How to Set Up Negative Keywords for a Campaign: A Step-by-Step Guide

Most Google Ads accounts leak budget like a sieve. You're paying for clicks from people searching "free alternatives," job seekers looking for "marketing manager salary," or competitors checking your pricing. Every irrelevant click drains your budget and tanks your conversion rate. The fix? Negative keywords. They're the single most underused optimization lever in PPC, and most advertisers either skip them entirely or add a handful of obvious terms and move on.

Here's what actually happens: You set up a campaign targeting "project management software," and Google's match type expansion decides your ad should also show for "project management jobs," "free project management templates," and "what is project management." None of these searchers want to buy your product. They click anyway because your ad looks relevant. You pay $8 per click. They bounce in three seconds. Repeat 50 times before you notice.

Setting up negative keywords isn't complicated, but doing it right requires a systematic approach. You need to know where to find the junk terms, how to block them without accidentally excluding good traffic, and how to maintain your negative keyword lists as Google keeps expanding your reach. This guide walks through the exact process I use when auditing accounts—from pulling your first Search Terms Report to building reusable negative keyword lists that protect your entire account.

By the end, you'll know how to stop wasting budget on clicks that never convert, regardless of whether you're running your first campaign or managing dozens for clients.

Step 1: Pull Your Search Terms Report and Identify Budget Drains

Everything starts with the Search Terms Report. This is where you see the actual queries people typed before clicking your ad—not just the keywords you're bidding on. Most advertisers never look at this report. That's why they're shocked when I show them they're paying for "free CRM software" when they only sell premium plans.

Navigate to your Google Ads account, click into the campaign you want to analyze, then go to Insights and Reports > Search Terms. You'll see a table showing every query that triggered your ads, along with impressions, clicks, cost, and conversions for each term.

Start by sorting the report by cost (highest to lowest). This surfaces the search terms bleeding your budget fastest. In most accounts I audit, the top 20 most expensive terms include at least 3-5 that should have been blocked months ago. Look for obvious red flags: queries containing "free," "jobs," "salary," "how to," "DIY," "definition," or competitor brand names you're not intentionally targeting. Understanding where to find negative keywords is the first step toward protecting your budget.

Next, sort by impressions. High-impression, low-click terms aren't costing you money directly, but they're diluting your Quality Score and making Google think your ads are less relevant. If you're getting thousands of impressions for "project management definition" but zero clicks, that's a signal to add it as a negative.

The patterns matter more than individual terms. If you see multiple variations of job-related searches—"marketing manager jobs," "marketing coordinator salary," "marketing careers"—you don't need to add each one individually. You can block the entire category with a few strategic negative keywords (we'll cover match types in the next step).

Export the report if you're managing multiple campaigns or working with a large dataset. Click the download icon and grab a CSV. Sort it in Excel or Google Sheets, add a column for "Action" and mark terms as "Block," "Maybe," or "Keep." This makes it easier to batch-process negatives instead of adding them one by one.

What usually happens here is advertisers get overwhelmed by the volume of irrelevant terms and give up. Don't try to clean everything in one session. Start with the top 10 cost offenders. Block those. Come back next week and tackle the next batch. Progress beats perfection.

Step 2: Choose the Right Negative Match Type for Each Term

Here's where most advertisers screw up: they add negative keywords without understanding how match types work, then accidentally block good traffic or fail to block the junk they intended to exclude.

Negative keywords use three match types—broad, phrase, and exact—but they behave differently than positive keywords. This is critical. A negative broad match keyword blocks any query containing that word in any order, with no expansion. It's much more literal than positive broad match. For a deeper dive, check out this guide on how match types work for negative keywords.

Negative Broad Match: This is your default for most exclusions. If you add "free" as a negative broad match, your ads won't show for any query containing the word "free"—including "free trial," "free shipping," "is there a free version," etc. You don't need to add close variants or plurals. Google handles that automatically.

Use negative broad match when you want to block an entire concept. Examples: "jobs," "salary," "DIY," "tutorial," "download," "torrent." These terms almost never indicate buying intent, so blocking them broadly makes sense. Learn more about negative keywords broad match behavior to avoid common mistakes.

