Virtual CFO
Fractional CFO
Finbryn's fractional CFO service, working from your QuickBooks Online, Xero or NetSuite books, gives a US business senior finance leadership on a part-time schedule: a monthly close review, a rolling cash and runway view, board or investor materials, and a second opinion on pricing, hiring and financing decisions, without the salary, payroll tax and benefits load of a full-time hire.
13-week cash forecast
Illustrative client ยท August 2026
USD
- Cash today
- $244,220
- Lowest week ahead
- 239,800
- Largest outflow
- Payroll, 46,300
Illustrative. An example of the document, not a client's figures.
A full-time CFO in the United States is a six-figure fixed cost before a single benefit or bonus is added, and most businesses under roughly $10 million in revenue do not have enough finance work to fill that seat five days a week. A fractional CFO fills the same seat on a fraction of the hours: a standing monthly review once the books close, a scheduled block of hours for planning and analysis, and availability for the decisions that do not wait for the calendar, such as a supplier demanding faster payment terms or a customer asking to stretch theirs.
The starting point is always the closed books. We do not run the close ourselves unless bookkeeping is part of the engagement; a fractional CFO reads what the bookkeeper or controller already reconciled, checks it against the prior month and the budget, and turns the variance into a decision: hold hiring another quarter, renegotiate a vendor contract, or draw on a line of credit before it becomes urgent. That distinction matters because it is the difference between a report and a conversation about what to do next.
For a business at this stage, the recurring work usually breaks into three threads that reinforce each other. The first is cash: a rolling view of what is in the bank and what is coming, refreshed often enough that a tight week is visible weeks before it lands. The second is performance against plan: a monthly budget-versus-actual comparison with the variance explained in plain language, not just flagged in a spreadsheet. The third is the outward-facing material: a board deck, a lender package, or an investor update built from the same numbers so nothing gets restated for a different audience.
What separates this from a bookkeeper doing more hours is judgment applied under a specific US operating context: quarterly estimated tax payments that need to be planned for months ahead of the due date, a line of credit renewal that depends on trailing twelve-month EBITDA, a state franchise tax bill that lands at an inconvenient time of year. None of that requires a full-time hire, but all of it benefits from someone who has seen the pattern before and reviews the numbers with an owner's stake in the outcome, backed by a second, senior review before anything reaches you.
Engagements typically start with a short scoping conversation covering your current software, the state of your books, and the two or three decisions actually in front of you right now, then settle into a monthly rhythm with room to flex when a raise, a loan renewal or a slow season changes what the business needs from the seat.
What is included
A fractional CFO engagement centers on a recurring monthly review: cash position, gross and net margin trend, and the two or three variances that actually moved the month, walked through on a call rather than left in an email. Around that core sit the deliverables the business needs at its stage. A company approaching a raise gets investor-ready reporting and a fundraising model; a company carrying a bank loan gets covenant calculations tied to the loan agreement's exact definitions; a company scaling headcount gets a hiring plan tested against the cash forecast before an offer goes out. The scope is written down before work starts, listing exactly which of these are active in a given month, so nothing is assumed and nothing quietly expands the engagement without a conversation first.
How the process works
The month begins once the books close, ideally by the fifth business day, since a CFO review built on stale numbers loses most of its value. From there the pattern is consistent: pull the current financials, compare against budget and against the prior month, isolate what actually changed and why, and prepare a short set of talking points ahead of the review call rather than a long report nobody reads end to end. Between calls, a fractional CFO stays reachable for the decision that cannot wait a month, such as a large new contract that will strain cash before it pays off or a vendor price increase that changes the margin on a core product line. Every model and note goes through a senior review before it reaches you, so a first-pass number never lands in your inbox unchecked.
Who this is for
This fits a business that has outgrown gut-feel decisions but has not reached the size where a full-time finance executive is justified on the payroll. In practice that is often a company somewhere past $1 million in annual revenue that is either growing fast enough that last quarter's assumptions no longer hold, carrying debt with a lender that expects regular reporting, or heading toward a fundraise, a refinancing or a sale where the numbers need to survive outside questioning. It is a poor fit for a business that has no bookkeeping in place yet; a fractional CFO needs closed, reconciled books to work from, and if that is not the case today we scope a bookkeeping catch-up first so the analysis sits on a real foundation instead of an estimate.
Common problems we fix
The most frequent starting point is an owner who can see the bank balance but cannot say with confidence why it moved, or a board asking for a variance explanation that takes days to assemble by hand each month. Close behind that is a business that discovers a covenant or a cash crunch only when it is already happening, because nobody was watching thirteen weeks out. A third common pattern is a company mixing personal and related-party transactions into the operating numbers so badly that a lender or investor cannot read the real trend underneath. In each case the fix is the same shape: build the recurring view once, tie it to source data that updates automatically where the software allows it, and put a standing review on the calendar so the next surprise gets caught while there is still time to act on it.
