In our experience, most small and mid-size law firms should plan on at least $2,500 to $3,000 a month in Google Ads spend per practice area to get enough data to judge results, and $5,000 to $10,000+ a month if the goal is a steady flow of signed cases in a competitive practice area or city. The right number for your firm comes from three inputs: what a click costs in your practice area, how many clicks it takes to get a lead, and how many leads you need to sign one client. Work those out and the budget stops being a guess.
By Jack Ogus, Founder & CEO of Ogus Marketing Group. Jack is a Google Ads Partner who has managed more than $10M in Google Ads spend and more than $1M in Facebook ad spend, much of it for law firms and accounting firms.
What Google Ads actually costs lawyers
Legal is one of the most expensive categories on Google. LocaliQ’s 2026 search advertising benchmarks put the average cost per click for Attorneys & Legal Services at $9.87, with an average cost per lead of $131.63 and a 5.55% conversion rate. The all-industry average CPC in the same report is $5.42. (LocaliQ, 2026 Search Advertising Benchmarks)
Costs vary a lot by practice area. LocaliQ’s legal-specific benchmark report (based on campaigns run April 2022 to March 2023, so treat these as directional, not current quotes) found:
| Practice area | Avg. CPC | Avg. conversion rate | Avg. cost per lead |
|---|---|---|---|
| Personal injury | $9.30 | 5.45% | $159.17 |
| Criminal law | $12.30 | 9.90% | $101.49 |
| Bankruptcy | $11.70 | 13.56% | $82.27 |
| Estate & probate | $7.92 | 9.65% | $72.24 |
| Family law | $7.69 | 8.52% | $103.54 |
| Tax law | $11.82 | 13.30% | $120.30 |
Source: LocaliQ, Legal Search Advertising Benchmarks
Two cautions before you plug these into a spreadsheet:
- Averages hide the expensive keywords. An average CPC of $9.30 for personal injury includes cheaper long-tail searches. The highest-intent terms in a big metro (“truck accident lawyer [city]”) can cost far more than the average. Check Google Keyword Planner’s top-of-page bid ranges for your own city before you set a budget. Your real cost depends on your city, your competitors, and which searches you choose to buy.
- Your cost per lead is mostly within your control. Two firms paying the same CPC can see very different cost per lead because of landing pages, call handling, keyword selection, and negative keywords.
A real example: Brown Law
Our client Brown Law (Lorie Brown) ran Google Ads with us for 10 months. Results over that period:
- 141 leads, including 86 phone calls
- $8.13 average CPC
- 10.32% conversion rate (clicks that became leads)
- $81.39 cost per lead
- 20%+ of leads became clients
That cost per lead is well below the LocaliQ legal average of $131.63, and it was not achieved by outspending competitors. When a firm beats the average, it is usually because of the things covered below: tight keyword selection, a focused landing page, careful tracking, and fast intake. Full details are in the Brown Law Google Ads case study.
How to calculate your law firm Google Ads budget
Do not start with “what can we afford?” Start with “how many new cases do we want, and what is one worth?” Then work backward.
Step 1: Pick a target. How many new signed clients per month do you want from Google Ads?
Step 2: Know your lead-to-client rate. Of the people who call or fill out a form, what share sign? If you don’t track this, count the last 3 months of intake calls and forms and how many became signed engagements. Use your real number, not a hopeful one; it varies widely by practice area and by how well intake is run.
Step 3: Estimate cost per lead. Use your own history if you have it. If you don’t, use the benchmark for your practice area above as a starting assumption, then replace it with real data after 60 to 90 days.
Step 4: Multiply. Leads needed × cost per lead = monthly ad spend.
Step 5: Check it against case value. If the math says you need to spend $6,000 to sign 10 clients worth $4,000 each, that is $40,000 in fees for $6,000 in ads. If each client is worth $800, the same budget does not work and you need a different practice area, a better conversion rate, or a different channel.
Worked budget example: a family law firm
Here is the arithmetic for a hypothetical two-attorney family law firm. The inputs are assumptions for illustration, not promises.
- Goal: 10 new signed clients per month from Google Ads
- Lead-to-client rate: 20% (1 in 5 leads signs)
- Expected cost per lead: $130 (close to the 2026 legal average of $131.63)
The math:
- Leads needed: 10 ÷ 0.20 = 50 leads per month
- Monthly ad spend: 50 × 130 = * *6,500 per month**
- Daily budget to enter in Google Ads: $6,500 ÷ 30.4 = about $214 per day
Why divide by 30.4? Google can spend up to twice your average daily budget on a busy day, but caps your monthly charge at 30.4 times the daily budget (Google Ads Help, About overdelivery and your average daily budget). So $214/day is how you land near $6,500 for the month.
Now the return check. If the average family law matter brings in $5,000 in fees, 10 clients = $50,000 in fees against $6,500 in ad spend (plus management fees). The cost to acquire each client is 6, 500 ÷ 10 = * *650**.
Using Brown Law’s actual numbers instead: at $81.39 per lead and a 20% close rate, each signed client cost about 81.39 ÷ 0.20 = * *407** in ad spend.
