Fractional Controller vs Fractional CFO: Roles, When to Hire and a 90-Day Plan

A fractional controller is a part-time controller who owns your books: the month-end close, reconciliations, accounting policies, internal controls and the accuracy of your financial statements. A fractional CFO works on direction, meaning the budget, forecast, cash runway, capital plan and the story you tell your board and lenders. Most growing companies need the controller first, because a forecast built on a late or unreliable close is guesswork.

This guide explains what a fractional controller does week to week, how controller and CFO responsibilities split, when to hire one, the other or both, and a 90-day plan for getting both roles working from the same numbers. If you are comparing fees, the separate guide to fractional controller hourly rates and pricing models covers that in detail.

What a Fractional Controller Does

The U.S. Bureau of Labor Statistics classes controllers as a type of financial manager and describes the job plainly: "Controllers direct the preparation of financial reports that summarize and forecast an organization's financial position." The same page notes that controllers often oversee the accounting, audit and budget departments, and that they prepare reports required by government agencies. A fractional controller does that work part time, usually on a set number of hours each month.

In practice, the scope of a fractional controller covers these areas:

• Close management. Setting the close calendar, assigning tasks to the bookkeeper or staff accountant, and signing off when the month is done. A 5-day monthly close checklist with AP, AR and reconciliation SOPs shows what a tight calendar looks like once it is running.
• Reconciliations and review. Tying the general ledger to bank and card statements, payroll registers, merchant payouts and subledgers, then reviewing the work of the people below them.
• Chart of accounts and policies. Fixing account structures that hide cost of goods sold, deferred revenue or department spend, and writing short policies for capitalization, accruals and revenue recognition. A clean chart of accounts built for reporting is usually one of the first deliverables.
• Internal controls. Separating who sets up vendors from who approves payments, controlling changes to bank details, and keeping evidence for each control.
• Financial statements. Producing the income statement, balance sheet and cash flow statement each month with a short variance note on every line that moved materially.
• Audit and tax support. Preparing schedules for the outside CPA or auditor, and leading any existing bookkeeping team day to day.

Fractional Controller vs Fractional CFO: Who Owns What

The cleanest way to split the two roles is by time horizon. The controller owns what already happened and makes sure it is recorded correctly. The CFO owns what happens next and uses the controller's numbers as the source of truth. The same BLS financial managers page notes that experienced financial managers may advance to become CFOs and describes those executives as "responsible for the accuracy of an organization's financial reporting," so the CFO still signs off on the result even when the controller does the detailed work.

Shared items need clear edges written down. Revenue is the usual example: the controller decides how revenue is recognized and when, and the CFO forecasts how much will come in. If both people edit the same revenue number, reports drift apart within a quarter.

For a fuller view of the strategic side, see this founder's guide to what CFOs do and the responsibilities they carry.

Controller vs CFO Responsibilities in a Normal Month

A good handoff between the two roles looks the same every month. The fractional controller closes the books and delivers a reporting package by a fixed working day. The fractional CFO reviews trends, refreshes the forecast within a few days of close and agrees on a short list of actions with the leadership team. The two meet weekly, even for 30 minutes, to clear blockers and settle definitions such as what counts as a booked customer or which costs sit in cost of goods sold. The monthly leadership meeting can then open with the controller's results and close with the CFO's forecast and actions.

When to Hire a Fractional Controller, a Fractional CFO or Both

The right first hire depends on where the pain sits. These triggers are practitioner guidance drawn from common engagement patterns, not a formal standard.

Start with a fractional controller when:

• The close takes more than three weeks, or no one can say when it will finish.
• Bank, card or payroll accounts are months behind on reconciliation.
• Your outside CPA or auditor keeps sending back adjusting entries.
• A lender, investor or acquirer has asked for reviewed or audited statements and you are not sure the books would hold up.

Add a fractional CFO when:

• You need an operating budget tied to a hiring plan.
• You are preparing to raise equity or debt, or a covenant is getting tight.
• Pricing, margins or unit economics need analysis before a big decision.
• The board wants a consistent monthly pack with forecasts and actions.

Run both from the start when the books are unreliable and a funding event or board deadline is already on the calendar. In that case the CFO still sets targets in month one, but treats every number as provisional until the controller has closed at least one clean month. A business owner's guide on when to hire a fractional CFO goes deeper on the CFO triggers.

Two related models are worth knowing. A virtual CFO works remotely on a similar part-time basis and often bundles reporting with advisory work. An interim CFO steps in full time for a fixed period after a departure, deal or crisis, which suits a different situation from ongoing part-time support.

Sizing the Engagement: Full-Time Benchmarks and Hours

BLS does not publish a separate wage for controllers or CFOs, so the closest official benchmarks are the financial manager and chief executive categories. The same BLS page reports that "The median annual wage for financial managers was $166,570 in May 2025," with the lowest 10 percent earning less than $94,310 and the highest 10 percent more than $323,270. For the CFO side, "The median annual wage for chief executives was $213,990 in May 2025," and BLS lists chief financial officers as one type of chief executive. These are salaries only, before payroll taxes, benefits, bonus and recruiting costs.

Worked example (illustrative). A 60-person services company is weighing two full-time hires against a fractional setup.

Hiring both roles full time at the BLS medians would mean $380,560 in base salary alone ($166,570 plus $213,990). The fractional setup uses about 16.2 percent of the hours two full-time hires would provide. Whether that is cheaper depends on the hourly or retainer rates you negotiate, which vary by scope and region. Use the hours above as your sizing input, then compare quotes with the help of the guide on outsourced controller services pricing for 2026. The hours themselves are a planning assumption, and controller hours are usually heaviest in the first 60 days.

