Fractional CFO
Fractional CFO services for small businesses.
Updated August 2026
Tired of being your own CFO? Want your life back?
Owner decisions get harder as the business grows. A bookkeeper records what happened and an accountant closes and files it. A fractional CFO is your financial strategist, looking forward: cash-flow foresight, pricing, hiring ROI, growth capital, and the call on whether the next move is the right one.
Partner-led, CPA-reviewed, one fixed monthly fee. Your partner replies within one business day. Year-round, not just at tax time.
Where a fractional CFO fits
Bookkeeper, accountant, fractional CFO
A bookkeeping and accounting team keeps track of the numbers. A fractional CFO looks forward, partnering with you on the smartest way for the business to make money and reinvest it. Different disciplines, all three usually needed at once.
Bookkeeper
Records what happened
Categorizes every transaction, reconciles the bank and credit cards, keeps the general ledger clean. The trustworthy baseline every downstream decision depends on. Backward-looking.
Accountant
Closes and files it
Runs month-end and year-end close, produces GAAP financial statements, prepares and signs the tax return. Accuracy and compliance for the periods that have already ended.
Fractional CFO
Decides what happens next
Turns those numbers into forward-looking judgment: cash-flow foresight, pricing, hiring ROI, growth capital, product profitability, and the strategic call on the next move. Partners with the owner on the money decisions that shape the business.
What you get
Questions we help you answer
These are the calls small business owners make every quarter that usually get made on gut instinct. Made on real numbers instead, they get made better.
- How do I solve my cash-flow issues, and how do I see the next one coming before it's severe?
- We stand up a 13-week rolling cash forecast against your actual receivables, payables, payroll, and debt service, refreshed weekly. Variance to forecast is where problems show up two months before the bank balance does.
- Why am I selling more but making less?
- Unit-economics analysis: gross margin by customer, product, and channel; a real look at how much your cost of delivery has crept up; and where the leaks are between top-line growth and bottom-line profit.
- Is this new product, service, or location going to be profitable?
- A contribution-margin model that pressure-tests the assumptions before you commit capital: what has to be true for it to break even, and what's a realistic payback window.
- Are my employees supporting profitability enough to make their payroll a worthwhile investment?
- Revenue-per-head and gross-profit-per-head trends against benchmarks; a per-team look at whether the added cost is producing added output; and the hard call on when a hire is a growth investment vs a drag.
- How do I improve the inefficient processes in my business that are costing me time and money?
- A finance-stack audit of your close, AP, AR, and reporting workflows: where hours go, what can be automated, and what actually pays off if you fix it. Not consultant-slideware — implementation.
- Can I afford this: the hire, the loan, the equipment, the acquisition?
- Runway impact, financing options compared, covenants and personal-guarantee exposure, and the debt-service coverage the deal actually leaves you with. The math before the handshake.
What a fractional CFO owns
The forward-looking financial work most small businesses never staff for. If your finance function stops at the tax return, this is what is missing.
Cash flow & runway
A rolling 13-week cash forecast so you see shortfalls weeks ahead, time large outflows, and stop managing the business from the bank balance.
Budgets & FP&A
An annual budget and driver-based model built on your actuals, with monthly plan-vs-actual variance analysis and a clear read on unit economics.
Board & lender reporting
Board packs, investor updates, and bank/SBA-ready reporting packages that translate the numbers into decisions, not just statements.
Pricing & profitability
Gross-margin, pricing, and cost analysis to find where the business actually makes money and where it quietly leaks it.
M&A & exit readiness
Diligence preparation, data rooms, quality-of-earnings support, and clean books that hold up when a buyer, lender, or investor looks closely.
Systems & controls
Right-sized financial controls, approval workflows, and a finance stack that scales with you, without enterprise overhead you don't need.
When a small business needs a fractional CFO
- You're steering off the bank balance instead of a real cash forecast.
- Revenue is near or past ~$1M and the financial questions are getting harder than the books can answer.
- You're raising capital or taking on a loan and need board- and lender-ready numbers.
- An acquisition, sale, or exit is on the horizon and the books need to hold up under diligence.
- Your books are clean, but no one is turning them into a plan, a budget, or a pricing decision.
If you need CFO-level judgment but not a full-time executive, the right move is to hire a fractional CFO instead of staffing the seat. Not sure yet? Read: do you actually need a fractional CFO?
How a Rubric Financial fractional CFO engagement works
- 1
Intro call & scope
We start with a short call to understand the business, the decisions ahead, and what a CFO needs to own. You get a fixed-fee proposal scoped to your needs the next business day.