What if $6,500 a month is too much?
Then shrink the scope, not the daily budget. A small budget spread across five practice areas and a whole state gets a few clicks a day everywhere and teaches you nothing. Instead:
- Run one practice area in one tight geography.
- Make sure the budget buys at least about 10 clicks a day. At an $8 CPC, that is $80/day, or 80 × 30.4 = * *2,432 per month**.
- If 8% of clicks become leads (an assumption close to LocaliQ’s legal conversion rates above), ~304 clicks a month should produce roughly 24 leads, enough to judge whether the campaign works within 60 to 90 days.
Below roughly that level, results swing so much week to week that you can’t tell a bad campaign from a bad week.
What else drives Google Ads cost for lawyers
Practice area. In LocaliQ’s legal data, criminal law, tax law, and bankruptcy had the highest average CPCs, and personal injury had the highest cost per lead. Family law and estate planning were cheaper per click.
Geography. A personal injury campaign in Houston or Los Angeles faces more bidders than one in a mid-size market. Bidding statewide when you only take clients in three counties wastes money.
Match types and negative keywords. Broad match without a solid negative list will buy clicks for “free legal advice,” “lawyer salary,” and “how to become a lawyer.” In law firm accounts we audit, unchecked search terms are one of the most common sources of waste.
Ad schedule. If nobody answers the phone after 6 p.m., either pay for an answering service or reduce bids after hours. Paying $12 for a call that goes to voicemail is the most expensive click you can buy.
Response speed. In Clio’s 2019 Legal Trends Report, 79% of consumers said they expected a response within 24 hours, yet only 40% of firms responded to a test email inquiry and 39% of calls went to voicemail (Clio press release, Oct. 2019). The data is a few years old, but the lesson holds: slow intake turns a $100 lead into a $0 lead.
How much should you pay for management?
Ad spend and management fees are separate. Agencies typically charge a flat monthly fee or a percentage of spend. Whichever model you choose, ask for three things:
- You own the Google Ads account. If you part ways, your data and history stay with you.
- Conversion tracking on calls and forms, so you’re judged on leads, not clicks or impressions.
- Reporting on cost per lead and, ideally, cost per signed client, not just traffic.
If an agency can’t tell you your cost per lead last month, you are not managing a budget. You are just spending one.
Signs your budget is wrong
- Your campaigns hit the daily cap by noon. You are missing afternoon searchers. Either raise the budget or narrow the keywords and geography.
- “Lost impression share (budget)” is high in Google Ads. You are being outbid or under-funded on searches you already chose.
- Cost per lead is fine, but signed cases are not. That is an intake or lead-quality problem, not a budget problem. Review search terms and listen to call recordings before spending more.
- You can’t say what a lead costs. Fix tracking before you change spend.
Related reading from Ogus Marketing Group
- PPC for lawyers: how we structure paid search for law firms
- Google Ads for lawyers: campaign setup, keywords, and tracking
- Case studies, including Brown Law
- Contact us to talk through your numbers
Frequently asked questions
How much should a small law firm spend on Google Ads per month?
Plan on a minimum of about $2,500 to $3,000 per month for a single practice area in one market, enough for roughly 10 clicks a day at typical legal CPCs. Firms that want 10 or more new cases a month in a competitive practice area usually need $5,000 to $10,000+ a month. Calculate your own figure from target cases, lead-to-client rate, and cost per lead.
What is the average cost per click for lawyers on Google Ads?
LocaliQ’s 2026 benchmarks put the average CPC for Attorneys & Legal Services at $9.87, compared with $5.42 across all industries. Criminal law, tax law, and bankruptcy ran higher than average in LocaliQ’s legal-specific data; family law and estate planning ran lower. High-intent keywords in large cities can cost much more than the average.
What is a good cost per lead for a law firm?
The 2026 LocaliQ average for legal is $131.63 per lead. A “good” cost per lead is one that leaves room for profit after your close rate and case value. Our client Brown Law averaged $81.39 per lead over 10 months, with more than 20% of leads becoming clients.
How long does it take to see results from PPC for lawyers?
Calls can start the first week, but plan on 60 to 90 days to gather enough data to judge cost per lead and lead quality reliably. Use the first month to clean up search terms and confirm tracking, not to make big budget decisions.
Should I spend more on Google Ads or Facebook Ads for my law firm?
For most practice areas, Google Ads comes first because it reaches people actively searching for a lawyer. Facebook Ads can work well for retargeting site visitors and for some practice areas, such as estate planning, where people plan ahead rather than search in a crisis. Start where the intent is highest, then add Facebook once Google is profitable.
Get a free Google Ads audit for your law firm
If you’re already running Google Ads, we’ll review your account for free and show you where the budget is going: which search terms are wasting money, whether calls are being tracked, and what your real cost per lead is. If you’re not running ads yet, we’ll help you build a budget from your own numbers.
Call 365-366-2524 or request your free Google Ads audit.
Ogus Marketing Group is a Google Partner agency based in Hamilton, Ontario, running Google Ads and Facebook Ads for law firms and accounting firms across the US and Canada.