How much does a fractional CMO cost?
A fractional CMO typically costs $5,000 to $15,000 per month in the United States for an ongoing engagement, with lighter advisory arrangements running $3,000 to $7,000 and senior, deeply embedded ones reaching $20,000 or more. Hourly and project rates also exist, roughly $200 to $500 an hour, though the ongoing monthly engagement is the common structure. The range reflects seniority, hours, and authority, what the role is actually being asked to own, far more than any published rate.
Cost tracks what the role owns, not the hours it logs. A fractional CMO is priced as senior judgment, the same way a full-time chief marketing officer is, which is why the range is wide and why an hourly frame misleads. You are paying for the decisions and the accountability, and those do not scale neatly with time. The cheap end of the market is usually advisory only, a senior name to consult without the authority to direct the work, which is the version that does the least. Set against the alternative, the math is the whole point of the arrangement: a full-time CMO runs $250,000 to $400,000 a year all-in, and the fractional model exists to give a smaller business that level of senior judgment at a fraction of the commitment.
Where this matters
What moves the number is straightforward: hours per month, the seniority and record of the person, and how much authority and scope the role carries. A fractional CMO running ten hours as an advisor costs a fraction of one embedded two days a week and accountable for the whole marketing function. The honest test of the price is the match between what is paid and what the role is empowered to own. A low fee for a role given no authority just buys advice that gets ignored. Comparison shopping on rate alone misreads the purchase, the same way it does when buying decisions rather than hands.
For how the practice structures senior marketing leadership, see Practice.