Fractional CHRO services — sold in the UK just as often as fractional HR director services — put a senior people leader into the business part-time. Exec Capital publishes a fractional retainer of £4,000–£12,000 a month, and a fractional HR Director day rate of £600–£1,200, rising to £1,800 at PE-backed, mid-market and listed level.
This page covers what the seat owns, where the HR Director shape ends and the CHRO shape begins, and what the published benchmarks say.
A fractional CHRO service puts a senior people leader into the business on an ongoing part-time commitment.
In the UK the same service is sold as a fractional HR director service, and as with finance the titles track company size more than scope — HR Director at smaller headcount, CHRO or Chief People Officer at larger.
The scope is the people system, not HR administration.
A fractional CHRO owns organisation design and the headcount plan, the compensation and levelling framework, performance and progression, employee relations at the level that reaches the board, and the culture questions that only show up in retention data.
Payroll, contracts, onboarding logistics and day-to-day HR queries belong with an HR manager, an outsourced HR provider or a people operations platform.
The distinction matters commercially because the two are priced an order of magnitude apart.
Buying a CHRO to run HR operations is the most expensive way to process a holiday request; buying HR operations when the problem is organisation design leaves the problem untouched.
If you are hiring rather than buying a service, see Fractional CHRO Jobs UK and Fractional CHRO Salary.
Organisation design and the headcount plan — what roles exist, at what level, in what order, against the commercial plan. Compensation and levelling — bands, progression and the equity story, built so they survive being published internally. Performance and management capability — the layer that decides whether a growing company keeps its people. Board-level employee relations and the risk that comes with it. Culture, measured — retention, regretted attrition and what they are telling you.
Payroll, contracts, onboarding administration, holiday and absence, and day-to-day employee queries.
That is an HR manager, an outsourced HR service or a people platform, and it costs a fraction of a CHRO day rate.
Treat them as one service at two price points.
An HR Director engagement leans operational — process, compliance, the management layer.
A CHRO engagement leans strategic — organisation design, compensation architecture, the board.
Robert Half’s 2026 UK benchmarks put the HR Director median at £110,250 and the CHRO median at £147,000, which is roughly the size of the gap in practice.
If the question is "how do we process this", it is HR operations. If it is "what should this company look like at twice the headcount", it is a CHRO. Both are legitimate purchases; only one of them is this one.
Weekly cost at the midpoint of Exec Capital’s published UK fractional HR Director day rate of £600–£1,200 — midpoint £900 (FACTS 48). Figures are that midpoint × days per week. The published fractional retainer band on the same source is £4,000–£12,000 a month (FACTS 195).
Every figure below is published by the named source. Exec Capital publishes the fractional bands; Robert Half and Robert Walters publish the permanent benchmarks. Nothing here is a derivation.
| Benchmark | Published figure | Source |
|---|---|---|
| Fractional HR Director day rate | £600–£1,200 | Exec Capital (48) |
| PE-backed / mid-market / listed | to £1,800/day | Exec Capital (48) |
| Interim HR Director day rate | £500–£1,800 | Exec Capital (195) |
| Fractional CHRO retainer | £4,000–£12,000/mo | Exec Capital (195) |
| Contract Chief People Officer, London | £900–£1,500/day | Robert Walters (195) |
| UK HR Director salary, median | £110,250 | Robert Half (194) |
| UK CHRO salary, median | £147,000 | Robert Half (194) |
| London CPO, 50–250 headcount | £140,000–£190,000 | Robert Walters (195) |
| London CPO, 250+ headcount | £180,000–£450,000 | Robert Walters (195) |
The three ways a UK company gets senior people leadership, on the dimensions that decide between them.
| Metric | Fractional CHRO service | Outsourced HR | Full-time CHRO hire |
|---|---|---|---|
| Published UK cost | £4,000–£12,000/mo by days | A monthly fee, well below a CHRO day rate | £147,000 median salary plus employer costs |
| What you are buying | Organisation design and the people system | HR operations and compliance | Both, full-time |
| Sits on the leadership team | Yes | No | Yes |
| Owns compensation architecture | Yes | Administers it | Yes |
| Best when | The people question is structural | The machinery needs running correctly | Headcount makes the seat full-time work |
| Exit | Notice, or convert to core | Notice period | Redundancy or resignation |
Three situations where a part-time people leader beats both outsourced HR and a permanent hire.
Headcount has grown faster than management capability, and the people leaving are the ones you wanted to keep. That is an organisation-design problem, not a recruitment one.
Bands were set by negotiation rather than design, and the inconsistency is now visible internally. Fixing it needs an architecture and someone who has defended one before.
An acquisition, a restructure or a redundancy programme. Legally consequential, culturally decisive, and not a first-time job.
Five stages: qualification, mandate fit, reference deep-dive, shortlist and analysis, kick-off. Our fee is 12% of engagement value and is only triggered when you sign — the shortlist costs nothing if you do not hire.
How we take a founder or board's brief and turn it into a delivery system across core, fractional, network, and outsourced functions.
CONFIRM — REAL PROCESSStage · pressure · the work nobody is doing.
We run The Team Architect on every brief. Stage, headcount, sector, pressure. The output is the org shape we'd build with you — including the seats to hold for now. We turn briefs down here, gracefully, when the answer is 'not yet'.
Core. Fractional. Network. Outsourced.
Each function gets a verdict and an intensity. Engineering core. Finance fractional at 2.5 d/wk. Paid-media on the network. IT helpdesk outsourced. We commit to days, IR35 status, and replacement terms in writing before search starts.
Network-first. Outbound where it needs to be.
Fractional candidates have portfolios, not job alerts. We run from our own network plus a structured outbound for the senior end. Shortlist in 8–12 days. Honest scoring against the rubric — no padding.
First-week plan. Success criteria. IR35 live.
Calibration calls. Onboarding plan written down. IR35 structure live before day one. We sit in the first cross-functional meeting if it helps. The replacement guarantee runs for 90 days.
Quarterly cadence. Bridge to core when right.
Monthly check-ins for the first quarter, quarterly after. We surface when a fractional should convert to core (Series A → Series B finance is the modal moment) and we own the bridge. Replacement, conversion, off-ramp — it's all the same firm.
Common questions about fractional CHRO Services roles and engagements
Current openings and market opportunities
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Additional tools, guides, and role information
More of the same shape — internal.
