The honest version of law firm Facebook ads cost is three numbers: what a click costs, what a lead costs, and what a signed case costs once fee and spend are both in the math.
Only the first has a published legal figure, and none comes from Meta itself.
The channel itself, the advertising rules and the practice areas the platform fits are covered in Facebook ads for lawyers; this page is the money.
What the published benchmarks say
WordStream's 2026 Facebook ads benchmarks report a median cost per lead of $27.39 for leads campaigns across all industries, drawn from 452 US campaigns, and the leads table has no Attorneys & Legal Services row at all.
Legal appears only in the traffic-campaign tables, and those tables measure clicks, not leads.
So no published cost per lead exists for law firm Facebook ads: any figure you see quoted is an estimate, and a lead is whatever each advertiser counts in WordStream's data.
What a click costs on Facebook vs search
The one place legal does appear in the Facebook data is the price of a click: $0.69, with a 1.77% click-through rate, in WordStream's 2026 traffic-campaign tables.
The same year's WordStream search benchmarks put Attorneys & Legal Services at $9.87 per click, the highest of the 23 industries measured.
Cost per click, legal: Facebook vs Google search
Targeting stays open as well: legal is not one of Meta's special ad categories (housing, employment, financial products and services, and social issues, elections and politics, as of October 2026), so legal ads keep the audience options those categories give up, from age and gender to lookalike audiences.
Cheap clicks buy something different too: Facebook reaches people who were not looking for a lawyer, so the spend creates demand instead of harvesting it.
Search is the intent-priced channel, with WordStream's published legal cost per lead at $131.63 (WordStream sells ad management; More Booked Cases does not manage Google Ads, and both benchmarks blend every practice area); the channel-by-channel breakdown is in how much lawyers pay for leads.
What Facebook ads cost a law firm each month
The all-in monthly bill
The published price for managed Meta ads at More Booked Cases is $3,000 a month flat plus a $2,500 one-time setup, on a 3-month minimum.
The fee buys static image ads, 8 to 12 a month, landing pages Gabe builds, and one landing-page A/B test a month.
Ad spend goes to Meta from the firm's own payment method at a $3,000 a month minimum, never marked up and never a percentage of spend.
The running floor is $6,000 a month all-in, and month one is $8,500 with the setup.
Your firm owns the ad account, pixel and audiences in its own Business Manager, and keeps every landing page, ad and report.
Where the channel sits in the total is the subject of law firm marketing budget, which also carries the SEO and CRO lines.
Cost per lead: getting your own number
The cost per lead that matters comes from your own account, and the fields already sit in your intake software.
Legal intake and CRM products describe the same core funnel reports in their own words: lead source, cost per lead, consultations, sign-ups and revenue by source, and Lead Docket, Captorra, Clio Grow and MyCase each advertise their own version of those reports.
Those reports are only as good as how consistently your staff logs stages, so tag every lead with its source before you spend.
The arithmetic, illustrative throughout: $3,000 of spend at the $27.39 all-industry median as a placeholder is about 110 leads; one in four becoming a consultation is 27 consultations, and one in three of those signing is 9 cases, so the $6,000 all-in month ($3,000 fee plus $3,000 spend) works out to about $667 per signed case.
Every conversion input there is invented; no published law firm Facebook consultation rate or signed-case rate exists.
Read month one's real numbers and recompute from there; that is the honest way to scale a budget.
Illustrative: what budgets buy at the $27.39 all-industry median
Where Facebook ad budgets leak
Budgets rarely die on the price of a click; they die on rejected ads and leads that went nowhere.
Meta's personal-attributes policy, last updated June 2024, bars ads that assert or imply personal attributes including a criminal record, a vulnerable financial status or a physical or mental health condition; Meta's own not-allowed example is "Are you a convicted felon?", and the policy is applied case by case, so no headline is pre-approved.
Meta's lead-form rules, as of October 2026, require prior written permission before a form asks about criminal history, bankruptcy or debt, health including disabilities, or insurance details; those are the opening questions of personal injury, criminal defense and bankruptcy intake, so the workable pattern is a form that takes contact information and your own intake asking the rest.
Bankruptcy and debt-relief firms need one check: Meta's financial products and services category has been required for US advertisers in it since January 21, 2025, and its examples are insurance, bank accounts, investment services and payment services, but Meta does not state where bankruptcy or debt-relief firms land, so check whether Meta treats your ad as financial.
Each rejection costs a review cycle, so the cheap way to run this channel is creative that clears Meta's review the first time.
The rules your budget should assume
Two rule-side items carry budget consequences, and neither is legal advice.
ABA Model Rule 7.3's comments, as of August 2018, say a communication is not a solicitation when it is directed to the general public (billboard, banner ad, website, TV), responds to a request for information, or is automatically generated in response to electronic searches.
That is why a Facebook ad shown to a broad audience sits outside the Model Rule's solicitation definition; the Model Rules bind no one until a state adopts them, your state's version controls, and whether a form submitted to a third-party lead generator counts as a request for information is not settled.
The ABA's 2022 Rule 7.2 chart also lists states that require ads filed with or sent to the bar (Alabama: a copy delivered to the state bar's general counsel within three days) and states that require copies kept after last use (Arkansas 5 years, Connecticut and Maryland 3, Georgia, Idaho, Kansas and Michigan 2).
The chart dates to July 2022, so check your state bar's current rule, and confirm both items with your state bar's ethics counsel or an ethics lawyer; the fuller treatment is in attorney advertising.
Frequently asked questions
How much should a law firm budget for Facebook ads?
No published legal benchmark exists, so the budget has to come from your own case math: what a signed case is worth in your practice area and what your intake converts. Managed Meta ads here run $3,000 a month flat plus a $2,500 one-time setup, with ad spend paid directly to Meta at a $3,000 monthly minimum.
How much do Facebook ads cost per 1000 views?
Legal appears in WordStream's 2026 Facebook benchmarks only in the traffic-campaign tables, at a 1.77% click-through rate and $0.69 per click. That arithmetic works out to about $12 per thousand impressions (17.7 clicks at $0.69), a derivation from those two figures rather than a published cost per thousand.
How much do agencies charge for Facebook ads?
Management pricing is not standardized across the industry and most sellers quote privately. More Booked Cases publishes its price: $3,000 a month flat plus a $2,500 one-time setup on a 3-month minimum, with ad spend paid directly to Meta, never marked up and never a percentage of spend.
Do Facebook ads cost less than Google Ads for lawyers?
Per click, yes on WordStream's 2026 numbers: $0.69 on Facebook (traffic campaigns) against $9.87 on Google search for Attorneys & Legal Services. Per lead the comparison can't be made honestly, because the Facebook leads table has no legal row while Google search averages $131.63 per lead for legal.
How do I calculate my firm's own Facebook cost per lead?
Divide the month's Meta ad spend by the leads the campaigns produced, using the lead-source report in your intake software or CRM; legal intake products describe those reports (lead source, cost per lead, consultations, sign-ups). Divide again by consultations and signed cases to get the cost per case.