What are negative keywords, and how do they save you money?
Quick answerNegative keywords are words you tell Google Ads not to show your ad for. If you run a plumbing company and add "jobs" as a negative keyword, you stop paying when someone searches for plumbing jobs instead of a plumber. They cut wasted ad spend by keeping your budget on searches from people who might actually hire you.
When you run Google Ads, you are not buying customers. You are buying clicks. And a click from someone who was never going to hire you costs exactly the same as a click from someone who was ready to call today.
Negative keywords are the simple setting that helps with this. Most small business owners have never heard of them, and that is a shame, because they are one of the quickest ways to stop wasting money.
What a negative keyword actually does
Normally you tell Google which searches should trigger your ad. A negative keyword does the reverse. It tells Google which searches should never show your ad.
Say you run an HVAC company in Tulsa and you bid on "air conditioner repair." Google may also show your ad to someone searching "air conditioner repair training" or "how to fix an air conditioner yourself." Those people are not looking to hire you. They are students or do-it-yourselfers. If you add "training," "course," and "diy" as negative keywords, your ad stops appearing for those searches.
That is the whole idea. You are not narrowing who you want. You are removing the searches you know are wrong.
Why the wrong clicks happen
Google tries to match your ad to searches it thinks are related. That is helpful when it works and expensive when it guesses wrong. A word like "cheap" or "free" can pull in people who want something very different from what you sell. A word with two meanings can pull in a whole group of people you never meant to reach.
Owners who do not look at their search data often find that a noticeable slice of their budget has gone to clicks like these. The only way to know for your own account is to look, which is easy once you know where.
A starter list any business can use
Every business is different, so treat this as a starting point and trim it to fit what you sell. These words tend to signal someone who is not about to buy:
- jobs, careers, hiring, salary, internship. Job seekers, not customers.
- free, cheap, coupon, discount. Only add these if you are not competing on price. If you are, leave them off.
- diy, how to, tutorial, instructions. People who want to do it themselves.
- course, training, class, school, certification. Students and people curious about the trade.
- definition, meaning, wikipedia, pictures. Researchers, not buyers.
- used, parts, manual, template. Often shoppers for something you do not offer.
Look this list over line by line. A bakery might happily serve people searching "cake class," while a plumber would not. If a word could describe a customer of yours, leave it alone.
How to find your own negative keywords
The best list is the one built from your own account. In Google Ads, open the search terms report. It shows the real phrases people typed before they saw and clicked your ad.
Scan it for anything that makes you shake your head. Searches for a competitor's job openings, searches for a service you do not offer, searches in a city you do not serve. Add those words as negative keywords, and your ads stop showing for them from then on.
Do this every week or two when an account is new, then less often once things settle. Most owners find the first pass turns up plenty, and later passes are quick.
Go gently, and check your work
Negative keywords are powerful, which means they can also be too blunt. If you add "free" as a negative and your business offers a free estimate, you may block people searching for exactly that. Pay attention to how each word could be used by a real customer before you add it.
There are also different match types, such as broad, phrase, and exact. A broad negative blocks any search containing that word. A phrase or exact negative is narrower and safer when you are unsure. When in doubt, use the narrower choice and widen later.
It also helps to understand where ads fit in your bigger plan. If you are weighing paid ads against search rankings, our post on SEO versus Google Ads for local businesses walks through how the two work together.
The honest part
Negative keywords will not turn a weak ad or a confusing website into a winner. They simply keep your budget pointed at the people most likely to call. The savings come quietly, a few clicks at a time, and they build up the longer you keep the list tidy.
Nothing here works overnight, and an ad account is never really finished. It does reward a little regular attention. If you would rather have someone watch the search terms for you, tell us what you need and we will help you build ads that spend your money where it counts.
Frequently asked questions
Where do I find negative keyword ideas for my own account?
Open the search terms report in Google Ads. It lists the actual searches that triggered your ads. Anything that clearly is not a customer, such as job seekers or people wanting free help, is a good negative keyword.
Can negative keywords hurt my ads?
Yes, if they are too broad. Adding a word that your real customers also use can block good searches. Start with clear mismatches, and check your results again after a few weeks.
How often should I update my negative keyword list?
A quick look at the search terms report every week or two is plenty for most small accounts. New odd searches show up all the time, so the list keeps growing slowly.
