Published: 11.11.2026 | Author: Ray Nicholls | Category: Problems
The question every board asks
Every few weeks, a chair, CEO or PE investor asks me the same question about an interim CFO or Finance Director.
"That's a lot for one day. What am I actually getting?"
It's a fair question, and it deserves a straight answer. The short version is that an interim day rate pays for much more than a day's work. It also pays for less than most people hope. Knowing the difference is what separates interim assignments that change a business from ones that just cost money.
Why "per day" is the wrong way to look at it
The rate isn't really for the day. It's for the first week.
Most boards judge an interim rate against a permanent salary divided by working days. That comparison understates the real cost of an employee. The Institute of Interim Management works it through on a £100,000 base salary: once you add National Insurance, pension, bonus, benefits and paid absence, the total cost is around £165,000, or roughly £790 per working day (IIM, 2025).
The IIM's rule of thumb is that an interim charges about 1% of the equivalent salary per day. That covers what an employee would have cost, plus the interim's own business costs and the gaps between assignments.
Even that comparison misses the point, though. A permanent hire is paid to settle in. An interim is paid to be useful from the first morning. You aren't buying a day of work. You're buying a compressed, front-loaded version of what a permanent hire might deliver in their first six months.
What the day rate actually pays for
Four things sit inside a good interim's rate. None of them shows up on a timesheet.
1. Speed of diagnosis. A seasoned interim CFO can walk into a business they've never seen, read the numbers, read the room and tell you what's really going on by Friday. That isn't luck. It's a skill built by doing the same first week many times over.
2. Pattern judgement. They've seen this situation before: the cash squeeze, the covenant conversation, the finance team that has outgrown its systems, the founder who won't let go of the bank login. That experience lets them see the second-order problem behind the first one.
3. Availability. A strong permanent candidate might need three to six months to work their notice. An interim can usually start within days, because they've chosen a career with no safety net. That gap between assignments is part of what you're paying for.
4. The exit. An interim will leave, and that's a feature. They have no internal politics, no pension, no career path inside your business and no long notice period. That independence lets them say the uncomfortable thing to a board or investor that a permanent hire might hold back.
What it doesn't pay for
A day rate buys capability. It can't buy alignment.
The most expensive interim assignments I've seen weren't the ones with the highest rates. They were the ones where nobody had agreed what the interim was there to do. In a typical case, the investor wanted a reliable 13-week cash forecast and the CEO wanted a sounding board. The chair wanted the finance team restructured. The interim spent the first three weeks working out which brief was the real one, at full rate.
This is the most common way senior finance appointments fail, permanent or interim. The cause is rarely the candidate. It's that the people commissioning the role haven't agreed what success looks like.
There are a few other things no day rate can buy:
Access. An interim can't diagnose what they aren't shown. Restricted systems, a reluctant finance team or a CEO who filters information will slow even the best operator.
Decisions. An interim can frame the options and recommend one. They can't make the board decide.
Ownership after they leave. If nobody is lined up to own the new forecast, process or team structure, much of the work fades within a quarter of the exit.
Agree the first 30 days before you negotiate the rate
The best value from an interim comes from work done before they arrive. Before you discuss the rate, get the investor, CEO and chair to agree written answers to five questions:
What is the one problem this interim must solve first?
What does "done" look like at day 30, and at the end of the assignment?
Who does the interim report to day to day, and who has the final say?
What access will they have to systems, people and the investor?
Who owns the work after the interim leaves?
If those answers differ between stakeholders, you've found your real problem, and it's cheaper to find it now than in week three. A one-page brief that all three have signed off will do more for your return than a lower day rate.
Frequently asked questions
How is an interim CFO day rate calculated? The most common rule of thumb is about 1% of the equivalent permanent salary per day. Complexity, urgency, sector, PE or turnaround experience and how long the assignment will last all move the rate up or down. Here’s a useful Interim Day Rate Calculator.
Why is an interim day rate higher than a permanent salary divided by working days? A permanent salary leaves out the employer's on-costs, such as National Insurance, pension, bonus, benefits and paid leave. Those typically add around two-thirds on top of base pay. The interim rate also covers the interim's own business costs and the unpaid time between assignments.
Is an interim CFO cheaper than a permanent hire? Per day, usually not. Over the life of a defined problem, often yes. You avoid recruitment delays, notice periods, long-term salary commitments and the cost of a permanent mis-hire. Other useful articles: What does an interim CFO actually cost in 2026? And Interim vs permanent CFO: how to decide.
What is the biggest risk with an interim finance appointment? An unclear or disputed brief. When the investor, CEO and chair expect different outcomes, the interim spends expensive time working out which brief is the real one.
How quickly can an interim CFO or FD start? Often within one to two weeks, and sometimes within days. That compares with three to six months for many permanent senior finance hires.
The quiet conclusion
A good interim is worth their rate several times over, but only if you tell them clearly what they're solving. Negotiating the rate is the easy conversation. The harder and more valuable one is getting your investor, CEO and chair to agree on what the first 30 days must deliver.
If you're weighing up an interim finance appointment and want a second opinion on the brief before you commit, I'm always happy to talk it through.
Pitch Hill Partners
Pitch Hill Partners helps investors, boards and CEOs appoint CFOs, Finance Directors, Financial Controllers and FP&A leaders across the UK, on both a permanent and interim basis. If a finance seat has just emptied — or you think it might — get in touch.
