PPC for Lawyers: Google Ads Cost per Signed Case

This post covers how a small or mid-size US law firm should run Google Ads and measure it by signed cases. For the phone side, read call tracking for lead generation. For the import mechanics, read the offline conversion tracking setup guide.

Why cost per lead misleads law firms

Legal clicks cost more than clicks in any other industry WordStream tracks. Its 2026 benchmarks put the median cost per click for attorneys and legal services at $9.87 and the median cost per lead at $131.63, the highest of all 23 industries in the study (WordStream). They’re medians from US campaigns run April 2025 to March 2026, not a price for your city.

At those prices, compare two hypothetical campaigns:

• Campaign A: leads at $50, and 1 in 20 signs. Cost per signed case: $1,000.
• Campaign B: leads at $150, and 1 in 5 signs. Cost per signed case: $750.

Cost per lead says fund A. Signed cases say B, before you even compare fees. Cost per signed case is spend divided by retainers signed from that spend. Track it per practice area, every month.

Build one campaign per practice area

Practice areas differ in what a case is worth, how many leads sign and how intake works. A flat-fee will and a contested custody case can’t share a budget or a target. Give each practice area its own campaign, landing page and conversion value:

1. Family law. Divorce, custody, support. Urgent searches, often phone calls.
2. Immigration. Visas, green cards, citizenship, deportation defense. If you serve clients in more than one language, match intake and landing pages to it.
3. Estate planning. Wills, trusts, probate. Lower urgency, more form fills, often a flat fee you can value in advance.
4. Business law. Formation, contracts, disputes. Fewer searches, higher fees, longer decisions.
5. Personal injury. Contingency fees and high case values. Value a signed case by its expected fee, not the settlement.
6. Brand. Your firm and attorney names in a separate campaign, so they don’t flatter the others.

Within each campaign, split ad groups by matter type (“child custody lawyer” and “divorce attorney” get different ads). Our Google Ads management starts with this split.

Where Local Services Ads fit for US law firms

Local Services Ads (LSA) show prominently in Google Search results and charge per valid lead, not per click (Local Services Help). Each country has its own category list. In the US, it includes bankruptcy, business, criminal, disability, DUI, estate, family, immigration, IP, labor, litigation, malpractice, personal injury, real estate and traffic lawyer services (Local Services Help).

Google now issues a single Google Verified badge to all Local Services advertisers who complete verification (Local Services Help). Ranking depends on your bid and your responsiveness: missed calls hurt, and message and booking leads help you catch people at night and on weekends (Local Services Help).

Google is moving US Local Services Ads into Google Ads as pay-per-lead Performance Max campaigns. The first phase, from August 2026, names home and storefront categories such as plumbing, HVAC and moving. Legal isn’t on that list. Broader groups follow in late 2026, and all remaining categories by 2027 (Google Ads Help). Watch your account notices for your date. Keep Search running next to LSA for the keyword, copy and landing page control LSA lacks.

Which location targeting fits a law firm?

Use Presence: people in or regularly in your target area. The default, Presence or interest, also reaches people elsewhere who only searched about your city (Google Ads Help).

Draw the map from where you can take cases: your licensed state, often only the counties where your attorneys appear in court. If a practice area can serve clients remotely, give it its own campaign with a wider map, after you confirm what your license allows.

What your ads can say depends on your state bar

Lawyer advertising has its own rules on top of Google’s policies. ABA Model Rule 7.1 says a lawyer “shall not make a false or misleading communication about the lawyer or the lawyer’s services,” including a statement that omits a fact needed to keep it from misleading (American Bar Association). The Model Rules are a template. Each state adopts its own version, and the details differ.

The State Bar of Arizona’s guidance shows how specific it gets. Only lawyers certified by the State Bar may call themselves “certified specialists,” listing past results can require the former client’s consent, and the bar advises against guarantees (State Bar of Arizona).

That hits headlines like “Best divorce lawyer,” “Specialist,” “$2M recovered” and “We win.” Check your state bar’s advertising rules and ask your ethics counsel before they go live. Nothing here is legal advice. Google combines responsive search ad headlines on its own, so make every headline safe on its own and next to any other.

