Do I Need a CFO for My Startup? A 2-Minute Self-Assessment

What a CFO for your startup actually does

A CFO is not a better bookkeeper. Bookkeeping records the past; a CFO works on what happens next. The core of the job is a financial model you actually run the company on, a runway and cash forecast you trust, fundraise preparation (the model, the metrics, the data room, and the answers investors will push on), board and investor reporting, and the pricing and hiring decisions that determine whether the model comes true. At a startup, that also means being the person who tells you the uncomfortable number early, while there is still time to act on it. Our guide to what a fractional CFO actually does breaks the role down deliverable by deliverable.

Your three options, and what each one costs

Bookkeeper only. Roughly $250 to $2,500 per month depending on transaction volume. This is the right answer earlier than most founders expect: if you are pre-raise with modest burn and no board, your priority is accurate, monthly-closed books, not strategy. Everything a CFO does later depends on this layer being clean. See our startup bookkeeping services for what good looks like.

Fractional CFO. $2K to $20K per month, with most seed to Series A companies paying $4K to $10K for 10 to 40 hours a month of senior finance work. This is the wide middle where most funded startups live: you are raising or recently raised, burning $25K+ a month, and your board expects real reporting, but a $200K+ full-time hire would consume a painful share of that burn. Crossing $75K in monthly burn is a common trigger point, because at that spend rate forecasting mistakes get expensive fast. Our fractional CFO cost guide covers pricing models in detail.

Full-time CFO. $200K to $400K in total compensation. Typically justified at $10M+ ARR or around Series B to C, when finance becomes a daily job: managing a team, owning the audit and banking relationships, and running the next raise as a near-full-time project. If that is you, a fractional engagement can bridge the gap, but the honest advice is to start the full-time search. Our article on when a startup should hire a CFO walks through the transition.

The pattern across hundreds of startups is consistent: bookkeeper first, fractional CFO once fundraising and burn create real forward-looking work, full-time once scale makes finance an everyday function. The assessment above is StartupCFO's honest read on where your answers place you today, including telling you when you should not hire anyone like us yet.