The 90-Day Plan for a Fractional Controller and CFO

The first 90 days set habits that carry through the year. The plan below assumes both roles start together. If you are hiring only a fractional controller, follow the controller steps and add the CFO steps later.

Days 1 to 30: Stabilize the Base

Fractional controller

• Map every balance sheet account to an owner and a reconciliation frequency.
• Reconcile cash, cards, payroll and merchant accounts for the most recent closed month, and list every unreconciled item older than 30 days.
• Review the chart of accounts and fix lines that hide cost of goods sold, deferred revenue or department spend.
• Set a folder structure and naming rule for close evidence, organized by month and account.
• Draft a close calendar with a target day for each task.

Fractional CFO

• Interview department heads and read recent metrics.
• Write a one-page plan for the year with targets for growth, gross margin and cash runway.
• Agree on the metrics that matter and the review cadence.
• Outline the board pack and agree who updates each section after close.

Days 31 to 60: Speed and Control

Fractional controller

• Run the new close calendar and record every slipped task and its cause.
• Add maker and checker steps for vendor setup, bank detail changes and payments.
• Move repeat entries such as prepaid amortization, accruals and depreciation into schedules.
• Write short policies for capitalization, revenue recognition and expense approval.

Fractional CFO

• Build a driver-based model: revenue linked to pipeline and retention, payroll linked to the hiring plan, cost of goods sold linked to volume or vendor terms.
• Run the first forecast against the budget and explain the gaps.
• Add a cash bridge that explains the change in cash from month to month. A rolling forecast setup keeps that bridge current without rebuilding the model each quarter.

Days 61 to 90: Document and Hand Off

Fractional controller

• Document every recurring journal entry and reconciliation, with an owner and a backup.
• Add a monthly reconciliation review with dated sign-offs.
• Track two measures: tasks completed on time, and reconciling items older than 30 days.
• If an audit is coming, start the provided-by-client list now. A PBC request list for first-time audits gives a workable template.

Fractional CFO

• Finalize the board pack: three statements, a one-page narrative, the forecast view and the actions for next month.
• Review covenant headroom if there is debt.
• Prepare a data room index if a raise is within the next two quarters.

Internal Controls Without Heavy Process

Controls do not need to be elaborate in a small company. A common reference point is the COSO Internal Control Integrated Framework, which COSO says was "originally issued in 1992 and refreshed in 2013." For a company of 20 to 200 people, a practical version is a two-page policy covering who approves spend at each level, who can create vendors, who can change bank details and who reviews payroll before it is released. Each control should leave evidence, such as an approval in the bill-pay system or a signed reconciliation.

If you expect an audit or institutional investors within a year or two, a SOX-lite set of internal controls for scale-ups is a sensible target for the end of the first 90 days.

2026 Items to Build Into the First Quarter

A fractional controller starting in late 2026 should check three tax and compliance items that changed recently or affect how records are kept.

1099 thresholds. The IRS states that "For payments made in 2026, the reporting threshold is $2,000," up from $600 for payments made before 2026. Vendor setup should still collect a Form W-9 from every contractor, and the year-end vendor review should apply the new threshold. The details are in this guide to the 2026 1099 reporting threshold.

Research and development costs. Under the One Big Beautiful Bill (Public Law 119-21), the IRS explains that "For taxable years beginning after Dec. 31, 2024, taxpayers may deduct domestic research or experimental expenditures" in the year paid or incurred, with an option to amortize over at least 60 months. Foreign research costs are still amortized over 15 years. Software and product companies need the controller to tag domestic and foreign R&E costs in the ledger so the CPA can make the right election.

Record retention. The IRS says to "Keep employment tax records for at least 4 years after the date that the tax becomes due or is paid, whichever is later," and the general period for other records is 3 years where no exceptions apply. The evidence folder set up in the first 30 days should follow these periods at a minimum.

What Good Looks Like at Day 90

By the end of the first quarter, the close should land on the promised day for at least two months running. Reconciliations should be current, with no unexplained items older than 30 days. Evidence should be filed by month and account. The forecast should refresh within a few days of close, and the board pack should follow the same layout each month. Every recurring task should have one owner and one backup, and a finance question from any department head should get an answer that matches the numbers in every system.

Frequently Asked Questions

What is a fractional controller? A fractional controller is an experienced controller who works part time for several companies, usually on a monthly retainer or a set block of hours. They run the month-end close, review reconciliations, set accounting policies and controls, and produce accurate financial statements.

What is the difference between a fractional controller and a fractional CFO? The controller is responsible for recording what already happened accurately and on time. The CFO uses those results to plan budgets, forecasts, cash runway and financing. The controller usually reports to the CFO or the CEO.

Do I need a fractional controller before a fractional CFO? Usually yes, if your books are late or unreliable, because the CFO's forecast depends on the controller's numbers. If a fundraise or board deadline is close, you can run both roles together and treat early forecasts as provisional.

How many hours does a fractional controller work? It depends on transaction volume, the number of entities and the state of the books. The 40 hours a month in the worked example above is an illustrative planning figure. Hours are usually higher in the first two months while reconciliations and the close are rebuilt.

How much does a fractional controller cost? Fees depend on scope, hours and region. The guide to fractional controller hourly rates linked at the top of this article compares hourly, retainer and project pricing using BLS wage data.

Next Step

Madras Accountancy supports US businesses and CPA firms with bookkeeping, month-end close, controller-level review, CFO and advisory work, payroll, tax preparation and audit support. To talk through which roles your finance function needs and how a 90-day plan would apply to your books, contact our team.