Decision guide
Bookkeeper, controller or CFO: which one you need now
Most owners ask for the title when what they have is a symptom. This page starts from the symptom and ends at the role, with the revenue band each one usually sits behind.
The short answer
A bookkeeper makes the numbers right. A controller makes them arrive on time and mean something. A CFO uses them to decide what to do next. Each one needs the one before it to be working, which is why hiring a CFO on top of unreliable books buys you an expensive opinion about numbers nobody trusts.
Start with the symptom
| If this is the problem | What it is | Usual size |
|---|---|---|
| Bookkeeping | The books are behind or unreliable and you need them right. | Under about $3m, one or two entities. |
| Catch-up bookkeeping | Months or years behind, and a deadline is coming. | Any size. This is a project, not a role. |
| Monthly close | The books are fine but the close lands whenever it lands. | $2m and up, or any size with a lender. |
| Controller | A decision is waiting on a number nobody owns. | Roughly $3m to $20m. |
| Fractional controller | You need controller work, not a controller salary. | $3m to $15m, or a few locations. |
| Outsourced controller | You want the whole function run by someone else. | $5m and up, or several entities. |
| Fractional CFO | Pricing, capital, a board, or a sale is on the table. | $10m and up, or any size raising money. |
| Interim CFO | Your CFO left and the close still has to happen. | Any size, for three to nine months. |
| Sale preparation | You are 12 to 24 months from selling. | Any size with an exit in view. |
Revenue bands are a guide rather than a rule. Complexity moves them: several entities, several locations, inventory, grant funding or government contracts all pull the next role forward.
The order matters more than the title
The sequence is always the same. Books current, then a close you can set your calendar by, then reporting that explains the margin, then the forward work. Skipping a step does not save time, because the step you skipped is what the next one runs on.
A business that cannot close by the tenth cannot forecast, because the forecast starts from a number that is still moving. A business without location-level reporting cannot tell you which site to fix, because the loss is hidden inside the total.
Questions owners ask before they choose
When is a bookkeeper enough?
A bookkeeper is enough while the question you are asking is whether the books are right. One entity, a few dozen transactions a week, no lender asking for monthly statements, and nobody waiting on a report to make a decision. Most owners stay here until somewhere between $1m and $3m of revenue.
What does a controller do that a bookkeeper does not?
A bookkeeper records what happened. A controller owns the close, the reporting and the accuracy of what the numbers say, which means the close lands on the same date every month and the margin analysis behind it is somebody's job. The move usually happens when a decision is waiting on a number, or when a lender starts asking.
When does a business need a CFO instead of a controller?
When the questions stop being about the past. Pricing, capital, an acquisition, a board, a sale. A controller answers what happened and why. A CFO works on what to do next, and needs a controller underneath to have anything reliable to work from.
What is the difference between fractional, outsourced and interim?
Fractional means part of a week, ongoing. Outsourced means an external team owns the function rather than an employee. Interim means full-time but temporary, usually covering a departure. The work is the same; the shape of the arrangement is not.
Can we start with catch-up work and decide later?
That is the usual order. Books that are behind have to be brought current before anyone can tell you what the business is doing, and a cleanup often answers the staffing question by itself.
Work through it with your own numbers
- Fractional CFO evaluatorWhether the next hire is a controller or a CFO.
- Finance Leader Deployment DiagnosticWhere the finance function stands today.
- Bookkeeper vs controller vs CFOThe long version, with what each one owns.
- What a good monthly close looks likeThe first thing to fix, whichever role comes next.
Want this done on your own numbers?
Averan does the bookkeeping, the close and the reporting behind everything on this page. A short call, and we will tell you honestly whether we can help.
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