Performance Max Negative Keywords Strategy (2026)

Until January 23, 2025, Performance Max negative keywords were a joke. You had to fill out a modification request form, email it to your Google rep, and wait days for them to apply a hard cap of 100 keywords. As of 2026, you can add up to 10,000 campaign-level negative keywords directly through the Google Ads UI, view a full search terms report inside PMax, and apply unified placement exclusions at the account level. The platform that used to be a black box now has more control than most agencies are actually using. This guide covers the current 2026 negative keyword toolkit, the monthly audit workflow we run at Hustle Marketers across $30M+ in annual PMax spend under management, and the six query categories every ecommerce and lead gen account should block on day one.

What are Performance Max negative keywords?

The five exclusion mechanisms PMax now supports

Performance Max in 2026 has five distinct exclusion mechanisms, and they each block different things:

Campaign-level negative keywords. Launched January 23, 2025. Available directly inside each PMax campaign. Limit raised from 100 to 10,000 per campaign in March 2025, matching standard Search campaign capability. This is now the primary control surface.

Account-level negative keywords. Apply across every campaign in the account that serves on Search and Shopping inventory, including standard Search, Shopping, Performance Max, App, Smart, and Local campaigns. Found under Admin → Account settings → Negative keywords. The 1,000-keyword limit is small but adequate because account-level should only hold universally irrelevant terms. Note: they do not block YouTube, Display, Gmail, or Discover placements within any campaign.

Negative keyword lists. Reusable lists that can be applied to multiple campaigns. Rolled out for PMax in September 2025. The right tool when you manage many PMax campaigns with shared exclusion patterns.

Campaign-level brand exclusions. Separate from negative keywords. Use Google’s brand registry as the matching mechanism. Covered in detail in our PMax brand exclusions guide.

Account-level placement exclusions. Launched January 14, 2026. A unified exclusion list spanning Performance Max, Demand Gen, YouTube, and Display. Industry experts have called this the secret sauce for PMax because it replaces the old workflow of duplicating exclusion lists across dozens of campaigns.

How do you add negative keywords to a Performance Max campaign in 2026?

Campaign-level setup walkthrough

The current 2026 path is much simpler than the old workflow:

1. Open your Performance Max campaign in Google Ads
2. Click “Keywords” in the left navigation
3. Switch to the “Negative keywords” tab
4. Click the plus button to add new negatives
5. Paste your list, set match types (exact, phrase, broad), and save

You can add up to 10,000 negative keywords per campaign. The interface is identical to the standard Search campaign negative keyword UI, which means you don’t need to learn anything new if you’ve managed Search campaigns before.

Account-level setup walkthrough

Use account-level negative keywords for search terms that aren’t relevant to ANY product or service you sell. Job titles, educational queries, completely unrelated industries, and adult content all belong here. The biggest practical reason most agencies build their account-level list first is reach: account-level negatives don’t just apply to PMax. They apply to every campaign in your account that serves on Search and Shopping inventory, including standard Search, standard Shopping, Performance Max, App, Smart, and Local campaigns. Add them once and they apply automatically to every existing campaign and every new campaign you launch.

The current 2026 path:

1. Click the “Admin” icon in the top navigation
2. Click “Account settings”
3. Click “Negative keywords”
4. Click the plus button to add new negatives
5. Paste your list, set match types, and save

The account-level limit is 1,000 negative keywords. For most accounts this is plenty because your account-level list should only contain terms that are universally irrelevant. Anything that’s campaign-specific belongs at the campaign level instead.

What account-level negatives do NOT block

Account-level negative keywords only block Search and Shopping inventory. They do not block YouTube, Display, Gmail, or Discover placements, even for Performance Max campaigns that serve across all those channels. If you want to block specific YouTube channels, websites, or apps, you need placement exclusions or content keyword exclusions, which live under a separate Account suitability settings menu.

The practical implication: account-level negatives are powerful for Search and Shopping waste prevention, but they’re not a complete solution for cross-channel brand safety on PMax, Demand Gen, or Display campaigns. Pair them with the January 2026 account-level placement exclusions (a unified list spanning PMax, Demand Gen, YouTube, and Display) for full coverage.

