Every managing partner eventually asks the same question: how much should we actually be spending on marketing? It is a fair question with an unsatisfying first answer: it depends. But "it depends" is where lazy advice stops. The better answer is that it depends on a few specific numbers you probably already have, and once you put them together, the budget almost calculates itself.
This guide covers three budgeting frameworks, walks through a worked example, explains how to think about return on investment, and gives you a checklist for judging whether an agency's fee is reasonable.
A law firm should spend what it can justify per signed case. Start with your average fee per case, decide what share you can afford to acquire it, and multiply by the cases you want. Percent-of-revenue guidelines are a sanity check, but cost per signed case and case value math should drive the final number.
Why is there no single right number?
Two firms with identical revenue can need very different budgets. A personal injury firm in a crowded metro competes for some of the most expensive clicks in advertising. An estate planning practice in a smaller market may grow on referrals, reviews, and a strong local presence. A new firm with no reputation has to buy attention that an established firm earns through decades of past clients.
The variables that matter most:
- Practice area: case values and competition differ enormously.
- Market: bigger, denser markets usually cost more to win.
- Growth goals: holding steady costs less than doubling caseload.
- Starting point: a firm with strong rankings and reviews needs less paid support than one starting from zero.
- Intake quality: a firm that signs a high share of consultations can afford to pay more per lead.
Framework 1: Percent of revenue
The most common approach is to set marketing spend as a percentage of gross revenue. It is simple, it scales with the firm, and it keeps spending tied to what the business can afford. Growth-stage firms typically commit a larger share than mature firms that are maintaining position.
The weakness is that it is backward-looking. It sets this year's budget from last year's revenue, not from the cases you want next year. It also says nothing about whether the money is working. Use it as a guardrail: a ceiling you will not exceed, or a floor that keeps marketing from being cut to nothing in a slow quarter. Do not use it as your only method.
Framework 2: Target cost per signed case
This is the framework we push firms toward, because it ties spending directly to outcomes. You decide what you are willing to pay to acquire one retained client in a given practice area, then fund the number of cases you want.
- Calculate your average fee per signed case for each practice area.
- Decide what share of that fee you are willing to spend to acquire the case. That share depends on your margins and how much of the fee goes to staff time and overhead.
- Multiply the result by the number of new cases you want per month.
- That is your monthly acquisition budget for that practice area.
Once you have real tracking, you can compare each channel's actual cost per signed case to your target. Channels under target get more money. Channels over target get fixed or cut.
Framework 3: Case value math, with a worked example
Case value math connects the whole funnel: spend, leads, consultations, signed cases, and revenue. It shows you exactly where the leverage is. The example below is entirely hypothetical. The numbers are made up for illustration and are not benchmarks for any practice area or market.
Hypothetical example: a firm handles a type of case with an average fee of $5,000. It decides it can spend up to 20 percent of that fee, or $1,000, to acquire one case. It wants 10 new cases per month. That implies a monthly acquisition budget of about $10,000.
| Funnel stage (hypothetical) | Number | Assumption |
|---|---|---|
| Monthly marketing spend | $10,000 | Budget from the target above |
| Qualified leads | 50 | Hypothetical cost of $200 per qualified lead |
| Consultations held | 25 | Half of qualified leads book and show up |
| Signed cases | 10 | Four in ten consultations retain |
| Fee revenue | $50,000 | 10 cases at $5,000 each |
Now look at what happens when you change one variable. If intake improves so that half of consultations retain instead of four in ten, the same $10,000 produces 12 or 13 cases instead of 10. No extra ad spend required. If the cost per qualified lead drifts up but the sign rate holds, the firm can see exactly how much room it has before it crosses its $1,000 ceiling. That is the power of the math: it turns a vague budget conversation into specific decisions.
How do you measure marketing ROI for a law firm?
The simple formula is fee revenue from marketing-sourced cases, minus marketing cost, divided by marketing cost. In practice, law firm ROI has a few wrinkles you need to account for.
