Negative Keywords in Google Ads: The 2026 Playbook to Stop Burning Budget

If your Google Ads account is leaking money, chances are it’s not your bidding strategy or your creative. It’s the irrelevant search terms quietly draining your daily budget. Negative keywords are the single most underused lever for cutting wasted spend, and most accounts we audit at King Content Agency have between 15% and 40% of their ad spend going to searches that will never convert.

This guide walks you through exactly how to identify, organize, and add negative keywords across your campaigns, with real before/after numbers and a monthly workflow you can copy.

What Are Negative Keywords in Google Ads?

Negative keywords are terms or phrases you tell Google Ads to exclude from triggering your ads. When a user’s search query contains your negative keyword, your ad will not show, no matter how well it matches your regular keywords.

For example, if you sell premium leather boots and you add “free” as a negative keyword, your ad won’t appear for searches like “free leather boots” or “where to get free boots”.

The Three Negative Keyword Match Types

Match Type	How It Works	Example Negative	Blocks
Broad	Blocks queries containing all the words in any order	running shoes	“shoes for running”, “best running shoes”
Phrase	Blocks queries containing the exact phrase in order	“running shoes”	“cheap running shoes”, “running shoes review”
Exact	Blocks only the exact query	[running shoes]	Only “running shoes”

Quick tip: Phrase match is usually the sweet spot for cleaning up search terms without blocking valuable variations.

Why Negative Keywords Save Real Money (A Before/After Case)

Here’s a real example from a SaaS client we onboarded in early 2026. They were running a Search campaign for “project management software” with no negative keyword list.

Before Adding Negatives

• Monthly spend: $12,400
• Conversions: 38
• Cost per conversion: $326
• Wasted spend on irrelevant terms (free templates, jobs, courses, Reddit, examples): $3,890

After 30 Days With a Negative Keyword List

• Monthly spend: $12,400 (same budget)
• Conversions: 61
• Cost per conversion: $203
• Wasted spend recaptured and reinvested into converting queries

That’s a 38% drop in CPA with no change to bids, creative, or landing pages. Just smarter exclusions.

The 12 Most Common Irrelevant Search Terms to Block

Before you even open your search terms report, here are categories you should add as negatives to almost every B2B and B2C account:

1. Free (free, freebie, no cost, gratis)
2. Job-related (jobs, careers, salary, hiring, internship)
3. DIY (how to make, tutorial, build your own)
4. Educational (course, training, certification, learn)
5. Research (definition, meaning, what is, examples)
6. Pirated content (crack, torrent, cracked)
7. Competitor brand names (unless you’re running a conquest campaign)
8. Adult terms (relevant for most B2B accounts)
9. Forum and review platforms (reddit, quora, forum, wiki)
10. Wrong locations (countries or cities you don’t serve)
11. Wrong audience (kids, children, students if you sell B2B)
12. Wrong product type (used, refurbished, wholesale if you sell new retail)

How to Find Negative Keywords in Your Account

The gold mine is your Search Terms Report. Here’s how to access it in the 2026 Google Ads interface:

1. Open Google Ads and select your campaign
2. Click Insights and reports in the left menu
3. Choose Search terms
4. Set the date range to the last 30 to 90 days
5. Sort by Cost from highest to lowest
6. Filter out terms with conversions to focus on spend without return

Scan the list and flag anything irrelevant to your offer. You can add negatives directly from this view by checking the box next to a term and clicking Add as negative keyword.

How to Add Negative Keywords (Step by Step)

At the Campaign Level

1. Go to the campaign in Google Ads
2. Click Audiences, keywords, and content in the left menu
3. Select Search keywords, then the Negative search keywords tab
4. Click the blue + button
5. Type or paste your negative keywords, one per line, using the correct match type syntax
6. Save

At the Ad Group Level

Same path, but select an ad group before adding. Use this when a term is irrelevant for one ad group but valuable for another.

At the Account Level (Negative Keyword Lists)

This is where the magic happens for agencies and multi-campaign accounts:

1. Click the Tools icon at the top
2. Under Shared library, click Exclusion lists
3. Select Negative keyword lists
4. Click +, name your list, add keywords, and save
5. Apply the list to multiple campaigns in one click

How to Organize Your Negative Keyword Lists

Don’t dump everything into one giant list. Structure them by purpose so they’re reusable and easy to maintain.

List Name	Purpose	Apply To
Universal Junk	Free, jobs, DIY, adult, pirated	All Search campaigns
Brand Protection	Competitor brand names	Non-conquest campaigns
Top of Funnel Block	Definitions, examples, how to	Bottom-funnel campaigns only
Wrong Geography	Countries or cities you don’t serve	All campaigns
Product Mismatch	Used, wholesale, refurbished	Retail campaigns

The Monthly Negative Keyword Review Workflow

This is the workflow we use at King Content Agency for every client account. Block 45 minutes per account, once a month.

Step 1: Pull the Search Terms Report (10 min)

Last 30 days, all enabled campaigns, sorted by cost descending.

Step 2: Categorize Terms (15 min)

Create three buckets:

• Convert and keep: terms driving conversions, consider adding as exact match keywords
• Irrelevant: add as negatives immediately
• Borderline: monitor for another 30 days

Step 3: Decide Match Type (5 min)

For one-off bad queries, use exact match negatives. For recurring themes, use phrase match.

Step 4: Add to the Right List (10 min)

Update your shared negative keyword lists rather than adding at the campaign level when possible. This keeps everything centralized.

Step 5: Document Changes (5 min)

Keep a simple log so you can track which exclusions caused which performance shifts.

Common Mistakes to Avoid

• Over-blocking with broad match negatives. Adding “shoes” as a broad negative can block dozens of valuable queries
• Forgetting to check conflicts. Google Ads has a built-in conflict checker under the keywords tab. Use it
• Ignoring Performance Max and Shopping campaigns. You can apply negative keyword lists to PMax campaigns since 2024. Do it
• Adding negatives once and never reviewing. Search behavior changes constantly
• Not segmenting by funnel stage. A keyword like “reviews” might be junk for a bottom-funnel campaign but gold for a comparison campaign

FAQ

What is an example of a negative keyword?

If you sell luxury watches, common negative keywords would be “cheap”, “replica”, “fake”, “free”, and “how to repair”. These exclude searches from people clearly not in your target market.

How many negative keywords can I add in Google Ads?

You can have up to 5,000 negative keywords per campaign and up to 1,000 negative keyword lists per account, with up to 5,000 keywords per list.

Do negative keywords work for Performance Max campaigns?

Yes. Since 2024 you can apply account-level negative keyword lists to Performance Max campaigns directly from the Shared Library.

Should I use broad, phrase, or exact match for negatives?

Phrase match is the safest default. Use exact match for one-off queries you want to block precisely, and reserve broad match negatives for clearly junk single words like “free” or “job”.

How often should I review negative keywords?

Monthly for most accounts. Weekly for accounts spending over $20,000 per month or in fast-moving industries like ecommerce and travel.

Can negative keywords hurt my campaign performance?

Yes, if you’re too aggressive. Over-blocking can starve your campaigns of impressions and prevent Google’s Smart Bidding from learning. Always review the search terms a negative would block before applying it.

Final Thoughts

Negative keywords are not glamorous, but they are the highest-ROI hour you can spend in your Google Ads account each month. A well-maintained negative keyword strategy can easily cut your cost per acquisition by 20% to 40% without touching a single bid.

Need help auditing your account and building a custom negative keyword framework? The team at King Content Agency runs free Google Ads audits for businesses spending over $5,000 per month. Get in touch and we’ll show you exactly where your budget is leaking.