2026-07-27

Google Ads Wasted Spend: How to Audit the Search Terms Report and Stop the Leak

You look at your Google Ads account and the spend number keeps climbing, but conversions aren't moving with it. Somewhere in your search terms, the platform is matching your ads to queries that have nothing to do with what you sell — and nobody's caught it yet.

Why this happens

Wasted spend on irrelevant search terms almost always comes down to one of these, in order of frequency:

• Broad match without enough negative keyword coverage. Broad match relies on Google's matching logic, and that logic will happily expand into tangential or unrelated queries if you haven't told it not to.
• Phrase match drift. Even phrase match keywords can match against longer queries that include irrelevant intent words ("free," "jobs," "DIY," "vs," competitor names) around your core phrase.
• No negative keyword list applied at the account or campaign level. Many accounts build negatives once and never maintain a shared list, so every new campaign starts from zero.
• Auto-applied recommendations or automatically added keywords that expanded targeting without a human review pass.
• Search Partners or Display expansion left on for a campaign type where it's pulling in low-quality query matches.
• Stale audit cadence. The search terms report was reviewed once at launch and never again, so three months of query drift went unnoticed.

Fix, step by step

1. In Google Ads, open Campaigns > Insights and reports > Search terms (or the Search terms report under Reports). Set the date range to at least the last 30-90 days depending on your spend volume.
2. Add the Conversions and Cost columns if they're not already visible, then sort by Cost descending.
3. Filter or scan for search terms with Cost above your average CPA (or a fixed threshold like $20-$50) and 0 conversions. These are your primary leak candidates.
4. For each flagged term, judge relevance manually — don't just cut on cost alone. A $40 spend with 0 conversions on a clearly irrelevant term is an easy negative. A relevant term with 0 conversions but low volume may just need more time or a landing page fix.
5. Select the irrelevant terms and use Add as negative keyword. Decide the match type (phrase or exact) and the level (campaign or ad group) based on whether the irrelevance is isolated or systemic.
6. For patterns that repeat across campaigns (job seekers, "free," "cheap," competitor names, DIY intent), build or update a shared negative keyword list and apply it account-wide via Tools and Settings > Shared Library > Negative keyword lists.
7. Check the Search Partners setting on the affected campaign(s). If a disproportionate share of wasted spend traces to Search Partners impressions, consider disabling it for that campaign.
8. Review any Auto-applying recommendations in the account (under Recommendations settings) and turn off auto-apply for keyword or targeting expansion if it's been adding queries you didn't approve.
9. Set a recurring calendar reminder — weekly for high-spend accounts, biweekly or monthly for smaller ones — to re-run this same search terms pull. Wasted spend creeps back if the audit isn't repeated.

Copy-paste negative keyword audit checklist

GOOGLE ADS SEARCH TERMS AUDIT — WEEKLY CHECKLIST

[ ] Pulled Search Terms report, last 30 days, sorted by Cost desc
[ ] Flagged all terms with Cost > $___ (set your threshold) AND Conversions = 0
[ ] Reviewed each flagged term for relevance (not just cost)
[ ] Added irrelevant terms as negatives at correct level:
    - Campaign-level negative: for isolated, one-off irrelevant terms
    - Shared negative list: for recurring patterns across campaigns
[ ] Common junk-term categories checked and negated where relevant:
    - "free"
    - "jobs" / "careers" / "salary"
    - "cheap" / "diy"
    - competitor brand names
    - "reviews" / "vs" / "alternative" (if not your intent)
[ ] Checked Search Partners setting on flagged campaigns
[ ] Reviewed Recommendations page for auto-applied keyword/targeting changes
[ ] Logged total wasted spend identified this audit: $______
[ ] Set next audit date: __________

How to verify it worked

Two weeks after applying negatives, re-pull the same search terms report and compare. You should see the previously flagged queries either disappear entirely or drop to zero impressions under that campaign. Check your account-level Cost and Conversions trend over the same window — cost per conversion should trend down even if total spend stays flat, since budget is being redirected away from dead queries toward ones that convert. If wasted terms keep resurfacing under new phrasing, tighten your match types or expand the shared negative list.

If you're running this audit across several client accounts, doing it manually every week gets tedious fast — which is exactly the kind of repetitive triage Next Action Analyst is built to flag automatically, so you spend your time cutting negatives instead of hunting for them.