There is no useful percentage that tells every law firm how much to spend on marketing. Set a budget for one matter-market opportunity by checking the work’s value, the firm’s ability to serve more of it, the full cost of a bounded test and the evidence needed to continue or stop. A percentage of revenue can be a comparison point, but it cannot make those decisions for your firm.
This is a planning method, not a quote or forecast. The right ceiling depends on the practice, existing demand, source of work, time to retain a matter and the firm’s own economics. Do not increase spend simply because another firm’s budget appears higher.
Start with capacity, not a channel package
Before pricing SEO, advertising or a new website, write down the matter subtype, client situation and geography the firm wants to pursue. Then ask the responsible lawyers and intake owner how much additional suitable work they could actually handle. If capacity is already constrained, buying more demand may create an operational problem rather than growth.
Use the law firm marketing plan worksheet to record the target work, historical value, demand, approved proof and capacity. A firm with incomplete matter history can still make a provisional decision, but should label the uncertainty instead of making a precise return claim.
Budget the complete path
A useful test budget covers more than media. Include every cost needed to attract, receive, assess and measure enquiries for the selected opportunity.
Scroll sideways to read all table columns.
| Cost | What to include | What to check |
|---|---|---|
| Evidence and planning | Matter analysis, demand review, positioning and proof approval. | Is there enough evidence to pursue this work? |
| Assets | Service page, landing page, approved stories, design, development and upkeep. | Will the visitor get a credible answer and a clear next step? |
| Acquisition | Media spend, search work, campaign setup or other chosen channels. | What is the smallest complete way to reach the target client? |
| Intake and follow-up | Staff time, phone or form handling, booking, software and any overflow support. | Can the firm respond to suitable enquiries and record the next action? |
| Measurement and review | Source tracking, system connections, reporting and decision time. | Can the firm see suitability and retained status, not just lead count? |
Decide which costs are one-off and which recur. State whether media, software, tax, staff time and major rebuilds are included in any provider proposal. A cheap cost per form fill can still be expensive when the forms are poor fit and intake consumes substantial time.
Set a ceiling and a review rule
Use these inputs for a first bounded test:
- Capacity: the number of additional matters the firm could responsibly take in the period, with the relevant team and intake coverage.
- Value measure: collected fees or, when available, matter contribution after delivery cost. Keep expected value separate from realised revenue.
- Acceptable acquisition cost: the ceiling the firm sets for obtaining a retained matter of this type, including all relevant marketing and handling costs.
- Full test cost: planning, assets, services, media, software and intake for the same period.
- Learning window: a date long enough for the relevant enquiries to reach a meaningful stage, with an earlier check for broken tracking or response.
- Stop condition: the capacity, data, proof or suitability failure that would prevent further spend.
Here is hypothetical arithmetic, not an industry benchmark or Paretoid result. Suppose a firm sets an AUD 18,000 ceiling for a three-month test and determines that AUD 3,000 is its own acceptable marketing cost per retained matter. At that ceiling, the test would need six retained matters to meet the firm’s chosen cost target: 18,000 ÷ 3,000 = 6. If the responsible team can take only four additional matters in that period, the plan does not fit its present capacity even before judging search demand. The firm should reduce scope, change the window or address capacity before committing the spend.
That calculation still says nothing about profit. Matter delivery cost, collection timing, attribution and the quality of the retained work remain to be checked. If the firm does not have a defensible acquisition-cost ceiling, start by estimating one from its own matter economics and mark the number provisional.
Review the budget against the right evidence
At the first operational check, verify that the page or campaign works, the firm owns the accounts, enquiries reach a named person, and the source survives into the intake record. These failures should be repaired before waiting for a return calculation.
At the commercial review, compare full cost with suitable enquiries, retained matters and the agreed value measure. Record why enquiries did not fit and whether suitable prospects reached a consultation or lawyer review. The marketing ROI guide gives the source-to-outcome record and a start, continue, fix or pause decision rule. Treat a small sample as a learning signal, not proof of a permanent return.
Continue or expand when the firm has a trustworthy record, can serve the work and accepts the observed economics. Fix a specific break when targeting, intake or attribution is the limiting factor. Pause an increase when the firm cannot tell which enquiries were suitable or has no capacity to act. These are firm decisions, not universal performance thresholds.
Choose the opportunity before committing the budget
Paretoid’s AUD 1,500 Opportunity Map tests historical matter value, current demand, firm capability and capacity before recommending where growth investment should focus. It is a standalone decision product. If a firm chooses implementation, the optional Growth Partnership builds and improves the selected path; media, software and other separately scoped costs need their own budget. Do not send client names, matter documents or privileged information through an initial enquiry.