Negative Keywords in Google Ads: A Local Business Guide

TL;DR: Negative keywords block your ads from showing up for searches that look related but never convert, things like "free," "jobs," "DIY," or the next town over that you don't service. Set them up once, review monthly, and you'll stop paying for clicks that were never going to call you.

What you need

Before you touch the negative keyword list, gather these:

• Access to your Google Ads account (Keywords > Negative keywords)
• At least 2-4 weeks of search terms data, or your best guess if you're brand new
• A clear list of what you do and don't do (services, service area, price range)
• 15-20 minutes a month for maintenance

If you're not sure your ads are even set up to track real leads yet, that's a separate problem worth fixing first. Worth a read: our piece on Google Ads getting clicks but no calls or leads.

One-line takeaway: You can't build a good negative list without knowing what you actually do, so write that down first.

Step 1: Understand why negative keywords matter for local businesses

Google Ads matches your keywords to searches using "broad match" logic that's gotten aggressive over the years. Bid on "plumber" and Google might show your ad for "plumber salary," "plumber jobs near me," or "how to become a plumber." None of those people are hiring anyone. They're clicking, though, and every click costs you money.

For a national e-commerce brand, some wasted clicks are a rounding error. For a local business with a tight radius and a real budget ceiling, wasted clicks are the whole ballgame. A plumber in West Palm Beach doesn't need clicks from Orlando. A family law office doesn't need clicks from people searching "free divorce forms." Negative keywords are how you tell Google "not this, not them, not there."

One-line takeaway: Broad match without negatives is like handing out fliers to everyone in the mall and hoping the right people grab one.

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Step 2: Pull your search terms report and read it like a detective

Go to Keywords > Search terms in Google Ads. This report shows the actual phrases people typed before your ad appeared. Sort by clicks or cost, and start reading top to bottom.

You're hunting for three categories:

1. Obviously irrelevant terms. "Plumber salary," "AC repair course," "how does a garage door work." These cost you money and never had a shot at converting.
2. Competitor or brand terms you didn't intend to target. Sometimes you'll show up for a competitor's name if your ad groups are loosely structured.
3. Wrong intent terms. "Free," "DIY," "cheap," "jobs," "hiring," "how to." People researching or job-hunting, not people ready to pay for a service.

A repair shop we've seen this pattern with was paying for clicks on "how to fix a laptop screen yourself." That searcher wants a YouTube tutorial, not an invoice. Every one of those clicks was a small leak, and small leaks add up to a busted budget by month's end.

One-line takeaway: The search terms report is where your ad spend goes to confess its sins. Read it monthly.

Step 3: Build your negative keyword list in layers

Don't just add negatives as you find them randomly. Organize into three layers so the list stays manageable:

Layer 1: Universal negatives. Words almost no local service business wants: "free," "jobs," "salary," "hiring," "internship," "DIY," "how to," "course," "training," "wikipedia," "reddit." These apply to nearly every local business type.

Layer 2: Industry-specific negatives. If you're a law office, add "free legal advice," "legal aid," "pro bono," "paralegal jobs." If you're a window and door installer, add "window repair tutorial," "how to install windows," "window replacement cost calculator" (if you don't want price-shoppers who bounce at the first estimate).

Layer 3: Geographic negatives. If you only serve a 30-mile radius, add the names of cities and regions you don't cover, especially ones that sound similar to towns you do serve. This matters more than most local businesses realize, because Google's location targeting is looser than people assume, it targets people interested in a location, not just people physically there.

Apply these at the campaign level so they cover every ad group, and add a fourth ad-group-level layer for anything specific to that group (a plumbing campaign's

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Frequently asked questions

How many negative keywords should a local business have?

There's no magic number. Most small local campaigns land somewhere between 50 and 200 negatives once the account matures, split across universal, industry, and geographic layers. Start small and let your search terms report guide additions instead of trying to guess a perfect list on day one.

Will negative keywords hurt my impression share?

They'll reduce impressions for irrelevant searches, which is the point. Impressions from people who were never going to buy don't help you, they just make your reach numbers look bigger while your budget disappears. Fewer, better-matched impressions almost always beat more, worse ones.

Should I use negative phrase match or negative exact match?

Phrase match negatives block a wider range of variations and are usually the safer default for local businesses trying to cut waste quickly. Exact match negatives are more surgical, useful when you want to block one specific search term without accidentally blocking related searches you still want.

How often should I update my negative keyword list?

Check your search terms report at least monthly, weekly if you're spending aggressively or just launched a campaign. New junk terms show up constantly as Google's matching evolves, so treat this like weeding a garden, not a one-time chore.

Can negative keywords fix a campaign that gets clicks but no calls?

They help, but they're not the whole fix. If clicks aren't converting even after cleaning up irrelevant searches, the problem might be your landing page, offer, or tracking setup rather than keyword targeting alone.

Do I need negative keywords if I'm only running Local Services Ads?

Local Services Ads work differently and don't use the same keyword bidding structure, so traditional negative keywords don't apply there the same way. If you're running standard Search campaigns alongside LSAs, the negative keyword strategy still fully applies to the Search side.