Negative Phrase Match: This blocks queries containing your exact phrase in that specific order, but allows additional words before or after. If you add "how to" as a negative phrase match (formatted as "how to" with quotes), you'll block "how to set up project management" and "how to use project management software," but not "project management how to guide" because the phrase isn't in order.

Use negative phrase match when word order matters. Examples: "apply for," "sign up for," "looking for jobs." These phrases signal a specific intent you want to exclude, but the individual words might appear in legitimate queries.

Negative Exact Match: This only blocks that specific query with no variations. If you add [project management jobs] as a negative exact match (formatted with brackets), you'll block exactly that query, but not "project management job" (singular) or "jobs in project management."

Use negative exact match rarely—only when you want surgical precision. Most of the time, you're better off with broad or phrase match because they catch variations without requiring you to add dozens of similar terms.

The mistake most agencies make is adding everything as exact match because they're scared of blocking good traffic. This creates massive negative keyword lists that don't actually protect the account. Be more aggressive with broad match negatives. If you accidentally block a valuable term, you'll see it in your impression share metrics and can remove it. That almost never happens.

Step 3: Add Negative Keywords at the Campaign Level

Now that you know which terms to block and which match type to use, let's add them to your campaign. Click into the campaign you're working on, then navigate to Keywords > Negative Keywords in the left sidebar. You'll see a blue plus button—click it.

You have two options: add keywords directly or select from a list (we'll cover lists in the next step). For now, choose "Add keywords." A text box appears where you can paste your negative keywords. If you need a detailed walkthrough, this guide on how to add negative keywords in Google Ads covers every step.

Format matters here. Type each negative keyword on a separate line. For broad match (default), just type the word: "free". For phrase match, wrap it in quotes: "how to". For exact match, wrap it in brackets: [project management jobs]. Google will recognize the formatting and apply the correct match type.

Before you click save, double-check you're adding these at the right level. Campaign-level negatives apply to every ad group within that campaign. This is usually what you want—if "free" is irrelevant for one ad group, it's probably irrelevant for all of them. But if you're running a campaign with mixed intent (not recommended, but common), you might need ad group-level negatives instead.

To add negatives at the ad group level, click into the specific ad group first, then follow the same process. Ad group-level negatives only affect that ad group, giving you more granular control. Use this when you're testing different angles within the same campaign and need to prevent overlap between ad groups. Understanding where to add negative keywords in Google Ads helps you make the right choice.

After adding your negatives, verify they're active. You should see them listed in the Negative Keywords table with status "Eligible." If you see "Removed" or "Paused," something went wrong—usually a conflict with your positive keywords. Check that you didn't accidentally add a negative keyword that's identical to a term you're bidding on.

Here's a real scenario: You're bidding on "project management software" and you add "software" as a negative broad match because you saw irrelevant queries containing that word. Bad move. You just blocked your own primary keyword. Google will show your negative as conflicting and stop serving ads for that keyword. Always cross-reference your negative list against your target keywords before saving. If you run into this issue, here's how to fix conflicting negative keywords.

Step 4: Build Shared Negative Keyword Lists for Account-Wide Protection

Adding negatives campaign by campaign works, but it's inefficient. Every new campaign starts with zero negative keywords, which means you're re-learning the same lessons and blocking the same junk terms over and over. Shared negative keyword lists solve this. Learn how to add negative keywords to all campaigns at once using this method.

Go to Tools & Settings in the top right corner of Google Ads, then click Shared Library > Negative Keyword Lists under the "Shared library" section. Click the blue plus button to create a new list. Give it a descriptive name—something like "Job Searches" or "Free/DIY Terms" that makes it obvious what's inside.

Now add your negative keywords to this list using the same formatting rules as before. I organize my shared lists by category, which makes them easier to maintain and apply selectively. Here's how I typically structure them:

List 1: Job & Career Searches — Includes terms like "jobs," "careers," "salary," "hiring," "resume," "apply," "employment," "recruiter." Use broad match for most of these. Apply this list to every campaign unless you're specifically recruiting.

List 2: Free & DIY Intent — Includes "free," "DIY," "how to," "tutorial," "guide," "template," "download," "open source." Apply this to campaigns selling paid products or services. Don't apply it to campaigns offering free trials or freemium products—you'll block your own audience. For industry-specific terms, check out common negative keywords every campaign should have.

