Last updated: October 27, 2026
Interim Controller Services: Contract Controllers for a Close, an Audit or a Transition
An hourly interim controller in the seat within weeks, running the close, the auditors and the ERP cutover until your next controller is hired.
An interim controller is a contract hire who takes the controller seat full time, hourly, to cover a resignation, a failed close, an audit or a PE ownership transition until a permanent controller starts. Bill rates run $112 to $148 an hour at mid level, median $127, under the KORE1 Contract Rate Index 2026-Q4.
Last updated: October 27, 2026
The controller seat does not get a grace period. The close still runs on the fifth business day, the bank still wants its covenant certificate, and if a PE sponsor just took the company over, the new monthly reporting package is due whether or not anyone is sitting in the chair. Somebody has to own it. Not next quarter.
An interim controller is the fix. Full time. Hourly. In the seat fast enough to run the next close instead of watching it slip. That is a different hire from a controller staffing search for a permanent seat, which runs six to ten weeks end to end, and it sits one rung below interim CFO services for companies missing the whole finance chair rather than just the controller. KORE1 places both through its accounting and finance staffing desk. Three triggers show up most: a resignation with two weeks’ notice, a close that is already broken, and an audit or PE transition with a fixed date on the calendar.
What an Interim Controller Owns in the First 30, 60 and 90 Days
Day one is access, not strategy. Bank signatory changes, ERP and sub-ledger logins, the AP and payroll approval queues, and a sit-down with whoever has been closing the books by hand since the last controller left. None of that is glamorous. All of it is overdue.
Thirty days in, the interim has run one full close end to end and can say, in writing, where it lost time. Sixty days in, the close is faster. Reconciliations are current. The audit or diligence request list has an owner next to every line instead of a question mark. Ninety days in, there is a handover document a permanent hire or a returning controller can actually use.
ERP cutovers add a fourth clock. If the company is mid-migration when the controller leaves, the interim needs to know the chart of accounts and the sub-ledger mapping before touching anything. No exceptions. A close built on a half-converted general ledger produces numbers nobody should sign.
Interim, Fractional or Permanent Controller: Which One Fits
Three questions settle it. Is the seat actually empty? Weeks or a year? And does the close need someone full time, or a few senior hours layered on top of a team that already closes the books.
An empty seat with a close due inside thirty days needs an interim. Simple as that. A seat that is filled but under-resourced, where the team closes fine but nobody senior is checking the judgment calls, usually fits a fractional controller better. A seat with no deadline pressure and time to run a proper search points toward a permanent hire through controller staffing.
Devin Hornick, Partner at KORE1, puts the appeal of the contract model plainly: “The contract allows that company, you can get them quick, it’s flexible, to scale up, to scale down as needed.” That flexibility is exactly what a seat with a known end date, a cutover, an audit, a bridge to a hire, needs and a permanent seat does not.
Still unsure which lane fits your situation? The longer breakdown in our guide to contract, interim and fractional engagements walks through the gray areas, and the close replay diagnostic is the faster way to find out whether the close itself, not the org chart, is where the time is actually going.
Interim Controller Bill Rates, 2026
National bands from the KORE1 Contract Rate Index 2026-Q4, effective October 16, 2026, modeled from BLS OEWS May 2025 wages and a 24% employer burden. Full methodology at the KORE1 contract rate methodology page.
| Role | Bill range | Median | 3-month cost | 6-month cost |
|---|---|---|---|---|
| Controller, junior | $92 to $116/hr | $100/hr | $51,800 | $103,500 |
| Controller, mid level | $112 to $148/hr | $127/hr | $66,100 | $132,300 |
| Controller, senior | $145 to $178/hr | $165/hr | $85,900 | $171,900 |
| Senior accountant | $77 to $94/hr | $87/hr | $45,300 | $90,600 |
| Financial analyst, FP&A | $72 to $94/hr | $82/hr | $42,400 | $84,800 |
All cells Modeled (BLS OEWS May 2025 × 24% burden × KORE1 bill bands). Source: KORE1 Contract Rate Index 2026-Q4.
The hourly number is not pay. It carries a roughly 24% burden on top of base pay, which is payroll taxes, workers’ compensation, general liability insurance and sick leave accrual, so the client never runs its own payroll for the hire. The IRS Employer’s Tax Guide, Publication 15, lays out the federal piece of that burden. Want the whole model, by level and by metro, rather than just the national cut? The 2026 Contract Rate Card breaks it out further.
Most engagements land on the shorter side of that table. Three months is common. Shorter happens too. Six months shows up when an ERP cutover drags, or when the permanent search runs long.
When Companies Call for an Interim Controller
Four situations cover almost every interim controller search KORE1 runs. Each starts differently.
A resignation with short notice
The most common call. The close date does not move just because the notice period is two weeks.
A close that is already broken
Books running weeks behind. Reconciliations stacking up. Nobody can say what the real numbers are.
An audit with a fixed date
Fieldwork does not wait for a hire. The auditors need one senior person answering requests every day.
A PE transition or ERP cutover
New ownership wants its monthly reporting package built their way, often before the permanent team is hired.
Need the seat above instead? Interim CFO services cover a vacant finance chief chair. Need the close diagnosed before deciding what to staff? Start with the month-end close diagnostic.
Common Questions
How much does an interim controller cost per hour?
A mid-level interim controller bills $112 to $148 an hour nationally, median $127, which runs about $66,100 for a three-month engagement. Senior controllers bill $145 to $178 an hour, median $165, about $85,900 over three months. Figures are from the KORE1 Contract Rate Index 2026-Q4, effective October 16, 2026.
What does an interim controller do in the first thirty days?
The first thirty days are access and one full close cycle, not strategy. Bank and ERP access, a review of the last close, and a written list of where time is actually leaking. Day sixty brings a faster close and current reconciliations, and day ninety leaves a handover document the next controller can use.
Is an outsourced accounting firm or an interim controller better for a PE portfolio company?
It depends. Owned or just supported? An interim controller sits inside the company, signs what the seat signs, and runs the team day to day, while an outsourced firm supports the function from outside without taking the seat itself. A PE sponsor that wants one accountable person in the chair for a transition usually chooses the interim.
What is inside the hourly bill rate?
About a 24% burden on top of base pay. Not a markup. A burden. That covers employer payroll taxes, workers’ compensation, general liability insurance and sick leave accrual, all of which the client never has to run through its own payroll for a contract hire.
Can an interim controller convert to a permanent hire?
Yes. It happens often. Devin Hornick, Partner at KORE1, explains the threshold directly: “If this person completes 1,040 hours, then they are eligible to convert over to full time with that particular company at no additional charge from KORE1.” Below 1,040 hours, a direct-hire conversion runs 20% of base salary with a 60-day replacement guarantee.
How fast can an interim controller start?
Three days, median, from offer to start, across 1,997 KORE1 contract placements. Fast. That speed is the whole case for calling the week a resignation lands instead of waiting for the notice period to run out.
Tell Us What’s Due and We’ll Scope the First 90 Days
Send the close calendar, the ERP in use and the reason the seat is open. A recruiter will scope the engagement and come back with candidates and a bill rate.
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