The budget process for law firm chief marketing and business development officers used to be predictable: Take last year’s numbers, adjust a few percentages and defend the total. But that model will not be effective for 2027 budget planning. Artificial intelligence has moved from experimental pilot programs to a core part of the daily marketing and business development process, client expectations continue to escalate, and firm leadership is asking CMBDOs to do more while focusing on return on investment.

In a joint survey by the Legal Marketing Association and Above the Law, 54% of legal marketing and business development leaders reported inflation-adjusted budget increases in the past year while only 14% reported decreases. Those numbers reflect firm leadership confidence in the function, but they do not address the changes technology is forcing into the process.

The Strategic Narrative Comes Before the Spreadsheet

CMBDOs must build the budget around the firm’s strategy, regardless of whether they helped shape it or received it fully formed from leadership. With AI reshaping competition among law firms and client expectations shifting faster than in years past, a spending plan disconnected from the firm’s actual priorities is a missed opportunity. CMBDOs who earn the strongest credibility confirm that every dollar traces back to a strategic goal, proving marketing’s value by what the budget accomplishes rather than where it originated.

A smart budget starts with a narrative: what the firm is trying to achieve in 2027, whether that means entering a new practice area, integrating a recent merger or deepening client relationships, and what marketing and business development must deliver to support that goal. The CMBDOs who get this right sit down with the managing partner, chief operating officer, practice group leaders and key rainmakers before opening a spreadsheet, working to understand whether growth means expanding into a specific industry sector or geographic region or deepening ties with existing clients. Every dollar in the 2027 budget should link to a strategic priority. This practice also produces the language CMBDOs need to defend the budget later: “We need $40,000 for a new campaign” becomes “This investment supports the firm’s stated priority of growing the healthcare regulatory practice by 15%.”

Chief financial officers and finance committees frequently ask CMBDOs what peer firms budget for marketing. General guidance suggests law firms allocate between 2% and 10% of gross revenue to marketing. A firm that is in growth mode, in the process of a merger or repositioning its brand will likely land above that range while a stable, referral-driven firm in a mature practice area may land below it.

Benchmark data remains a useful defense for a CMBDO when a finance committee member suggests an across-the-board cut without understanding the reasoning behind current spending, but the strongest argument is almost always tied to specific initiatives and expected outcomes rather than an industry percentage.

AI Belongs in the Budget

No conversation about 2027 budgets can avoid AI. In the LMA/Above the Law survey, 70% of legal marketing leaders said their department has taken on a greater role in guiding the firm’s use of AI, and 38% reported that AI has already affected how the firm positions and differentiates itself in the market. That shift in responsibility belongs in the 2027 budget conversation, regardless of whether the CMBDO’s title includes “technology.”

At the same time, AI spending remains a modest share of overall firm revenue. A Bloomberg Law study of Big Law found that firms spent roughly 0.11% of overall revenue on AI last year, with every firm surveyed expecting that figure to rise. Adjusted proportionally for mid-size and regional firms, AI investment should grow as use is identified and adopted, not due to a false need to keep up with larger and more profitable firms. Firms handling this at a steady pace will build a dedicated AI and marketing technology adoption plan, tie it to specific department needs such as content drafting support, competitive intelligence, client analytics or pitch personalization, and plan to increase the allocation as tools mature.

Team Structure Comes Before Tool Selection

Few CMBDOs walk into a budget meeting arguing the team has too many people. The more common truth is a leader tasked with getting the utmost out of the team already in place while attorney headcount and client demands keep climbing. Law.com notes an industrywide expectation to “decouple growth from headcount,” meaning firms expect their marketing departments to increase productivity without increasing team size.

The strongest staffing conversations weigh skills and capability alongside headcount. Where can AI-enabled tools handle repetitive work such as first-draft content preparation and routine reporting, freeing staff for relationship-driven business development? Where does the team need a skill set that doesn’t exist internally today? Law.com reports that AI-enabled legal professionals, any employee who uses AI daily, including non-attorneys, commanded an average 14% compensation adjustment in late 2025 and into 2026, evidence CMBDOs can cite when building the case for retention-driven pay increases.

The competition for experienced marketing and business development talent continues to intensify. In hubs such as New York, Washington, Chicago, Los Angeles, Boston and London, firms compete on seniority and titles in addition to salary. According to a study by Ambition, the Washington market is offering base salaries for business development and marketing directors reaching an estimated $300,000 to $475,000 in 2026, and a majority of placements now involve professionals stepping into more senior roles rather than making lateral moves. That same competition is building in secondary markets such as Atlanta and cities across Texas and Florida as law firms expand into these secondary markets. CMBDOs building the 2027 budget should benchmark compensation against a national or international talent pool rather than local peers alone.

Flexibility and Measurement Built In

A rigidly built budget limits the marketing department’s ability to adapt in a fast-moving, competitive environment. Firms with durable budgets reserve a flexible allocation, typically 10% to 15%, that leadership can direct toward opportunities that arise during the year: an AI tool that proves its value, an unexpected lateral hire needing rapid integration support, or a crisis requiring a communications strategy and execution. CMBDOs should implement quarterly reviews that track spending against this fund and reallocate it as priorities change.

CMBDOs should build measurement into the budget document itself. For every major line item, define up front what success means and what metrics will be used to measure that success, whether through proposal win rates, website engagement tied to specific practice pages, media placements or client retention metrics. This strengthens credibility with finance and executive committees and creates the record needed to justify or adjust spending when the 2028 cycle begins.

Assume the chief financial officer or chief operating officer will question every number and be prepared to defend your budget. For any new or increased line item, the CMBDOs who walk in ready with the business case, the reasoning behind the requested amount, the expected outcome and how it will be measured, and, where relevant, the cost of not making the investment are most likely to get budget approval.

Conclusion

Creating the 2027 budget is less about spreadsheets and more about aligning spending with what the firm is trying to accomplish. The CMBDOs who connect every dollar to firm strategy, invest in AI deliberately rather than reactively, right-size teams around capability rather than headcount alone, and walk into every conversation with the data to defend it position themselves to succeed in this cycle. Handled this way, the budget becomes the CMBDO’s strongest tool for proving the marketing and business development function’s value, earning executive confidence and positioning the firm for durable growth well beyond 2027.