Fractional CMO vs Head of Marketing: Which Do You Need?
Choose the role around the work your business needs, rather than the title. Compare UK cost benchmarks, daily responsibilities and tracking readiness before committing to fractional leadership or a permanent head of marketing.
A fractional CMO UK founders hire fits when you need senior marketing judgement and already have people to do the work. A head of marketing fits when your £1m to £50m business has enough daily work for a full-time leader and a team to manage.
Neither appointment gets a fair start without tracking and attribution. Get the measurement working first and you can judge what kind of leadership the business needs, rather than choosing a title and hoping the work follows.
I'd compare both against the actual job, because a recruiter and a fractional provider are selling different answers (and Founder Engine has an offer too). That means separating senior decisions, daily management and the groundwork either person would inherit.
What does a fractional CMO actually do?
A fractional CMO provides senior marketing leadership for an agreed number of days each month. Their remit should cover strategy, priorities, major marketing decisions and direction for your team or agencies.
Primewise, which sells fractional CMO services, describes two to five days a month as the most common arrangement, with four days its standard for growing SMEs. Treat that as a provider's benchmark rather than a rule for your business.
When you're considering a fractional CMO in the UK, establish what happens between their working days. Someone still needs to send the emails, check the forms, follow up enquiries and prepare the reports.
I'd make that division explicit before signing, because senior direction has limited value if nobody has the time or authority to carry it out. Your existing team, agency or freelancers might already provide that capacity. You don't need to replace capable people to give them clearer direction.
What does a head of marketing do that a fractional CMO can't?
A head of marketing gives you daily leadership and responsibility for the team's working week. The role should include managing delivery, coaching people and dealing with decisions that can't wait for the next scheduled visit.
I think that presence earns its cost when work needs managing every day, because small problems don't arrive on a monthly timetable. A broken form, an unanswered enquiry or a campaign that needs pausing requires someone with permission to act.
A fractional leader can agree how those situations should be handled. A full-time head can take responsibility for handling them and helping the team improve the work afterwards.
Recruiting, regular one-to-ones and performance management also need time in the diary. If those jobs are substantial, include them in the hiring brief rather than treating them as extras someone will somehow fit around strategy.
How much does each option cost in the UK?
The cited benchmarks put a four-day fractional retainer at £4,800 to £7,200 a month. Using Ashdown's median salary, a permanent hire costs about £101,000 annually before recruitment.
Fractional CMO vs head of marketing: UK comparison, 2026
| Factor | Fractional CMO | Head of marketing |
|---|---|---|
| Time commitment | Agreed days each month, often four | Full time |
| Typical cost | £4,800 to £7,200 monthly for four days, Primewise vendor benchmark | £66,250 median base from Robert Half to £87,615 from Ashdown, plus employment costs |
| What they own | Strategy, priorities and senior direction | Daily delivery, team management and the marketing plan |
| What they don't usually own | Daily execution and full-team line management | Larger-business board strategy unless explicitly scoped |
| Getting out | Contract terms | Probation terms and employment notice |
| Best when | You need judgement and have delivery capacity | You have daily senior work and a team |
| Risk with broken tracking | Paid days rebuilding reports | Early months rebuilding reports |
Primewise also quotes headline day rates of £1,000 to £2,500 or more. Its retainer works out lower per day, so compare both bases.
For interim cover, 3Search lists £450 to £700 daily for a head of marketing and £1,000 to £2,000 for a CMO.
The employment estimate uses HMRC's 2026 to 2027 rates, employer NI of 15% above £5,000, and The Pensions Regulator's thresholds for the 3% minimum employer pension.
ON3 Works quotes contingency recruitment fees of 15% to 25% of first-year salary. The calculation is in what a head of marketing really costs in the UK.
When is a fractional CMO the better choice?
A fractional CMO is the better fit when your gap is direction and you already have enough people to deliver the agreed work. You need someone to decide what deserves attention, what should stop and how the budget should be allocated.
I'd consider a fractional CMO in the UK when these conditions describe the work:
- Nobody currently owns senior marketing decisions.
- A capable team or agency needs a clearer plan and priorities.
- Decisions about positioning, pricing or the next market need experienced judgement.
- You want to define the permanent role before committing to a hire.
Those conditions don't automatically justify a contract. Ask the candidate which decisions they'll own, what they'll need from your team and how you'll review progress together.
