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What Is a Fractional Controller—And When Does Your Business Need One?

Alexander Ronzino
Alexander Ronzino, MBA
Partner, Rework Capital
Author
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If your business is growing fast but your financial back-office is struggling to keep pace, it might be time to consider hiring a fractional controller.

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A fractional controller is a seasoned financial professional who oversees accounting operations on a part-time or contract basis. Unlike a bookkeeper or accountant, a controller brings strategic oversight—ensuring accuracy in financial reporting, establishing internal controls, and preparing your business for future audits or investor due diligence.

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Why Fractional?

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Hiring a full-time controller can be costly—often six figures annually, not including benefits. A fractional controller provides access to the same high-level expertise, scaled to your actual needs and budget. This flexible model is ideal for startups, growth-stage companies, or businesses in transition.

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What They Do

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  • Oversee accounting and month-end close

  • Manage payroll, A/R, and A/P systems

  • Establish financial policies and controls

  • Ensure GAAP compliance and reporting accuracy

  • Prepare your company for audits or financial reviews

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Controller vs. CFO: What’s the Difference?

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While a controller ensures financial operations are accurate and compliant, a CFO focuses on financial strategy, forecasting, capital planning, and investor relationships. At Rework Capital, we often deploy fractional controllers alongside our Fractional CFO services, creating a powerhouse financial backbone that supports scale.

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Is It Time?

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If your leadership team lacks clear financial reports, your accounting is error-prone, or you’re preparing for fundraising or acquisition, a fractional controller might be your next best hire.

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At Rework Capital, we help visionary founders build robust financial infrastructure—starting with the right talent, at the right time. If you're unsure whether you need a controller, CFO, or both, we’re here to guide you.

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