- 2
Onboarding & baseline
Your partner gets into the numbers, cleans up the reporting foundation, builds the forecast and budget, and establishes the baseline you'll steer from.
- 3
Monthly operating rhythm
Each month you get a close, a plan-vs-actual review, an updated cash forecast, and a working session on the decisions in front of you, with your partner reachable within one business day in between.
- 4
Strategic milestones
When a raise, loan, acquisition, or exit comes up, your CFO is already in the numbers and runs the financial workstream end to end, no ramp-up, no scramble.
Why a Rubric Financial fractional CFO
Rubric Financial is partner-led and CPA-reviewed. The same senior partner runs your engagement start to finish, and because we also run the bookkeeping, accounting, and tax under one roof, the CFO work is built on numbers we trust. One fixed monthly fee, fee-only, no commissions.
What you can count on
Three commitments, written down.
CPA-signed accuracy guarantee
If a return signed by Rubric Financial triggers a math-error notice, we fix it and pay the resulting IRS penalty, subject to your engagement letter's terms. CPA review on every filing.
One-business-day response
Your partner replies within one business day, and there's no per-question fee. Year-round access, not just tax season.
Fee-only, no kickbacks
We don't sell insurance, annuities, or investment products. Our only revenue is your monthly fee. No conflicts.
Frequently Asked
Fractional CFO questions we hear often
- What does a fractional CFO do?
- A fractional CFO owns the strategic finance function part-time: cash-flow forecasting, budgeting and FP&A, board and lender reporting, pricing and profitability analysis, and financial leadership through raises, loans, acquisitions, and exits. It is the senior financial judgment of a CFO without the cost of a full-time executive hire.
- How is a fractional CFO different from a bookkeeper or accountant?
- Bookkeeping and accounting tell you what already happened, accurate books, closed months, filed returns. A fractional CFO uses those numbers to drive what happens next: forecasting cash, setting budgets, pricing, and making the financial case to boards, banks, and buyers. At Rubric Financial the same partner-led team can do both, so the CFO work is built on books we trust.
- When does a small business need a fractional CFO?
- Common triggers: you're making decisions off the bank balance instead of a forecast, approaching or past ~$1M in revenue, raising capital or taking on debt, planning an acquisition or exit, or your books are clean but no one is turning them into a plan. If you need CFO-level judgment but not 40 hours a week of it, fractional is the right fit.
- How much does a fractional CFO cost?
- It depends on scope and cadence. Rubric Financial typically works on a fixed monthly fee scoped to what you actually need, with retainer or hourly arrangements where they fit better, and no per-question fees. See our fractional CFO cost breakdown for how pricing works and for market context.
- Is the fractional CFO engagement remote?
- Yes. Rubric Financial is headquartered in San Francisco at 2 Embarcadero Center and works with small businesses across the U.S., run remotely with periodic in-person meetings as needed.
- Who actually does the work?
- A partner. Rubric Financial is partner-led, the same senior person runs your engagement start to finish, backed by CPA review. No rotating associates, no handoffs, no per-question billing.
Keep reading
Runway
How many months of operations the business can sustain at the current cash balance and net burn rate.
GlossaryDCF (Discounted Cash Flow)
A valuation method that estimates what a business is worth today by projecting its future cash flows and discounting them back at a rate reflecting their risk.
GlossaryBusiness Valuation
The process of estimating what a business or ownership interest is worth, using income, market, and asset approaches, for purposes ranging from sale to tax to divorce.
GuideWhen Does a Small Business Need a Fractional CFO?
Bookkeepers record. Accountants close and report. CPAs file. None of them help you make the next decision. That's what a CFO does.
GuideBuilding a 13-Week Cash Forecast
The single most useful financial tool for a small business. Not a budget, not a P&L, a weekly cash projection you actually use.
GuideBusiness Valuation Methods Explained
Three approaches (income, market, and asset), and how appraisers reconcile them into a single defensible number.
Sound familiar?
- Your business is profitable, but you're not sure how to grow from here — and the wrong move at this stage costs more than at any earlier one.
- You want the next business move to be based on strategy grounded in real numbers rather than intuition. You've been the intuition CFO long enough.
- Your business has financial pain points that need relief and resolution, and you're not sure whether the answer is more information, a better system, or a different call altogether.
If any of that lands, the fit call is the next step. It's free, it's a conversation, and it's how we scope a proposal.
Ask a partner what CFO support would look like.
Tell us where the business is headed. You'll get a fixed-fee proposal scoped to what you need the next business day.