Financial Controller: What They Do, When to Hire One, and What It Costs
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Financial controller: what they do, when to hire one, and what it costs
What a financial controller does, how the role differs from a CFO and a bookkeeper, and what an outsourced controller costs.
In short
A financial controller owns the accuracy of a company's books: the monthly close, financial reporting, internal controls, and compliance. They sit above the bookkeeper and below the CFO. A controller makes the numbers right; a CFO decides what to do with them. Most startups need controller rigour before a full-time CFO, on an outsourced basis.
A financial controller is the senior accountant who owns the accuracy of a company's books: the monthly close, financial reporting, internal controls, and compliance. They are not the same as a CFO. A controller makes sure the numbers are right; a CFO decides what to do with them. For a growing startup, the controller is often the hire that comes before the CFO, and increasingly it is filled on an outsourced basis rather than in-house.
The full-time version is a real salary line: the US median annual wage for accountants and auditors was $81,680 in May 2024, and for financial managers $161,700. This guide explains what a financial controller does, when a startup needs one, and what an outsourced controller costs, with the cost shown as a transparent estimate.
Key Takeaways
- A financial controller owns the accuracy of the books: close, reporting, controls, and compliance.
- A controller is not a CFO. The controller makes the numbers right; the CFO makes decisions from them.
- Most startups need controller-level rigour once bookkeeping alone stops keeping the books investor-ready.
- An outsourced financial controller is estimated at roughly $2,000 to $6,000 per month, or about $150 to $250 per hour, well below a full-time hire.
- The controller is usually an earlier need than a CFO, and the same provider can often scale toward fractional CFO support later.
- There is no official dataset for outsourced controller fees; treat any published range, including this one, as a planning estimate rather than a quote.
- A bookkeeper records transactions; a controller owns the systems and controls that make those records reliable.
What is a financial controller?
A financial controller is the person accountable for the integrity of a company's financial records. They sit above the bookkeeper and below the CFO. Where a bookkeeper records transactions, the controller owns the systems and controls that make those records reliable, and where a CFO sets financial strategy, the controller produces the accurate numbers that strategy depends on. In a startup, the controller is the reason the monthly financials can be trusted by a board, a lender, or an investor.
What does a financial controller do?
The role centres on accuracy and control rather than strategy. Core responsibilities include:
The monthly close. Owning the close process and shortening it, so financials are ready in days rather than weeks.
Financial reporting. Producing accurate monthly statements: profit and loss, balance sheet, and cash flow, on a GAAP basis.
Internal controls. Building the checks that prevent error and fraud, from approval workflows to reconciliations.
Compliance and audit readiness. Keeping the books aligned with accounting standards and ready to hand to auditors or a CPA.
Overseeing the accounting team. Directing bookkeepers and accountants and selecting the systems they work in.
Financial controller vs CFO vs bookkeeper: who does what?
| Role | Owns | Focus |
|---|---|---|
| Bookkeeper | Recording transactions | Accuracy of entries |
| Financial controller | Close, reporting, controls | Accuracy of the whole system |
| CFO | Strategy, forecasting, fundraising | Decisions from the numbers |
The distinction matters when you are deciding what to hire. If your numbers are late or unreliable, you need controller-level rigour. If your numbers are clean but you lack a plan for cash, fundraising, or forecasting, you need a CFO. Many startups need the controller function first, then add fractional or interim CFO capacity on top as they approach a raise. For the wider comparison, see CPA vs CFO.
When does a startup need a financial controller?
The trigger is usually the point where bookkeeping alone stops being enough: the monthly close is slow or slipping and financials arrive weeks late, the books are no longer clean enough to hand to an investor or lender without rework, transaction volume or entities have outgrown a single bookkeeper, or an audit, funding round, or systems migration is on the horizon and the numbers need to hold up.
For most seed-to-Series-B startups, this arrives before the need for a full-time CFO. The controller makes the books investor-ready; the CFO makes the strategy investor-ready. They are sequential needs as often as simultaneous ones.
What is an outsourced financial controller?
An outsourced financial controller is a controller function delivered by an external firm rather than a full-time employee. The firm owns your close, reporting, and controls on a monthly basis, usually alongside bookkeeping, giving a startup senior accounting oversight without the cost of a full-time hire. It is the common model for companies that have outgrown basic bookkeeping but do not yet need, or cannot yet justify, an in-house controller. The same firm can often scale the engagement up toward fractional CFO support as the company grows.
How much does an outsourced financial controller cost?
