How much does a Fractional COO cost in the UK? (2026)

The headline numbers (UK, 2026)

• Day rate: £900 to £1,800 per day. Most credible operators sit at £1,200 to £1,500.
• Monthly retainer (1 day/week): £3,500 to £5,500 per month.
• Monthly retainer (2 days/week): £6,500 to £10,000 per month.
• Operational diagnostic (2 to 4 weeks): £6,000 to £12,000 fixed fee.
• Defined transformation project (3 to 6 months): £25,000 to £75,000 fixed fee, sometimes with outcome-linked element.

What drives the variance

1. The operator's track record

A Fractional COO with Board-level operating experience inside SMEs comparable to yours commands the top of the range. Operators with consulting backgrounds but limited line operational experience typically price lower. Operators who have been in the seat (not advising the seat) for material periods of time charge more, and are usually worth it.

2. Business complexity

A single-channel UK ecommerce business at £2m is simpler operationally than a £10m multi-channel business selling DTC, Amazon UK, Amazon EU and wholesale across two warehouses. Same operator, materially different scope, different price.

3. International scope

Add Pan-EU FBA, US market entry, IOSS compliance, foreign-currency exposure, and you are adding operational complexity that takes more senior time. International remits price higher.

4. People management load

If the Fractional COO is expected to actively manage a senior operational team (Head of Ops, Supply Chain Manager, Customer Operations Manager), that consumes more time than an advisory remit and prices accordingly.

5. Engagement length and commitment

A six-month retainer at 2 days per week prices more favourably per day than a three-day discovery engagement. Operators reward commitment because it reduces their pipeline cost and lets them invest more deeply in your business.

The full-cost comparison

For a £6m UK ecommerce business considering its senior operational gap:

• Option A: Hire a full-time COO. £160k base + 25% bonus + £15k benefits = £215k. Plus recruitment fees (£25k to £40k typical). First-year cost £240k to £255k. Annual ongoing £215k.
• Option B: Fractional COO at 2 days/week. £8,000/month = £96k annualised. No recruitment cost. Engaged inside two weeks.
• Option C: Fractional COO at 1.5 days/week + Head of Operations (mid-senior). £6,000/month Fractional + £65k base Head of Ops = £137k annualised. The Fractional provides senior leadership; the Head of Ops provides day-to-day execution.

Option C is the most common configuration for businesses in the £4m to £12m range. The senior leadership and execution capacity are decoupled and matched to actual need.

What should be included (and what should not)

Should be included as standard

• Fixed days per week of senior operational leadership.
• Attendance at the leadership team meeting and any board operating reviews.
• Ownership of the operational agenda and roadmap.
• Out-of-hours availability for material operational decisions (within reason).
• Scope and oversight of senior operational hires.
• Regular written commercial reporting.

Usually charged separately

• Travel time and expenses beyond a defined radius.
• Material project work that sits outside the retained scope (large transformations, M&A diligence).
• External representation requiring significant time (industry events, investor roadshows).

How to interpret the cheap end of the market

There are operators advertising Fractional COO services at £2k to £3k per month. Before engaging, ask:

• What is the actual day commitment? (Often it is half a day.)
• What is the operator's actual line operating experience? (Often it is consulting or coaching.)
• Is there a real leadership team seat, or is this an advisory call once a fortnight?

There is a place for advisory engagements at the lower price point. But it is not the same product as an embedded Fractional COO retainer, and treating them as interchangeable is how businesses end up paying for a label without getting the role.

The honest framing

A Fractional COO is not cheap. They are cheaper than the alternative (a full-time COO), and they are significantly more impactful than the alternative below them (consultancy without execution). For most £1m-£20m UK businesses with a real operational gap, the maths works. For businesses where the operational gap is imagined rather than real, no engagement model fixes that.