Fractional CMO, agency or in-house: what does each cost in the UK?

You have reached the point where marketing cannot stay a side job for the founder. The firm turns over a few million pounds, referrals still bring in most of the work, and somebody needs to own how new clients are won. The usual answers are a fractional chief marketing officer (CMO), an agency, or your own hire. Each comes with a very different bill, and a very different call on your time.

The prices are easier to compare than they were. UK fractional CMOs now publish their rates: Leadership Services, a UK provider of part-time marketing directors, puts day rates at £750 to £1,400 in 2026, and says a full-time CMO costs £200,000 to £230,000 a year once pension, National Insurance, bonus and benefits are added. Agencies publish less, but independent research gives usable ranges.

This guide sets out what each option costs in the UK, what you get for the money, who does the work, how fast each can start and where the risks sit. Then it covers the mix most founder-led firms with £1m to £20m+ revenue end up with. Our own fees are on what it costs.

#How much does each option cost in the UK?

A fractional CMO costs £3,000 to £7,000 a month, an agency £1,250 to £16,750 a month depending on scope, and an in-house hire from a £30,000 salary for a new marketing manager to about £175,000 a year all in for an experienced director. The ranges below come from published UK pricing guides and salary data. Several come from firms that sell the service, so treat them as what sellers say the market charges.

Fractional prices rise with the size of the firm, because the job gets bigger. Leadership Services gives £1,795 to £4,500 a month for firms with £1m to £5m revenue, usually one to two days a week; £4,500 to £8,000 for £5m to £15m; and £8,000 to £15,000 for larger firms needing three to four days a week, the point at which many appoint full-time instead. VCMO puts retainers for firms above £5m revenue at £8,000 to £15,000 or more. At the other end, James McCracken, a fractional CMO and Fellow of the Chartered Institute of Marketing, prices senior day rates from around £500 and puts two days a week at roughly £48,000 to £72,000 a year.

Agency fees depend on scope and location. Whito's research, updated in September 2026, says small and medium firms should expect to start at £1,000 to £2,000 a month for meaningful agency work, and that a 12-month contract might be 10 to 15% cheaper per month than rolling ones. Leadership Services puts the realistic total cost of an agency retainer for a £5m to £10m business at £6,000 to £10,000 a month once tool markups, scope creep and management time are counted.

#What does an in-house marketing hire really cost?

More than the salary. Employer National Insurance and pension alone add about a sixth to a mid-level salary, before recruitment, tools and management time. The National Careers Service puts a marketing manager's pay at £30,000 for a starter and £65,000 for someone experienced. Employers then pay National Insurance at 15% on earnings above £5,000 a year in 2026 to 2027 (GOV.UK), and at least 3% of qualifying earnings into a workplace pension (GOV.UK).

For example, a marketing manager on £50,000 costs about £58,000 a year in salary, employer National Insurance and minimum pension alone. Recruitment fees, software, training and your time directing them come on top. McCracken puts the overheads on a marketing director at 25 to 35% of base salary once benefits, bonus and recruitment are included, and Leadership Services says hiring a full-time CMO takes 12 to 20 weeks of executive search, a recruitment fee of 25% to 30% of base and about six months before the person is fully productive.

The first hire also shapes what you get. Carter Murray, a marketing recruiter, says most early-stage businesses "benefit more from a strong Marketing Manager who can combine strategic thinking with hands-on delivery" than from a VP of marketing or CMO, and that a generalist is often the best first hire. In our experience, a senior hire with no team often spends the first year doing a manager's work at a director's salary.

#What do you actually get for the money?

The biggest difference is who does the work. A fractional CMO decides and directs; an agency executes; an employee does whatever you point them at, within one person's range of skills.

A fractional CMO rarely includes the doing. Leadership Services tells buyers to budget separately for marketing technology (typically £500 to £3,000 a month for a £5m to £15m business), paid media, and the freelancers or agencies the CMO brings in. So the true cost of the fractional route is the retainer plus a delivery budget.

An agency brings a bench of skills but rarely owns the plan. Leadership Services, which sells the fractional alternative, describes agencies as "strong on execution, weaker on strategy ownership, and rarely accountable to your board." That is a seller's view, but it matches the common complaint in our page on agencies that send reports, not customers.

An in-house hire knows your clients, sits in your meetings and costs the same whether the work lands or not.

#Which option carries the most risk?

