amazon PPC Advertising?
Amazon negative keywords in Amazon PPC advertising prevent Amazon ads from appearing for specific search terms that sellers exclude, improving targeting precision and reducing wasted ad spend by up to 40% when irrelevant, low-converting queries are consistently filtered.
Think of them as bouncers at an exclusive club. Your regular keywords are the guest list – people you want to attract. Negative keywords are the people you’re specifically keeping out because they’re not a good fit, even if they might be interested in something vaguely related to what you’re offering.
For instance, if you sell professional-grade camera equipment, you might add “toy,” “kids,” “cheap,” and “disposable” as negative keywords. Sure, someone searching for “cheap toy camera for kids” is technically looking for a camera, but they’re absolutely not your customer. Why waste money showing them an ad for your £800 mirrorless camera body?
Why Do Amazon Negative Keywords Matter More Than Ever in 2026?
Amazon negative keywords in 2026 reduce wasted ad spend by blocking irrelevant search terms, improving campaign conversion rates, and protecting profitability as average cost-per-click rates continue rising across Amazon Advertising, where audited accounts often show 40% of spend misallocated without proper exclusions.
Without negative keywords, broad and phrase match campaigns bleed budget on irrelevant searches. We’ve audited accounts where 40% or more of ad spend went to search terms that never converted – not because the ads were poor, but because the searches were fundamentally mismatched with the product.
Negative keywords also improve your overall campaign health by boosting your conversion rate. When you filter out low-intent searches, a higher percentage of people who click your ads actually buy. Amazon’s algorithm notices this and rewards well-performing campaigns with better ad placements and sometimes even lower CPCs.
What Types of Amazon Negative Keywords Should Sellers Use?
Amazon negative keywords include negative phrase match and negative exact match types, enabling sellers to block either specific phrases in exact order or single precise search terms, creating controlled traffic filtering that prevents irrelevant clicks while preserving relevant variations.
Negative Phrase Match
When you add a negative phrase match keyword (let’s say “for kids”), your ad won’t show for any search containing that exact phrase in that order. So “water bottles for kids” and “lunch boxes for kids” would both be blocked, but “kids water bottles” might still trigger your ad because the phrase order is different.
Negative phrase match is useful when there’s a specific phrase that consistently indicates irrelevant traffic but you don’t want to be overly restrictive.
Negative Exact Match
Negative exact match only blocks the precise search term you specify. If you add “toy camera” as a negative exact match, that specific search is blocked – but “kids toy camera” or “toy cameras” could still trigger your ads.
This is helpful when you want surgical precision, perhaps blocking a single problematic search term without affecting related searches that might actually be relevant.
In most cases, negative phrase match gives you more bang for your buck because it casts a wider (but still controlled) net. However, there are situations where you’ll want the precision of negative exact match to avoid blocking good traffic accidentally.
How Do You Find Amazon Negative Keywords Using Search Term Reports?
Amazon negative keywords can be identified through Amazon Search Term Reports, which display every customer query triggering ads and reveal non-converting search terms with measurable data such as 20–30 clicks or £50 in spend without sales, signalling exclusion opportunities.
Search Term Reports
Your Search Term Report (found in your Amazon Advertising console under Campaign Manager > Reports) shows every search query that triggered your ads. This is ground zero for negative keyword research.
Export this report regularly (we’d suggest weekly for active campaigns) and analyse it with a critical eye. Look for:
- Search terms with clicks but zero sales
- Terms with decent clicks but conversion rates well below your campaign average
- Obviously irrelevant searches that somehow triggered your ads
- Searches containing words like “cheap,” “free,” “used,” or “rental” if you sell new premium products
- Competitor brand names (more on this in a moment)
- Searches clearly looking for a different product category altogether
Sort by spend to identify your most expensive losers first. A search term that cost you £50 with no conversions deserves immediate attention.
