How to Stop Wasting Budget on Broad Match Keywords

Broad match keywords aren't inherently the problem. The real issue is usually a search terms report nobody's looked at in a month, negatives that never got added, or a bidding strategy that's flying blind. This guide walks you through finding exactly where broad match is burning your budget and fixing it, step by step, without switching broad match off. You'll need a Google Ads account with 2-4 weeks of search terms data and edit access to the campaigns you're reviewing.

Step 1: Pull the Search Terms Report and Sort by Spend

Start in Google Ads by going to Campaigns, then Search Terms. This report shows the actual queries people typed before your ad served, which is different from your keywords, the terms you bid on. A search term is what a real person searched; a keyword is what you told Google Ads to match against. Broad match keywords have the loosest connection between the two, which is exactly why this report matters more here than with phrase or exact match.

Filter the report down to the campaign or ad group where your broad match keywords live. If you're running a mix of match types in the same ad group, it helps to isolate broad match specifically so you're not mixing signal with noise.

Sort by cost, highest to lowest. Then add columns for conversions and conversion value so you can see, at a glance, which terms are eating budget without producing results. A term with $200 in spend and zero conversions is a very different story than a term with $200 in spend and four sales.

One mistake trips up a lot of advertisers here: reviewing only the last 7 days. Broad match matching patterns shift as Google's system learns from auction signals, and a week of data isn't enough to separate a real pattern from noise. Pull at least 2-4 weeks, longer if your account has lower daily spend. If you're managing a client account with modest volume, even 30-45 days might be needed before the data is reliable enough to act on.

By the end of this step you should have a sorted list of search terms with cost, conversions, and conversion value sitting side by side, ready for a closer look.

Step 2: Flag Search Terms That Are Draining Spend

With your sorted report in front of you, start flagging terms that show high cost paired with zero or few conversions relative to your account's average cost-per-acquisition (CPA). If your average CPA is $40 and a search term has burned $150 with no conversions, that's a candidate worth flagging.

Watch specifically for terms that are off-topic or only loosely related to what you're actually selling. Broad match uses semantic matching, meaning Google looks at the intent and context behind a search rather than requiring an exact word match. That's powerful when it works, but it can also pull in queries that technically relate to your keyword without matching your actual offer. For illustration: a broad match keyword like "running shoes" might trigger on a search like "running shoes for marathon training plans," which sounds related but could be someone researching a training program rather than shopping for shoes. That's a hypothetical example, not a guarantee of how any specific account will behave, but it's the kind of drift you're looking for.

As you flag terms, separate one-time anomalies from recurring junk. A term that shows up once with $15 in spend and no conversions might just be noise, not worth acting on. A term that shows up week after week with spend and no conversions is a genuine leak, and it's the recurring pattern that matters most for your negative keyword decisions in the next step.

Keep a running list as you go, even a rough one, noting the term, the spend, and whether it's a one-off or a repeat offender. This list becomes your action plan for Step 3.

Step 3: Add Negative Keywords at the Right Level

A negative keyword tells Google Ads not to show your ad for that search term. It's the opposite of a regular keyword, which tells Google when to show your ad. Once you've flagged the recurring junk terms from Step 2, the next decision is where to place the negative: ad group, campaign, or account level.

If the irrelevant term is specific to one ad group's theme, add it there. If it's showing up across several ad groups within a campaign, move it to a campaign-level negative list. If it's junk that has nothing to do with your business at all, an account-level negative list saves you from repeating the same exclusion across every campaign.

Match type matters here too. Use phrase or exact match negatives rather than broad negatives whenever possible, since a broad negative can block more traffic than you intended, including legitimate searches that happen to share a word with the junk term you're trying to exclude. Google Ads Help outlines how negative keyword match types affect what gets blocked, so it's worth checking current match-type behavior in your account before applying a negative broadly across a campaign.

Doing this manually usually means copying terms out of the report into a spreadsheet, cleaning them up, and pasting them back into a negative keyword list, which eats up time you could spend on strategy. Keywordme, a Chrome extension that works directly inside the Google Ads Search Terms Report, lets you add a negative keyword with one click right from the report itself. No spreadsheet, no tab-switching, just flag the term and exclude it on the spot. For anyone doing this cleanup weekly, that difference adds up fast.

