How do I calculate my interim day rate?

The most common approach is dividing your expected annual base salary by 220 working days, then applying a 1.1-1.2x loading. This is often summarised as the '1% Rule'—where your day rate equals approximately 1% of your annual base salary. For example, a £200,000 base translates to roughly £2,000/day.

Do interim day rates include holiday pay?

No, interim day rates are all-inclusive. The rate is designed to cover the risk and lack of traditional benefits including holiday pay, pension contributions, sick leave, and bonus eligibility. This is factored into the risk premium model, which applies a 30-40% loading compared to equivalent permanent roles.

What is the average rate for a PE CFO?

Private Equity CFO interim rates typically range from £1,200 to £2,500+ per day, depending on the enterprise value of the business, complexity of the situation (e.g., distressed, carve-out, cross-border), and the individual's track record. Premium rates are commanded by interims with proven PE exit experience or specific sector expertise.

The Economics of Independent Leadership: Pricing Your Asset

In Private Equity and VC-backed scale-ups, independent executives are valued not by traditional salary benchmarks, but by their ability to deliver speed, impact, and scarcity. Whether you deploy as a full-time Interim or a multi-client Fractional leader, day rates reflect the unique demands of value creation. Here is how to price your "Business of One."

The Four Valuation Models

Understanding how to calculate and benchmark independent day rates requires familiarity with the four primary valuation frameworks used across the industry.

1. The "1% Rule"

The most widely cited heuristic in independent operator circles: your day rate should approximate 1% of your base salary at a permanent role. A CFO commanding a £250,000 base would therefore target around £2,500/day. This rule accounts for the lack of equity, pension contributions, and job security.

Formula: Annual Base Salary ÷ 220 working days × 1.1-1.2 loading = Day Rate

2. The Risk Premium Model

This model applies a 30-40% loading to equivalent permanent rates to compensate for the inherent instability of independent work. Unlike permanent roles, independent operators forgo benefits packages worth 15-25% of salary, have no tenure security, and must factor in unbillable time between assignments.

Risk Premium Components: No pension contribution (8-15%), No bonus eligibility (15-40%), No holiday pay, No sick leave, Business development time (15-20%)

3. The Value-Creation Model

In Private Equity specifically, the most sophisticated pricing is outcomes-based. An independent operator brought in to prepare a business for exit isn't priced on market comparables—they're priced on the value they create.

If an independent operator's 100-day program adds £5M to EBITDA, a £3,000/day fee represents just 6% of the value created. This model underpins the premium rates commanded by proven PE operators.

4. The Fractional Premium Model

While Interim roles are typically billed on a full-time, 5-day-a-week basis, Fractional executives deploy for 1-3 days a week across multiple clients. Because the executive must absorb the cognitive load of "context switching," Fractional day rates typically carry a 20% to 30% premium over standard Interim day rates. Many operators convert this into a flat monthly retainer.

The Impact of IR35

IR35 legislation fundamentally changed the economics of interim work in the UK. Understanding whether an engagement is Inside or Outside IR35 is crucial for rate negotiations.

Inside IR35 (Deemed Employment - PAYE)

When determined to be Inside IR35, the interim is treated as an employee for tax purposes while remaining outside the permanent headcount. This requires a 20-25% rate inflation to achieve equivalent take-home pay, as employer's NI and the apprenticeship levy are deducted from the gross day rate.

Outside IR35 (Personal Service Company - PSC)

Genuinely self-employed interims operating through a PSC benefit from more favourable tax treatment, including dividend extraction and legitimate expense deductions. Rates can be lower while achieving equivalent net income, making these engagements more attractive to both parties.

Key IR35 Consideration: Since April 2021, the responsibility for determining IR35 status in medium and large private sector businesses lies with the hiring organisation, not the contractor. This has led to widespread "blanket Inside IR35" policies at corporates, while PE-backed portfolio companies often maintain more nuanced, role-by-role assessments. Understanding your IR35 stance and securing correct corporate insurance is a mandatory part of being Interim Ready in 2026.

Private Equity vs. Corporate Rates

Private Equity interim assignments consistently command a premium over equivalent corporate roles. This reflects several factors unique to the PE environment:

Pace: PE portfolio companies operate on compressed timelines. A carve-out that might take 18 months in a corporate setting needs completing in 6. This intensity commands premium rates.

Pressure: With significant capital at stake and investor reporting requirements, the tolerance for underperformance is minimal. Interims are expected to hit the ground running and deliver measurable results within weeks.

Complexity: PE assignments often involve distressed situations, operational transformations, or integration challenges that require deep expertise and proven playbooks.

Market Benchmark: PE CFO interim rates typically range from £1,200 to £2,500+ per day, with premiums at the higher end for complex situations (distressed assets, cross-border transactions) or larger enterprise value businesses (£500M+ EV).

2026 Role-Specific Benchmarks

While every mandate is unique, our aggregated market intelligence reveals the following standard ranges for PE-backed independent assignments in the UK (excluding VAT and expenses):

CFO (Interim / Fractional)

£1,200 - £2,500+ / day

Premium applied for distressed restructuring, heavy M&A, or exit readiness.

CTO / CPO

£1,000 - £1,800+ / day

Driven by platform re-architecture, post-merger integration, or cyber remediation.

CRO / CMO

£900 - £1,500+ / day

Often structured with a lower base but heavily weighted performance/revenue bonuses.

Turnaround / Programme Dir.

£800 - £1,400+ / day

Dependent on program complexity (e.g., global ERP rollout vs. cost-out execution).

Structuring the Upside: Skin in the Game

In Private Equity, a flat day rate is rarely the end of the commercial conversation. Sponsors want their independent operators aligned with the broader value creation plan. Top-tier executives frequently negotiate "skin in the game":

Completion Bonuses: Often tied to specific deliverables, such as successfully migrating an ERP system by a target date, or hitting a specific EBITDA run-rate.

Exit Bonuses: If brought in specifically to groom an asset for sale, operators may negotiate a flat cash bonus payable upon a successful transaction.

MIP Participation: For longer-term deployments, some sponsors allow independents to buy into the Management Incentive Plan (Sweet Equity).

The Utilization Equation

When transitioning to the "Business of One," a common commercial mistake is calculating target income based on 220 to 250 working days. True financial modeling must account for unbillable time:

The 180-Day Rule: A healthy, sustainable independent career is typically modeled on 180 to 200 billable days per year. The remaining days are consumed by business development, pipeline management, holidays, and maintaining compliance.

If your target gross revenue is £250,000, your day rate at 180 days of utilization must be £1,388/day.

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