| Metric | Threshold to Review | Why It Matters | Recommended Action |
|---|---|---|---|
| Clicks | 20–30+ clicks | Indicates sufficient statistical significance | Evaluate for conversion performance |
| Spend | £50+ with no sales | Signals high-cost non-converting term | Add as negative keyword immediately |
| Conversion Rate | 50% below campaign average | Shows underperformance vs baseline | Investigate intent mismatch |
| ACoS | 2x target ACoS | Indicates unprofitable traffic | Consider negative phrase or exact |
| Irrelevant Modifiers | Words like “free,” “DIY,” “cheap” | Signals low purchase intent | Add as negative phrase match |
Look for Patterns, Not Just Individual Terms
Don’t just add individual bad search terms as negatives – look for common threads. If you keep seeing irrelevant searches containing “DIY,” “homemade,” or “tutorial,” you might want to add these as negative phrase matches rather than playing whack-a-mole with individual search terms.
Similarly, if you sell adult products and keep getting searches with “kids,” “children,” “toddler,” and “baby,” you’ll want all of these as negatives. Create a comprehensive list rather than reacting one term at a time.
Consider Customer Intent Signals
Certain words signal low purchase intent or bargain-hunting behaviour. Terms like:
- “cheap,” “cheapest,” “budget,” “affordable”
- “free,” “free shipping,” “discount”
- “reviews,” “comparison,” “vs”
- “how to,” “DIY,” “tutorial”
These aren’t universally bad (someone searching “affordable quality headphones” might still convert), but they often indicate early research phase or extreme price sensitivity. If your margins are tight, you might want to negative out some of these intent signals.
What Steps Are Involved in Finding Amazon Negative Keywords Using Search Term Reports?
Finding Amazon negative keywords using Search Term Reports requires systematic analysis of search queries with at least 20–30 clicks or £50 in spend without conversions, enabling data-driven exclusion decisions that reduce wasted ad spend by up to 40%.
Amazon negative keyword optimisation follows a structured evaluation process using measurable campaign performance data.
- Export reports weekly for active campaigns.
- Sort search terms by highest spend first.
- Identify search terms with 20–30 clicks and zero sales.
- Flag search terms exceeding £50 spend without conversion.
- Compare conversion rates against campaign average baseline.
- Detect recurring modifiers such as “cheap” or “DIY.”
- Classify exclusions as negative phrase or exact match.
- Apply validated negatives at campaign or ad group level.
How Do You Use Amazon Negative Keywords at Campaign and Ad Group Level?
Amazon negative keywords can be applied at campaign level to block irrelevant traffic across all ad groups or at ad group level for granular filtering, enabling structured exclusion management that reduces wasted spend by 20–40% when consistently implemented.
Campaign Level: Navigate to your campaign in Campaign Manager, click the “Negative keywords” tab, and add your terms there. Campaign-level negatives apply to every ad group within that campaign.
Ad Group Level: For more granular control, add negatives at the ad group level. This is useful when different ad groups target different customer segments or product variations.
Our recommendation? Start with campaign-level negatives for obviously irrelevant terms (wrong product category, competitor brands, etc.). Then use ad group-level negatives for more nuanced filtering based on the specific products in each ad group.
Don’t Forget Auto Campaigns
Your automatic campaigns often generate the most surprising (and sometimes horrifying) search terms because Amazon’s algorithm is exploring broadly. These campaigns desperately need negative keyword management. Harvest bad terms from auto campaigns and add them as negatives to prevent continued waste.
What Are the Most Common Amazon Negative Keyword Mistakes?
Common Amazon negative keyword mistakes include blocking search terms before achieving statistical significance of 20–30 clicks, failing to transfer exclusions to new campaigns, and accidentally filtering branded terms, resulting in lost visibility and reduced campaign efficiency.
Being Too Aggressive Too Quickly
We’ve seen sellers get overzealous and block terms that seemed irrelevant but actually had potential. A search term with 5 clicks and no sales yet isn’t necessarily bad – it might just need more time. Look for statistical significance (at least 20-30 clicks) before making judgements.
Forgetting About Negatives When Scaling
As you expand campaigns or create new ones, remember to apply your negative keyword learnings. Many sellers build robust negative lists for existing campaigns but forget to add them to new campaigns, forcing them to learn the same expensive lessons twice.
