What is Minimum Engagement Size?

Minimum engagement size is the lowest project value or monthly retainer amount your agency will accept from a new client. This threshold exists because every client relationship carries fixed overhead costs—onboarding, communication, project management, invoicing, and account management—regardless of project size. If the engagement is too small, these fixed costs consume a disproportionate share of revenue and erode profitability. Setting the right minimum requires understanding your cost structure. Calculate the average cost of onboarding a new client, managing the relationship, and delivering work. If your overhead per client is $2,000 regardless of project size, a $3,000 project leaves only $1,000 for actual delivery profit, while a $15,000 project spreads that overhead across a much larger revenue base. Most agencies find that their minimum should be set at a level where overhead costs represent no more than 15-20% of the engagement value. Communicating your minimum professionally is important. Rather than simply stating a dollar figure and turning prospects away, frame it around the value you deliver. Explain that to achieve meaningful results and provide the level of service your clients expect, you have found that engagements below a certain threshold do not allow sufficient resources. Then offer alternatives—perhaps a smaller-scoped engagement that fits the minimum, a productized service package, or a referral to another provider better suited to their budget. Your minimum should evolve as your agency grows. Raising your minimum engagement size is a natural part of scaling, reflecting increased expertise, higher operating costs, and a focus on clients who can benefit most from your services. Many agencies review and adjust their minimum annually, typically increasing it as demand grows and the team becomes more specialized.