An interim controller is a senior accountant who runs your accounting function for a fixed period, usually three to nine months. The role owns the month-end close, the general ledger, inventory and cost accounting, and audit readiness. You bring one in while you search for a permanent hire or work through a project like an ERP conversion.
Controllers are hard to find right now. According to Robert Half’s 2026 Finance and Accounting Hiring Outlook, 61% of finance and accounting hiring managers say skilled professionals are harder to find than a year ago. In the same survey, 63% expect to engage more contract talent. Unemployment for financial managers sat at 1.8% in May 2026. When your controller resigns, your replacement search runs into that market.
What does an interim controller own?
An interim controller owns the accounting operation end to end. That means the close, the general ledger, inventory and cost of goods sold, plant costing, audit preparation, ERP cleanup, and trade deduction reconciliation. In a consumer brand, the inventory and trade pieces separate a real controller from a bookkeeper with a bigger title.
Start with the close. According to Ledge’s 2025 month-end close benchmark, half of finance teams take longer than five business days to close, and 27% take more than seven. A controller who lands the close by day five gives your CFO and board current numbers.
Inventory and COGS come next. Your controller sets standard costs, books purchase price and usage variances, reconciles physical counts to the ledger, and reserves for obsolete stock. At an owned plant or a co-manufacturer, that extends into plant costing: yield, scrap, labor absorption, and the true landed cost of each SKU. Get this wrong and your gross margin is a guess.
Then trade deductions. Retailers short-pay invoices for promotions, slotting, fines, and damages. Someone has to match each deduction to the trade plan, clear the valid ones, and dispute the rest before the clock runs out. Unreconciled deductions sit in receivables and quietly overstate your cash position.
Audit prep and ERP cleanup round it out. The controller builds the PBC list and ties every balance sheet account to support. Then the chart of accounts and item master get cleaned so the system stops fighting the team.
When should a consumer brand bring in an interim controller?
Bring one in the week you learn your controller is leaving, or the moment a close slips past day ten for the second month running. Five triggers cover most of the calls we take from food, beverage, beauty, pet, and cannabis brands.
| Trigger | What is at stake | Typical engagement length |
|---|---|---|
| Controller resigns with two to four weeks’ notice | The next close, the audit calendar, lender reporting covenants | Four to eight months, often converting to permanent |
| Plant controller gap at an owned facility or co-manufacturer | Standard costs, variance reporting, inventory accuracy, gross margin visibility | Six to twelve months |
| Annual audit or ERP conversion | Audit findings, delayed opinions, a go-live that corrupts historical data | Three to six months around the event |
| Growth past a bookkeeper | Accrual accounting, a first real close, GAAP financials for lenders and investors | Six to nine months while you define the permanent role |
| Pre-fundraise or pre-sale cleanup | Quality of earnings, working capital adjustments, buyer confidence in the numbers | Three to six months before diligence opens |
Plant controllers deserve a separate note. Manufacturing clients ask us for plant controllers and FP&A analysts often. A plant controller sits at the facility, not at headquarters, and reports operational cost data daily. Losing one during a capacity ramp or a co-man transition leaves you blind on margin for a full quarter.
How does the role differ from an interim CFO or a fractional CFO?
A controller records and reports what happened. A CFO decides what happens next. The controller runs the close, the ledger, and the audit. An interim CFO runs capital, forecasting, banking, and board reporting, full-time for a defined period. A fractional CFO does the CFO work part-time, on an ongoing basis, often across several companies.
The distinction matters when you diagnose the gap. A sub-$100M distillery we spoke with had a controller who kept clean books and closed on time. What the owner lacked was FP&A and commercial finance: a distributor margin model, pricing analysis by channel, a rolling forecast. Replacing the controller would have solved nothing. The owner needed a finance leader above the controller, and the controller stayed on the close. We cover that senior role in our post on interim CFO services for consumer brands and the part-time version in what a fractional CFO does.
Rates reflect the difference. Senior interim and fractional executives in our placements bill roughly $1,000 to $2,000 or more per day. Controllers bill by the hour, for far less.
What does an interim controller cost?