Blocking Your Own Brand Name
This seems obvious, but we’ve seen it happen. Double-check that you’re not accidentally blocking searches for your own products or brand name. This usually happens when sellers bulk-add negatives without careful review.
How Do You Build a Master Amazon Negative Keyword List?
A master Amazon negative keyword list consolidates exclusions across categories such as wrong product type, wrong customer segment, competitor brands, and low-intent terms, enabling faster campaign launches and reducing early-stage wasted spend by 20–40%.
Categorise your negatives logically:
- Wrong product type
- Wrong customer segment (kids, commercial, industrial, etc.)
- Low-intent research terms
- Price-sensitive language
- Competitor brands
When launching new campaigns, you can quickly apply relevant negatives from your master list rather than starting from scratch each time. This dramatically accelerates campaign maturity and reduces wasteful spending in those crucial early days.
When Should Sellers Review Amazon Negative Keywords for Ongoing Optimisation?
Amazon negative keywords should be reviewed weekly or biweekly using updated Search Term Reports, ensuring emerging irrelevant queries are excluded promptly and maintaining long-term campaign efficiency as customer language and competition evolve.
Set a calendar reminder to review your Search Term Report weekly (or at least biweekly for smaller accounts). Make negative keyword optimisation part of your regular campaign maintenance, just like bid adjustments and budget allocation.
The cumulative effect of consistent negative keyword refinement is substantial. Over months and years, you build increasingly efficient campaigns that spend money only on genuinely promising searches.
How Can Amazon Negative Keywords Help You Take Control of PPC Spend?
Amazon negative keywords help sellers control PPC spend by eliminating irrelevant traffic, improving conversion rates, and reducing wasted ad budget by 20–40%, creating higher return on ad spend without increasing advertising costs.
If you’re tired of watching your budget disappear on irrelevant clicks, or you simply don’t have time to regularly optimise your campaigns, we can help. Our team provides full-service Amazon account support including expert PPC management, negative keyword optimisation, and comprehensive campaign strategy – so get in touch with us today and find out how we can help you help your business.
Frequently Asked Questions About Amazon Negative Keywords
What are Amazon negative keywords used for in PPC campaigns?
Amazon negative keywords prevent Amazon ads from appearing for irrelevant search terms, improving targeting efficiency and reducing wasted ad spend by up to 40%. Amazon negative keywords increase conversion rates by filtering low-intent traffic before ad impressions occur.
How often should Amazon negative keywords be reviewed?
Amazon negative keywords should be reviewed weekly for active campaigns using updated Search Term Reports containing performance data. Amazon negative keywords require ongoing monitoring because customer search behaviour and competition evolve continuously.
What is the difference between negative phrase match and negative exact match?
Amazon negative phrase match blocks search queries containing a specified phrase in exact order, while Amazon negative exact match blocks only one precise search term. Amazon negative phrase match generally filters broader variations than negative exact match.
How many clicks should a search term receive before becoming a negative keyword?
Amazon negative keyword decisions should be based on search terms receiving at least 20–30 clicks without a sale. Amazon negative keyword optimisation relies on statistically meaningful performance thresholds rather than isolated data points.
Can Amazon negative keywords improve conversion rates?
Amazon negative keywords improve conversion rates by eliminating irrelevant traffic and concentrating budget on high-intent search queries. Amazon negative keywords frequently increase overall campaign efficiency by reducing non-converting clicks.
Should competitor brand names be added as Amazon negative keywords?
Amazon negative keywords may include competitor brand names when campaigns do not intentionally target competitor audiences. Amazon negative keywords reduce wasted spend when competitor searches generate low conversion rates.
Do Amazon automatic campaigns require negative keywords?
Amazon negative keywords are essential for automatic campaigns because algorithmic targeting generates broad exploratory traffic. Amazon negative keywords prevent repeated spend on irrelevant queries identified in Search Term Reports.
What impact do Amazon negative keywords have on ACoS?
Amazon negative keywords lower Advertising Cost of Sale by reducing wasted clicks and concentrating budget on converting searches. Amazon negative keywords frequently decrease ACoS by eliminating high-spend non-performing search terms.
