Bookkeeping · Close · Tax Small businesses, startups & ecommerce Updated September 2026

Excello Services

“Excelled People For Excellent Services”

CFO services for startups, without the full-time hire.

Excello's CFO services for startups and small businesses give you a senior finance specialist part-time, for the forward-looking work: cash forecasts, financial models, budgets and the numbers behind big decisions.

The work is built on your live QuickBooks, Xero or Odoo numbers, and your questions are answered within one business day.

A barometer for the forecast An ink drawing of a barometer with a ruled dial and a raspberry needle pointing towards fair weather.


Who fractional CFO services are for

The finance decisions have outgrown the bank balance. You can see what's in the account today, and not what it means for the hire you want to make, the price you haven't raised or the expansion you're weighing.

You've looked at what a full-time finance lead costs and the number doesn't work yet. So you're the one building the spreadsheet late at night, and you're not confident in it.

Once the work is handed over, the model is kept current by someone else, the cash forecast updates without you touching it, and the decision you've been circling gets a number.

What is included in CFO services for startups

Full scope

The engagement covers the forward-looking side of your finances: the model, the cash forecast, the budget and the decisions that hang off them.

Fractional CFO scope and deliverables
What Excello doesWhat you supplyWhat you get back
Financial modelAccess to your QuickBooks, Xero or Odoo, your headcount plan and your pricingA working model of revenue, costs, headcount and cash, with its assumptions written down
Rolling cash flow forecastBank, Stripe and card data, plus any large payments you know are comingA forward view of cash that shows when the balance is lowest
Scenarios and runwayThe decision you are weighing and when it has to be madeWhat a slower, base and faster case each do to cash and runway
Budget and budget against actualTime with whoever owns each spending lineA budget by department, and a review of where actual spending has moved away from it
Unit economicsSales and marketing spend, customer counts and delivery costsThe cost to win and serve a customer, and where margin is going
Hiring and capital planningThe roles or investments you are consideringWhat each one costs fully loaded, what it has to return and when to commit
Working capitalPayment terms with customers and suppliersThe gap between paying and getting paid, and how to close it
Questions between sessionsAn email or a messageAn answer from your finance specialist, within one business day

What are fractional CFO services?

Fractional CFO services meaning

Fractional CFO services are a senior finance professional's time and judgment, bought part-time for an ongoing engagement, not as a salaried hire.

The role is about what happens next. A fractional CFO owns the financial model, the cash flow forecast, the budget and unit economics, and the analysis behind decisions like hiring, pricing or investing.

The role reads the output of bookkeeping and the monthly close, and turns it into a plan. Excello's finance specialists work inside your existing QuickBooks, Xero or Odoo file, so the model runs on your live numbers.

Your bookkeeper tells you what happened. A CFO tells you what it means, and what to do next.

Fractional CFO services for startups, small businesses and software companies

By stage

Startups

Fractional CFO services for startups

The work is dominated by runway: how many months of cash you have, and what changes that number.

  • Runway, updated as the numbers move
  • What a hire or a slow sales month does to cash
  • A model where every assumption is written down

Small businesses

CFO services for small business growth

Usually profitable and growing, but unsure which parts of the business make the money.

  • Margin by product, service or customer
  • What a price change does to margin and cash
  • When a new role pays for itself

Software companies

SaaS fractional CFO services

The finance work turns on the gap between when customers sign and when the cash arrives.

  • Whether an annual prepay discount is worth it in cash
  • How collections timing changes the forecast
  • What each hire has to return, and by when

CFO services for small businesses and startups draw on the same toolkit. What changes is which question comes first.

CFO as a service: how working together runs

The engagement

CFO as a service means ongoing access to a finance specialist, not a one-off report. The work follows the same sequence every time.

  1. Scope

    A call to agree which parts of the scope you need and the first decision you want help with, followed by a written quote.

  2. Access

    Read access to your QuickBooks, Xero or Odoo, and your payroll, payment and card tools where you use them. You keep admin rights throughout.

  3. Build

    Your finance specialist builds the model and the first cash forecast from your live ledger, then walks you through every assumption.

  4. Keep it current

    As each month closes, the model and forecast are updated and the decisions in front of you are worked through, with questions answered within one business day.

How to choose between fractional CFO service providers

A buyer's checklist

Judge fractional CFO service providers on who does the work and what you receive, not on how senior the website sounds. Ask every firm the same questions, Excello included.

Criteria for evaluating fractional CFO service providers
What to askWhat to checkWhat a good answer looks like
Who will do the work?Whether the person on the sales call is the person doing the analysisA senior finance specialist you meet before you sign
What do we receive?Named deliverables, not "advice" or "support"A written list: model, cash forecast, budget review and notes on what was decided
How is it priced?Whether you are buying hours, days or a defined project, and what happens if you need moreA clear basis, stated before work starts, with no surprises when a busy month comes
Where does the work live?Whether the model is built on your live ledger or an offline spreadsheetBuilt on your QuickBooks, Xero or Odoo numbers, with you keeping admin access
How fast do you answer?A stated response window, not "always available"A committed window, such as one business day
What happens if we leave?Who owns the model and the filesYou own the model and every file, handed over in a usable format

How much do fractional CFO services cost?

Pricing

Fractional CFO services cost a fraction of a full-time hire, and the exact figure depends on how much senior time you need and which parts of the scope you want.

Excello quotes CFO work before it starts, based on:

  • Scope. Cash forecasting only, or budgets, unit economics and planning as well.
  • Complexity. One entity and one revenue line model faster than several of each.
  • Timing. Busy periods, such as a budget cycle, may need more time for a while.
  • The books. A ledger that needs catch-up work first is quoted separately.

Fractional CFO work can be taken on its own, with your books staying where they are. The same team can also run the work underneath it.

Payroll

Pay runs posted straight to the ledger, so headcount costs are always current.

Payroll

Tax

US, UAE and UK returns, prepared from closed books.

Tax

Selling online? Ecommerce CFO services add profit per order after ad spend and margin by product.

Frequently asked questions

What are fractional CFO services?

Fractional CFO services give a company a senior finance professional part-time. That person owns the forward-looking finance work: the financial model, cash forecast, budget, unit economics and the analysis behind hiring, pricing and investment decisions.

How is a fractional CFO different from my bookkeeper?

A bookkeeper records what happened and closes the month. A fractional CFO uses those closed books to plan ahead: runway, margin, pricing, hiring and how capital should be spent. The work is judgment on the numbers, done in conversation with you.

Can we take CFO services without bookkeeping from Excello?

Yes. Fractional CFO work can be taken on its own. The forecast is only as good as the books under it, so your ledger is reviewed first, and anything behind can be fixed by your current bookkeeper or with Excello's catch-up work.

What do we need to provide?

Read access to your QuickBooks, Xero or Odoo, plus your payroll, payment and card tools where you use them. Beyond that, your plans and the decisions you are weighing. You keep admin rights to everything throughout.

How much do fractional CFO services cost?

It depends on the scope and how much senior time you need each month. Excello quotes CFO work before it starts, based on which parts of the scope you want, the complexity of the business and the state of your books.

Book a call

Tell us the decision you're stuck on. We'll come back within one business day with a time for a call and scope the work around it.

  • Senior finance judgment, part-time
  • Built on your live ledger numbers
  • Can be taken on its own

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