- Time lag: contingency cases may not pay for months or years. Track signed cases and expected value now, then reconcile with actual fees later.
- Attribution: a client may see a Google ad, read a blog post, check your reviews, and then call from your map listing. Ask every new client how they found you, and use call tracking where state rules allow.
- Compounding channels: SEO and reputation work keep producing after you stop paying for the initial effort. Judge them over a longer window than paid ads.
- Referrals from marketing clients: a client who came from search and later refers a friend is still a marketing win, even if the second case does not show up in your ad dashboard.
How do you judge an agency's fee?
The agency fee is only one part of your total cost. The real question is whether the fee plus the ad spend produces signed cases at a cost you can live with. Here is what to look at.
What exactly is included?
Get the deliverables in writing. "SEO services" could mean a monthly report and nothing else, or it could mean new practice pages, technical fixes, Google Business Profile work, and content every month. Ask for a list of what will be shipped, not just what will be "managed."
Is ad spend separate from management fees?
You should always know how much of your money reaches Google and how much goes to the agency. If the two are blended into one number, ask for the breakdown. Paid spend should be visible in an account you own.
Who owns the accounts and the website?
Your Google Ads account, Google Business Profile, Search Console, analytics, domain, and website should belong to the firm. If the agency leaves, everything you paid to build should stay with you.
Does reporting reach signed cases?
An agency that only reports clicks, impressions, and rankings is leaving out the part you care about. Good reporting connects marketing activity to calls, consultations, and retained clients, using your intake data.
What are the contract terms?
Long lock-in contracts with no performance checkpoints shift all the risk to you. Reasonable terms give both sides time for results to develop while keeping the agency accountable.
What are the red flags in a marketing budget?
- Spending money on channels with no tracking at all.
- Paying for leads that go to voicemail or unanswered forms.
- A budget set once and never revisited against results.
- Agency fees that dwarf actual working spend without a clear reason.
- Guaranteed rankings or guaranteed case counts, which nobody can honestly promise.
A note on ethics and fee rules
How you pay for marketing can raise professional responsibility questions, particularly around paying for referrals, sharing fees with non-lawyers, and pay-per-case lead arrangements. These rules vary by state. This is not legal advice, so check your state bar's rules and ethics opinions before signing any marketing agreement that ties payment to cases.
Build a budget you can defend
The right marketing budget is the one you can explain line by line: what each dollar does, what it produced, and what it should produce next quarter. If you want help building that math for your firm, start with our free discovery audit. We will review your current spend, tracking, and intake, and show you where the leverage is. You can also read about how we work or see the practice areas we specialize in marketing.
Frequently asked questions
Should a new law firm spend more on marketing than an established one?
Usually, as a share of revenue, yes. A new firm has no referral base, few reviews, and little search visibility, so it has to buy attention that established firms earn over time. The goal is to use paid channels to generate early cases while building the organic assets that lower acquisition costs later.
Is it better to spend on SEO or Google Ads first?
It depends on how quickly you need cases. Google Ads can produce calls within days, while SEO builds over months. Many firms start with a focused ad campaign to fund growth and gather keyword data, then invest steadily in SEO so they rely less on paid clicks over time.
Should marketing budgets be set by practice area?
Yes. Each practice area has different case values, competition, and sign rates, so one blended budget hides what is working. Set a target cost per signed case for each area, track results separately, and move money toward the practice areas producing the best return relative to their value.
What costs count as marketing spend for a law firm?
Include ad spend, agency and freelancer fees, website costs, software for call tracking and intake, directory listings, sponsorships, and the staff time dedicated to marketing. Many firms undercount by leaving out software and internal labor, which makes their cost per signed case look better than it really is.
How often should a law firm revisit its marketing budget?
Review performance monthly and reallocate quarterly. Monthly reviews catch waste early, such as a campaign spending on irrelevant searches. Quarterly is a sensible cadence for moving money between channels, because it gives each one enough time to show a trend. Rebuild the full budget once a year against your growth goals.