Each fails in its own way. The fractional route fails when nobody carries out the plan. The agency route fails when you pay for activity that nobody ties to enquiries. The in-house route fails when you hire the wrong level: a junior with no direction, or a director with no team.

In our experience the two costliest mistakes are hiring a full-time director before there is a team for them to lead, and paying an agency to set strategy when it is set up to execute. Both are avoidable if you decide what job needs doing before you choose who does it. We look at how AI tools have changed what is worth paying an agency for in whether to keep paying a marketing agency now that AI can do the work.

#What mix suits a firm with £1m to £20m+ revenue?

A mix, in most cases. One senior person owns the plan, specialists do the work, and one person inside keeps it joined up. The mix shifts with size.

A further route is an outside growth team that runs specific parts end to end, such as the website, reputation and pipeline, with one person inside as owner. That is how we work, and our comparison with hiring a marketing team sets out when hiring is the better answer. If sales is the real gap, not marketing, see when to make your first sales hire.

#How do we choose between them?

Decide the job first, then price each route for a full year. The method below takes an afternoon.

#Step 1: Write down the job, not the title

List what needs to happen in the next twelve months: a clear position, a website that wins enquiries, trade coverage, outbound, reporting. Mark each as strategy (deciding) or execution (doing).

#Step 2: Count the work in days a month

Estimate the days each task needs. If strategy needs two days a month and execution needs fifteen, you need a small amount of senior time and a lot of doing, which points to a fractional lead plus delivery, not a director.

#Step 3: Price each route for a full year

For example, a fractional CMO at £4,000 a month is £48,000 a year, plus the freelancers or agency who do the work. A marketing manager on £50,000 is about £58,000 a year before recruitment and tools. An agency at £3,000 a month is £36,000 a year, plus someone inside to brief it. Add your own management hours to each.

#Step 4: Name one owner inside the business

Whatever you buy, one person inside must own the result, brief suppliers and report to you. Without that, several suppliers end up with nobody in charge.

#Step 5: Agree what success looks like at three and six months

Write down the enquiries, meetings or pipeline you expect, and check them against your own records, not a supplier's dashboard. Nobody can guarantee what a market or an AI assistant will do; a provider can guarantee effort, reporting and outcomes it controls, such as meetings held.

#What to do this month

1. List the marketing work for the next twelve months and mark each item as strategy or execution.
2. Estimate the days a month each needs, and who could do it today.
3. Price three routes for a full year, including tools, freelancers and your own time.
4. Decide who inside the firm will own marketing, whichever route you choose.
5. Ask any fractional CMO or agency you speak to for their minimum term, notice period and a sample monthly report.

#Frequently asked questions

#Is a fractional CMO worth it for a firm under £5m revenue?

Often, if the firm needs direction more than labour. Leadership Services prices this band at £1,795 to £4,500 a month for one to two days a week, and says the model fits best between £1m and £25m revenue. Budget for the people who will do the work as well, because the retainer rarely covers it.

#What is the difference between a fractional CMO and an interim CMO?

A fractional CMO works part time for as long as you need, often alongside other clients. An interim CMO works full time for a fixed period, usually to cover a gap or lead a change while you recruit a permanent director. Interim roles cost more per month because you are buying every day of the week.

#Fractional CMO or marketing consultant: what is the difference?

A consultant usually advises and hands over a report or plan. A fractional CMO owns the plan and its delivery, manages suppliers and staff, and reports to the board as part of the leadership team. Ask which one you are being offered, whatever the title says.

#Can a fractional CMO manage our agency?

Yes, and it is one of the best uses of the role. Leadership Services says the two are often used together, with the fractional CMO setting strategy and managing the agency. Make sure the CMO has the authority to change the agency's brief.

#Should our first marketing hire be junior or senior?

Senior enough to work without daily direction, practical enough to do the work. Carter Murray recommends a strong marketing manager and a generalist for most first hires. If you want senior thinking as well, pair that hire with a fractional CMO for a few days a month.

#Can an agency or fractional CMO guarantee results?

Nobody can guarantee what buyers or an AI assistant will do, so be wary of anyone guaranteeing a place in ChatGPT's answers. A provider can guarantee effort, reporting and the outcomes it controls, such as meetings held. Ask exactly what is guaranteed and how it will be counted.

Whichever route you choose, it pays to know what is working now before you buy more of it. A free Growth Review is 30 minutes with David Adams and three fixes in writing, and our own fees are on what it costs.

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