One trap that still exists: account-level negatives accept the same match type rules as standard Search campaign negatives. That means “free” as a broad match negative will block queries containing the word “free” anywhere, including “fragrance free” and “alcohol free,” which is a problem for skincare or beverage accounts. Always use exact match or phrase match for ambiguous words. We cover the full match type trap in the section below.

Using negative keyword lists for multi-campaign management

If you manage several PMax campaigns with overlapping exclusion patterns, build a negative keyword list once and apply it to each campaign. The setup path: Tools → Shared library → Negative keyword lists → Create list. Then attach the list to each PMax campaign via the campaign-level negative keyword tab.

The advantage shows up when you need to update exclusions. Add a new negative to the shared list and it propagates to every campaign that’s using the list. Without lists, you’d have to manually update every campaign individually.

When to use campaign-level negatives instead of account-level

Campaign-level negatives are the right tool when a search term is relevant to OTHER campaigns in your account but not the one you’re configuring. The classic scenario: you run separate PMax campaigns for different products or services (one for “running shoes,” one for “hiking boots,” one for “dress shoes”) and you don’t want each campaign bidding on the others’ core queries.

In that setup, you’d add “hiking boots” as a campaign-level negative inside the running shoes campaign, “running shoes” as a campaign-level negative inside the hiking boots campaign, and so on. The query stays in play for the campaign it actually belongs to, but gets blocked everywhere else. Account-level negatives would be wrong here because they’d block the query across every campaign in the account.

This is also how you isolate product-specific campaigns from service-specific campaigns when you sell both. If you sell ceramic coatings as a product and also offer professional ceramic coating installation as a service, you’d add “diy ceramic coating” as a campaign-level negative in the service campaign (you don’t want service ads showing for DIY queries) but keep it active in the product campaign. The query is still valuable to your business; you just want it routed to the right campaign.

What match type should you use for PMax negative keywords?

Use phrase or exact match for almost every PMax negative keyword. Broad match negatives accidentally block relevant queries, including ones you actually want your ads to show for, because broad match treats each word as an independent block trigger. This is the single most common mistake we see when auditing accounts.

Why broad match negatives are dangerous

Here’s the scenario we see constantly in account audits: an advertiser adds three negative keywords as broad match thinking they’re blocking three irrelevant queries. What actually happens is broad match expands each negative to block any query containing those words in any combination. Three broad match negatives can quietly block hundreds of relevant queries that share even one word.

A concrete example. Say you sell wireless headphones and you add “free,” “manual,” and “repair” as broad match negatives because you don’t want shoppers looking for free guides, manuals, or repair information. Broad match negatives will also block:

• “free shipping wireless headphones” (contains “free”)
• “wireless headphones with free returns” (contains “free”)
• “hands-free wireless headphones” (contains “free”)
• “manual volume control headphones” (contains “manual”)
• “noise repair wireless earbuds” (contains “repair”)

Every one of those queries is a buyer signal you’d want to show ads on. Three broad match negatives just cost you that traffic, and the only signal you’ll see in Google Ads is a slow decline in impressions you can’t trace back to the negative keyword change.

When to use phrase match for negative keywords

Phrase match is the right default for most negative keywords. It blocks queries that contain your phrase in the exact order, which catches the intended waste without blocking adjacent relevant queries.

Using the same example, adding “free guide” as a phrase match negative blocks “free guide to wireless headphones” but leaves “free shipping wireless headphones” untouched. Adding “user manual” as phrase match blocks “wireless headphones user manual” but leaves “manual volume control headphones” running. This is the surgical control you want.

When to use exact match for negative keywords

Exact match is the safest choice for high-traffic terms where any false positive would cost meaningful revenue. If you’re a Shopify store doing $200,000 per month and you want to block one specific competitor query like “wireless headphones brand x review,” use exact match. You’ll block that one query and only that query; close variants stay eligible.

The trade-off is coverage. Exact match negatives only block the precise query, so you’ll need more of them. For most accounts, the right pattern is phrase match for the bulk of the list and exact match for sensitive high-value terms where false positives would be expensive.

The match type rule that works for 95% of cases

Default to phrase match. Use exact match only when you’ve seen the specific query waste budget. Avoid broad match entirely for negatives unless you’ve explicitly modeled the downstream coverage impact. This single rule prevents most of the negative keyword damage we see in account audits across the agency.

What queries should you block with Performance Max negatives?