Software and integrations
Work runs inside whatever accounting platform you already use, most often QuickBooks Online or Xero, with NetSuite for businesses that have outgrown a small-business ledger. Reporting and planning layers sit on top: Fathom or Google Sheets for a management dashboard, a dedicated model in Excel or Google Sheets for anything forward-looking such as a budget or a fundraising case. Nothing is built on a proprietary platform you cannot take with you; the file lives under your own subscription or shared drive, so if the engagement ever ends, the models and dashboards stay yours, not locked behind a tool only we can open.
What it costs
Fractional CFO time is priced separately from bookkeeping and billed on the scope agreed before work starts, not an hourly guess. The published starting point sits on the pricing page as an add-on to a bookkeeping plan, since a CFO review is only as good as the books underneath it. The exact fee depends on how many recurring deliverables are active in a given month (a monthly review alone costs less than a monthly review plus lender reporting plus board prep) and whether the books need a catch-up first. Your fee is confirmed in writing before the first month begins, and it changes only when the scope changes, with that change agreed in advance rather than discovered on an invoice.
The calendar behind the engagement
A US fractional CFO engagement runs against a fixed annual calendar whether anyone mentions it out loud or not: quarterly estimated tax payments, a state's franchise tax deadline, a lender's quarterly covenant test, an annual budget cycle that needs to be built before the fiscal year it covers begins. Part of the value of a standing engagement is that these dates get planned for months ahead rather than discovered a week before they are due, since a quarterly estimated payment that was not planned for in the cash forecast is one of the more common causes of a month that suddenly feels tight for no obvious reason. We keep that calendar visible inside the monthly review rather than treating it as a separate compliance task, so the same person watching your cash is also watching the dates that could disrupt it.
How we work
The process
- 1
Scoping call
We review your current books, software access and the specific decisions in front of you, and agree which recurring deliverables are active for month one.
- 2
Baseline review
Before the first regular cycle, we read the prior 3 to 6 months of financials to establish the trend line the monthly review will be measured against.
- 3
Monthly close review
Once your books close for the month, we compare actuals to budget and to the prior period, and isolate the variances worth a conversation.
- 4
Review call
A standing call walks through cash, margin and the month's key decisions, with talking points prepared in advance rather than read from a raw report.
- 5
Between-call support
Ad hoc questions on pricing, hiring or a specific contract get a response between scheduled calls, scoped to what was agreed at kickoff.
- 6
Senior review
Every model or note goes through a second, senior reviewer before it reaches you, checking the logic and the source data behind each figure.
- 7
Quarterly scope check
Roughly every quarter we revisit whether the scope still matches your stage, and adjust hours or deliverables up or down as needed.
Fractional CFO
Common problems we fix
The problem
How we fix it
- The owner sees the bank balance move but cannot explain whyWe build a monthly variance review that ties every material swing back to a specific driver, not a vague total.
- Board or investor updates take days to assemble each monthWe build a repeatable template pulling from your closed books, so assembly time drops to a review, not a rebuild.
- A covenant or cash shortfall is discovered only after it happensWe add a rolling forward view, often paired with a 13-week cash flow forecast, so a tight period is visible weeks ahead.
- Owner draws and related-party transactions blur the real operating trendWe separate and label these consistently each month so the underlying business performance is readable on its own.
- Hiring and pricing decisions get made on gut feel with no cash checkWe test the decision against the current cash forecast and margin data before you commit, not after.
Pricing
Fractional CFO work is priced as an add-on to a bookkeeping plan and scoped to the deliverables active that month. Starting figures and the calculator are published on the pricing page; your exact fee is confirmed in writing once we know your software, transaction volume and which recurring reports you need.
Fractional CFO
Glossary
- Runway
- The number of months a business can keep operating at its current cash balance and burn rate before running out of cash.
- Burn rate
- The net amount of cash a business spends each month, calculated as cash out minus cash in over the period.
- Covenant
- A financial condition set in a loan agreement, such as a minimum cash balance or a maximum debt-to-EBITDA ratio, that a borrower must maintain.
- Variance
- The difference between a budgeted or forecast figure and the actual result for the same period, usually shown in dollars and as a percentage.
- Trailing twelve months (TTM)
- A rolling 12-month window of financial results ending with the most recently closed month, used to smooth out seasonality.
Questions
Frequently asked questions: Fractional CFO
How many hours a month does a fractional CFO actually need?
