A controller owns the integrity of your numbers: the close, the controls, the reporting your leadership team actually trusts. But what does a controller do at a private company, really? And how do you tell a strong one from a senior accountant with a bigger title?
Here’s the short version: a controller runs the month-end close, designs internal controls, produces reliable financial statements, manages cash reporting, and acts as your point person with auditors and lenders. At a private company, they often do all of this with a small team and no CFO above them. Get the hire right and your numbers become a decision-making tool. Get it wrong and you’re dealing with late reports, control gaps, and surprises you only hear about a quarter too late.
This guide is written for the owner or founder making a first controller hire, the moment when the numbers have outgrown a bookkeeper and an external CPA firm but the business isn’t ready for a CFO. If your question is really which level you need, a controller or a senior accountant, that’s a different decision, and we cover it head-on in controller or senior accountant: what your private company needs. What follows here is about the controller role itself: what the job actually involves day to day, and how to recognize a genuinely strong one before you make an offer.
What does a controller do day to day?
A controller makes sure the financial record is accurate, on time, and defensible. In a private company (say a $20M to $150M revenue business in Toronto, Ottawa, or Kitchener-Waterloo), that breaks into six recurring workstreams.
- Close ownership. Month-end and year-end close: journal entries, reconciliations, accruals, and the final sign-off. They own the calendar and the deadline.
- Internal controls. Segregation of duties, approval thresholds, reconciliation discipline. On a lean team, this is harder, not easier.
- Financial reporting. Statements under Canadian standards (ASPE or IFRS), translated for people who don’t read financials for a living.
- Cash and working capital. Cash position, AP/AR cycles, and flagging liquidity issues before they become problems.
- Audit and lender liaison. Coordinating the external audit or review, responding to auditor requests, and keeping covenant reporting on schedule.
- Team leadership. Managing the accounting staff (often two to six people) and setting the standard for how the work gets done.
The close is the heartbeat of the role, and a useful lens on how the finance function is actually running. Ledge’s 2025 close report found that half of finance teams take six or more business days to close, with only 18% finishing in three days or less. A controller who can shorten and stabilize that timeline gives you numbers you can act on while they still matter.
What separates a strong controller from a senior accountant with a title?
The difference is judgment, not task lists. A senior accountant executes the work accurately. A strong controller owns the outcome, anticipates problems, and tells you the truth about what the numbers mean.
Judgment under ambiguity. Revenue recognition questions, tricky accruals, lease classifications. These call for judgment a strong controller makes confidently and documents clearly. The CPA Canada Competency Map treats sound judgment and clear communication as core competencies, not just the ability to compute a figure.
A controls mindset. Strong controllers think about what could go wrong before it does. They build the reconciliation that catches the error, the approval step that stops the duplicate payment. On a private-company team without layers of oversight, this instinct is the difference between clean books and a quiet problem compounding for months.
Business partnering. The best controllers explain the numbers in language the owner and the sales lead actually understand. They connect a margin slip to a pricing decision, a cash crunch to a collections gap. That’s what turns the finance function from a scorekeeper into a real partner.
Systems fluency. A strong controller knows when QuickBooks has run its course and can lead an ERP move without losing a month of clean data along the way. We cover what that hire looks like in our guide to hiring an accountant for an ERP implementation. Ask any candidate about a system change they’ve been through. The answer tells you a lot.
Controller vs. senior accountant vs. director of finance: where are the lines?
The titles blur, but the boundaries are real.
| Role | Owns | Reports to | Typical scope |
|---|---|---|---|
| Senior accountant | Execution of assigned close and reconciliation tasks | Controller or accounting manager | Individual contributor; no sign-off authority |
| Controller | Integrity of the numbers, the close, controls, reporting | Owner, CEO, or CFO | Leads the accounting team; final sign-off on statements |
| Director of finance | Forward-looking strategy: FP\&A, budgeting, planning | CEO or CFO | Broader than accounting; owns the plan, not just the record |
A senior accountant handles pieces of the close; a controller owns the whole close and everything that certifies it; a director of finance looks forward rather than backward. If you want one test, it’s sign-off authority: a controller stakes their name on the statements. We break the controller-or-senior-accountant decision down further in controller or senior accountant: what your private company needs. For comp and experience benchmarks, see our accounting and finance recruitment overview and the 2026 salary guide.
