Hire a fractional CFO when a money decision is bigger than your books can answer. The usual moments are raising money, a cash crunch, fast growth, a pricing change or a sale of the business. If you only need clean books and your taxes filed, a bookkeeper and a CPA are enough, and they cost far less.
The short answer
A bookkeeper records what happened. A CPA files your taxes and keeps you compliant. A CFO uses those numbers to plan what happens next. You need the third one when the cost of a wrong money decision is larger than the CFO's fee.
As of October 2026, in US dollars, packaged CFO plans start near $1,600 to $1,750 a month at firms like Burkland and Pilot. A senior part-time CFO at about 14 hours a week runs $7,000 to $11,200 a month, according to Go Fractional's rate data. Hold those numbers against the decision in front of you.
Five moments when a fractional CFO pays off
1. You are raising money or asking for a loan
Investors and lenders want a financial model, a forecast and clean answers to hard questions. A CFO builds the model, prepares the numbers for the data room and sits in on the calls. This is the most common reason to hire one for a defined project.
2. Cash is tight and you cannot see why
Revenue is up, but the bank balance keeps dropping. A CFO builds a 13-week cash forecast that shows week by week what comes in and what goes out. Then they find the cause: slow-paying clients, stock tied up, debt payments, or growth that eats cash before it brings any in.
3. You are growing fast
New hires, a second office or a new product line all need money before they earn it. A CFO tells you how much you can spend, and when, without running short. They also set up a budget you can check each month.
4. You are changing your prices
A price change touches margin, cash and how many clients stay. A CFO models the options, shows margin by service or product, and finds the clients or lines that lose money.
5. You are thinking about selling
Buyers look closely at the numbers. A CFO cleans up the reports, separates owner costs from business costs, and prepares you for due diligence. Start a year or more before you want to sell, if you can.
When a bookkeeper or a CPA is enough
- Your revenue is steady and you make no big money decisions this year.
- You can read your profit and loss and balance sheet, and you trust them.
- Your main need is taxes filed on time and books closed every month.
- You have cash for three or more months of costs and no plans to borrow.
- You make pricing and hiring decisions well with the reports you already have.
The SBA's guide to managing finances describes the same split. A bookkeeper handles daily tasks at a lower cost, and a CPA costs more but gives more tailored help. A CFO sits above both.
One more check: a CFO needs clean books to work with. If yours are months behind, hire a bookkeeper first. Otherwise you pay CFO rates for cleanup work.
What they should do in month one
A good fractional CFO shows value fast. Ask for a plan like this before you sign.
- Week 1: read the last 12 months of books, bank statements and contracts. Meet you and your bookkeeper.
- Week 2: list what is wrong or missing in the books, and agree who fixes it.
- Week 3: build a 13-week cash forecast and a short monthly report: revenue, margin, cash, and three numbers that matter to your business.
- Week 4: present findings and agree two or three priorities for the next 90 days, such as pricing, a loan or a budget.
After month one, the rhythm is usually a monthly review of the numbers, plus work on the priorities. If after 90 days you have no forecast and no clear priorities, the engagement is not working.
How long to keep one
The Fractional Work Report 2026 found that most fractional engagements run six to twelve months, and 60% last six months or longer. For a single project, like a loan application, a shorter contract with a clear end makes sense. Agree the end point at the start.
Questions to ask before you hire
- Which companies like mine, by size and industry, have you worked with?
- What did you deliver in your first 30 days for your last client?
- How many hours a month does your fee include, and how many clients do you have now?
- What do you need from my bookkeeper, and what will you not do?
- Have you worked on [a raise / a bank loan / a sale]? What was your part?
- Who can I call as a reference?
- What is the notice period if either of us wants to stop?
Red flags
- They quote before they ask about your books.
- They want a long contract before showing a first-month plan.
- They sell their own loans, investments or software on top of the fee.
- They cannot explain your numbers in plain words.
This is general information. Rules on tax, loans and selling a business differ by country and state, so check the details with your accountant or a lawyer.
Next steps
If cash is the trigger, start with how to improve cash flow. If your books are not ready, read bookkeeping basics. For pricing, see how to calculate profit margin and how to raise prices without losing customers. For growth plans, read how to scale a small business.