Andrew Crossley
DECISION FRAMEWORK

Fractional CPO vs Full-Time CPO

Cost, commitment, stage-fit and risk: the exact framework I use with UK founders deciding whether to hire full-time or start fractional.

A fractional CPO gives you the same seniority as a full-time CPO for 1-2 days a week, usually at £4k-£10k a month, with no equity and no severance risk. A full-time CPO costs significantly more once salary, equity, employer costs and recruiter fees are included, but gives you full-time attention and direct management of a growing PM team. The right choice depends mostly on stage, PM headcount and board expectations, not preference alone.

Dimension
Fractional CPO
Full-Time CPO
Typical UK cost
£4k-£10k / month retainer
£150k-£220k base + equity
Commitment
1-2 days per week, 3-month minimum
Full-time, permanent
Stage-fit
Pre-seed, seed, between-hires
Series A+, multi-product
Ramp time
Shipping in week 1
3-6 month recruit + 90-day onboard
Risk if wrong
Cancel with 30 days' notice
6-figure severance, 6-month rehire
Owns the team
Coaches PMs, doesn't line-manage
Line-manages PM/design/analytics

DECISION MATRIX

Match the choice to your situation

Factor
Choose fractional
Choose full-time
Stage
Pre-seed / seed / between hires
Series A and later
Budget
Under ~£10k/month for product leadership
Can absorb a £200k+ fully-loaded package
Number of PMs
0-1, no day-to-day line management needed
2 or more, needs direct management
Board expectations
Board accepts a part-time advisor for now
Board expects a named, full-time executive
Speed to start
Need someone shipping within days
Can afford a 3-6 month search
Risk of a bad hire
Want to be able to exit in 30 days
Confident enough in fit to commit long-term

Choose fractional if…

  • You're pre-seed or seed and haven't found PMF yet
  • You need product strategy but not a 40-hour product function
  • You're between hires and want to run a proper recruit loop
  • Your team is 1-15 people
  • Runway is under 18 months

Choose full-time if…

  • You've raised a proper Series A
  • You have multiple product lines needing a single owner
  • PM hires need day-to-day management
  • The board expects a named executive on product KPIs
  • You need consistent full-context ownership of investor & customer relationships

TOTAL COST OF OWNERSHIP

What each option really costs

Fractional pricing below reflects real UK retainer rates. Full-time figures are indicative UK market ranges only, not quoted rates, and vary by company size, location and candidate.

Cost element
Fractional
Full-time (indicative)
Base salary
£150k-£220k (indicative UK market range)
Retainer
£4k-£10k / month
Equity
None required
0.5%-2% typical, indicative and highly variable
Employer NI
None (contractor)
~13.8% of gross pay, indicative
Pension contribution
None
3%+ auto-enrolment minimum, indicative
Recruiter fee
None
20-30% of first-year salary, indicative
Notice / exit cost
30 days' notice
Notice period plus possible severance

For a fuller breakdown of fractional pricing in the UK, see fractional CPO cost in the UK or the wider role scope on fractional Chief Product Officer.

WHEN TO SWITCH

Signals it's time to switch from fractional to full-time

  • You've closed a Series A and product now has board-level scrutiny.
  • You have 2+ PMs who need consistent day-to-day management.
  • Multiple product lines or segments need a single accountable owner.
  • The fractional CPO is at capacity and turning down scope.
  • Investors are explicitly asking for a named, full-time product executive.
  • You need someone embedded 5 days a week in cross-functional planning.

HANDOVER

How a good handover works

1

Document the strategy

The fractional CPO writes down the current product strategy, roadmap rationale and open bets so nothing lives only in their head.

2

Write the job description together

Use what's actually needed at the next stage, not a generic CPO template, to define the full-time role.

3

Run or support the search

The fractional CPO can help screen candidates for genuine fit against the roadmap and team, not just pedigree.

4

Structured overlap

A short overlap period where the fractional CPO introduces the new hire to the team, board and key metrics before stepping back.

FAQ

Common questions

Is a fractional CPO cheaper than a full-time CPO?
Yes, usually 20-40% of the fully-loaded cost of a full-time CPO (£150k-£220k base plus equity, benefits and recruiter fees, all indicative UK market ranges). A fractional CPO on a £4k-£10k/month retainer covers 1-2 days a week with no equity dilution and no severance risk.
Can a fractional CPO become full-time?
Sometimes, but the best fractional engagements end with a clean handover to a full-time hire: the fractional CPO helps write the JD, run the loop and onboard the new leader rather than defend their retainer.
When should we switch from fractional to full-time?
Typical trigger is Series A funding combined with 2+ PMs who need day-to-day management, multiple product lines, or a board that expects a named product executive.
What does a full-time CPO actually cost once you include everything?
Beyond base salary, budget for employer NI (~13.8%, indicative), pension contributions, equity, and a recruiter fee of roughly 20-30% of first-year salary if you use an agency. These are indicative UK market ranges, not quoted figures.
Does a fractional CPO manage the product team directly?
Typically they coach and set direction for existing PMs rather than formally line-managing them. Full line management usually sits with a full-time CPO or VP Product.
What happens if the fractional engagement isn't working?
Fractional retainers are usually cancellable with 30 days' notice, which is the main risk advantage over a full-time hire that requires notice periods and possible severance if it doesn't work out.

Start with a fractional engagement

Ship a validated MVP and set the operating cadence in 90 days.