When has the controller role outgrown itself?
The role has outgrown itself when the person owning your numbers no longer has time to look forward. As a company scales (a new acquisition, a financing round, a jump from $50M to $150M in revenue), someone needs to own budgeting, forecasting, and capital strategy full time. That’s a director of finance, and eventually a CFO.
Signs the function needs its next layer:
- Your controller is consistently pulled off the close to build board decks and forecasts, and both suffer.
- You need someone who can model scenarios, not just report history.
- The team has grown past what one person can lead while also owning the close.
- Lenders, investors, or a board expect financial planning your current structure can’t produce.
None of this is a knock on a good controller. The career arc runs Controller → Director of Finance → VP Finance, and it feeds the top seat: an analysis of Forbes Cloud 100 finance leaders by Aleph found 31% started their careers in accounting, more than any other single starting lane. Knowing when to add the next role, rather than stretching your controller until something breaks, is one of the more valuable calls an owner makes. For sequencing, see our guide on building an accounting team: the order to hire finance roles.
What should you screen for when hiring a controller?
Screen for judgment, ownership, and the specific experience your stage of business demands. The best controller hire is someone who has already solved the problem you’re about to face: a first audit, an ERP migration, a lender relationship under real scrutiny.
Four things to cover:
- Real close ownership, not participation. Ask what breaks in their close and how they fixed it. Someone who has owned a close speaks in specifics.
- Controls built, not inherited. Have them walk through a control they designed and explain why it exists.
- The CPA behind the title. A CPA designation and public-accounting or industry experience is the baseline for most private-company controller seats, but the depth behind it matters more than the letters. Our piece on going from public practice to controller covers what to look for.
- Fit for your stage and sector. A controller who thrived in a stable manufacturer may struggle in a fast-scaling, PE-backed business, and vice versa. Match the experience to where you’re headed, not just where you are.
This is the work we do at Minted Search Group. Our accounting and finance team includes CPAs who worked in public accounting and industry finance before moving into recruitment. The screening happens before you ever see a shortlist. We’ve done the close, sat through the audit, and led the team, so we know what a strong controller actually looks like versus a senior accountant with a bigger title.
If you’re weighing a controller search, or just trying to figure out whether the seat is really a controller or a director of finance, talk to our team. We’ll give you a straight read on the market and the role before you commit to anything. No pressure, just possibilities.
FAQs
What does a controller do at a private company?
A controller at a private company owns the accuracy of the financial record. They run the month-end and year-end close, design internal controls, prepare financial statements under ASPE or IFRS, manage cash reporting, and act as the point person for auditors and lenders. At most private companies they lead a small accounting team and report directly to the owner, CEO, or CFO.
What is the difference between a controller and a director of finance?
A controller owns the historical record: the close, the controls, the reporting that certifies your numbers are right. A director of finance looks forward, owning budgeting, forecasting, and financial planning. The simplest test is direction: a controller reports what happened; a director of finance shapes what should happen next. Many growing companies eventually need both.
What should I look for when hiring a controller?
Look for judgment, genuine close ownership, and a controls mindset. Ask candidates what breaks in their close and how they fixed it, have them describe a control they designed, and confirm their experience matches your stage and sector. A controller for a stable manufacturer is a different hire than one for a fast-scaling, PE-backed business.
Does a private-company controller need to be a CPA?
For most private-company controller roles, a CPA designation is the practical baseline, usually paired with public-accounting or industry experience. The depth of hands-on experience behind it matters more than the letters alone, especially for judgment calls on revenue recognition, accruals, and audit response.
How long should a month-end close take?
Half of finance teams take six or more business days to close, and only 18% finish in three days or less, according to Ledge’s 2025 benchmarking survey. Top-performing teams typically close in three to five days. A strong controller works to shorten and stabilize the close so leadership gets reliable numbers while they’re still useful for decisions. A consistently slow or unpredictable close is usually a sign the finance function needs process work, a stronger hire, or both.