It depends on your stage and what is active that month. A steady-state business might need a handful of hours for a monthly review; one heading into a raise, a loan renewal or a sale needs considerably more. We scope hours to the deliverables agreed at kickoff, not a flat retainer that assumes every month looks the same.
How is this different from hiring a bookkeeper or controller?
A bookkeeper or controller closes the books and gets the numbers right. A fractional CFO takes those closed numbers and turns them into a decision: whether to hire, how to price, when to draw on a credit line. The two roles work together rather than replacing each other.
Can a fractional CFO help us qualify for a business loan?
We prepare the financial statements, projections and cash flow narrative that most US lenders request as part of underwriting, and can join the lender conversation if that helps move the application along. The lending decision itself stays with the bank.
Do you replace the need for a tax preparer or CPA?
No. A fractional CFO handles forward-looking planning and decision support. Federal and state tax returns still need a credentialed preparer to sign and file them, and we coordinate with that preparer rather than replace them.
What size of business is a good fit for this service?
This usually fits a business that has outgrown single-owner, gut-feel decision-making, which is more about the pace and complexity of decisions than a specific revenue threshold. A business with no bookkeeping in place yet typically needs that in order first.
Can the engagement scale down in a slow month?
Yes. The scope is reviewed roughly quarterly, and hours or deliverables can flex with what is actually happening in the business, rather than staying fixed at whatever level you started at.
Who actually reviews the numbers before we see them?
A named team works the account, and a senior reviewer reviews every model or report before it reaches you. You will always know who is assigned and how to reach them directly between calls.
What happens if our books are not current when we start?
We scope a bookkeeping catch-up first, priced and timed separately from the ongoing CFO engagement, so the review that follows is built on real, reconciled numbers rather than an estimate.
How is this different from a bookkeeper?
A bookkeeper records what already happened. A fractional CFO uses those records to help you decide what happens next: pricing, hiring, cash timing, fundraising.
How many hours a month does this take?
You can start with a standing monthly review plus ad hoc questions between calls. The scope is agreed up front and can flex with your stage.
Do you replace my controller or accountant?
No. A fractional CFO sits above the day-to-day close and works alongside whoever keeps your books, whether that is us or your existing team.
What is included in fractional CFO?
Fractional CFO covers monthly finance review call covering cash, margin and the month's variances and a rolling cash position and runway view. The exact scope is agreed and set out in writing before work starts, so you know precisely what is and is not covered before the first deliverable arrives.
Related services
- Virtual CFOFP&AOngoing financial planning and analysis: budget-to-actual tracking, margin and cost analysis, and the monthly pack that explains why the numbers moved.
- Virtual CFOBudgetingAn annual budget built from your real numbers, broken out by month and department, that becomes the baseline every later report is measured against.
- Virtual CFO13-week cash flow forecastA rolling week-by-week cash forecast that shows what is coming in, what is going out, and where the next 13 weeks get tight.
- Virtual CFOKPI designA short list of the numbers that actually run your business, defined once and tracked consistently, instead of a dashboard nobody opens.
Industries
- Startups and VC-backed companiesBookkeeping and reporting for early-stage, venture-backed companies watching burn, runway and investor reporting closely.
- SaaSBookkeeping and reporting for subscription software businesses tracking recurring revenue, deferred revenue and burn.
- Agencies and consultanciesBookkeeping for marketing agencies, design studios and consulting firms billing clients on retainers and project fees.
- Ecommerce (Amazon and Shopify)Bookkeeping for online sellers on Amazon, Shopify, Etsy and their own storefronts, built around clean payout and sales tax data.
- ManufacturingBookkeeping for small and mid-size manufacturers tracking raw materials, work in process and finished goods inventory.
Related guides
- CFO and financeBurn Rate and Runway: How to Calculate and Extend ThemHow to calculate gross burn, net burn, and runway, apply the default alive test and burn multiple, and extend runway before your board needs to ask.
- CFO and financeWhat Goes in a Board Reporting Pack (With a Monthly Template)What a startup board pack should include: financials, KPIs, cash, a hiring plan and risks, plus a monthly template and realistic timing after close.
- CFO and financeThe 13-Week Cash Flow Forecast: A Step-by-Step Guide for OwnersHow to build a 13-week cash flow forecast using the direct method, run a weekly variance review, and meet what lenders expect to see.
Sources
- [1]IRS, Tax Calendars (Publication 509), September 2026
- [2]IRS, Estimated Taxes, September 2026
- [3]QuickBooks Online, product overview, September 2026
- [4]Xero, product overview, September 2026
Next step
Talk to the team that would run your books
A short call covers your setup, your software and what a first month would look like. You get a written scope and price after it.
Need this in writing? Download a one to two page scope sheet for Fractional CFO: what is included, the process, and where pricing lives.
Download the scope sheet