Negative Keywords in Google Ads: Stop Paying for Bad Clicks

Every search campaign attracts searches you never meant to pay for. A shop selling premium leather bags gets clicks from people looking for free sewing patterns, and a tutoring centre gets clicks from job seekers. Negative keywords are the fence that keeps those searches out.

This guide shows you how to build that fence deliberately: where to find the junk, which match type to use, and how to keep the list tidy as your account grows.

What negative keywords actually do

A negative keyword tells the platform, "never show my ad when the search contains this term." It does not add anything to your campaign. It only removes opportunities, which is exactly why it is so powerful for small budgets.

Think of your keyword list as the doors you open, and negatives as the sign on the door saying who should not come in. Without the sign, the platform will happily match your ad to loosely related searches because its job is to find you volume.

There are three ways negatives help you:

• They stop spend on searches that will never convert.
• They improve the relevance of the traffic you do get, which supports your quality score.
• They make your reports more honest, because the clicks left over are closer to real buyers.

Why you cannot skip them

Broad and phrase match keywords are generous. They stretch to related meanings, plurals, and close variations. That is useful for discovery, but it also means a keyword like "wedding photographer" can surface searches about photography courses, camera rentals or editing software.

If you are still learning how the platform works, start with Google Ads for beginners and then come back here. Negatives are the first maintenance habit worth building once a campaign is live.

Where to find terms worth blocking

You do not need to guess. Your own account tells you what to block, through the search terms report. It lists the actual phrases people typed before they saw your ad.

Step 1: Open the search terms report

Look at the report for a period long enough to contain a meaningful number of clicks. For a small account, a few weeks is often enough to see patterns. Sort by cost so the most expensive irrelevant searches rise to the top.

Step 2: Mark each term as relevant, borderline or wrong

Go through the list and sort every term into one of three groups.

1. Relevant: people who clearly want what you sell. Leave these alone, or add them as exact match keywords.
2. Borderline: terms that might convert but look suspicious. Watch these for another cycle before deciding.
3. Wrong: terms that signal a different intent. Block these.

Step 3: Look for the word, not the whole phrase

Beginners often block an entire phrase when a single word is the real culprit. If "free" appears in many bad searches, one negative for "free" is better than twenty long phrases. Look for repeating words and patterns.

Common categories of negative keywords

Most businesses can start with a base list built from the same few categories. Adapt these to your offer.

• Price-sensitive intent: free, cheap, discount, coupon, download, template (if you do not sell these).
• Job seekers: jobs, careers, salary, hiring, internship, vacancy, resume.
• Learners and researchers: course, tutorial, how to, definition, meaning, pdf, example, training (unless you sell training).
• Wrong product type: second hand, used, repair, parts, manual (if you sell new complete products).
• Wrong location: cities or regions you do not serve.
• Competitor or brand names you have no reason to appear for.

Imagine a small bakery that sells custom celebration cakes. Its negatives might include "recipe", "mix", "class", "diy", "eggless recipe", "jobs" and "supplies". Every one of those searches is someone who wants to bake, not to buy.

Be careful, though. A word that is wrong for one business is gold for another. "Repair" is a negative for a shop that sells new phones, and a core keyword for a repair centre.

Choosing the right match type

Match types work differently for negatives than for regular keywords, and this is where many accounts go wrong.

Broad match negative

The ad is blocked only if the search contains all of your negative words, in any order. It does not block synonyms, plurals or close variants. That makes it narrower than people expect.

Phrase match negative

The ad is blocked if the search contains your words in that exact order, possibly with other words around them. Use this for multi-word phrases like "job vacancy".

Exact match negative

The ad is blocked only when the search is exactly your term and nothing else. Use this when you want to block one specific search without affecting longer, more valuable searches that contain the same words.

A practical rule: use phrase match for most of your blocks, broad match for single words you want gone in any context, and exact match to carve out a surgical exception.

Because negatives do not expand to plurals and misspellings the way positive keywords do, you may need to add common variants separately.

Account level, campaign level and ad group level

Where you place a negative matters as much as what it says.

1. Account level: for words that are wrong everywhere, such as job-related terms for a retailer. Add them once and every campaign benefits.
2. Campaign level: for words that are wrong for one campaign but fine in another.
3. Ad group level: for steering searches toward the right ad group.

That last use is underrated. Suppose you run one ad group for "men's running shoes" and another for "women's running shoes". Add "women" as a negative in the first and "men" as a negative in the second, with care about how the words overlap. This keeps each search landing on the most relevant ad and page.

Build a shared list and a routine

Shared negative lists let you apply a bundle of blocks to many campaigns at once. Create a few themed lists, such as "jobs and careers", "free and DIY", and "wrong locations", and attach them where needed.

Then turn this into a routine:

1. Weekly in the first month of a new campaign. Check the search terms report and add negatives.
2. Fortnightly or monthly once the account settles.
3. Immediately after you add new keywords, a new match type or a new campaign, because new targeting invites new junk.
4. After any seasonal event, since unusual searches spike around festivals and sales. If you plan around those periods, see festival marketing ideas.

Keep a simple spreadsheet noting the date, the term, the reason and the level where you added it. It prevents you from undoing your own work later.

Mistakes that quietly cost money

• Blocking a word that is part of your best keyword. Always check your own keyword list before adding a negative.
• Adding negatives in a hurry from only one or two clicks. A single odd search is not a pattern.
• Using broad match negatives for multi-word phrases and assuming they block the exact phrase. They will not behave like phrase match.
• Forgetting that negatives can reduce volume too far. If impressions fall sharply after a big cleanup, review what you blocked.
• Ignoring the conversion side. A search that looks odd may still produce sales. Judge by outcomes, which requires proper conversion tracking.
• Copying a generic negative list from the internet without reading it. Lists written for other industries can block your best customers.

How negatives fit with your budget

Blocking waste is the cheapest improvement available. Money you stop spending on irrelevant clicks can stay in the campaign and reach better searches, or it can be moved elsewhere as part of your paid media budget allocation.

Negatives also pair naturally with good keyword research. If you have not yet built your positive list thoughtfully, work through PPC keyword research for beginners so you are not trying to block your way out of a poor foundation.

A simple first-week checklist

1. Export or open the search terms report.
2. Sort by cost and review the top terms.
3. Group the wrong terms into themes.
4. Add single-word blocks at account level where the word is wrong for the whole business.
5. Add phrase blocks at campaign level for narrower cases.
6. Create one shared list for jobs and one for free or DIY intent.
7. Record what you added and why.
8. Set a calendar reminder to review again.

Takeaway

Negative keywords are not a one-time fix but a habit. Review real search terms, block by pattern rather than by guesswork, choose match types with care, and place each block at the right level. Over time your account becomes cleaner, your reports become more trustworthy, and your budget works harder.

If your campaigns are spending without producing clear leads, get in touch and talk through what an account cleanup could look like for your business.