What is a fractional CMO?
What a fractional CMO is
| Role | What you are buying | Who owns the result | Typical term |
|---|---|---|---|
| Fractional CMO | Leadership and the decisions | They do | 90 days, then monthly |
| Marketing consultant | Analysis and a recommendation | You do | Project |
| Interim CMO | A seat filled while you recruit | They do, temporarily | 3 to 9 months, full time |
| Marketing agency | Production against your plan | You do | Monthly retainer |
If the person you are hiring is not accountable for a number, you have hired a consultant, whatever the contract says.
What a fractional CMO decides
Where the money goes
What you sell, and at what price
Which engines get built
What winning means
What one costs
Open the retainer bands by revenue
| Your revenue | Typical monthly retainer | What it covers | Billed separately |
|---|---|---|---|
| $1M to $3M | $5,000 to $7,500 | One constraint at a time. Usually offer, paid, or measurement. | Ad spend, software |
| $3M to $6M | $7,500 to $12,000 | Full channel mix plus the measurement rebuild. | Ad spend, software, production |
| $6M to $10M | $12,000 to $15,000 | Full marketing ownership plus team direction. | Ad spend, software, production |
A $10,000 retainer with $8,000 of media behind it is an $18,000 month. Any operator who will not split those two lines is hiding one of them from you. Full cost model with assumptions on the fractional CMO page.
How I run the seat differently
Who should hire one, and who should not
Hire a fractional CMO if
- You are between $1M and $10M with proven demand.
- You are already spending and cannot tell what works.
- A strategist handed execution to someone else and the plan drifted.
- Every marketing decision routes through you.
Hire something else if
- You are pre-revenue. You need customers, not a CMO.
- You have a validated plan and need production volume. That is an agency.
- You need someone on site five days a week. That is a full-time hire.
- You want to keep the decisions and buy advice by the hour. That is a consultant.
Questions owners ask next
What is a fractional CMO in one sentence?
A senior marketing executive who owns your strategy, budget, and channel mix on a part-time retainer, and who is measured on the revenue number rather than on deliverables. At ROI.LIVE that starts at $5,000 a month and includes the team that executes the work.
How is a fractional CMO different from a marketing consultant?
A fractional CMO decides and is measured on the result. A consultant analyzes and recommends, then leaves the decision and the execution with you. If the person you are hiring is not accountable for a number, you have hired a consultant whatever the contract says.
How much does a fractional CMO cost in 2026?
Published US retainers run $1,000 to $40,000 a month. ROI.LIVE starts at $5,000 and most engagements land between $5,000 to $15,000. Ad spend, software, and production are billed separately at cost, never marked up.
Fractional CMO or marketing agency: which do I need?
An agency executes a plan you already have. A fractional CMO decides what the plan should be. Buying both separately means paying two margins and refereeing them when results stall. ROI.LIVE collapses the two into one owner on one invoice.
Is a fractional CMO worth it at $2M in revenue?
At $2M, yes, if the person executes. A pure advisor at $5,000 to $15,000 a month adds a briefing bottleneck, because nothing moves on the days they are not there. One honest caveat: below roughly 13 hours a week of executive attention, a fractional CMO costs more per hour than a full-time hire would.