List 3: Competitor Brands — Includes competitor brand names and product names you don't want to bid on. Use phrase or exact match here to avoid accidentally blocking generic terms. For example, if a competitor is called "Summit Software," add "summit software" as phrase match, not "summit" as broad match (which would block "summit conference" and other legitimate queries).

List 4: Informational Queries — Includes "what is," "definition," "meaning," "wiki," "wikipedia," "explained," "vs," "comparison." These searchers are in research mode, not buying mode. Apply this list to bottom-funnel campaigns targeting high-intent keywords.

Once you've created a list, you need to apply it to your campaigns. Click on the list name, then click "Apply to campaigns" at the top. Select the campaigns where this list should be active, then save. The beauty of shared lists is that any update you make to the list automatically applies to all linked campaigns. Add one new negative keyword to your "Job Searches" list, and it instantly protects every campaign using that list.

In most accounts I audit, setting up four or five shared negative keyword lists eliminates 30-40% of wasted spend within the first week. It's not sexy optimization work, but it's the highest ROI task you can do in the first 30 days of managing an account.

Step 5: Schedule Regular Search Terms Reviews to Catch New Junk

Here's the part most advertisers skip: maintenance. You did the work once, added your negatives, and moved on. Three months later, you're back to wasting budget on irrelevant clicks because Google's match type expansion keeps finding new ways to interpret your keywords.

Set up a recurring calendar reminder to review your Search Terms Report. Weekly is ideal for active accounts with decent spend. Bi-weekly works for smaller accounts or if you're managing dozens of clients. Monthly is the bare minimum—wait longer than that and you'll miss patterns that could have saved you hundreds of dollars.

Your review workflow should look like this: Open the Search Terms Report for each campaign. Sort by cost. Scan the top 20-30 terms. Mark any irrelevant queries. Add them as negatives (either at campaign level or to your shared lists). Verify they're active. Done. This takes 10-15 minutes per campaign once you've built the habit. Be careful to avoid blocking good traffic with negative keywords during these reviews.

What usually happens here is advertisers see the same junk terms week after week and think their negatives aren't working. That's not the issue. The issue is Google keeps expanding your reach into new irrelevant territory. A query that didn't exist last month suddenly appears this month because Google decided your keyword is "close enough" to match it. Your job is to catch these new terms before they drain too much budget.

Track your blocked impressions to measure impact. In the Negative Keywords section, Google shows you how many impressions each negative keyword has blocked. This number should grow over time. If it's not growing, either your negatives aren't relevant or you're not adding enough of them. High blocked impression counts are a good thing—they mean you're protecting your budget. This directly ties into how negative keywords improve campaign performance.

Create a simple spreadsheet to log your negative keyword additions over time. Columns: Date, Campaign, Negative Keyword, Match Type, Reason. This helps you spot patterns. If you keep adding variations of the same concept, you probably need a broader negative keyword or a shared list to catch the entire category.

The advertisers who stay on top of this consistently see lower CPAs and higher ROAS. It's not because they're smarter or have better targeting. It's because they're not paying for garbage traffic that dilutes their conversion rate and wastes their budget on clicks that never had a chance of converting.

Putting It All Together

Quick checklist before you go: Pull your Search Terms Report and identify wasted spend by sorting by cost and impressions. Choose appropriate match types for each negative—use broad match as your default, phrase match when word order matters, and exact match sparingly. Add negatives at the campaign level for broad protection or ad group level for granular control. Build shared negative keyword lists in your Shared Library for common exclusions like job searches, free/DIY terms, and competitor brands. Schedule regular reviews (weekly or bi-weekly) to catch new junk terms as Google expands your match types.

Negative keywords aren't a set-it-and-forget-it task. They're an ongoing optimization that compounds over time. The first pass cleans up the obvious waste. The second pass catches patterns you missed. The third pass refines your lists and prevents future issues. Every review session saves you money and improves your account performance.

Start with your highest-spend campaigns today. Pull the Search Terms Report, block the top 10 cost offenders, and build your first shared negative keyword list. That's 80% of the impact with 20% of the effort. Build the habit from there, and you'll wonder how you ever managed accounts without a systematic negative keyword strategy.

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