Should That Search Term Become a Negative Keyword?

Add a negative keyword when a search clearly asks for something your campaign should not offer. If the search is relevant but has not produced an inquiry, investigate the tracking, landing page, and follow-up before deciding that the words are the problem.

The useful question is not simply, “Did this search spend money?” It is, “What would make this person a suitable customer, and does this search rule that out?” This guide focuses on Google Ads Search campaigns and gives you a worksheet for making that decision with your agency or internal team.

Start with the search people made

A keyword is an advertiser’s targeting input; a search term is what someone searched for. Google’s search terms report shows reported searches that triggered ads. Some low-volume queries are omitted for privacy, so an export is not a complete transcript of every search. Google explains the report and its limits here.

Review the query alongside its campaign, ad group, matched keyword, date range, clicks, cost, and recorded conversion actions. Add actual inquiry outcomes where you can reliably connect them. Keep “no recorded conversion” separate from “confirmed unsuitable inquiry.” If the connection is missing, mark the outcome unknown.

Before looking at the numbers, write one sentence describing what the campaign sells. Include the service, customer type, and meaningful exclusions. That sentence gives everyone a shared reason to keep or exclude a search.

Sort the decision before choosing the match type

Clearly outside the offer: The query asks for a product or service you do not sell, or a purpose this campaign does not serve. A narrow exclusion may be appropriate without waiting for that obvious mismatch to spend more.

Relevant, but not producing inquiries: The words describe work you want. Check whether the ad promises the right service, the page explains it, the form works, and calls reach someone. A negative keyword cannot repair those problems.

Unclear intent: The query could describe a good prospect or a poor fit. Read related searches and available lead notes. Set a review date and a spending limit appropriate to the campaign’s economics. This is a recommendation for managing uncertainty, not a universal Google threshold.

A hypothetical cleaning company: three different decisions

Imagine a company that cleans occupied offices. It does not recruit through its customer-acquisition campaign and does not sell equipment. These are illustrative decisions, not client results.

• “office cleaning jobs” points to employment. Consider excluding that specific query while checking whether a separate recruitment campaign needs it.
• “office cleaning prices” fits someone evaluating a supplier. Do not reject it simply because “prices” sounds cost-conscious. Review whether the page explains how estimates work and whether inquiries match the service.
• “commercial floor cleaning machine” suggests equipment shopping. Confirm that the company does not sell or rent machines, then propose a focused exclusion for that intent.

The business owner supplies the commercial context. The person managing the account translates it into a precise rule. Neither should assume that a word such as “free,” “cost,” or “jobs” is unsuitable in every business or every campaign.

Check what the proposed negative would actually block

For Search, negative broad match blocks searches containing every negative term, in any order. Negative phrase match requires the same term order and permits surrounding words. Negative exact match requires those terms in that order without extra words. Negative keywords do not generally expand to synonyms or singular/plural variants; Google currently accounts for casing and misspellings automatically. See Google’s negative-keyword matching rules.

For example, the negative exact keyword [office cleaning jobs] would block that query, but would not by itself block office cleaning jobs near me. Negative phrase “office cleaning jobs” would also block the longer query. These examples describe this rule’s effect, not a guarantee that an ad will otherwise show.

Our recommendation: start with the narrowest exclusion that captures the confirmed mismatch. Broaden it only after checking useful queries that share those words.

Before saving, write two examples: one search the rule should block and one useful search it must preserve. Compare both against the proposed match type and existing exclusions. If you cannot explain the difference, the change is not ready.

Scope matters as much as wording

An exclusion that fits one campaign may harm another. Keep campaign-specific restrictions with the campaign they belong to. Review shared lists before applying them more widely.

Google’s account-level negative list applies across eligible Search and Shopping inventory in relevant campaign types. That makes account-level exclusions a wider decision than editing a single campaign. Google documents their coverage here.

In the cleaning example, an employment exclusion in a customer campaign could make sense while the same exclusion across an account containing recruitment campaigns could conflict with the business’s plans. Check the whole affected scope before approving it.

Copy this review worksheet

Use one row per proposed change in a spreadsheet. Keep the original search and the proposed negative in different columns.

• Observed query and period: Exact reported search; date range; campaign and ad group.
• Offer mismatch: What the search appears to request, and why the campaign should not serve it. Write “unclear” when you do not know.
• Evidence: Clicks, cost, named conversion action, and verified inquiry outcome if available. Mark missing outcomes as unknown.
• Proposed rule: Negative text, match type, and campaign, ad group, shared list, or account scope.
• Block check: A specific unwanted search the rule should exclude.
• Preserve check: A relevant search sharing some words that must remain unblocked by this rule.
• Decision and owner: Add, investigate, or retain; who approved it; date saved.
• Follow-up: Review date, evidence to inspect, and conditions for removing or narrowing the exclusion.

A filled example could read: observed query “office cleaning jobs”; mismatch “employment intent in the customer campaign”; outcome “unknown”; proposed rule “exact negative, customer campaign only”; block check “office cleaning jobs”; preserve check “office cleaning prices”; decision “add after checking existing exclusions.” Unknown outcomes do not erase a clear offer mismatch, but they should remain unknown in the record.

Verify the edit, then evaluate the result

Save a before-and-after export of the affected exclusions. Confirm the text, match type, and where the rule applies. This verifies the account change; it does not prove improved performance.

At the agreed review date, inspect subsequent search terms and available inquiry outcomes. Lower spend alone is not evidence of better lead quality. Track whether unsuitable inquiries changed and whether suitable opportunities were preserved. If budgets, ads, or the offer also changed, record that context before attributing the difference to negatives.

For the broader campaign context, our guide to service-area and lead-quality decisions connects search intent with the offer, landing page, and sales handoff.

If you want help reviewing a proposed exclusion list, bring this worksheet and a recent search terms export to a Google Ads account review with Branding Bull. We can scope the review around the services you want to sell and the evidence your team can actually provide.