The six query categories every account should block

Across every PMax account we audit, the same six query categories drain budget on Performance Max negative keywords audits. Block them on day one:

Career and job-related queries. “Marketing jobs,” “company name careers,” “remote work” pull traffic from people looking for employment, not customers. Add “jobs,” “careers,” “hiring,” “salary,” “interview,” “resume,” and “remote work” as phrase match negatives. This is especially critical for lead gen accounts (we cut wasted spend on career queries by 22% inside a single month for a law firm that scaled to 20X qualified leads and for CMSC driving school’s 35% lead surge).

Educational and DIY queries. “How to learn Google Ads,” “Facebook ads tutorial,” “PPC course” pull researchers and DIY operators. Block “tutorial,” “course,” “learn,” “training,” “certification,” and “how to learn” if you’re selling done-for-you services like our white-label PPC offering.

Competitor brand names. If you sell organic skincare, you don’t want to bid on “Drunk Elephant moisturizer.” Use brand exclusions where the competitor is a recognized brand, and account-level negatives where it’s a smaller brand Google doesn’t have in its registry yet.

Adult and explicit queries. Even with safe search enabled, ecommerce and lead gen accounts pick up adult-adjacent queries. Add the standard list (which Google publishes under content category filters) as account-level negatives.

Geographic queries outside your service area. If you serve only the US, queries containing “in India,” “in UK,” “London,” or “Toronto” should be blocked unless they happen to be relevant. The fix is also tightening your location targeting to “people in or regularly in” rather than “people interested in.”

Free, cheap, and bargain modifiers. Unless you’re a discount retailer, queries with “free,” “cheapest,” “bargain,” “discount code” tend to attract low-intent traffic. Test these as exclusions before committing, since some brands convert well on “discount” queries during promotional windows.

Industry-specific patterns we catch in audits

Beyond the standard six, every vertical has its own waste patterns. Auto parts accounts (like our P-REX Hobby work) leak budget on “diy install” queries that signal people looking to do their own work, not buy from a managed service. Skincare accounts leak on “ingredient information” queries where people are researching, not shopping. Legal lead gen accounts (our Blake International work documents this pattern) leak on “free legal advice,” “pro bono,” and “self-representation” queries.

How do you find which search terms Performance Max is actually serving?

The full Search Terms Report is now visible in PMax

This is the biggest 2025 win for advertisers. Google rolled out the full Search Terms Report visibility for PMax in Q1 2025, replacing the limited Search Themes Report that came before. You can now see the actual queries that triggered your PMax ads, just like in Search campaigns.

To find it, open your PMax campaign, click “Insights and reports” in the left navigation, then click “Search terms.” A new “source” column shows whether each query came from Search inventory or another channel (asset group, Display, Shopping). This level of attribution wasn’t available before 2025.

The search themes report still exists for theme-level analysis

Separately from the Search Terms Report, the older Search Themes Report still exists under Insights → “Search themes.” It groups query categories rather than individual queries, which is useful when you want to identify patterns rather than block specific terms. We use search themes for quarterly trend analysis and the search terms report for monthly exclusion additions.

Practical workflow for finding wastage

Pull the Search Terms Report monthly, sort by spend descending, and review the top 100 queries. Any query with $200+ spend and zero conversions becomes a negative keyword candidate. This used to be impossible without the report. Now it takes 20 minutes per month and recovers 10 to 15% of wasted spend in most accounts we touch.

Should you copy negative keywords from your existing Search campaigns?

The short answer is yes, with one caveat

If you’ve been running Search campaigns for a year or more, you’ve already built a negative keyword library that’s calibrated to your business. Copy it to PMax as a starting point for your Performance Max negative keywords list. The vast majority of queries that waste budget on Search also waste budget on PMax, because they’re inherently irrelevant to your offer.

The caveat: PMax matches more loosely than Search. A phrase match negative on Search might catch 80% of the bad queries it’s meant to block. The same negative on PMax might catch 60%, because PMax can find users without exact query matching through its other signals. You’ll need to expand the list over time as PMax shows you new wastage patterns.

The export workflow

From Google Ads, navigate to your Search campaign, click the “Keywords” tab, switch to “Negative keywords,” and export the full list as CSV. Open in Google Sheets, dedupe, then bulk paste into the campaign-level negatives interface for each PMax campaign (or upload once to a shared negative keyword list and apply to all). Plan an hour for accounts with 500+ negatives.