Intake decides what your clicks are worth

You can buy the right searches and still lose the case at intake, when a caller hits voicemail and dials the next firm. Fix intake before you raise bids:

• Answer speed. Measure the share of ad calls answered live, by hour of day. Missed calls also cost you LSA ranking.
• After hours. Route evening and weekend calls to an answering service trained on your intake script, or schedule call assets only for the hours someone picks up (Google Ads Help). Send after-hours traffic to a booking form.
• Intake forms. Ask for name, phone, practice area, a line about the matter, and the state or county so you can screen out cases you can’t take. Call every web lead back within a set time.

How to track and qualify calls from legal ads

If most of your leads arrive by phone, call tracking comes first. Count a call only when it passes a length threshold you set from your own call log, and keep tap-to-call clicks secondary. The call tracking guide covers that setup in full.

If you still use call-only ads, move to responsive search ads with call assets: Google stopped new call-only ads in February 2026, and existing ones stop serving in February 2027 (Google Ads Help).

Google also records calls by default to score them as AI-qualified call leads. The default excludes only accounts that had turned recording off before and businesses identified as healthcare or financial services, and recording works only when both numbers are in the US or Canada (Google Ads Help). Law firms aren’t on the exception list. Decide with counsel whether Google should record your intake calls, and turn recording off in settings if not.

Then qualify each lead in your intake system with three flags: potential client with a matter you handle, consultation booked, retainer signed.

Send signed cases back to Google Ads with their value

If your primary conversion is “call over 60 seconds,” Smart Bidding finds more long calls, including people after free advice. Send signed cases instead.

Google recommends enhanced conversions for leads as the starting point for importing offline outcomes (Google Ads Help). Set up two conversion actions:

1. Qualified consultation. It gives bidding enough volume to learn from.
2. Signed case, with a value per practice area: the flat fee for estate planning, the expected fee for hourly matters, a conservative expected contingency fee for personal injury.

Mind the conversion window. Google lets you set it from 1 to 90 days depending on the conversion source, with 30 days as the default for Search (Google Ads Help). A case that signs after the window never reaches Google. For slow practice areas, lean on the consultation stage.

With values in place, you can bid toward value per practice area. Work each stage’s value back from your close rates: if 1 in 3 qualified consultations signs a $4,500 estate plan, a consultation is worth $1,500. Building the pipe from intake software to Google Ads is the core of our conversion tracking service.

Negative keywords every law firm account needs

Start with a shared negative list, then adjust by practice area:

• Free help: free legal aid, legal aid society, pro bono, free lawyer, free consultation (only if you don’t offer one).
• Careers and education: jobs, salary, paralegal, law school, LSAT, bar exam, internship.
• DIY: forms, template, how to file myself, without a lawyer, do it yourself. Keep these if you sell flat-fee document review.
• Wrong side or wrong matter: “lawyer for landlord” if you only represent tenants, or criminal terms in a civil-only firm.

Negative keywords don’t match close variants, so add plurals and other forms yourself (Google Ads Help). Read the search terms report every week for the first two months.

What to report each month

Per practice area, LSA and Search together: spend, qualified leads, consultations, signed cases, cost per signed case and fee value signed. Move next month’s budget by that table. It’s how we run Google Ads for lead generation. For an outside read on your firm’s account, start with our free Profit Growth Plan.

FAQ

How much do Google Ads cost for lawyers?

WordStream’s 2026 benchmarks put the median cost per click for attorneys and legal services at $9.87 and the median cost per lead at $131.63, both the highest of the 23 industries in the report (WordStream). Your practice area and city can differ widely.

Are Local Services Ads worth it for law firms?

In the US, test them next to Search. You pay per lead, and Google lists most practice areas as categories. You give up control of keywords, copy and landing pages, so keep Search for the matters you want to target.

What is a good cost per signed case for a law firm?

It depends on what a case is worth to you. Say a signed family law case brings $6,000 in fees and costs $1,000 in ads: you keep $5,000 to cover attorney time and overhead. Set your ceiling per practice area from those numbers.

Can lawyers say “specialist” in Google Ads?

It depends on your state. Some states, such as Arizona, reserve “certified specialist” for lawyers certified by the state bar (State Bar of Arizona). Check your state bar’s rules before you use the word.