Step 4: Promote Proven Search Terms to Their Own Keywords

Not every search term broad match surfaces is bad news. While you're in the report, look for terms with strong performance: decent volume, conversions at or below your target CPA, and solid conversion value. These are search terms broad match found for you organically, and they're worth locking in.

Add these winning search terms as their own keywords, using phrase or exact match. This gives you direct control over bidding for that specific query instead of leaving it entirely up to broad match's algorithmic interpretation. If a search term is reliably converting, you don't need Google guessing whether to show your ad for it every time, you want it locked in as a keyword you actively manage.

This also reduces how much weight your account puts on broad match's judgment for your best-performing queries. Broad match is still useful for discovery, finding new relevant searches you haven't thought of, but once a term proves itself, treating it as a dedicated keyword with its own bid and match type gives you tighter control over cost and placement.

Instead of manually adding these as new keywords, which usually means exporting the term, deciding on match type, and building it into your keyword list by hand, Keywordme lets you add a high-intent search term as a new keyword with the match type applied, all in one click, directly inside the Search Terms Report. It's the same idea as the negative keyword workflow in Step 3, just running in the opposite direction: instead of excluding, you're promoting.

Step 5: Strengthen Broad Match Signals Instead of Abandoning It

Google Ads Help notes that broad match depends heavily on bidding strategy and audience signals to stay relevant to your business. If those signals are weak or missing, broad match has less to work with, and that's usually when the irrelevant, budget-draining search terms start piling up. Fixing signals often does more for reducing waste than cleaning negatives alone.

First, check whether Smart Bidding is active on the campaign. Strategies like Target CPA (tCPA) or Target ROAS (tROAS) feed conversion data back into the auction, giving Google's system a much clearer picture of what a good outcome looks like for your account. Without that feedback loop, broad match is matching based on looser signals and more guesswork.

Second, look at audience signals in the ad group. Adding customer lists, similar segments, or other first-party audience data gives broad match additional context about who you actually want to reach, not just what words they typed. This narrows the semantic matching toward people who resemble your existing customers or site visitors.

The mistake to avoid here is running broad match on manual CPC with little to no conversion data feeding the account. This combination, loose match type plus a bidding strategy with no performance feedback, is where most of the wasted spend originates. Broad match without Smart Bidding and audience signals is essentially matching blind. If you're seeing consistent budget drain on broad match keywords, check this before assuming the match type itself is the problem.

Step 6: Set a Recurring Review Cadence to Catch New Waste

A one-time cleanup won't hold. Broad match matching shifts as Google's algorithms update and as your account accumulates new conversion data, which means new junk terms will surface even after you've cleared out the current batch. Put a weekly or biweekly search terms review on your calendar and treat it like any other recurring account task.

To know whether your cleanup work is actually paying off, track a simple metric over time: wasted spend as a percentage of total spend. Calculate it by adding up the cost of search terms with zero or low conversions relative to your CPA target, then dividing by total spend for the same period. If that percentage is trending down review over review, your negative keyword and signal work is doing its job. If it's flat or climbing, something upstream, like weak audience signals or a stale bidding strategy, probably needs another look.

If you're running this process across several client accounts as an agency, doing it one account at a time gets old fast. Keywordme's bulk editing lets you apply negative keywords, promote search terms, and manage match types across multiple ad groups or accounts without repeating the same manual steps in each one, which matters a lot when your review cadence covers ten accounts instead of one.

Confirm the Fix Is Working

Give it two weeks, then pull the search terms report again and check your wasted-spend percentage against where you started. If it's dropping, the cleanup and signal work from Steps 2 through 5 are doing their job. If new junk terms have surfaced, that's normal, not a failure, so repeat Steps 2-4 to flag and handle them. This becomes a routine, not a one-time fix, and it gets faster each time you run it.

If you're doing this cleanup by hand across spreadsheets and tabs, it's worth trying a tool built for exactly this workflow. Keywordme lets you remove junk search terms, build high-intent keyword lists, and apply match types instantly, right inside Google Ads, with no spreadsheets and no switching tabs. Start your free 7-day trial (then just $12/month) and take your Google Ads game to the next level.