Most Google Ads wasted spend sits in one place: the search terms report. These are the queries you paid for that were never going to turn into a customer. A focused 30-minute search terms audit, done every week or two, finds most of it. You don’t need a new tool or a restructure, just the report, a sort order and a few rules for what to cut.
Key Takeaways
- Start with the search terms report, sorted by cost, not clicks.
- Sort every expensive query into one of four buckets: cut, redirect, fix or scale.
- Add negatives at the right level (account, campaign or ad group) and with the right match type.
- Judge a query against your break-even ROAS or target cost per lead, not against a gut feeling.
What counts as wasted spend
Wasted spend is money spent on clicks with no realistic path to revenue. That is not the same as “spend with no conversions yet”. A high-intent query like managed IT services pricing can go 40 clicks without a lead and still be worth keeping, because the intent is right and the problem is somewhere else, usually the landing page.
Real waste looks like this:
- Wrong audience: job seekers, students, people looking for free templates or courses.
- Wrong product: your ad shows for something you don’t sell, often because a broad match keyword stretched too far.
- Wrong stage: research queries that cost as much as buying queries but almost never convert for your business.
Before you start: check your conversion tracking
A search terms audit is only as good as the conversions behind it. If your account counts page views, button clicks or duplicate form fills as conversions, the report will tell you that junk queries “convert” and you’ll end up protecting them.
Check three things first:
- The primary conversion action is a real lead or a real purchase, not a micro-step.
- Each lead or order is counted once.
- Conversion value is set, even if it’s an estimate per lead type.
If any of these is shaky, fix tracking first. An audit on bad data does more harm than no audit.
Step 1: Pull the right report
In Google Ads, go to Insights and reports → Search terms. Google’s own guide to the search terms report explains every column if you need it.
Set it up like this:
- Date range: the last 30 days for a busy account, the last 90 days for a small one.
- Columns: cost, clicks, conversions, conversion value, cost per conversion, match type and the keyword that triggered the term.
- Campaigns: start with Search campaigns. Performance Max shows less query detail, so audit it separately.
Step 2: Sort by cost, not by clicks
Clicks tell you what’s popular. Cost tells you what’s expensive. Sort by cost, highest first, and work down until the queries are too small to matter. In most accounts, the top 50 to 100 search terms by cost cover most of the money.
Step 3: Put every expensive query in one of four buckets
| Bucket | What it looks like | What to do |
|---|---|---|
| Cut | Jobs, salary, free, course, PDF, unrelated products | Add as a negative keyword |
| Redirect | Right intent, wrong campaign or ad group | Negative it where it is, add it where it belongs |
| Fix | Right intent, poor results | Check the ad, landing page and bid before cutting |
| Scale | Converts at or better than target | Add as an exact match keyword with its own ad |
The “Fix” bucket is where most marketers lose money twice: they cut a good query because the landing page was weak, then pay more to win the same buyer back later.
Step 4: Add negatives at the right level
Where you add a negative matters as much as what you add.
- Account level (shared negative list): words that are never right for your business. For most B2B and D2C brands that means jobs, careers, salary, internship, free download, course, PDF.
- Campaign level: to stop two campaigns competing for the same query, for example keeping brand terms out of non-brand campaigns.
- Ad group level: to route a query to the ad group with the best-matching ad.
Watch the match type. Negative keywords don’t automatically cover close variants or synonyms the way positive keywords do, so you may need the singular and plural versions. Google’s guide to negative keywords covers the details.
Step 5: Check each query against your numbers
“This looks expensive” is not a decision rule. Before you cut a query that has some conversions, compare its return with your break-even ROAS (for e-commerce) or your break-even cost per lead (for B2B lead generation). If a query earns less than it costs to serve the customer, it’s waste even though it converts.
If you don’t know your break-even number yet, work it out before your next audit. Everything else gets easier once you have it.
Mistakes that create more waste
- Negating single words that are too broad. Adding free as a broad negative can block free trial or free shipping, which may be your best queries.
- Cutting on too little data. Three clicks and no conversion is not a pattern. Wait for spend of roughly one to two times your target cost per conversion before deciding.
- Ignoring brand traffic inside Performance Max. PMax will happily bid on your own brand name and report a great ROAS. Check how much of its results come from people who were already looking for you.
- Running broad match without smart bidding. Broad match relies on conversion signals to stay on track. Without them it drifts.
How often to run a search terms audit
- Spending more than ₹3 lakh a month: every week.
- ₹50,000 to ₹3 lakh a month: every two weeks.
- Under ₹50,000 a month: once a month, over a 60–90 day window so there’s enough data.
Put it in your calendar as a fixed 30-minute block. The audits that get skipped are the ones without a slot.
Want a second pair of eyes?
A search terms review is the first thing I do in every audit, because it shows quickly whether an account is leaking money. If you’d rather have it done for you, see how I run Google Ads management, or book a free 30-minute audit.
Frequently Asked Questions
How much wasted spend is normal in Google Ads?
There’s no fixed healthy number, because it depends on match types, how broad the keywords are and how often the account is cleaned. A better question is whether the share of spend on irrelevant queries is going down from one audit to the next.
Should I use broad match keywords at all?
Yes, if conversion tracking is solid and you use smart bidding like Target CPA or Target ROAS. Broad match finds queries you wouldn’t think of. Without good conversion data, it’s the fastest way to waste budget.
Can I find wasted spend in Performance Max?
Partly. Performance Max shows less query detail than Search campaigns, but you can still review its search term insights, add account-level negative keywords and exclude brand terms. Audit it separately from your Search campaigns.