How often should you audit Performance Max negative keywords?

Our monthly audit workflow

For accounts spending under $30,000 per month, monthly is fine. For larger accounts, biweekly. The audit takes 90 minutes and follows this sequence:

Pull the Search Terms Report for the last 30 days. Sort by cost descending. Identify queries with $200+ spend and zero conversions. Add as exact or phrase match campaign-level negatives. Pull the Search Themes Report. Identify themes with under 1% conversion rate and over $100 spend. Add the theme’s anchor queries as negatives. Pull the channel performance report. Confirm spend is allocated where conversions are happening, not where they aren’t. Pull the location report. Confirm no spend is leaking to locations outside your service area. Tighten location targeting if needed. Review brand exclusions to ensure competitor brands haven’t expanded their query coverage. Update if needed. Review your account-level placement exclusions (added in January 2026) for any new questionable placements.

This Performance Max negative keywords audit workflow keeps wasted spend in the 2 to 4% range, which is the threshold below which further negative additions stop having meaningful ROI. Most accounts we inherit are running 12 to 18% wasted spend on PMax before we touch them. If you want the broader account-hygiene framework that wraps around the negative keyword audit, our Performance Max audit checklist covers measurement, feed, structure, exclusions, and reporting in one place.

What’s the difference between negative keywords and brand exclusions for Performance Max?

When to use which

Brand exclusions are for blocking PMax from serving on branded queries. They use Google’s brand registry as the matching mechanism, which means they’re often more accurate than text-based negatives. If a brand is recognized in Google’s system, brand exclusions will catch misspellings, alternate names, and product line names automatically.

Negative keywords are for blocking on any query type that doesn’t fit the brand exclusion model. Generic terms, category modifiers, geographic exclusions, intent-based exclusions (informational, navigational, transactional with poor signals).

Rule of thumb: if you’re trying to block a specific company’s name, use brand exclusions first. If the brand isn’t in Google’s registry yet, fall back to campaign-level negative keywords. For everything else, use negative keywords.

What’s new for Performance Max negative keywords in 2026?

Account-level placement exclusions (January 2026)

On January 14, 2026, Google rolled out account-level placement exclusions, which work alongside Performance Max negative keywords for full coverage. A single unified exclusion list now spans Performance Max, Demand Gen, YouTube, and Display campaigns. Before this, you had to duplicate exclusion lists across every campaign manually, which is why most accounts had inconsistent brand safety coverage.

Path to set up: Tools → Shared library → Account-level placement exclusions → Create list. Once configured, every new campaign you launch (and existing ones if you opt in) inherits these exclusions automatically.

Demographic and device exclusions

2026 also brought enhanced demographic exclusions for PMax. You can now exclude specific age brackets (e.g., 18-24 or 65+) and device types from PMax campaigns through the standard campaign settings interface. Useful for B2B SaaS lead gen accounts where you don’t want to pay for clicks from demographics that won’t convert.

Channel performance reporting

Channel performance reporting expanded in 2025 to show conversion data broken out by Search, Shopping, Display, YouTube, Discover, Gmail, and Maps. If you find one channel dramatically underperforming, you can effectively “exclude” it by stripping your asset group of the creative that channel uses (no video assets means no YouTube placement, for example). It’s a soft exclusion rather than a hard one, but it works.

How can you automate Performance Max negative keyword management?

Google Ads scripts for accounts over $50K monthly

Manual Performance Max negative keywords audits work fine up to about $50,000 monthly spend per account. Above that, automation pays for itself. Google Ads scripts can read the Search Terms Report on a schedule, identify queries crossing your spend-without-conversion threshold, and automatically add them as exact match negatives at the campaign level.

A basic script pattern: query the Search Terms Report API for the last 30 days, filter for queries with cost greater than $200 and conversions equal to 0, add each as an exact match negative to the campaign, log the addition for review. Schedule the script to run weekly. Review the audit log monthly to catch any false positives.

Third-party tools that handle this

Several tools build on top of the same workflow: Optmyzr, Adalysis, and Negator.io all offer negative keyword automation for PMax. Pricing varies from $99/month to $1,000+/month depending on account size. For agencies managing 10+ accounts, the time saved typically justifies the cost.

Why choose Hustle Marketers for Performance Max optimization?