A fractional leader can also help write the eventual hiring brief. That should describe the responsibilities and authority the business needs, rather than a long list of channels copied from another company's advert.
When should you hire a head of marketing instead?
Hire a head of marketing when you've got a team to manage, a steady volume of senior work and measurement that lets the person judge progress. Daily responsibility then becomes part of the job's value.
Two or more marketers, or several suppliers needing weekly management, can justify a closer look at a full-time role. But count the management work itself. Headcount alone doesn't tell you how much leadership is needed.
You should also be able to trace enquiries to their source and connect marketing activity to the sales process. That gives the incoming head something firmer than a collection of channel reports to work with.
If you're still approving routine marketing decisions, decide which authority you'll hand over with the role (we founders can be rather attached to our approval rights). A head of marketing needs room to run the work, including permission to stop activity that isn't earning its place.
What goes wrong with either if your tracking is broken?
Broken tracking makes it harder for either leader to establish a baseline or judge what their decisions changed. They may first need to repair source records, connect reports and agree what counts as a useful enquiry.
With a fractional CMO in the UK, that groundwork can consume the limited days you've bought. With a head of marketing, it competes with the daily management and delivery you've hired them to own.
I'd put measurement ahead of the appointment where possible, because it gives both you and the incoming leader a clearer starting point. You don't need perfect attribution. You do need records reliable enough to support decisions.
The checklist on what to put in place before you hire a marketing director applies to both options. It helps you separate missing leadership from missing access, reporting and responsibility for follow-ups.
Is there an option between the two?
Yes. You can put measurement and a few agreed growth workflows in place before deciding which leader to hire. That gives the appointment a more useful starting point.
That's where The Growth Install fits. It runs for 90 days and installs three agreed growth workflows, each in one agreed area, on your own accounts. Tracking and a dashboard let your team see what's happening, while the people responsible work alongside us to take ownership of the workflows.
It doesn't replace a fractional CMO or a head of marketing, and it doesn't cover every channel. The purpose is to establish agreed work and measurement that your people can keep using.
It may suit you if you know you need senior marketing leadership but can't yet see what the current work produces. If you've already got clean data and a capable team waiting for direction, skip us and hire the leader. There's no reason to add another engagement when the missing responsibility is already clear.
How do you decide in the next two weeks?
Write down what you can measure, what decisions need making and who needs managing. Those answers should shape the role before you speak to candidates or providers.
- Check whether you can trace recent enquiries to a source. If you can't, agree who'll repair the records and how that work will be completed before or alongside the appointment.
- Decide whether your main gap is direction or daily capacity. If people can execute but need senior decisions, consider fractional leadership. If someone needs to run the work each day, consider a head of marketing.
- List the team and suppliers the person would manage. With two or more people or several suppliers needing regular attention, examine whether a full-time role has enough work to justify it.
Share the answers with whoever will approve the budget. Then use the same written brief for each conversation, so you're comparing responses to your business's needs rather than different sales pitches.
I think writing the decision down is worth doing, because it forces you to name the work you're buying. It also exposes responsibilities that would otherwise remain with you after the appointment (usually discovered at the Monday meeting).
Questions founders ask
What's the difference between a fractional CMO, an interim marketing director and a consultant?
A fractional CMO is normally an ongoing, part-time leadership appointment. An interim marketing director usually covers a defined period, often full time, while a consultant advises on an agreed problem. Confirm the responsibilities in the contract, because titles alone don't establish who has authority to act.
Can a fractional CMO manage my marketing team?
They can, if the contract includes it and the time commitment allows for it. Agree who conducts one-to-ones, handles performance issues and makes decisions between the fractional leader's working days. Leaving those responsibilities unspecified can put them back on your desk.
When should a fractional CMO become a full-time hire?
Review the arrangement when agreed responsibilities repeatedly exceed the available days, or the team needs more regular leadership. Ask the fractional leader to help define the permanent role and handover. More fractional days may also be worth considering if the need still falls short of a full-time job.
Is a fractional marketing director the same as a fractional CMO?
The labels can describe similar arrangements, but they don't guarantee the same scope or seniority. I'd judge the person by the decisions they'll own and their relevant work, because a title doesn't establish their fit for your business. Ask for a written remit you can assess.
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