What a fractional CFO does for a nonprofit
Nonprofit finance has two jobs that pull against each other. The organization has to spend restricted money exactly as donors and grantors intended, and it still has to keep enough unrestricted cash to pay staff when a reimbursement grant pays 90 days late. A fractional CFO keeps both in view for a few hours a week and gives the executive director and the board numbers they can act on.
The work usually covers six areas:
- Annual budget and forecast. A program-level budget the board approves, then a monthly forecast that shows where the year is heading, not just where it has been.
- Restricted funds. Tracking every grant and restricted gift by purpose and time period, and releasing restrictions correctly as the money is spent.
- Grant budgets and reporting. Building budgets for applications, setting indirect cost rates, and preparing financial reports for foundations and government funders on time.
- Cash flow and reserves. A 13-week cash forecast for reimbursement-based grants, plus a reserve policy and a target the board can track.
- Audit and Form 990 readiness. Schedules and reconciliations ready before fieldwork, functional expense allocation that holds up, and a clean handoff to the audit firm and the preparer of the Form 990.
- Board and finance committee. A short monthly or quarterly package the board can read, and someone senior in the room to answer questions.
What the CFO does not do is daily data entry. Your bookkeeper still records gifts and bills, and your audit firm still issues the opinion. The CFO makes the numbers in between useful for decisions.
When does a nonprofit need a fractional CFO
Budget size is a rough guide. Many organizations start to feel the gap somewhere between $1 million and $15 million in annual revenue, once there are several restricted grants, a required audit and a board asking harder questions. The clearer signals are these:
- Your organization spends $1 million or more of federal awards in a year and now needs a Single Audit, or is getting close to that threshold.
- A foundation or government funder sent back a financial report with questions, or a reimbursement was delayed because the backup was incomplete.
- The board approves a budget each year but nobody can say mid-year whether you will finish in surplus or deficit.
- Unrestricted cash is tight even though total cash looks healthy, because most of it is restricted.
- Audit adjustments are large every year and the audit takes longer than it should.
- Your finance director left, or your executive director is doing the finance job on evenings and weekends.
If the books are several months behind, start with cleanup. A fractional controller gets the records and reconciliations current, and the CFO starts once there is something reliable to plan with.
How many hours a week a nonprofit needs
These scopes are typical on Side.work for a nonprofit with a bookkeeper or staff accountant in place.
| Hours a week | What you get | Fits when |
|---|---|---|
| 5 | Monthly financials with budget vs actual, cash forecast, quarterly board package | Stable funding, a few restricted grants, audit already clean |
| 8 to 10 | All of the above plus grant budgets and reporting, restricted fund tracking, audit preparation | Several foundation and government grants, required audit, growing programs |
| 15 to 20 | Project work such as a Single Audit for the first time, a new accounting system, a merger or a capital campaign | A defined project of a few months, then back down to 5 to 10 |
Audit season and grant deadlines are uneven, so the weekly cap on a Side.work contract can go up for six weeks before fieldwork and back down afterwards without renegotiating the whole agreement.
How much does a fractional CFO cost for a nonprofit
Senior fractional CFOs on Side.work set their own rates, usually $175 to $300 an hour. Monthly cost is the hourly rate times hours per week times 4.33. At 5 hours a week that is roughly $3,800 to $6,500 a month, and at 10 hours roughly $7,600 to $13,000 a month in specialist fees. Some CFOs offer a lower rate to nonprofits; you see each rate on the shortlist before you send an intro.
On top of the hours you pay the platform fee for your plan, 12 percent on Starter, 8 percent on Growth and 5 percent on Scale, plus the plan subscription. Most organizations hiring one CFO fit the Starter plan at $99 a month. The full breakdown is on the pricing page, and our guide to fractional CFO hourly rates and monthly cost shows the cost at every common hour level.
Compare that with the alternatives. A full-time nonprofit CFO means a senior salary, benefits and a long search, for a role that may hold 10 hours of real CFO work a week. An outsourced accounting firm costs less but is built around bookkeeping, and the person you talk to day to day is rarely a former finance executive. Program staff time, which is what usually covers the gap today, is the most expensive option of all.
A typical week, Fractional CFO
10 hours a week
- Hourly rate
- $175 to $300
- Monthly cost
- $7,600 to $13,000
Nonprofit fractional CFO vs bookkeeper vs audit firm
Boards often ask why they need a CFO when they already pay an accountant and an auditor. Each answers a different question.
| Role | Main question it answers | Typical output |
|---|---|---|
| Bookkeeper | What came in and went out? | Recorded gifts, bills and payroll, reconciled accounts |
| Audit firm | Are last year's statements fairly stated? | Audit opinion, management letter, sometimes the Form 990 |
| Controller | Are the books right and closed on time? | Monthly close, grant and restriction schedules, audit support |
| Fractional CFO | Can we afford this, and what should we do next? | Budget, forecast, reserve policy, grant strategy, board reporting |
Your audit firm cannot design the systems it audits without hurting its independence, so it is not a substitute for a CFO. Smaller organizations often pair a bookkeeper with a 5 hour CFO. Larger ones add a controller between them.
What the first 90 days look like
In the first month the CFO gets read access to the accounting system, the bank, payroll and the grant files, then builds a list of every active grant with its restrictions, reporting dates and spending to date. Most organizations learn something in this step, usually a grant that is behind on spending or a report that is due sooner than anyone remembered.
In the second month they build the cash forecast and a monthly package with budget vs actual by program, and agree with the executive director and treasurer what goes to the board and when. In the third month the routine starts paying off: a draft budget process for next year, a reserve target, and an audit preparation calendar so fieldwork goes faster.
By day 90 the board should be able to answer three questions in one meeting: how much unrestricted cash do we have, are we on track for the year, and which programs cost more than they bring in.
How hiring a nonprofit CFO works on Side.work
Pick fractional CFO, enter the hours per week and your budget, and add a line about the organization, for example a $4 million community health nonprofit with two federal grants and a required audit. Side.work returns a ranked shortlist of verified CFOs with live weekly availability and their hourly rate, so you only talk to people who can fit your schedule and your budget.
Every profile is checked for a work email domain, a LinkedIn profile, live portfolio links and payout identity, and each specialist confirms their side work does not conflict with their employment terms. Send intros, take a call with your executive director or treasurer, then sign a contract with a weekly hours cap and a notice period. An NDA is attached by default, which matters when the CFO sees donor records. Each week the CFO submits a timesheet, you approve the hours and pay one invoice. The full flow is on how it works.
If you are a small for-profit company rather than a nonprofit, the page on a fractional CFO for small business covers lender work, margins and owner reporting instead.
Questions to ask a nonprofit CFO before you hire
- Which nonprofits have you worked with, by budget size and funding mix?
- How do you track restricted grants and release restrictions in our accounting system?
- Have you prepared for a Single Audit, and what did the auditors find?
- How do you set and defend an indirect cost rate in grant budgets?
- What does your board package look like? Show us one with the names removed.
- How many clients do you carry, and how do you handle the weeks before audit fieldwork?
Strong candidates answer with specifics: the funders they reported to, the system they used, what changed after they arrived. Talk to two or three people before you decide. Your plan includes the intros to do it.