We’ve managed Performance Max accounts since the format was in beta, with documented results across ecommerce and lead gen verticals. Founded in 2013 by Ishant Sharma, our team has driven over $780M in trackable client revenue across 2500+ brands. We hold Google Partner and Meta Business Partner status, with 591+ Upwork reviews at 99% job success, 36+ Clutch reviews at 5.0, and 6x Clutch Global Awards in 2026. Case studies covering PMax-specific work include ArmorGarage at 15x ROAS, P-REX Hobby at 9x ROAS, 80+ monthly leads for Aspire Media, and 700% ROAS for Blake International. If your PMax negatives haven’t been audited in 60+ days, we offer a free account review. Send us your account access and we’ll come back with a prioritized list of negative keyword additions within 5 business days.

Conclusion

Performance Max negative keywords are the most boring lever in PMax management and the highest ROI move you can make this quarter. The January 2025 rollout of campaign-level negatives and the March 2025 expansion to 10,000 keywords per campaign means there’s no more excuse for running PMax without proper exclusion coverage. Most accounts running Performance Max are leaking 8 to 15% of spend on queries that have no chance of converting, simply because nobody has pulled the Search Terms Report since the feature became available. Set up campaign-level Performance Max negative keywords this week. Block the six waste categories. Run the audit workflow monthly. Then validate the rest of your account against our PMax setup and audit checklist to catch anything the negative keyword pass missed. You’ll see results before the next billing cycle closes.

Frequently Asked Questions

How many negative keywords can a Performance Max campaign have in 2026?

Up to 10,000 negative keywords per campaign. Google expanded the limit from 100 to 10,000 in March 2025, matching standard Search campaign capability.

Can I add negative keywords at the campaign level for PMax?

Yes. Campaign-level negative keywords launched January 23, 2025, and are available directly in the Google Ads interface under the campaign’s Keywords tab.

What’s the difference between campaign-level and account-level negatives?

Campaign-level negatives apply only to one PMax campaign. Account-level negatives apply across every PMax campaign in the account. Use both layers for full coverage.

Will adding negative keywords reduce my PMax conversion volume?

Only if your negatives accidentally block converting queries. Conservative testing with exact match first, then expanding to phrase match, prevents this.

Should I add my brand name as a negative keyword?

Only if you’re running a separate Search campaign for branded queries. Otherwise, you’ll lose branded conversions entirely. Use brand exclusions instead.

Can I see search terms that triggered my PMax ads?

Yes. Google rolled out full Search Terms Report visibility for PMax in Q1 2025. Find it under Insights and reports inside each campaign.

Can I use scripts to manage PMax negative keywords?

Yes. Google Ads scripts can read the Search Terms Report API and automatically add negatives based on spend and conversion thresholds. Worthwhile for accounts over $50,000 monthly spend.

How long before negative keyword changes affect PMax performance?

Smart Bidding reacts within 48 to 72 hours. Visible impact on cost and ROAS shows up in week two. Wait two weeks before judging the impact of any negative keyword change.

Do PMax negative keyword lists work like Search campaign lists?

Yes. Negative keyword lists for PMax launched in September 2025. Build a list once, attach to multiple campaigns, and update once to propagate everywhere.

Should I use broad, phrase, or exact match for PMax negative keywords?

Use phrase match by default. Use exact match for high-value queries where false positives are expensive. Avoid broad match because each word triggers blocks independently, which often blocks relevant queries you actually want.

When should I add a negative at the campaign level vs account level?

Add at account level if the query isn’t relevant to ANY of your products or services. Add at campaign level when the query is relevant to other campaigns in the account but not the one you’re configuring.

Do account-level negative keywords apply to all Google Ads campaigns?

They apply to every campaign that serves on Search and Shopping inventory: Search, Shopping, Performance Max, App, Smart, and Local campaigns. They do not block YouTube, Display, Gmail, or Discover placements.

How do I block ads on Display and YouTube for Performance Max?

Account-level negative keywords don’t block these. Use placement exclusions, content keyword exclusions under Account suitability settings, or the January 2026 account-level placement exclusions feature for unified coverage across PMax, Demand Gen, YouTube, and Display.

What is the difference between negative keywords and account-level placement exclusions?

Negative keywords block specific search queries. Placement exclusions block where ads appear (websites, apps, YouTube channels). Both are needed for full brand safety in 2026.