Comparison

Fractional CMO vs. full-time CMO: when each is the right call.

Both can run growth. They cost different amounts, take different lengths of time to start, and carry different risk profiles. Below: the trade-offs, written for founders who don't need to be sold to.

Side-by-side

Eight dimensions, side-by-side.

Cost, time-to-start, commitment, risk, and what each role actually owns.

Stronger choice in this row (highlighted by use-case, not absolute winner)

Dimension	Fractional CMO	Full-time CMO
All-in cost	£5–7.5k/month (~£60–90k/year)	£120–180k base + 0.5–1.5% equity + on-costs
Time to start	Days	6 months to hire, 12 months to ramp
Commitment	3-month minimum, rolling thereafter	Permanent, 3-month notice on either side
Risk if it doesn't fit	Low: end the engagement, no severance	High: recruitment fee, equity dilution, 3-month notice
Time on the seat	1–2 days a week	5 days a week + leadership presence
Team management	Yes, but limited bandwidth	Yes, full ownership
External representation	Limited, focused on operating	Yes: investors, partners, hires
When it's right	Pre-£10m ARR, growth stuck, no senior owner yet	Post-£10m ARR, growth proven, ready to scale a marketing org

UK hiring maths

Total cost of a full-time UK CMO in year one.

Founders compare retainer lines to salary lines. The honest comparison needs employer costs, recruiter fees, and ramp, not just the base number on the job spec.

Worked example

Take a £120k base. Employer National Insurance is broadly 13.8% on earnings above the secondary threshold (~£16.6k on this band in 2025/26 terms; verify with your payroll). Pension auto-enrolment employer contribution is often 3–5% of qualifying earnings (£3.6–6k on a £120k base depending on scheme rules). Specialist CMO search fees commonly land around £24–36k (20–30% of first-year cash compensation). Add three to six months of ramp where pipeline impact is still building. That first year is rarely "just" £120k.

Contrast with fractional anchors

Published fractional anchors: £5k/month (1 day/week) and £7.5k/month (deeper support) with a 3-month minimum. See the UK cost page and ROI calculator . Rather than a like-for-like replacement for a five-day executive, this is a bridge that buys senior judgement and an operating system without the full employment stack.

Line item	Full-time CMO (illustrative year 1)	Fractional (illustrative 12 months)
Cash compensation	£120k base (+ bonus if offered)	£60k at £5k/mo · £90k at £7.5k/mo
Employer NI + pension (order of magnitude)	Often ~£20–25k combined on this base (confirm with payroll)	N/A (B2B services engagement)
Recruitment	Often £24–36k for senior marketing search	None in this model
Commitment / exit	Permanent: notice, severance risk, equity grants	3-month minimum then rolling, with a scope-led exit

Pick a fractional CMO when…

£1M–£20M ARR or clear post-PMF traction
Founder still carrying revenue decisions
You need senior judgement now, but a 6-month hire cycle is too slow
You're not yet sure what shape the full-time CMO role should take
You want to de-risk the next senior hire by getting the system in place first

Pick a full-time CMO when…

Post-£10m ARR with proven growth
Marketing has its own org chart and the role is clearly scoped
External presence (analyst calls, partner relationships, recruiting) is part of the role
Equity-based compensation is a real motivator for the candidate
You can absorb 6 months of hiring + 12 months of ramp

The bridge pattern

Fractional first, full-time later: the cleanest path for most teams.

A fractional CMO is a different shape of help from a full-time executive, not a like-for-like replacement. Many founders use a fractional CMO as the bridge: 6–12 months of embedded leadership while they recruit, then the fractional CMO hands off the operating system to the new full-time hire. Cleaner than starting cold.

Book free 20-min call → See the Fractional CMO scope →

FAQ

Questions founders ask before they choose.

Is a fractional CMO cheaper in the UK?

Usually yes on first-year cash and employment risk, when you compare a retainer to the true cost of hiring. A £120k base marketing leader often lands around £170–200k+ in year one once employer National Insurance, pension auto-enrolment, recruiter fees, and a realistic ramp are included, before equity. A 12-month fractional engagement at published anchor pricing is typically lower cash cost, with a 3-month minimum instead of permanent notice periods. Use your own payroll and recruiter quotes for board-ready numbers.

Can a fractional CMO bridge into a full-time hire?

Yes. The most common pattern: fractional CMO embeds for 6–9 months, builds the operating system, scopes the full-time role accurately, helps interview, then hands off cleanly. The new CMO inherits a working system instead of starting from zero.

Will a fractional CMO sit in board meetings?

Sometimes, by exception. Fractional engagements are scoped on operating impact, not external representation. Investor calls and board meetings are typically the founder's job until the full-time CMO is in place.

What's the per-hour cost difference?

Closer than you might expect. £5k/month for ~32 hours is roughly £156/hour, in the same territory as a £150k full-time CMO once equity, on-costs, and ramp time are factored in. And the fractional version starts in days, not months.

Also worth reading: Fractional CMO vs. agency · Full Fractional CMO scope and pricing · WSS Fractional CMO service