Fractional COO Contract: What Should Be in It Before You Sign

Before you sign a fractional COO contract, check that it names the outcomes the COO is accountable for, the time commitment, the authority they hold and where it stops, the notice period on both sides, how confidentiality and intellectual property are handled, and when and how progress is reviewed. A draft that covers fees and hours but leaves outcomes and authority vague is the most common reason these engagements drift, and it is far easier to fix before signature than after.

What follows is a working checklist for a UK founder holding a draft that someone else has written, whether the provider, an adviser or a template, and it is not legal advice, so anything material should still go past your own solicitor before you commit.

Why the fractional COO contract matters more than the day rate

Founders tend to spend most of their negotiating energy on price, which is understandable but usually misplaced. A fully loaded full-time COO is a large commitment, with Xecute the Vision putting it at $300,000 to $500,000 a year in salary, benefits and equity, and the fractional arrangement is attractive precisely because it costs a fraction of that, but the saving only materialises if the work actually lands. If you want the UK numbers line by line, our piece on fractional versus full-time COO cost covers them, and the point here is simpler: the contract is where you decide whether you are buying hours or buying change.

The pre-signature checklist

A well-defined agreement, according to Genius, typically covers position and responsibilities, term and hours, compensation and billing, performance expectations and KPIs, confidentiality and IP, termination and notice, and non-compete or non-solicitation terms. That list is a sound starting point, and the sections below work through each item with the questions a founder should be asking of the draft in front of them.

1. Scope and outcomes

Look for a short list of outcomes, ideally three or four, written so that someone outside the business could tell whether they had been achieved, such as delivery reporting that the leadership team uses every week or resourcing decisions that no longer route through the founder. A scope that reads "oversee operations" or "support the leadership team" sounds reassuring but gives neither side anything to hold the other to, and it tends to expand quietly into whatever is most urgent each week.

2. Time commitment and term

The draft should state the expected days per week or month, how unused time is treated, and the initial term, because a vague commitment is easy to erode on both sides once the diary fills. If you are unsure what is realistic, our guide to how many days a month a fractional COO works sets out typical patterns for a business of your size.

3. Authority limits and decision rights

This is the clause most drafts skip, and it is the one that causes the most friction later. The contract, or a schedule attached to it, should say which decisions the COO can make alone, which need your approval, and which stay with you entirely, covering things like hiring and dismissal, spending above a set amount, client pricing, supplier contracts and changes to team structure. Without it you will find either that nothing moves because every change waits for you, which is the founder bottleneck you were paying to remove, or that changes happen which you would have wanted to discuss first, and neither outcome is a good use of the fee.

4. Review points and how success is measured

Check that the contract sets a review cadence, for example a short monthly check-in against the agreed outcomes and a more formal review at a fixed point such as the end of the first quarter, and that it says who attends and what happens if progress is off track. The measures should connect to the outcomes in scope rather than to effort, so "days delivered" is a billing measure while margin, delivery on time and decisions taken without the founder are performance measures.

5. Notice periods and termination

Look at notice on both sides, whether it differs during an initial period, and what the COO owes you on exit, such as a handover of documentation, open actions and any processes they have built. A notice period long enough to secure a proper handover but short enough that you are not locked into an arrangement that is plainly not working is the balance to aim for, and it should be symmetrical unless there is a clear reason it is not.

6. Confidentiality, IP and restrictions

A fractional COO will see your financials, pipeline, pricing and people issues, so the confidentiality clause should cover all of that and survive the end of the engagement. Check who owns the operating documents, dashboards and process material created during the work, which should normally be you, and read any non-solicitation terms carefully, since they should protect your staff and clients without being so broad that they would be hard to rely on.

IR35 and off-payroll working, in general terms

Most UK fractional COOs work through their own company or a provider firm, which brings the off-payroll working rules into play, and the contract alone does not settle the question because what matters is how the engagement works in practice. For medium and large private-sector clients, PayFit explains that the end client determines status, and if the engagement is inside IR35 the client or fee-payer must operate PAYE and National Insurance deductions, while incorrect decisions can bring backdated liabilities and penalties of up to 100% of the unpaid tax.

Many firms of 20 to 60 people will count as small and so sit outside those 2021 reforms, in which case responsibility for status rests with the contractor's company, and GT Law notes that from 6 April 2026 the turnover threshold rose from £10.2 million to £15 million and the balance sheet threshold from £5.1 million to £7.5 million, with the headcount threshold staying at 50. The same source lists the key status tests as a genuine right of substitution, mutual obligation, integration into the business, and financial risk and own equipment.

There is an obvious tension here, because a good fractional COO is meant to work inside your leadership team, and integration is one of the factors that points towards employment, so this is an area for proper advice rather than guesswork. HMRC's GOV.UK CEST tool lets hirers check whether IR35 applies to a specific engagement, although the Low Incomes Tax Reform Group points out that it gives only HMRC's view for tax purposes and should not be relied on for employment law.

The contract describes the engagement you intend, but status is judged on the engagement you actually run.

Red flags in a draft fractional COO contract

• Scope written as responsibilities with no outcomes attached.
• No mention of authority, spending limits or decision rights.
• No review date before the first renewal.
• Notice terms that are long, one-sided or silent on handover.
• Ownership of work product left unstated.
• An automatic rolling term with no point at which either side must confirm it is working.

If you have not yet tested the person as well as the paper, our list of questions to ask a fractional COO is a useful companion to this checklist.

Where Vitori fits

Vitori scopes engagements by agreeing outcomes first and then the timescale to deliver them, rather than signing open-ended retainers, which is the same discipline this checklist asks you to apply to any provider, whether Vitori or anyone else. Our fractional COO support works inside your leadership team, implements the changes itself through the Operational Scale Framework and stays accountable until they hold, and it is not the right answer to every operational problem, so if a lighter arrangement would serve you better we would rather say so. If you want to talk through a draft or a scope, you can get in touch with us, and either way the aim is the same: a business that runs, and scales, without the founder in every decision.

Common questions about fractional COO contracts

Should a fractional COO contract include a probation or trial period?

A fractional COO contract does not need a formal probation period, but it benefits from an early review point, often at the end of the first month or quarter, where both sides check progress against the agreed outcomes. That review, paired with a reasonable notice period, gives the founder a clean exit if the fit is wrong without making the arrangement feel temporary.

Can a fractional COO be a company director?

A fractional COO can be appointed as a director, but doing so brings statutory duties and liabilities and can affect how the engagement is viewed for IR35 purposes. Most founder-led businesses keep the role as an officer title without a board seat, and anyone considering a directorship for a fractional COO should take specific legal and tax advice first.

Who should draft the fractional COO contract?

The fractional COO or their firm usually supplies the first draft of the contract, which is fine provided the founder reviews it against a clear checklist and has a solicitor look at the material terms. The founder should insist on adding an outcomes schedule and an authority schedule if the provider's standard draft does not already include them.