The figures below are an estimate for budgeting, built by anchoring on verifiable government salary data for the full-time equivalent, then comparing pricing published directly on the websites of firms that offer controller services, rather than repeating a figure from a secondary source. The methodology is set out below the table.
| Option | Estimated cost | Best for |
|---|---|---|
| Outsourced controller (monthly) | $2,000 to $6,000 per month | Ongoing close, reporting, and controls |
| Outsourced controller (hourly) | $150 to $250 per hour | Variable or project-based needs |
| Full-time controller (benchmark) | Roughly $80,000 to $160,000+ salary, plus benefits | High-volume, complex in-house need |
How did we estimate these ranges?
First, the verifiable anchor: a full-time controller sits between an accountant and a financial manager on the pay scale, so its salary floor is the data above, and loaded with benefits a full-time hire costs meaningfully more than the salary line, which is why an outsourced engagement is priced below that annualised cost. Second, rather than take a number from a blog, we reviewed rates published directly on the websites of firms that provide controller services and took the central band, setting aside outliers and pure-bookkeeping packages. Your actual cost depends on transaction volume, number of entities, reporting frequency, and industry complexity.
Estimated example
A Series A company adds controller oversight
A Series A company running two entities has outgrown its bookkeeper. The monthly close takes three weeks, and the last board pack contained errors that the founder had to correct live. Rather than hire a full-time controller, the company engages an outsourced controller at $4,500 a month to own the close, rebuild the reconciliations, and produce clean monthly financials.
Within two months the close lands in five business days and the board pack is trusted without rework. At roughly $54,000 a year, the cost sits well below a loaded full-time controller salary, and the company keeps the flexibility to scale the engagement toward fractional CFO support as it approaches its Series B. These figures are illustrative, built on the methodology above.
What should you look for in an outsourced controller?
Prioritise startup and stage experience, since a controller who knows GAAP for your model, whether SaaS revenue recognition or inventory, adds value faster than a generalist. Look for a defined scope, clarity on what the monthly fee covers and what is billed separately, avoiding the common trap of a headline price that excludes work you actually need. Favour a path to CFO-level support, since a firm that can add fractional or interim capacity later saves you re-onboarding when needs grow, and systems fluency, comfort in your accounting stack and the ability to optimise it rather than just operate it.
What do founders get wrong about hiring a controller?
The most common mistake is waiting too long. Founders keep stretching a single bookkeeper past the point it can hold, so by the time a controller is finally brought in, the engagement starts with months of cleanup rather than ongoing management.
A second error is comparing outsourced controller pricing as if every quote covers the same scope. A low headline monthly fee that excludes reconciliations, multi-entity consolidation, or audit support ends up costing more once the add-ons are billed than a clearly scoped higher quote would have.
Third: not planning the path to CFO-level support. Founders bring on a controller reactively when the close breaks, then have to re-onboard an entirely new provider for CFO work months later when a raise or complex forecasting need arrives, when the same firm could often have scaled up instead.
Frequently asked questions
What is the difference between a financial controller and a CFO?
A financial controller owns the accuracy of the books: close, reporting, and controls. A CFO owns strategy, forecasting, and fundraising. In practice the two are sequential for most startups: you add controller rigour once the books need to be reliable, then add CFO capacity when you need a plan built on them, often keeping both once you scale.
How much does an outsourced financial controller cost?
As an estimate, roughly $2,000 to $6,000 per month, or about $150 to $250 per hour, depending on transaction volume, entities, and reporting needs. These are planning ranges, not a quote.
Does a startup need a controller or a bookkeeper?
A bookkeeper records transactions; a controller owns the systems, close, and controls that make those records reliable and investor-ready. A startup usually starts with a bookkeeper and adds controller-level oversight once the close slips or the books stop holding up to outside scrutiny.
Can an outsourced controller become a CFO?
The role does not convert, but many firms scale the engagement. An outsourced controller relationship can add fractional or interim CFO capacity as a company approaches a raise, so the same provider covers both the accuracy of the books and the strategy built on them.
What's the takeaway on hiring a financial controller?
A financial controller is the hire that makes a startup's numbers trustworthy, and for most companies it is an earlier need than a CFO. Whether in-house or outsourced, the controller owns the close, the reporting, and the controls that let a board, a lender, or an investor rely on your financials. Budget from the estimated ranges here, hire when the close starts slipping or the books stop holding up, and choose a provider that can grow with you toward CFO-level support.
Explore related Fintera content
- Interim CFO vs Fractional CFO vs Contract CFO, the engagement models a controller relationship often scales toward as a company grows
- Accounting for Startups, the broader accounting setup a controller function sits on top of
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