Expect $120 to $155 per hour all-in W2 for a corporate controller, $80 to $100 for a plant controller, and $75 to $90 for an interim accounting manager. Those figures start from published salary data converted to hourly pay. Then add the professional contract markup of 35 to 50%, which covers payroll taxes, benefits, and the firm’s fee.
According to Robert Half’s 2026 Salary Guide, a corporate controller earns $152,000 at the low end, $185,000 at the midpoint, and $213,250 at the high end. Divide the midpoint by 2,080 hours and you get about $89 per hour in base pay. The high end works out to about $103. Apply the markup and the bill rate lands between $120 and $155.
The same guide lists a plant controller at $111,000, $125,000, and $136,000 across the three bands. That converts to $53 to $65 per hour in pay. An accounting manager runs $96,750 to $127,500, or $47 to $61 per hour. As a cross-check, the BLS Occupational Outlook Handbook reports a median wage of $166,570 for financial managers as of May 2025. BLS projects 10% growth in the occupation from 2025 to 2035.
Put it together for a six-month engagement. A corporate controller at $140 per hour for 960 hours costs about $134,000. There is no retainer. You are invoiced as hours are worked. Compare that with a missed audit deadline, a covenant breach, or a fundraise that stalls because diligence cannot tie out inventory.
How fast can one start?
Five business days from engagement to a presented slate is our standard, and clients typically hire after roughly two interviews. That puts a controller in the seat inside two to three weeks, which is faster than the notice period most departing controllers give.
Speed matters more than people expect. One client called us because its in-house recruiter was leaving within a week and a finance role was open. The pipeline was about to go dark at the same time the seat did. A contract firm with a bench of vetted consumer-brand accountants closes that gap without waiting on a new recruiter to ramp.
Two structural points make the speed possible. First, ace is the employer of record. We run payroll, taxes, workers’ compensation, unemployment, and benefits. That removes misclassification risk and lets you hire in California and New York without building multi-state compliance. Second, we start sourcing without a signed retainer. We cover the timing mechanics in speed to hire in interim executive recruiting.
How do you choose a provider?
Choose the provider whose candidates have closed the books at a consumer brand with trade deductions, co-manufactured inventory, and a retail customer base. Generic accounting staffing firms place controllers who have never seen a retailer deduction or a co-man yield variance. Those controllers learn on your ledger.
Ask four questions before you sign. How many of the last ten controllers they placed worked in food, beverage, beauty, pet, or cannabis? Who is the employer of record? What is the conversion fee if you want to hire the person permanently, and does it decline with assignment length? Ours runs 11 to 21% of first-year salary and drops the longer the engagement runs. And what happens if the fit is wrong in the first two weeks?
Conversion is more common than buyers assume. About 28% of the consultants we place convert to permanent roles, and our contract engagements average around 11 months. Many clients treat the engagement as a working interview. For a fuller vendor checklist, see our buyer’s guide to contract staffing solutions for CPG.
FAQ
How long does an interim controller engagement last?
Most run four to nine months. A resignation cover runs until the permanent hire starts and finishes a handoff, often four to six months. An ERP conversion or audit assignment is tied to the event and runs three to six months. Plant controller gaps run longer, six to twelve months, because the search pool is thinner and the ramp at a facility takes time.
Can an interim plant controller work remotely?
Partly. Cost accounting, variance analysis, and close work can happen remotely. Cycle counts, scrap reviews, and time on the floor with the plant manager cannot. Most of our plant controller placements are hybrid, with two to three days at the facility each week and remote work for the rest. Fully remote works when a strong site accountant already handles the physical side.
Is an interim accounting manager enough, or do I need a controller?
Pick an interim accounting manager when a controller or CFO remains in place to review the close, sign off on judgments, and manage the auditors. Pick a controller when no one above the role can do that review. If a stretched CFO would be the only reviewer, the controller is the safer choice.
Can we convert the interim to a permanent controller?
Yes. Most contracts allow conversion at any point, subject to a fee that declines with assignment length. Ours runs 11 to 21% of first-year salary. About 28% of the consultants we place convert. The best predictor is whether the person has landed three clean closes in a row and your auditors are comfortable working with them.
Need a controller in the seat before the next month-end close? Reach us at https://acetalentcurators.com/get-in-touch/
