Google Performance Max for Law Firms: Why Many Firms Should Turn Off Display and Shopping Inventory

04 October 2026·5 min read

Quick answer: Performance Max bundles Search, Display, YouTube, Gmail, Discover and Shopping into one automated campaign — and for a law firm, the Shopping inventory asset group is dead weight because you're not selling a product feed. Left on default settings, PMax will also happily spend a chunk of your budget on Display and Discover placements (apps, content sites, Gmail promotions tab) that generate impressions but very few real enquiries. Most firms should turn Shopping off entirely, tighten the asset groups so Search carries the weight, and actively audit placements rather than trusting the algorithm to self-correct. 🚀

If your law firm's Google Ads account has a Performance Max campaign running and you haven't looked at where the budget actually went this month, you're not alone — and that's exactly the problem. 💖 PMax is genuinely good at some things for professional services. It's also genuinely good at quietly burning budget on placements that were never going to turn into a retainer, because the campaign type was built for retailers with product feeds, not firms selling advice.

What most firms get wrong

The default move is to let Google's recommended settings run the show: broad audience signals, every asset type switched on, final URL expansion left ticked so Google can send clicks to whatever page it thinks will convert (sometimes your careers page). Most firms set PMax up once, see leads trickling in, and assume it's working — without separating how many of those "conversions" were Search clicks from someone typing "family lawyer Gold Coast" versus a Display impression on a mobile game. PMax's reporting is deliberately opaque about channel-level performance, so firms that don't dig into the Insights tab are flying blind.

The PMax audit checklist for a law firm account

Run this through once a quarter, or whenever cost-per-lead creeps up:

Turn off Shopping entirely. Check the asset group settings for a leftover product feed link from a previous agency or default setup.
Split asset groups by practice area rather than one generic group — family law and commercial litigation have different intent, imagery and landing pages.
Turn off (or restrict) final URL expansion so Google can't redirect clicks away from your chosen landing pages.
Add brand exclusions so you're not paying for your own firm name.
Check the Insights tab for placement data every few weeks — limited, but it's the only visibility PMax gives you.
Feed strong audience signals (client list, website visitors) so placements are built from your real audience, not a cold guess.
Benchmark against a standalone Search campaign for a month. If PMax isn't beating plain Search, that's your answer.

Worked examples

A 4-partner commercial law firm in Brisbane: ran one PMax campaign covering commercial litigation, leasing disputes and insolvency work in a single asset group. When they split it into three asset groups by practice area and switched off Shopping (a legacy feed link nobody remembered adding), cost-per-lead for commercial litigation — their highest-value work — dropped within a few weeks, because budget wasn't being diluted across lower-value leasing enquiries.

A solo family lawyer on the Gold Coast: found through the Insights tab that a chunk of her PMax spend was landing on Discover feed placements and app-based inventory — not the context someone researching a divorce lawyer is usually in. She tightened audience signals to her website visitors and past enquiry list, and trimmed the asset group to fewer, more targeted creative combinations.

A regional conveyancing firm: was paying for brand-name clicks inside its own PMax campaign because no brand exclusion had ever been added, so existing clients searching the firm's name were counted as new leads. Adding the exclusion freed up budget for a practice-area-specific asset group instead.

💡 Be honest about the trade-off: Performance Max genuinely can find some decent Display and YouTube placements you'd never discover manually, and Google's automation is improving. The nuance is that "automated" doesn't mean "hands-off" — it still needs direction, auditing and the willingness to turn things off that aren't earning their keep. Treat it as a campaign you manage, not one you set and forget.

Mistakes to avoid

Leaving Shopping switched on "just in case." No upside for a service business with no product feed — it's waste, or a misconfiguration nobody noticed.
Judging performance from the campaign-level dashboard only. The headline number can look healthy while hiding poor lead quality underneath.
Running every practice area through one asset group. It hurts the campaign's ability to learn what a good lead looks like for each area of law.
Never benchmarking PMax against a plain Search campaign. Without one, you can't tell if automation is helping or just spending.
Assuming the Local asset type inside PMax replaces a proper Google Business Profile strategy. It isn't a substitute for an optimised profile.

Frequently asked questions

Should every law firm turn off Display inside Performance Max?

There's no single on/off switch for Display the way a classic campaign has it, but you can restrict it heavily through asset groups, audience signals and URL expansion settings — worth doing for most firms rather than leaving the defaults to run wide.

Is Performance Max better or worse than separate Search and Display campaigns?

It depends on your account history and budget. Smaller accounts with limited conversion data sometimes do better letting PMax handle the complexity; larger accounts with a track record often get more control running Search and Display separately. There's no universal answer.

How long before we'd see a difference after restructuring an existing PMax campaign?

Google's algorithm typically needs a learning period after any significant change — usually a couple of weeks of stable performance before you can judge fairly. Changing several settings at once also makes it harder to know which one actually moved the needle.

Can we fully stop Performance Max from ever showing on Display or Discover?

Not completely — that's the nature of the campaign type. You can narrow it substantially through exclusions and signals, but some exposure outside Search is part of the deal if you run it.

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Written by

Kate, founder of Chronically Online

I help Gold Coast and Brisbane businesses grow with branding, websites and marketing that actually works.

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