Lyra Team 
Most Google Ads accounts are bleeding money on irrelevant clicks, and the advertisers running them have no idea. Negative keywords are the single most underused lever in paid search, yet they can cut wasted spend by 15-30% when applied systematically. The problem is not that people ignore negatives entirely — it is that they apply them reactively instead of building a real strategy.
The Cost of Doing Nothing
Every search term report contains queries that have zero chance of converting. Informational searches, competitor brand terms you cannot win, job seekers, students doing research — these clicks cost real money. On accounts spending $10,000 per month, we routinely find $1,500 to $3,000 in monthly waste from missing negative keywords. That is budget that could be redirected toward queries that actually convert.
Build a Negative Keyword Foundation
Before you touch your search term reports, build a foundational negative keyword list that applies to nearly every account:
- Job-related terms: “jobs,” “careers,” “hiring,” “salary,” “resume,” “interview”
- Educational intent: “what is,” “definition,” “example,” “tutorial,” “course,” “certification”
- Free seekers: “free,” “cheap,” “discount,” “coupon” (unless your business model supports these)
- DIY intent: “how to,” “template,” “guide,” “DIY” (for service-based businesses)
- Wrong audience: “review,” “reddit,” “forum,” “complaint”
Apply these as an account-level negative keyword list so they protect every campaign simultaneously.
Mine Your Search Term Reports Weekly
Monthly search term reviews are not frequent enough. Google can burn through significant budget on a bad query pattern in just a few days, especially in broad match and Performance Max campaigns.
A systematic weekly process:
- Sort by cost descending to find the biggest offenders first
- Filter for queries with spend above your target CPA but zero conversions
- Look for patterns, not just individual terms — if “repair” shows up across 15 variations, add it once as a phrase match negative rather than adding 15 exact match negatives
- Check match type behavior: broad match campaigns need more aggressive negative keyword coverage than exact match campaigns
Use Negative Keyword Match Types Strategically
Most advertisers default to exact match negatives, which is the least effective approach. Each match type serves a different purpose:
- Broad match negatives block any query containing all the negative keyword terms in any order. Use these for concepts you want to exclude entirely, like “jobs” or “free.”
- Phrase match negatives block queries containing the exact phrase in order. Use these for multi-word patterns like “how to fix” or “near me” (if you do not serve local customers).
- Exact match negatives block only the precise query. Reserve these for specific terms that overlap with legitimate traffic — for example, blocking “apple” as exact match if you sell apple products but not Apple electronics.
Organize with Shared Negative Keyword Lists
Google Ads allows up to 20 shared negative keyword lists, each holding up to 5,000 terms. Use this structure:
- Universal negatives — terms that apply to every campaign (jobs, free, DIY)
- Industry-specific negatives — terms irrelevant to your vertical
- Competitor negatives — competitor brand names you do not want to bid on
- Campaign-specific negatives — terms that conflict with a particular campaign’s intent
Shared lists update across all linked campaigns simultaneously, which saves significant time compared to managing negatives at the campaign level.
Watch for Negative Keyword Conflicts
One of the most common mistakes is adding negative keywords that accidentally block your own target queries. If you add “blue” as a broad match negative but sell blue widgets, you have just killed your best-performing keyword.
Prevention steps:
- Cross-reference new negatives against your active keyword list before adding them
- Use Google’s negative keyword conflict report (found under Keywords > Negative Keywords)
- Review campaigns after adding negatives to ensure impressions did not drop on intended keywords
Tools like Lyra can automate conflict detection during bulk negative keyword imports, flagging potential issues before they go live. This is particularly valuable when managing negatives across dozens of accounts where manual cross-referencing becomes impractical.
Measure the Impact
After implementing a negative keyword strategy, track these metrics over the following 2-4 weeks:
- Click-through rate should increase (fewer irrelevant impressions means a higher proportion of qualified clicks)
- Conversion rate should increase (fewer junk clicks in the denominator)
- Cost per conversion should decrease
- Impression share may decrease, which is fine — you are deliberately excluding low-value impressions
Negative keyword management is not glamorous work. But dollar for dollar, it is one of the highest-ROI activities in Google Ads management. Build the system, run it weekly, and let the compounding savings do the work.
